BIOFINpdf

BIOECOTENS Strong Degreasing agent

FEATURES - Aspect: yellowish liquid with characteristic smell - pH solution 1:10= approx. 10

PROPERTIES BIOECOTENS has been formulated to obtain the best from to the synergy between various type of surfactant used. BIOECOTENS allows to obtain very optimal degrease also on raw material reach in fat such as pigskins or sheepskins. BIOECOTENS used in small quantity has good wetting back properties. The special formulation that does not favour the developing of big quantity of foam and has got a high biodegradability.

USE The quantity of use vary depending the phase of utilization and the type of leather required.

Biokimica s.p.a. Via A.Vespucci , 10

S.Croce S/Arno (Pi) Italy ph +39 0571 3631

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e-mail [email protected]

BIOFIX K04 Dyeing auxiliary

FEATURES - Clear liquid - Easily miscible with water - pH 1:10 solution approx. 5 - Anionic character

PROPERTIES BIOFIX K04 is a cationic agent used to improve water, perspiration and light fastness properties of the coloured leather, particular for garment and gloving leather. BIOFIX K04 improves affinity of anionic dyestuff with vegetable tanned leather or semichrome leather .The treatment of this kind of material with little quantity of BIOFIX K04 improves fullness and brilliancy of the colour, as well it's possible to obtain particular effect of staining using the product in a certain way.

USE To avoid precipitation with anionic products we advise to use BIOFIX K04 in new float. For further information on the matter, please contact our technical staff.



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BIOKAL B EXTRA CONC. Oxidizing agent

FEATURES - Yellowish liquid - Water soluble - pH in aqueous solution : alkaline - Active substance 30%

PROPERTIES BIOKAL B EXTRA CONC. is a strong bleaching agent that in acid condition develops gaseous chlorine dioxide with a strong oxidising action. For this reason BIOKAL B EXTRA CONC. must not be allowed to come in contact with strong acid in its undiluted state since this may cause the spontaneous evolution of gas which may ignite. BIOKAL B EXTRA CONC. is used for many purpose , mainly for bleaching, decolorization, descaling of reptile skins and rarely for oxidative unhairing. We advise to use the product only in drums equipped with fun - aspiration system , and anyway always with proper precaution.

USE Bleaching during pickling: 1-2% of BIOKAL B EXTRA CONC. allows to obtain a good white and pigment free pickled pelt advantageous for production of white tanning or for production of pastel shade colour. Usually it is added together with salt before the addition of acid followed by at least four hours of drumming.It is advisable to neutralised the excess of chlorine dioxide adding low percentage of sodium thiosulphate(test with potassium - iodide starch paper ). Biokimica s.p.a. Via A.Vespucci , 10


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BIOKAL G Auxiliary for tanning and retanning

FEATURES - White powder with low specific weight - pH 1:10 solution approx. 10 - Active substance 100% - Silicate of sodium and metal salt

PROPERTIES BIOKAL G thanks to its particular composition acts on tanning and retanning float improving the exhaustion of them from chrome salt, so advantages will occur ; - decreased quantity of chrome in waste water - improved firmness and finer grain - fuller leather All this advantages do not influence the colour if the wet-blue that appears light and without stains of basification. In retanning of suede, it improves buffing and gives brilliant and intense colour

USE To replace traditional basifying agent during tanning add BIOKAL G in the drum in powder form 0,5%-1%. Retanning of suede split add 1% of BIOKAL G after 30' of drumming with chrome retannage and then drumming for other 45'-60'. For further information on the matter, please contact our technical staff.



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BIOKAL LA Soap paste

FEATURES - White coloured homogeneous paste. - pH 1:10 solution approx. 8.5. - Anionic character.

PROPERTIES BIOKAL LA is a traditional soap paste derived from superior sulphonated fatty alcohols, finds application for any number of processes, both as a detergent and emulsifier, although it is particularly effective when added to fatliquor mixtures: which are thus given higher penetration, thereby giving a fresh and velvet feel to the leather. The product can also be used both for ``vacate type`` and sulphonated fatliquor mixtures in vegetable tanned leather.

USE 0.5 to 2% in any oil mixtures, for both chrome and vegetable tanned leather. For wetting back crust suede leathers: 0.5 to 1% on dry weight.



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BIOKAL RM Sequestering agent

FEATURES - Phosphates based product. - Partially hygroscopic white powder. - pH 1:10 solution approx. 7.

PROPERTIES BIOKAL RM is a phosphates based sequestering agent with a high molecular chain which allows the reduction of the water hardness also using a low quantity of BIOKAL RM. Owing to its sequestering properties BIOKAL RM helps water and chemical penetration through the skin fibre, therefore due to these properties is one of the most used products in the tannery. BIOKAL RM can be successfully used during soaking of raw skin, improving penetration of the water. BIOKAL RM used during neutralisation improves penetration of neutralising and retanning agents. BIOKAL RM improves solubility of anionic dyestuff. Unlike other products BIOKAL RM is not difficult to store, due to being only partially hygroscopic.

USE Percentage depend upon mode of use.



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BIOKAL SY Bating agent for acid environment

FEATURES - Mixture of enzymes and inert carrier - White powder slightly hygroscopic and high specific weight

PROPERTIES BIOKAL SY is an enzymatic product developed to be used in acid condition as bating agent mainly on skins, for example sheep skins and goatskins .The product can be used successfully also on wet-blue , but it is during pickling that BIOKAL SY gives the best result giving the following advantages: - opening up of the fibrous structure with increasing in yield - the leather will be softer - cleaner grain - elimination of folding due to the packing from the country of origin.

USE Percentages vary from 1% to 3% on shaved or pickled weight, during depickling or before retannage.



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BIOSINT K30 Bleaching agent for production of fur leather

FEATURES - Easy soluble in water white powder. - Characteristic smell - pH sol. 1:10 = 6.3

PROPERTIES BIOSINT K30 it is used for the bleaching of the leather with hair (shearling), it can be also used for the bleaching of dyed leather.

USE To bleach the hair it is usually used upon the soaking. For paddle the quantity varies from 2 to 5 g of product/lt of float. The medium time of this treatment is 4 hours ca., depending of kind of leathers.



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BIO-SYL Concentrated bating agent for acid environment

FEATURES - Mixture of various proteolytic enzymes obtained by industrial fermentation of micro-organisms combined with activating and inert carriers. - Thin white powder packed in sealed bags of 1 kg. each.

PROPERTIES For treating skins in acid environments (e.g. pickled skins, wet blue leather etc.), fungoproteases are obtained by growing certain micromoulds on appropriate media and then separating the mould enzymes. Optimum pH for activity is in an acid environment. These fungoproteases are also characterised by their stability in the presence of high temperatures (60°C.), where proteases of animal nature are absolutely inactive. Following results can be obtained by using BIO-SYL: - Elimination of areas where soaking, liming and bating procedures failed - Softening of leather, following hydrolization of interfibrillar substances, particularly for pigskins and splits as well as goat skins. - Levelling of chrome stains.

USE 0.5 to 3% on shaved weight, depending on type of skins and final leather required. Always process at pH levels 4 to 5 and temperatures from 30°C. up to 50-60°C.



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BIOTAN TD Auxiliary anionic dispersing agent

FEATURES - Thin heterogeneous powder, yellowish colour. - Water soluble in any proportion. - pH 1:10 solution approx. 7.5.

PROPERTIES BIOTAN TD is an excellent dispersing agent for dyeing, retanning and anionic fatliquors, that helps a perfect distribution on the whole surface and through the section of the leather. During retannage with either synthetic or vegetal tannins, as well as with anionic resins, it allows a penetration and distribution of these agents, thus increasing fullness, softness and elasticity of the grain. BIOTAN TD allows uniform distribution of anionic dyes, whose penetration and clearness are considerably enhanced, with the great advantages of clearness of the chromatic tone. Particularly clear and clean shades are obtained by using BIOTAN TD together with BIOTAN GNW before adding dye or together with dyestuff.

USE As a dye disperser: 1 to 4% on shaved weight ,or twice above dosage on dry weight. As a retanning auxiliary: 4 to 6% on shaved weight.



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DETAN KT Sequestering agent

FEATURES - Appearance: Odourless, yellow liquid - pH 1:10: 11.5

PROPERTIES Detan KT is used during "de-tanning" process of wet-blue leathers where, thanks to its decomplexing properties, it neutralises and stops the chromium removed from leather fibres, avoiding the fixing on the leather same. Particularly, it is used for vegetabled articles, for which a strong vegetal retanning is required, improving not only the appearance and the characteristics of the articles but also the physical properties thanks to the superficial preparation of the leather that becomes more suitable to above mentioned retannings.

USE Percentages of use of Detan KT vary from 2 to 3% upon a previous detanning treatment of the leather with oxalic acid or other strong acid. Usually it is added in the same float of detanning.E.g. 100% Water 40° 3% Oxalic acid 120' 2/3% Detan KT 60' Automatic over night morning, drain well, washing, follows retanning



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DETERPON SC/3 Softening soap

FEATURES - Transparent liquid. - Basis: sulphates of esterificated fatty alcohols - (laurilether sulphate ). - pH 1:10 solution approx.7.

PROPERTIES DETERPON SC/3 is an excellent detergent yielding soft, silky leather.DETERPON SC/3 is particularly suitable for furskins, either in soaking procedures ( 2-3 g/l ) or in fatliquoring, whose emulsion stability, distribution and penetration ( even during tanning ) are thus enhanced.

USE For soaking double-face lambskins: 2-3 g/l. In fatliquoring for furskins, during tanning: 20% of liquor weight in DETERPON SC/3. For fatliquoring of neutralised skin ( cattle sheep ): 1 to 3% on shaved weight.



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ECOTENS Degreasing agent with strong emulsifying action

FEATURES - Basis: ethoxilated alcohol. - high degreasing/emulsifying capacity. - Concentration: 100%. - Fully biodegradable in 15 days.

PROPERTIES This is a degreasing agent which can be used in a wide range of applications; thanks to its fundamental biodegradability and to its positive toxicological properties it can fully replace phenolic surfactant and/or solvent derived agents, which are commonly used in tanneries. ECOTENS has a degreasing capacity which is equal (in some cases, even superior) to that of above surfactants and is fully biodegradable (100%) in 15 days.

USE ECOTENS can be used ( as is the case with conventional non ionic degreasing agents) in soaking, liming, bating, soaking of shaved wet blue leather etc.



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ECOTENS NF Non foaming surfactant

FEATURES - Active substance: 40% - Non ionic character - Appearance: clear liquid - Colour: light violet - pH: 5.5/6.5

PROPERTIES ECOTENS NF is a special surfactant with a very low foaming properties and a good wetting and fats dispersing power. Thanks to its properties it is mostly used in processes with a strong mechanical action.

USE The use of this product is alternative or complementary to the use of other traditional soaking agents. - Soaking: 0.5-1% salted weight - Deliming: 0.5-1% pelt weight - Wet-blue: 0.5-0.8% shaved weight - Crust: 1-1.5% dry weight



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EGALISOL BZ Delaying auxiliary and dye levelling agent

FEATURES - Yellow slightly turbid liquid. - Chemical composition: amine oxyethylate and natural lipids. - Slight cationic charge. - Completely water soluble. - Stable at pH levels ranging from 1 to 12.

PROPERTIES EGALISOL BZ is a levelling agent particularly suitable for chrome tanned leather, as well as for mineral and synthetic tanned leather. The main feature of EGALISOL BZ lies in its being dye compatible, thereby forming compounds which separate while dyeing and enhance progressive dye penetration and levelling of shades, even in the case of multi-dye colouring.

USE 0.1 to 1.5 g/l of EGALISOL BZ, depending upon processing and dye percentages.



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NEUTROPEL C/7 Chrome tannage neutraliser

FEATURES - White powder of a high specific gravity. - pH 2:10 solution approx. 8.5. - Water soluble in any proportion.

PROPERTIES NEUTROPEL C/7 is a chrome tannage neutraliser suitable for any type of leather without any risk of over neutralisation (whose dangers are well known by tanners). NEUTROPEL C/7 is a product made of salts which, by combining with chromium salts unabsorbed by dermal structures, generate complex compounds which can be retained by the skin. This product allow the tanner to obtain uniform dyeing, fuller leather and finer grain. There is no danger of a surface de-tanning due to over alkalinization, which makes preliminary washing unnecessary: a considerable advantage over traditional neutralising agents. Buffer neutralising mixtures can be obtained by mixing with synthetic neutralising tannins such as BIOTAN CD and NEUTROPEL TS.

USE 1 to 3% depending on thickness, type of leather and final leather required; it may be used either alone or combined with other neutralising agents.



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NEUTROPEL CB Neutralising agent for soft leather

FEATURES - greyish powder - Deep neutralising action

PROPERTIES NEUTROPEL CB is a mixture of organic and derivative of naphtol, developed for the neutralisation of heavy and light leather for production of really soft articles like nappa , clothing etc. NEUTROPEL CB must always be used together with sodium bicarbonate or sodium formate; in this way we obtain neutralisation through the cross section without too high pH value .

USE Neutralisation of wet-blue for production of soft leather: 150% water 35°C 1,5 % NEUTROPEL CB 3% SODIUM BICARBONATE 2% SODIUM FORMATE RUN 2 hrs Final pH 5,8 and cross section blue with indicator. Biokimica s.p.a. Via A.Vespucci , 10


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NEUTROPEL CX/N Neutralizing anionic retanning agent

FEATURES - Thin, white powder. - pH 1:10 solution approx. 6.5. - Conc. 97/99%.

PROPERTIES NEUTROPEL CX/N is a synthetic retanning agent with a high neutralising capacity. Using NEUTROPEL CX/N alone or with other neutralising salt it is possible to obtain soft but still full and firm leather. NEUTROPEL CX/N is suitable for full and buffed grain leather and for all articles that require a firm grain. NEUTROPEL CX/N is light fast therefore it is recommended for white leather. NEUTROPEL CX/N gives even dyeing with anionic dyestuff.

USE Alone as neutralising agent: 2-3% on shaved weight. It can be used in combination with NEUTROPEL C/7 or other traditional neutralising salt. NEUTROPEL CX/N can be used during retanning with syntans or vegetable tannin agent ( 2 to 5% on shaved weight )



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NEUTROPEL K Buffered neutralising agent

FEATURES - Good light fastness - Active substances: >90% - pH sol. 1:10 = 7 - Appearance: clear, light powder

PROPERTIES Typical characteristics of NEUTROPEL K are the good neutralising action on chrome leathers and the very good padding effect together with a fairly good retanning and equalising action. For these reasons NEUTROPEL K has several possibilities of use: a) as neutralising agent on chrome leathers alone or combined with usually used traditional alkaline salts or our Neutropel C/7; b) as anionic dyestuffs dispersing agent or basic dyestuffs mordant; c) as anionic retanning agents (resins, syntans, etc...) dispersing agent to which ensure a better and firmer penetration inside the leather. It can be also used with success upon mineral retanning (chromium, aluminium, zirconium) to stabilise pH and to improve the exhaustion of the same. Used in retanning or in dyeing of velour skins it improves the softness and buffing properties.

USE Due to polyfunctionality of the product, percentages of use vary also a lot (1-5%) depending on needed use and final article. Our technical staff is at your disposal for any eventual formulation and explication on the matter.



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NEUTROPEL NTS Penetrating agent for anionic dyes

FEATURES - Thin whitish powder. - pH 1:10 solution approx. 8.

PROPERTIES NEUTROPEL NTS, thanks to its balanced formulation of weak alkaline substance, permits to obtain uniform and delicate neutralization on all kind of material. The product is used also during de.pikling, where is advisable to contain the chemical shock typical of this operation, so obtaining a grain more fine and full.




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NEUTROPEL SA/N Complete neutralising agent

FEATURES - Heterogeneous powder, brownish colour. - Water soluble in any proportion. - pH 1:10 solution approx.9. - Main components: synthetic materials and organic neutralising salts. - Concentration: 97-99%.

PROPERTIES NEUTROPEL SA is a complete neutralising agent for chrome tanned leather, allowing any number of articles to be obtained. In thick leather this product yields considerably fuller, firmer grain; furthermore, it provides well dye able surfaces without affecting the yield of the dyestuffs. NEUTROPEL SA completes our range of neutralising agents and can therefore be mixed with NEUTROPEL CX, NEUTROPEL C/7 and with BIOTAN CD.

USE 2 to 5% depending on leather thickness, type of leather and final leather required; it may be used either alone or combined with other neutralising agents.



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NEUTROPEL SW Penetrating agent for anionic dyes

FEATURES -.Thin yellowish granules. -.100% water soluble. -.Active materials: approx. 98%. - pH 1:10 solution approx. 7.3.

PROPERTIES This is a syntan derived from naphthalene-sulphonic acid, appropriately neutralised. It allows any anionic dye to easily penetrate throughout the skin thickness, with very little bleaching effect. NEUTROPEL SW is particularly suitable for leather requiring through dyeing, such as nubuk, heavy leather whose cutting edges remain visible, heavy splits, etc.

USE NEUTROPE SW can be used from 2 to 4% on shaved weight as dye penetrating agent, depending upon required shade. NEUTROPEL SW can also be used as a dispersing agent for anionic retanning agents.



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NEUTROPEL SW/N Penetrating agent for anionic dyes

FEATURES - Beige powder. - Active materials: approx. 98%. - pH 1:10 solution approx. 6,5.

PROPERTIES This is a syntan studied to gives a good dispersing effect for all kind of anionic retanning agent. NEUTROPEL SW/N is particularly suitable for leather requiring through dyeing, such as nubuck and heavy leather. Whit this product can obtain uniform dyed articles.

USE Percentage of use depending to the articles.



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NEUTROPEL TS Penetrating agent for anionic dyes

FEATURES - Thin yellowish powder. - 100% water soluble. - Active materials: approx. 98%. - pH 1:10 solution approx. 7.3.

PROPERTIES This is a syntan derived from naphthalene-sulphonic acid, appropriately neutralised. It allows any anionic dye to easily penetrate throughout the skin thickness, with very little bleaching effect. NEUTROPEL TS is particularly suitable for leather requiring through dyeing, such as nubuck, heavy leather whose cutting edges remain visible, heavy splits, etc.

USE 2 to 4% on shaved weight as dye penetrating agent, depending upon required shade. NEUTROPEL TS can also be used as a dispersing agent for anionic retanning agents.



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OVONUTREX Auxiliary for fatliquoring and degreasing

FEATURES - Viscous amber coloured liquid. - Water soluble. - pH 1:10 solution approx. 9.5. - Active materials: approx. 99%.

PROPERTIES OVONUTREX used as an auxiliary for fatliquoring increases softness of the leather. It provides finer and more stable emulsions with a better distribution of the oil within and on the surface of the leather. OVONUTREX is a powerful emulsifier, and can also be used as a dyeing auxiliary before adding dye: which will allow brighter, uniform dyeing to be achieved. This product is also an excellent wetting agent for crust leathers, the latter being rapidly wetted-back and prepared for subsequent dyeing, giving a good feel.

USE For oil mixtures: 0.5-1% on shaved weight. For wetting-back of all types of dry leather: 0.5-2% on dry weight. As a dyeing auxiliary: 0.5% either before or upon adding dye to the mixture.



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SUPRALEN BK 81 Dyeing auxiliary

FEATURES - Limpid liquid - Miscible in water - PH sol. 1:10=3,3 ca.

PROPERTIES The SUPRALEN BK 81 is used in order to improve the fixation of dyes and the resistance to the water, to the perspiration and to the light of coloured leathers, in particular for leathers used for clothes and glove factory. The SUPRALEN BK 81 improves the affinity of anionic dyes with the vegetable tanned leathers or chrome leathers giving full, bright and uniform colours.

USE The SUPRALEN BK 81 is used both before the second adding of dyes(Sandwich System) in order to obtain darker shades, and like fixing agent in order to improve the fixing and fastness of leather’s colours. The quantity of use suggested vary from 0,5% to 1,5% depending on the treated leather. For further information about that, our technician staff is always available.



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TERGEROL GA Degreasing agent based on solvent

FEATURES - Clear , fluid, straw coloured liquid with distinctive smell - Active substance 100% - Easy to be emulsified - pH 1:20 emulsion 8-9 - Flammability point 54°C

PROPERTIES It is a solvent derived degreasing agent enabling particularly effective degreasing even at very low temperatures, for limed or pickled skins with high percentages of natural fat like pig and sheepskins. TERGEROL GA is unaffected by hard water; its degreasing activity can occur even in low temperature bath, it enhances uniform distribution of natural greases throughout the skin and it never causes the grain drying, on the contrary the grain remains elastic and silky. TERGEROL GA is indicated for soaking of really greasy raw material also for wool on sheepskins production.

USE This product can be of valuable use in a number of processes, such as soaking, deliming and degreasing; dosages may range from 0.5 to 3% or more, and combination with other detergents may be advantageous. Extremely positive results were obtained by using TERGEROL GA combined with BIOKAL 100 for treating wet blue leather of exotic origins.



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BIOCID Biocide

FEATURES - Clear brown liquid - Base: phenol (free from p.c.p.) - pH sol. 1:10= 9.5 approx

PROPERTIES Biocid is a wide range biocide. It can be used both during soaking as bactericide or during tannage a antimould agent

USE During soaking, depending condition of the raw material and environment, from 0.1% to 0.15%.As antimould agent for tanned material, quantity varies depending time of storage and environment condition. We suggest the following: For chrome tanned pel 0.2-0.3% on pelt weight For vegetable tanned pelt 0.3.0.5% on pelt weight



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BIOCID 40 Bactericide

FEATURES - Basis: Sodium dimethyldithiocarbamate in solution - Yellow liquid with anionic charge - Concentration: 40%-42% - pH sol. 1%= 9-10

PROPERTIES Specific bactericide for soaking, BIOCID 40, if added correctly in floats, avoids the reproduction and the multiplication of decomposition bacteria and so the damages to the hide derived from the same.The necessary dosage depends to the preservation state of the skins, to the temperature and to the length of soaking process.

USE The indicative dosage changes from 0.05 to 0.1% on the weight of fresh hide. The product is used with success also in the finishing solutions, particularly if containing caseins and in the fatliquoring , specially when the used fatliquors contain natural oils as neatsfoot oil or fish oils.In the last case, percentages, varying from 0.05 to 0.1%, calculated on shaved weight, give results more than satisfactory. Also in the case of very fat hides it is suitable a previous degreasing with appropriate products because the natural fats facilitate the development of bacteria. Biokimica s.p.a. Via A.Vespucci , 10


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BIOKAL DM All-purpose deliming agent

FEATURE - Mixture of salts of non swelling complex active aliphatic carboxylic acids. - white homogeneous powder, fully water soluble. - pH 1:10 solution approx. 4.5.

PROPERTIES The active components in the mixture make BIOKAL DM a powerful deliming agent particularly suitable for full substance leather, with no risk of acid swellings which might jeopardise grain quality. BIOKAL DM eliminates interfibrillar lime as well as lime portion links to the proteinic structure of the hides or skins which is not obtainable with either weak acids or ammonia salts. BIOKAL DM delimed skins exhibit fine elastic and clean grain . The water released during deliming procedures eliminates all keratinous residuals, absence of which yields, during tanning a beautiful flat grain without creases

USE BIOKAL DM is quite easy to use, since it never yields empty leather or rough grain, even in high dosages. BIOKAL DM can be poured directly into the drum, though it is advisable to previously wash the skins with either small percentages of the product or ammonia sulphate



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BIOKAL KB Traditional enzymatic soaking agent

FEATURES - White powder. - pH 1:10 solution approx. 10.

PROPERTIES BIOKAL KB is a mixture of soaking enzymes and alkaline salts, devised so as to allow rapid soaking with traditional and simple procedures. BIOKAL KB allows excellent result to be obtained in a few hours both with fresh wet salted and with dry salted skins. Better soaking provides more open, less shrunken and cleaner leather.

USE BIOKAL KB is usually poured directly into the drum: enzymes are distributed and become active in a few minutes of rotation. Soaking time and recommended percentage of use can vary according to the final product, as well as to thickness it is always advisable for drum temperature not to rise over 26-28o C; pH levels should be set at 9.5-11 by means of either caustic or solvay soda. For further information on the matter, please contact our technical staff.



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BIOKAL LN Deliming agent at low developing of ammoniacal nitrogen

FEATURES - Mixture of organic acid and inorganic salts - pH sol. 1:10= 1.5 approx - Heterogeneous ivory powder

PROPERTIES BIOKAL LN is a new concept deliming agent that thanks to its special formulation allows to obtain deep deliming also on full substance heavy pelts .BIOKAL LN produces pelt with fine grain mantaining the fibrous structure of the pelt close and tight also on belly areas. BIOKAL LN develops low quantity of ammoniacal nitrogen therefore reducing the polluting charge

USE BIOKAL LN is quite easy to use, percentages of use and rotation time depend upon type, thickness and required article of the leather.



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BIOKAL MC Enzymatic bating agent

FEATURES - Heterogeneous, greyish powder. - Mixture of proteolytic enzymes, activating salts and inert carrier of organic origin.

PROPERTIES BIOKAL MC is a traditional, high-quality bating agent; it can be used for all types of hides and skins and yields an extremely fine and flexible grain. Excellent results are obtained following deliming by BIOKAL DM. Bating activity reaches its peak at pH levels of about 8 and at a temperature ranging from 34 to 37°C.

USE Using this product is quite easy with consistent results; recommended doses depend upon skin quality and final destination a brief outline is the following Calfskins 0,7/1 % Goatskins 1/1,5% Sheepskins 0,5% Buffalo 1% Heavy hides 0,5/0,7% Biokimica s.p.a. Via A.Vespucci , 10


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BIOKAL M/N Traditional enzymatic bating agent

FEATURES - Heterogeneous, greyish powder. - Mixture of proteolytic enzymes, activating salts and organic origin. - uLV/g = 1500

inert carrier of

PROPERTIES Biokal M/N is a traditional high-quality bating agent; it can be used for all types of hides and skins and yields an extremely fine and flexible grain. Excellent results are obtained let following deliming by Biokal DM. Bating activity reaches its peak at pH levels of about 8 and a temperature ranging from 34°C to 37°C.

USE The use of this product is quite easy with absolute constant results: recommended doses are half of that used with our BIOKAL MC and they also depend upon skin quality and final destination.



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BIOKAL S Odourless deliming agent

FEATURES - Mixture of dicarboxylic acids and inorganic salts in combination with organic substances. - White powder, thoroughly water soluble. - pH 1:10 solution approx. 4.

PROPERTIES BIOKAL S removes all lime residuals absorbed by skin structure, as well as those linked to the proteic components in the fibrils, without in the least affecting collagen integrity. During deliming with BIOKAL S of limed hides and skins, liberation of water permits keratinous and interfibrillar residuals to become soluble: subsequent tanning and retanning procedures will therefore yield smooth, even skins. A particular advantage with BIOKAL S is that no bad smelling vapours accompany either deliming or the operations related to emptying and washing the drum after such procedures. BIOKAL S prevents the acid swelling which is so dangerous for the grain.

USE BIOKAL S is quite easy to use: percentages of use and rotation time depend upon type, thickness and required article of the leather.



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BIOKAL STA Liming auxiliary

FEATURES - Aqueous solution of amine and alkaline substances - Transparent fluid with a slightly acrid smell - pH 1:10 solution approx. 12.5

PROPERTIES BIOKAL STA is a liming auxiliary that when is used during liming enhance the action of the alkaline substance obtaining an easier penetration of lime throughout the fibrous structure of the pelt and cleaner grain and follicles thanks to the action of the amines on the keratinous and collagen protein. As well BIOKAL STA produces pelt with a more relaxed structure and therefore improves the wrinkles and sometimes the yield of the final products. Low quantities of BIOKAL STA ( 0.3% - 0.5% ) during soaking improve this operation and prepare the pelt to the next operation of liming, improving grain clearness and opening up.

USE At the beginning of liming procedures 0.5% - 1% in drums or 0.8 - 1.5% in paddles. When used during soaking ( traditional or enzymatic soaking) 0.3%-0.8% depending if soaking is carried on in drums or paddles. For further information on the matter , please contact our technical staff.



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BIOKAL STR Liming auxiliary

FEATURES - Aqueous solution of amines and alkaline substances. - transparent fluid, acrid smelling . - pH 1:10 solution approx. 12.5.

PROPERTIES BIOKAL STR's particular composition allows on liming a fast penetration of alkaline substances into the structure of soaked skins, thereby enhancing the action of sulphide, lime and enzymes on the proteic structure of both collagen and interfibrillar substances. The highly alkaline levels of liming bath stimulates the action of BIOKAL STR. Amines and alkaline salts (both components of the BIOKAL STR) are long known to be the basic compounds of a high reactivity with sulphur bridges of the collagen, which are, in their turn, fundamental for all chemical reaction occurring with liming - or rather, with skin alkalinization.

USE For all liming procedures : 0.5-1%. Unlike similar products, adding a small percentage (0.3-0.5%) of BIOKAL STR to soaking baths allows cleaner, perfectly stretched skins to be obtained. For further information on the matter, please contact our technical staff.



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BIOSINT CR Accelerator agent for soaking of raw hides

FEATURES - Limpid, colourless, odourless liquid. - pH 1:10 solution approx. 11-12. - Mixture of inorganic and organic salt in alkaline solution.

PROPERTIES BIOSINT CR is a particular soaking agent for dry and wet salted skins/hides. The soaking action of BIOSINT CR is enhanced by adding RINAZYM during enzymatic soaking within 3/4 hours. Furthermore the product can be used alone during traditional soaking owing to its high wetting ability

USE After desalination 0.5-1% of BIOSINT CR together with other wetting agent. For further information on the matter, please contact our technical staff.



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BIOSINT F Liquid deliming agent

FEATURES - Basis: organic acids and masking substances. - Limpid, transparent liquid of a typical acrid odour. - pH 1:10 solution approx.4.

PROPERTIES BIOSINT F is deliming agent with an excellent buffing property. It acts softly on the limed skins, avoiding dangerous acid swelling; which may sometimes occur at this point in the tanning process when using deliming agents that contain inorganic acid, severely jeopardising leather quality. BIOSINT F delimed skins are characterised by their full leather and softer, finer grain which is particularly appreciated in full-grain box calf.

USE Dosages may vary according to processing, raw material and final leather. Percentage of use commonly ranges from 1 to 1,5% for hides and from 0,5 to 1% for skins.



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BIOSINT TR/CONC. Concentrated enzymatic bating agent

FEATURES - Heterogeneous powder of a light colour. - Mixture of proteolytic enzymes, activating salts and inert carrier substances. - Packed in plastic bags of 1 Kg. each, in 15 Kg. boxes.

PROPERTIES BIOSINT TR/Conc., can be used for the bating of all kinds of pelt. It is active at a temperature of 32-34oC on delimed pelt, thereby eliminating superfluous substances which might jeopardise the skin or hide during following tanning procedures. Thanks to its particular packing BIOSINT TR/Conc. performs better than traditional bating agents, since contamination by room air and humidity is limited to a small portion of the product: this allows uniform and constant bating results.

USE BIOSINT TR/Conc. can be poured directly into the drum without previous dissolving or through the axes. BIOSINT TR/Conc if kept in a dry place can be preserved for a long time; it is totally biodegradable and its use does not require any particular precaution. calfskins 0,07/0,11 % goatskins 0,1/0,15% sheepskins 0,05% heavy hides 0,05/0,07% Biokimica s.p.a. Via A.Vespucci , 10


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DEPILZYM/E Unhairing enzyme

FEATURES - Blend of suitable enzymes ables to attack the keratin - pH sol. 1:10 = 7 - Appearance: white powder at high specific weight

PROPERTIES DEPILZYM/E has been studied for long time in our laboratories, the enzymes that compound this product are suitable to attack the keratin of hair follicles and so this product gets an unhairing action. Using DEPILZYM/E it is possible to obtain unhairings with a minimum use of sodium sulphide or sulphidrate allowing a remarkable improvement under the ecological aspect. DEPILZYM/E is recommended particularly as coadjuvant of sulphide in traditional liming operations and improving considerably grain clearness. Of course the percentages of used unhairing chemicals are drastically reduced with a consequently reduction of polluting charge in waste floats.

USE In drum or paddle: 0.2 0.4% on fresh salted weight added in float at pH 12 plus. To obtain the maximum effect in liming with hair recover, after immunisation with lime, it can be added together with or after the sulphide/sulphidrate. Of course the use of DEPILZYM/E allows the reduction of used percentages of sodium sulphide or sulphidrate.



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ECOVIT 03 Enymatic soaking agent with pH activator

FEATURES - Very fine yellow powder - pH sol. 1:10 approx. 11

PROPERTIES ECOVIT 03 is a mixture of soaking enzymes and alkaline salts that allows to obtain a buffered pH of the soaking bath at around 9,5/10. ECOVIT 03 allows to obtain a excellent and uniform soaking both with fresh wet salted and dry salted skins. Better soaking provides more open , less shrunken and cleaner leather

USE ECOVIT 03 is usually poured directly into the drum: enzymes are distributed and become active in few minutes of rotation. Soaking time and recommended percentage of use can vary according to the final product, as well as to thickness. It is always advisable for drum temperature not to rise over 26-28°C. For further information on the matter, please contact our technical staff.



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ECOVIT 90 Special soaking agent

FEATURES - Very fine yellow powder - pH sol. 1:10 approx. 11 - Proteases bacteria and active substances

PROPERTIES Easy to use product with which it is possible to obtain a quick and sure soaking on all types of skins and hides. The component of ECOVIT 90 speeds up the process of soaking improving the quality of the final result. 1) Enzymatic activity that favours idrolisation of the non structured protein of the skin, therefore there is a better and quicker diffusion of water into the skin itself. 2) Reduction of the water surface tension due to the special wetting agent present. 3) Buffing of the pH until 9 favours enzyme activity and the soaking process in general. This pH value stabilises throughout the process, without therefore creating imbalances with consequences of undesirable swelling. At the end of the treatment the skins are soft, with the flesh soft and completely separated from the skin. The pH of the bath is uniform as are the skins even in cross section.

USE On shoulder or heavy bovine, after a good washing, use percentages varying from 0.9% to 1.2% in short bath (60%) at a temperature of 28°C. alone or with the addition of a surfactant agent. Generally a good soaking is obtained after 3 hours. It is possible to prolong the action especially during cold seasons



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ECOVIT SG Liming auxiliary

FEATURES - Solution of alkaline and organic substances. - Clear, practically odourless liquid. - pH 1:10 solution approx. 10.5.

PROPERTIES During liming the composition of ECOVIT SG allows a quick penetration of the alkaline chemicals into the fibre structure, improving the action of sodium sulphide and lime on the collagen protein structure. ECOVIT SG increases the break of the sulphur bridge helping depilation. ECOVIT SG gives a cleaner pelt.

USE During liming: 0.5-1% of ECOVIT SG together with lime and sulphur. Unlike dimenthylamines products, there are no particular precaution to be taken with this product, as it is nor toxic or harmful. .



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ECOVIT SG/K Liming auxiliary

FEATURES - Alkaline amine with organic and inorganic alkaline. chemical substances. - Clear, colourless, slightly dense liquid. - Practically odourless. - pH 1:10 solution approx. 13.5

PROPERTIES As a result of studies carried out on the antiwrinkle properties of alkaline amine on the skin (used during liming) ECOVIT SG/K was developed. In comparison to ECOVIT SG, ECOVIT SG/K gives a better penetration of lime into the fibre structure and a cleaner skin grain.

USE During liming: 0.5-1% together with lime and sodium sulphide. Unlike other dimenthylamine based products ECOVIT SG/K is not harmful or toxic. However it is advisable to take the normal precaution when using.



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ECOVIT SG/M Liming auxiliary

FEATURES - Mixture of compound with reducing effects. - pH 1:10 solution = 13-14 - Slightly yellow liquid.

PROPERTIES ECOVIT SG/M is a new concept liming auxiliary that improves the cleaning of the grain (scudding ) and the removal of the hair root and follicle also on hides and skins particularly difficult. As well ECOVIT SG/M allows to obtain flat pelt with open and relaxed wrinkles. ECOVIT SG/M gives perfect result also when liming process is done in paddles. ECOVIT SG/M can be successfully used on hair saving type liming , improving at the same time the quality of the leather and integrity of the hair. ECOVIT SG/M is sodium sulphide free.

USE For hair saving liming After good soaking with RINAZYM or BIOKAL KB Add. 0,5 - 1,5% ECOVIT SG/M Add. 1%LIME run 40` Add 0,7-1,2% sodium sulphide or soium hydrosulphide run 30-40` Check hair removing. At this point it is possible to recover the hairs and then add the remaining lime and sodium sulphide necessary to obtain the required liming. For further information on the matter please contact our technical staff. Biokimica s.p.a. Via A.Vespucci , 10


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ECOVIT SH Liming auxiliary

FEATURES - Reducing effect chemicals agents based liming auxiliary - pH 9/9.5 - Low viscosity liquid with pungent smell

PROPERTIES ECOVIT SH helps leather unhairing, improves the clearness of grain surface eliminating completely the epidermis, avoids an excessive swelling of pelts with consequent improvement of yield. By using ECOVIT SH the utilisation of common unhairing agents as sodium sulphate and sodium sulphidrate is strongly reduced.

USE To improve the quality of leather for traditional liming it is usually enough 0.3/0.5%. For low quantity of sulphate liming or based on hair recovery liming it is usually used a quantity from 0.7 to 1.2%.



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LIPOZYM Enzymatic degreasing agent

FEATURES - Hygroscopic powder - Enzymes and activating supports - Packing: vacuum waterproof bags hermetically closed, 1 kg each. - Range of activity: from pH 6 to pH 12 - Favourable temperature: 35/40°C

PROPERTIES LYPOZYM is really a degreasing agent, its properties derived from a particular lipase, that is an enzyme, able to hydrolyse natural fats (triglycerides) of leathers and to turn them into easily water soluble products (monoglycerides, glycerol, etc.,). in this way, by adding common surfactants it is possible to obtain strong degreasing actions also on particularly fat leathers as pigs, sheeps, Australian hides, Paker hides, etc. This characteristic concretely gives: - improvement of final quality of leathers; - improvement of waste floats, thanks to the reduction of 1/10 the quantity of used surfactants and to the elimination of the necessity to use solvents. The product has been long time tested both from us and from specialised laboratories and we can absolutely guarantee the selective property of this enzyme which attacks only natural fats and never collagen proteins or other substances that may cause damage to leathers.

USE LYPOZYM is generally used during deliming followed by a small percentage of surfactant added in the same float of the following bating. Percentages of use vary from 0.1 to 0.3%. LYPOZYM can be used also during soaking. Our technical staff is at your disposal for any eventual explication or suggestion about use.



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RINAZYM Concentrated enzymatic soaking agent

FEATURES - Mixture composed of micro-organism derived enzymes, activator and inert substances, both organic and inorganic. - RINAZYM is active in a pH range of 6 to 10 and is progressively neutralised by adding lime and sodium sulphide

PROPERTIES RINAZYM acts specifically on the organic substances within the skin, thus accelerating soaking and liming procedures: in fact, its use results in a considerable reduction in the time normally required for such operations, without in the least jeopardising the quality of tanned skins. Coupled with the BIOSINT CR it allows ( under particular conditions) rapid soaking of dry and wet salted hides and skins even in the case of different weight ranges. RINAZYM markedly affects natural fatty substances of the hides and skins, whose solubilisation appears to occur more rapidly.

USE RINAZYM can be used both in traditional and in rapid soaking procedures. For further information on the matter, please contact our technical staff.



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TERGEROL 510 Liming auxiliary detergent and wetting agent

FEATURES - Mixture of anionic and non ionic surfactant agent. - Colourless, clear, limpid fluid. - Characteristic odour. - High stability to hard water, salts and chemicals present in liming. - Readily soluble in all proportion in water. - pH 1:10 solution approx. 6.7.

PROPERTIES TERGEROL 510 helps penetration through out the skin section of the liming chemical, yielding pelts with a finer, cleaner grain. It helps depilation ensuring a rapid relaxation of the skin's fibre.

USE It is advisable to use TERGEROL 510 with BIOSINT CR during soaking, our experience shows good result with these chemicals. Recommended quantity 0.3-0.5% TERGEROL 510 plus 0.6-0.4% BIOSINT CR. For further information on the matter please contact our technical staff.



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ANTISTATIC AGENTE 575/C0 Auxiliary for antistatic fatliquoring

FEATURES - Soft paste below 25° C. fluid over 25° C. - Colour: amber-brown. - pH 1:10 solution approx. 9.5. - Readily soluble both in water and in most solvents.

PROPERTIES Using this product as a fatliquoring auxiliary has a number of advantages: it prevents fatty spue occurrence; it adjusts leather humidity rate; it prevents static electricity formation following friction. ANTISTATIC AGENT 575/CO can also be applied by padding or spray diluted in ethanol, on leather exhibiting fatty spue.

USE To be mixed with commonly available oils in a percentage ranging from 1 to 3% or more, thereby reducing the quantity of another oil in the mixture by the same amount. For fatty spue treatment: 1:5-1:10 solution in ethanol applied by padding on affected leathers.



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BIOPULL UP BK NEW Special wax for pull up effect in drum

FEATURES - yellow paste - Active t substances: 99%

PROPERTIES The particular composition of BIO PULL-UP BK NEW allows to easily obtain directly in the drum all those pull-up effect otherwise made only during the finishing phase. The leather treated with BIO PULL-UP BK NEW have a good burning effect and a good reactivity to the mechanical action.

USE BIO PULL_UP BK NEW is usually added at the end of the main fatliquor after emulsifying in hot water. For particular article, BIO PULL_UP BK NEW can be used as the main fatliquor or alone.



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BIOTAN A Sulphochlorinated paraffin

FEATURES - Stable oil, insoluble, yellowish colour - Indicated for oil tanning

PROPERTIES BIOTAN A can be used as tanning agent during the oil tannage together with fish oil. The product has got emulsifying properties on natural fats therefore degreasing can be avoided for hides or skins not particularly greasy, as well BIOTAN A prevents fatty spue that can appear on not properly degreased leather or where fat-liquoring has been done using fatliquors not suitable .BIOTAN A can also be used to improve tear resistance due to the affinity of the product with the fibre of the leather.

USE Oil tannage : After a pickle to pH 3,5 , pretanning with 1,5% of BIOTAN GL for about 90' then basify to pH 7/8 with calcium or sodium formate , sammying, shaving and then tanning with8% BIOTAN A + 8% FISH OIL Drum 2 hours , drying and degreasing as usual. To improve the tear resistance of chrome tanned hides or skins 1-2% BIOTAN A with 1-2% BIOXOIL BXR together with chrome run 90' and then carry on retannage as usual. Preventing fatty spue: 1% BIOTAN A emulsionated together with other oils. Biokimica s.p.a. Via A.Vespucci , 10


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BIOXOIL 108 Valuable sulphited oil

FEATURES - Limpid liquid oil, light brown colour. - Anionic character. - pH 1:10 solution approx. 6.5. - Active materials approx. 65%. - SO3 contents approx. 4%.

PROPERTIES BIOXOIL 108 is produced by sulphitation of both natural and synthetic oils and it is particularly suitable for fatliquoring of full chrome retanned leather and for vegetable retanned leather. BIOXOIL 108 gives leather with an even dyeing, soft and dry handle. Its formulation allows a thorough penetration, therefore it can be used for the production of nappa. It is also used for the production of white leather thanks to its good light fastness properties.

USE BIOXOIL 108 may be used either alone or combined with other sulphonated and/or natural oils to fatliquors hides, sheepskins, kid (for shoes and leather goods);dosages 2-8% depending upon the leather.



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BIOXOIL 150 Special synthetic fatliquor

FEATURES - Basis; phosphoric esters, and special emulsifiers. - Suitable for nappa clothing and soft furniture. - Excellent light fastness. - Anionic character. - pH 1:10 solution approx. 6. - Active fatty substances approx. 60%.

PROPERTIES BIOXOIL 150 fatliquor penetrates deep and uniformly into the fibres, fixating itself to the interfibrillar leather structure and in spite of this gives the leather a silky feel instead of being dry. It gives leather with low specific weight

USE To be used either alone or combined with whole oils or with other anionic fatliquors, according to the required leather



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BIOXOIL A/93 Special oil for furskin production

FEATURES - Synthetic sperm oil. - Anionic character. - Clear amber coloured oil. - Active materials: 70%. - Sulphonation degree: 1-1.2% of SO3 combined. - pH 1:10 solution approx.7

PROPERTIES BIOXOIL A/93 is a sulphonated synthetic sperm oil with surfactant agents. It is very stable against chrome, mineral salts and low pH environments. These properties make BIOXOIL A/93 recommended for use during the tanning of furskins (e.g. “double face”). BIOXOIL A/93 gives the skins a greater softness when compared to fatliquors containing completely synthetic paraffin sulphochloride. BIOXOIL A/93 also leaves the fur grease free.

USE BIOXOIL A/93 is used during chrome tanning together with BIOXOIL BXZ thus increasing BIOXOIL A/93 penetrating capacity.It is advisable to use DETERPON SC/3 together with BIOXOIL A/93 and BIOXOIL BXZ to increase the stability of the emulsion in a long float.



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BIOXOIL A/100 Sulphited degras derived fatliquor

FEATURES - Dark brown coloured fluid paste. - Anionic character. - pH 1:10 solution approx.7. - Active substance: 70%

PROPERTIES BIOXOIL A/100 is a oil developed to meet particular requirements. The degras used for its composition is totally inoxidizable and gives, apart from great softness and exceptional fullness, also a particular feel typical for this chemical. Used on vegetable or mix tan leather, it contributes enormously to darken the hue when brushing in the shoe factory. Though a mainly natural oil, BIOXOIL A/100 is quite light fast and very stable at low pH levels and vegetable tanning bath and electrolytes.

USE BIOXOIL A/100 is usually utilized together with other oils in percentage varying upon the final article required



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BIOXOIL BS Synthetic sulphonated fatliquor

FEATURES - Red-brown coloured limpid liquid. - Anionic character. - pH 1:10 solution approx. 6.6. - Active substance: 74%

PROPERTIES High quality oil particularly suitable for suede, glazed leather, nubuck etc. BIOXOIL BS is a synthetic oil whose composition gives soft leather without altering the firmness of the grain. Suedes and nubuck take on brightness and a silky dry feel which is particularly appreciated. Thanks to its basic components it does not dull bright colours, on the contrary colours are accentuated. Furthermore, BIOXOIL BS processed leathers can easily be buffed.

USE To be combined with any other sulphonated/sulphited oils for high quality leather.



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BIOXOIL BXR Sulphited special oil

FEATURES - Fish oil oxidised with special treatment and sulphited, with special softening and emulsifying agent - Dense oil of brown colour, viscous with distinctive smell - Active substance 80% - Combined SO3 2.1-2.3% - pH 1:10 emulsion 6.8-7.2 - Emulsion stable to acids and electrolytes

PROPERTIES Thanks to its particular composition BIOXOIL BXR gives to the leather an extraordinary softness , the best of all our sulphited fat liquor. It is able to penetrate well and to fixate to the fibre very strongly, it is compatible with all non ionic and ionic fat liquor , it is a good emulsifier of raw oils. BIOXOIL BXR can be utilised without problem on tanning procedures both for chrome and for vegetable tannage and of course during retannage. When used during retannage improves the tear strength.

USE It can be utilised when softness is required with leather that does not necessitate light fastness.



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BIOXOIL BXZ Synthetic oil for furskins

FEATURES - Sulphochloride based with surfactant stabiliser. - Anionic character. - Straw coloured, clear oil. - Sulphonation degree: 2.5% SO3 combined.

PROPERTIES Completely stable in the most severe conditions (tanning and acid conditions ). BIOXOIL BXZ is not oxidizable and therefore is suitable for the production of white leather. BIOXOIL BXZ is an oil particularly recommended for the production of suede ``double face `` leather, giving a very dry hand. BIOXOIL BXZ is also recommended for furskin production as it leaves the hair or wool completely grease free, owing to the surfactant content that has a detergent action on both flesh and fur sides of the skin.

USE It is important to emulsify the product with water at 40° C. Because at higher temperatures the products ability to emulsify will decrease.



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BIOXOIL C/I Sulphited, highly concentrated fatliquor

FEATURES - Dark brown coloured viscous liquid. - Anionic character. - pH 1:10 solution approx. 6.7. - Active material: approx. 90%.

PROPERTIES BIOXOIL C/I is a highly concentrated fatliquor mainly derived from valuable fish oils, oxidised and sulphited. It is used whenever extremely soft leather is required. Its particular sulphitation allows a thorough penetration, even in the case of skins either partially neutralised or still retaining lime residuals. BIOXOIL C/I forms very fine emulsion which is stable to both electrolytes, acids and alkalis. It can easily emulsify raw oils up to 50% of its own weight.

USE BIOXOIL C/I is particularly suitable for all those articles that require great softness, like softy leather, nappa, gloving etc. Using BIOXOIL C/I in retannage improves tear resistance; the product should be used in a percentage ranging from 2 to 10% according to required softness of leather.



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BIOXOIL ET Cationic fatliquor

FEATURES - White paste. - Fine, persistent emulsion. - Slightly cationic charge. - pH 1:10 solution approx. 3.5-4.

PROPERTIES Softening fatliquor derived from synthetic fats of slightly cationic nature. The latter characteristic allows combination of the product with anionic agents, since its emulsion is quite stable even in anionic environments. BIOXOIL ET cannot be oxidised and can therefore be used for white leather and pastel shades. BIOXOIL ET markedly increases the tensile strength of leather, as well as resistance to grain cracking, it can be used ( as is the case with all cationic agents ) both in tanning and in retanning procedures in the presence of chrome salts or other mineral tanning agents.

USE In tanning: 0.3-0.5% on limed weight, to increase tensile strength of the leather. In retanning used together with chrome: 0.5-1% on shaved weight. To replace neatsfoot oil in mixtures composed of sulphonated or sulphited oils ( multicharge fatliquoring ). For surface fatliquoring: to be used either as it is or combined with raw oils-in case thorough lubrication of leather surface is required.



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BIOXOIL G4 Lecithin derived fatliquor

FEATURES - Slightly anionic fatliquor derived from natural lipid phosphates. - Brown coloured viscous paste. - Active materials: 60% ca.. - Excellent light fastness.

PROPERTIES BIOXOIL G4 exhibits high affinity with skin fibres, due to its chemical composition. BIOXOIL G4 has an average penetration capacity, and for this reason it gives to the finished leather an excellent feel. However penetration can be enhanced by adding such high penetration agents as sulphited oils (BIOXOIL C/I ) or synthetic, phosphorated fatliquors ( NUTREXOL 150 ). BIOXOIL G4 makes leather both softer and fuller, with a silky feel which is extremely appreciate. No fatty spue phenomena is possible.

USE BIOXOIL G4 can be used alone, especially for clothing from sheepskins, it can also be used as a final fatliquor for chrome tanned leather, thereby giving a silky feel to the skin.



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BIOXOIL G/22 Semisynthetic sulphited fatliquor

FEATURES - Active substance 75% - pH 1:10 emulsion 7 - Anionic charge - Good light fastness - Good stability to electrolytes

PROPERTIES BIOXOIL G/22 is a blend of natural and synthetic sulphited oils that gives soft and full leather. It can be used successfully both on chrome or on chrome -vegetable/syntan . Thanks to its solidity to light it can be used on white or pastel colour leather production.

USE Alone or blended with sulphonated, sulphited or raw oils.



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BIOXOIL TX Anionic fatliquor for nappa and all soft leathers

FEATURES - Dark brown colour - Base: pre-treated in specific way natural sulphited oil - Active substance: 87% - Light fastness: good - Stability: very good to acids and hard water

PROPERTIES The use of BIOXOIL TX is suggested for all kind of soft leather: nappa, softy aniline, box, velour, up-holstery. If used for aniline full grain leather, BIOXOIL TX imparts an agreeable feel without prejudice the anchorage of finishing. Of particular importance its deep and very good penetration that makes sure the fatliquoring also with no favourable conditions.

USE Add slowly under stirring to the required quantity of fatliquor a 300% in water weight at 60°C.



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BIOXOIL TZ Natural sulphited oil

FEATURES - Anionic charge - Active substances: approx. 85-88% - Clear caramel colour - Characteristic sulphited smell; odourless when the leather is dry - Good light fastness (4-5) - Stable milky solution - pH 1:10 solution approx.: 5.5-6

PROPERTIES BIOXOIL TZ is an oxidised, sulphited fish oil, deeper fatliquor; stable to electrolytes. Thanks to its particular sulphitation (SO3 combined 3-4) it penetrates deeply in section also on perfectly neutralised leathers or with residuals of lime.

USE BIOXOIL TZ can be used both during retanning with presence of mineral salts or other retanning agents and combined with sulphonateds to modify softness in leathers for shoes. It is possible to prepare blends with anionic fatliquors to be used for nappa or very greased leathers and/or for upholstery.BIOXOIL TZ is suitable also for pastel colours because it gives very dried and bleached surfaces.



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HOUGHTOSINT K10 Tear strencgth improving fatliquor

FEATURES - Paste of brown colour -.Anionic character stable to electrolytes and hard water - pH 1:10 solution : approx. 6,5 - Active substance: 70%

PROPERTIES HOUGHOSINT K10 is a mixture of animal and synthetic oils developed to improve the tear strength of both chrome and vegetable leather. Its great stability allows to used it on different phase of the process like during deliming as slipping agent to avoid grain abrasion or during veg or chrome retannage as lubricating agent to improve physical resistance of the grain.

USE The best use of HOUGHTOSINT K10 is together our BIOKAL RM just after wetting back of the wet blue stock, then proceed with the normal retanning procedure. In vegetable retannage is better to use it together with the syntan before the addition of the vegetable extracts. In deliming must be added , after the first wash, together with the deliming agent. For further information on the matter , please contact our technical staff.



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HOUGHTOSINT S Fat liquor for sole leather

FEATURES - Anionic character - Appearance: Clear limpid amber liquid - Active substance: approx. 70% - Very good light fastness

PROPERTIES Sulphonated oil basis natural triglycerides and synthesis additives. HOUGHTOSINT S is a sulphonated with particular characteristics properly studied for production of sole-leather with well closed fibres and uniform colour also after buffing. HOUGHTOSINT S has an homogeneous penetration "under grain" also at very low pH. Thanks to its particular formulation this product avoids the danger of formation of dark halos as often happen with the use of traditional fatliquors.

USE In retanning at 38-45°C, 2%-2.5%.



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KATIOXOIL Aliphatic amide ester based cationic fatliquor

FEATURES - Bluish coloured liquid. - Cationic character. - pH 1:10 solution approx.4. - Active substance: 15%

PROPERTIES This is a light-fast, cationic fatliquor which can be safely combined with any cationic product ( e.g. chromium, zirconium, aluminium salts etc. ).

USE KATIOXOIL can be used in a large number of tanning operations, such as chrome retanning and final feel. It can also be used for spraying finishing giving a greasy feel to the leather.



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LIKERSOL15 Fatiquor for soft article

FEATURES - Fluid oil of orange colour - Based on natural and sulphitated synthetic oils - 68% active substance - pH 1:10 solution approx. 6.5 - Good light fastness

PROPERTIES Fatliquor compound at high penetration, it imparts good softness without increasing the specific weight of the final leather. It can be used either alone or together with other anionic fatliquors to produce all kind of soft leathers as clothing leather, upholstery, softy nappa, etc.

USE Emulsify fatliquor with 300% water at 60°C.



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LIKERSOL AKU/N Synthetic fatliquort

FEATURES - Appearance: Viscous Yellowish Oil - pH 1:10: approx 6 - Active substance: approx 60% - Good lightfastness

PROPERTIES LIKERSOL AKU/N imparts to leather an extremely softness and lightness. Thanks to its chemical composition this oil may be used for all kind of garment article on different raw hides. LIKERSOL AKU/N gives a particular silky and smooth touch.

USE LIKERSOL AKU/N may be used alone or mixed with other anionic fatliquor or raw oils. Percentage may be changed from 4 to 10, depending on required articles.



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LIKERSOL FT Sulphited fatliquor for automotive leather

FEATURES - Appearance: brown liquid. - Base : mixture of natural and synthetic sulphited oils - Active materials: approx. 65-67% - pH.: 6,9.

PROPERTIES LIKERSOL FT is particularly suitable for fatliquring when excellent results to fogging test and a good softness are required. LIKERSOL FT can be used both after emulsifying and directly in the float.

USE Percentages of use may change according to treated leather and needed article. However our technical staff is at your disposal for any eventual suggestion.



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LIKERSOL GLH Special oil for clothing and furskin leather

FEATURES - Synthetic oil with softener emulsifier. - Anionic character. - White paste. - Active materials: 52%. - SO3 combined: approx. 0.8-1.2%. - pH 1:10 solution approx.7. - Completely inoxidizable.

PROPERTIES Fatliquor with a high penetration capacity. Its emulsion is stable in the acid bath and against salts. LIKERSOL GLH gives a light leather therefore is recommended for the production of clothing leather.

USE LIKERSOL GLH has to be emulsified with water at 45-50°C. before use. LIKERSOL GLH is usually used during tanning or retanning operations. however trials show that LIKERSOL GLH can be mixed with anionic fatliquor and virgin oil giving good results. LIKERSOL GLH can easily emulsify raw oils up to double its weight.



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LIKERSOL GM Sulphonated neatsfoot oil

FEATURES - Sulphonated glycerides with a synthetic additive. - Active material 75%. - pH 1:10 solution approx.6-7.

PROPERTIES LIKERSOL GM gives a very full, soft leather, with an extraordinary lubrication of the fibre.

USE Due to its chemical stability ( no oxidation occurs ) LIKERSOL GM is particularly recommended for production of white and pastel coloured leather.



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LIKERSOL HG Softening agent

FEATURES - Appearance: white paste - pH sol. 1:10 = approx. 4 - cationic character

PROPERTIES LIKERSOL Hg is a product derived from the condensation of fatty acids that impart to the leather softness




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LIKERSOL IBS Special fatiquor for soft article

FEATURES - Appearance: light coloured yellow liquid - pH sol. 1:10 = 7 - Very good light fastness

PROPERTIES LIKERSOL IBS is a fatliquor developed for the production of soft leather, for this reason it is applied particularly on sheepskins. LIKERSOL IBS gives good fullness, softness and lightness, with a dry and silky hand. Thank to the full synthetic composition, LIKERSOL IBS can be used also for production of fur leather, and due to the excellent light fastness can be used also for pastel shade colour.

USE The quantity of use vary depending the phase of utilization and the type of leather.



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LIKERSOL K6 Fat liquor for soft article

FEATURES - appearance: red/brown coloured oil - Base: sulphited natural oils - active substance: 68/72% - good stability to the tanning/retanning float

PROPERTIES LIKERSOL K6 is a fat liquor with pronounced penetration and good stability to the electrolytes and the chrome retanning float. LIKERSOL K6 gives an excellent softness and keep the leather light, with a fresh and silky touch. LIKERSOL K& can be used as a pre-fat liquor for the production of velour split. Can be used alone or in combination with other anionic fat liquor in percentage varying from 3 to 8% depending the final article.

USE LIKERSOL K6 need to be emulsified with 200% water at 60°c, on the weight of the fat liquor, under stirring alone or in combination with other fat liquor. For more information about the use of the product don’t hesitate to contact our technical staff.



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LIKERSOL PB/S Sulphonated neatsfoot oil

FEATURES - Sulphonated neatsfoot oil with synthetic additives. - Active material 75%. - pH 1:10 solution approx.6-7.

PROPERTIES LIKERSOL PB/S gives a very full, soft leather, with an extraordinary lubrication of the fibre. It is suitable for the production of many kind of leather article, particularly when id required a good grain elasticity and a good touch.

USE LIKERSOL PB/S is particularly recommended for production of white and pastel coloured leather being stable and not oxidasable.



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LIKERSOL SPC Natural and synthetic sulphited and phosphited fatliquor

FEATURES - Active substance: 70% - pH sol. 1:10 = 5.5-6.5 - Stability: very good - Good light fastness - Appearance: lightly viscous clear liquid

PROPERTIES LIKERSOL SPC has a strong softening power on every kind of processed leather, imparting silky and smooth hand thanks to its high penetration.

USE LIKERSOL SPC can be used alone or blended for all those articles requiring a strong softness of inside structure.



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LIKERSOL WP Semi synthetic fatliquorr

FEATURES - Appearance: White paste - Base: Blend of natural and synthetic oils - Active substance: 45% approx. - Good light fastness -.Character: Anionic

PROPERTIES LIKERSOL WP can be used both to impart waterproofing and to impart softness as semi-synthetic fatliquor.

USE We suggest to emulsify LIKERSOL WP before use with water at 50° - 52°C at the ratio of 1:3. To obtain best results of waterproofing in addition to a careful neutralisation of leather (pH must never get lower than 5.2-5.3) it is important to use the best care during previous processes (soaking, degreasing, etc.) and make attention to the used chemicals during retanning such as resins, syntans, etc., that could involve the final waterproof.



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LIKERSOL WPRF Synthetic fatliquor for waterproof

FEATURES - Appearance: White liquid - Base: emulsionated synthetic oils - Active substance:42% approx. - Good light fastness -.Character: Anionic - pH 1:10 solution: approx 9,5/10

PROPERTIES LIKERSOL WPRF is a waterproofing synthetic fat liquor that produce leather with high value of waterproofing. LIKERSOL WPRF gives a soft, full hand without jeopardising the break of the grain. When is used together with other traditional fatliquors helps to improve the resistance to the water of the leather. For example can be used to improve the resistance to the water drop on some articles..

USE LIKERSOL WPRF is used in quantity varying from 5 to 12% depending upon final article. The Waterproofing properties are optimized when , at the end of the retanning process, the fatliquor is fixed with the use of chrome, aluminium or zirconium salts. It very important to take attention of all the phase of production, such as beamhouse process and degreasing , as well as during retanning for resyn , syntans etc, that can influence the final results. , Biokimica s.p.a. Via A.Vespucci , 10


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LIKERSOL WR Waterproofing fatliquor

FEATURES - Appearance: White paste - Concentration: 45% - pH sol. 1:10= 8 approx. - Very good light fastness - Character: Anionic

PROPERTIES LIKERSOL WR is a synthetic based fatliquor suitable to obtain waterproof articles. Common characteristic to this kind of fatliquors is the necessity to fix the product by using chrome salts, aluminium salts, etc.. To obtain best results it is necessary to neutralise wet-blue leather to a pH value of 5.5 at least.

USE LIKERSOL WR can be used alone or in combination together with Likersol WP. Likersol WR can be added directly in drum without necessity of previous emulsify. Percentages of use vary in consideration of needed article and treated leather.



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LIKERSOL WS Acrylic polymer with softening action

FEATURES - Appearance: White paste - Concentration: 25% - pH sol. 1:10= 4,5 approx. - Very good light fastness

PROPERTIES LIKERSOL WS is a acrylic polymer with softening action suitable for production of soft washable article, like garment or upholstery, maintaining wash after wash the original softness. It also used , thank to its dispersing action on waterproof fatliquoring where it helps the penetration of the waterproofing fatliquor through the leather section .

USE LIKERSOL Ws is used in combination together with traditional fatliquor for soft article like garment or upholstery. For waterproof article is used together with our LIKERSOL WR or LIKERSOL WP. For further information on the matter , please contact our technical staff.



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LIKERSOL ZBN Sulphonated fatliquor

FEATURES - Basis: natural lanolin and fish oil - Suitable for softy uppers and furniture nappa - Active substance: approx. 50% - Character: anionic - pH sol. 1:10= 7 approx.

PROPERTIES LIKERSOL ZBN is a fatliquor with a moderate penetrating capacity. It imparts a warm and wet touch to the leather. Likersol ZBN produces a certain water-repellent effect on the leather surface. It never induces spue phenomena on the surface.

USE LIKERSOL ZBN can be used either alone or combined with other anionic fatliquors to produce leather with the typical lanolin feel. LIKERSOL ZBN is useful to improve the darkening effect on burnish leather. Dosages depend on leather required.



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LIKERWAX BM Special self emulsifying wax

FEATURES - Appearance: translucent solid - Active material: 100% - pH = 7 approx..

PROPERTIES LIKERWAX BM is a particular blend of synthetic waxes that permits to obtain an excellent burnish effect after polishing of leathers. This product imparts a particular fullness and silky hand to treated leathers.

USE LIKERWAX BM has to be dissolved with hot water before added into drum, to guarantee a correct distribution on leathers. The percentage of use may change depending on the treated leathers and the wished article.



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NUTREX PB/10 Natural neatsfoot oil

FEATURES - Dark yellow coloured limpid liquid oil. - Density at 15° C.:0.95 g/cm3+/-0.005. - Acidity (in % oleic acid ):<0.9%. - Turbidity point:-10°C. - Iodine value: 88+/- 3.

PROPERTIES Purest natural oil, totally saponifiable and devoid of any mineral derivative. NUTREX PB/10 is a classic product used both for grain treatment and for fatliquoring, its absolute pureness guarantees: - absolute uniformity; - highest penetration capacity; - highest oxidation resistance.

USE NUTREX PB/10 may be mixed and emulsified with sulphited/sulphonated oils, as well as with appropriate emulsifiers such as OVONUTREX. Due to the product being totally natural, it is not stable at low temperatures: it is therefore advisable to avoid prolonged storage, particularly in case environmental temperature decreases below minus 10°C.



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NUTREXOL 123 Highly concentrated fatliquor

FEATURES - Bright yellow liquid. - Auto-emulsifiable natural oil of particular purity. - Water-emulsifiable in any proportion.

PROPERTIES NUTREXOL 123 is an extremely pure and concentrated (100% ) fatliquor, its emulsion is stable up to pH 3 and in the presence of electrolytes. This product fills the leather considerably giving a soft and full hand with all the characteristics of leather fatliquored with natural neatsfoot oil. It can be successfully used for buffalo, goat, calf and pig skins both in the case of nappa and glazed leather.

USE 2 to 6% on shaved weight, during fatliquoring or together with retanning agents.



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NUTREXOL 150/S Synthetic fatliquor

FEATURES - Basis: synthetic oils, phosphoric ester, and special emulsifiers. - Suitable for all types of leather- Excellent light fastness - Anionic character - Lightly coloured paste easy to pour, sensitive to frozen - pH 1:10 solution approx. 6 - Active substance approx. 60%

PROPERTIES NUTREXOL 150/S fat-liquor penetrates deep and uniformly into the fibres of the leather imparting to it excellent softness with a low specific weight impossible to obtain with traditional sulphited ,natural or synthetic , fatliquor. NUTREXOL 150/S gives the leather a silky feel and never produce fatty spue phenomena ,being not oxidizable to the light it is indicated as fatliquor for white and pastel shade coloured leather. NUTREXOL 150/S is indicated for production of nubuck, infact it improves both the buffing and the dyeing properties.

USE Alone or together with raw oil or anionic fat-liquor to produce soft and light leather. NUTREXOL 150/S can be used to stabilise emulsion and to improve penetration properties of mixture of fat-liquoring traditionally used



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NUTREXOL 160 Synthetic fatliquor

FEATURES - Semifluid paste of creamy colour - Anionic character - Active substance 80% - Emulsion at 5% : fine, milky emulsion - pH emulsion at 5% : 8/8.3

PROPERTIES NUTREXOL 160 is a fat-liquor completely synthetic for suede and nubuck leather, infact it gives softness ,silky feel and brilliant colour. NUTREXOL 160 is stable and light-fast, therefore it is indicated for white leather and pastel colour.

USE Alone or together with anionic , sulphited or sulphonated oil.



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NUTREXOL 187 Complete fatliquor

FEATURES - Blend of natural and synthetic sulphonated and sulphited fats. - Homogeneous paste of light brown colour - pH 1:10 emulsion approx. 6.8 - Active substance approx. 65%

PROPERTIES NUTREXOL 187 is a blend of anionic fat-liquors developed to use for production of pure aniline leather, on lining and upper leather without finishing; it gives leather with a good softness and with a silky feel as well as a tight grain well polishable. It can be used alone but eventually we can improve distribution of the products by adding emulsify agent and low quantity of NUTREX PB-10 .

USE Alone as a single fat liquoring agent for production of lining from 8 to 10%. For production of upper leather together with raw oil from 6% to 7%.



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NUTREXOL 195 Lecitine based fatliquor

FEATURES - Natural phospholipides based, lightly anionic fatliquor. - Appearance: viscous paste of brown colour - Active substance: 60% approx.

PROPERTIES Thanks to its chemical nature, NUTREXOL 195 has an excellent affinity with leather fibres. NUTREXOL 195 has a medium penetration and for this reason it gives to finished sole leather an exceptional feel, but its penetration can be increased by mixing it with other chemicals with high penetration such as e.g. sulphited oils (Bioxoil C/I) or phosphated synthetic fatliquors (Nutrexol 150). NUTREXOL 195 gives to leather softness, fullness and very appreciate silky feel, it doesn’t cause "repousse".

USE NUTREXOL 195 is mainly used for sheep skins for garment also as only fatliquor. NUTREXOL 195 can be used as final fatliquor for chrome leathers to obtain a natural silky feel..



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NUTREXOL 578 Auxiliary cationic fatliquor

FEATURES - Jelly paste almost transparent. - Cationic character. - pH 1:10 solution approx. 4.6. - Avoid using at pH levels above 7. - Active materials: approx. 22%.

PROPERTIES NUTREXOL 578 is stable to both electrolytes and chromium salts, for which reason it can be used both in the chrome bath and while retanning. In an acid environment it gives very fine emulsions, thereby rapidly penetrating into the leather and enhancing chromium salts fixing. NUTREXOL 578 allows to soak-back rapidly accidentally dried tanned leathers.

USE NUTREXOL 578 is recommended for pre-fatliquoring in the tanning bath at the rate of 0.2-0,5% on pickled weight, as well as during sandwich treatment between the first and the second fatliquoring (0.5-1% on shaved weight); it can also be used after fatliquoring and acidification to preserve a fresh touch and protect the grain against the action of the vacuum drier as well as from the other subsequent drying operations. The product should be emulsified after it has been mixed with cold water.



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SULFONUTREX 43/F Valuable fatliquor derived from refined coconut oil

FEATURES - Amber coloured liquid at 30°C.; in the form of a paste below such temperature. - Anionic character. - pH 1:50 solution approx. 6.5. - Active portion of sulphonated oil; 72-74%.

PROPERTIES This product is particularly suitable for nubuck, suede, reptile skins and any type of leather for which the highest softness (without jeopardising the firmness of the grain) is required. SULFONUTREX 43/F has the great advantage of not making it heavy. Furthermore, it cannot be oxidised, therefore being suitable for white as well as light coloured skins.

USE The product is usually mixed with other fatliquors and emulsified in water at a temperature of 60°C.; dosages may range from 2 to 4% or more in the case of reptile skins.



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SULFONUTREX 48 Blend of sulphonated fish oils with addition of synthetic oil

FEATURES - Red clear liquid - Anionic character - pH 1:10 emulsion approx. 6.4 - Combined SO3 1.3% +/- 0,2% - Active substance 78%-80%

PROPERTIES SULFONUTREX 48 is a special blend of oils developed by Houghton to obtain a suitable anti oxidative for production of sole leather. The features and the particular method of sulphonation made this fat-liquor particularly suitable for production of sole leather ,imparting to it a light colour , avoiding cracking and oxidation of tannin on the grain surface during drying. SULFONUTREX 48 is as well a good fat liquor for soft vegetable leather like leather goods or upper leather, eventually used with other sulphited fatliquors like SULFIMEX 110 or BIOXOIL C/I.

USE For sole leather as usual. For leather goods with full vegetable or chromevegetable tannage, percentages depend upon the article and the blend of fat-liquor.



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SULFONUTREX 54/S Selected sulphonated fish oils

FEATURES - Viscous, limpid liquid of a light brown colour. - Anionic character. - pH 1:10 solution approx. 6.3. - Active materials: approx. 80%.

PROPERTIES SULFONUTREX 54/S is an excellent fatliquor for vegetable tanned as well as mixtan leather, yielding good softness and a full vivid feel. The high quality of the oils employed for producing SULFONUTREX 54/S results in its being almost odourless and inoxidizable.

USE SULFONUTREX 54/S can emulsify most pure oils, and can be safely mixed with other sulphonated oils without any inconvenience.



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BIOFYL T Filling agent for wet blue

FEATURES - Mixture of inorganic ( silicate ) and organic (proteins) compounds with dicyandiamide - formaldehyde resin (anionic charge ). - With homogeneous powder - Active substance: approx 95%

PROPERTIES BIOFYL T allows a remarkable increase in the fullness of the skin especially in the empty parts of the skin such as the belly, flanks etc. Infact BIOFYL T acts in a selective way giving the pelt fullness and a firm grain. Remarkable benefits have been noticed when BIOFYLL T is used along with skins of correct grain and split, improving considerably the buffing properties. BIOFYLL T can be used on both white and pastel shades of leather due to its good light fastness and because it does not affect the colour's shade. Our experience has shown that it is advisable to use BIOFYL T after dyeing. .

USE Usually together with the fat liquors, with percentages varying from 1 to 3% on shaved weight. For correct grain, split etc. during retanning in percentages varying from 2 to 8 %.



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BIOPLEN V12 Synthetic resin in solution

FEATURES - Aspect: pale yellow liquid. - Anionic character - Active substance 35%

PROPERTIES BIOPLEN V12 is a retanning agent based on styrol-maleic polymer that give to the leather a exceptional fullness and roundness. BIOPLEN V12 gives also a discrete rubbery feeling and springiness to the treated leather




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BIOTAN Mixed retanning agent

FEATURES - Fine, whitish powder. - Water soluble in any proportion. - pH 1:10 solution approx.3. - Basis: sulphonated phenolic condensate.

PROPERTIES BIOTAN is a complete synthetic tanning agent equivalent to any vegetable tannin. During retanning it yields firm skins, full, and light in colour. BIOTAN tanned skins can be perfectly dyed and buffed, which makes the product quite suitable for nubuck and velour, particularly for thicker types where excellent nap of the split is required. BIOTAN can be valuable for tannage too, since it yields firm skins of very light colours and effectively reduces to an absolute minimum the possibility of chrome stains, even in the case of either too rapidly or incorrectly performed basifying procedures.

USE For pretanned skins to be subsequently either mineral or vegetable tanned: 1-2% on limed weight. For chrome retannage: 2/5% on shaved weight.



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BIOTAN T6A POLV Syntan

FEATURES - Aspect: ivory powder - pH 10%= approx.6 - Electrolytes stability: good

PROPERTIES BIOTAN T6A POLV. Imparts to the leather good softness and fullness, with high light fastness properties. Due to its pH BIOTAN T6A POLV. Can be used during neutralization.

USE The product is particularly suitable for upholstery and garment articles . Percentage can be variable according to the desired articles.



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BIOTAN PPV pretanning syntan

FEATURES - Active substance approx.: 90% - pH 1:10 solution approx. 2.2 - 2.5 - Medium light fastness - Acidity: 27

PROPERTIES BIOTAN PPV is a powder Syntan that can be used in pretanning of vegetable leathers. It penetrates into thickness of sole-leather preparing it to vegetable tanning.BIOTAN PPV has a light tanning action on leather surface imparting a smooth and clear grain.

USE BIOTAN PPV, used as pretanning agent, can be added directly in the drum in percentages varying from 3% to 5%.



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BIOTAN N Phenolic based syntan

FEATURES - Yellowish powder - Concentration >93% - pH 1:10 solution approx. 3.8-4.2 - Good light fastness

PROPERTIES BIOTAN N is a phenolic based syntan and when it is used on retannage of wet-blue imparts to the leather softness and elastic grain.BIOTAN N is particularly indicated for production of soft nappa upper leather and for garment leather as well as any kind of soft leather.This product can be used for production of soft vegetable leather.

USE Retanning : 3%-5% on shaved weight after fat-liquoring and anyway always after neutralisation. For soft vegetable leather "vacchetta" 3%-4% together with the tanning agent preferable with Quebracho ATO



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BIOTAN LW Syntan for white

FEATURES - Appearance: white powder easily soluble - Basis: phenol - Active substance: 96-98% - pH solution approx. 3.5-4 - Very good light fastness

PROPERTIES BIOTAN LW is a phenol based syntan properly formulated for white leather. It imparts to chrome leathers a very good shade of white and a light fastness more than sulphonic based syntans. Other characteristics that this syntan imparts to leathers are: fine and closed grain, filled and round hand.

USE For all those articles that require an exceptional point of white and light fastness, or a dyeing in pastel colours.



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BIOTAN GNW Phenol derivated syntan for white leather

FEATURES - Fine, white coloured homogeneous powder. - Water soluble in any proportion. - pH 1:10 solution approx.3. - Solid materials 98%.

PROPERTIES BIOTAN GNW is a complete syntan agent with similar characteristics to those of sulphited Quebracho extract, furthermore it is light fast. When used alone, BIOTAN GNW yields full leather with thick fibres of the purest white. When added to vegetable tannins, it enhances their penetration and distribution through the skin cross section. Using BIOTAN GNW on chrome tanned leather (cattle, sheep or goat ) allows light coloured leather to be obtained with firm, fine grain with a soft feel, which can be easily dyed particularly in pastel shades.

USE In tannage or retannage of vegetable tanned leather or in retannage of chrome tanned leather in percentages varying from 2 to 8% or more. BIOTAN GNW may be used both alone and in combination with other retanning agents ( either natural or synthetic ). Specifically for white, it is advisable to use 1-3% of BIOTAN ALS. Thus obtaining a good degree of whiteness and full tannage.



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BIOTAN LF Replacement syntan

FEATURES - Phenolic replacement syntan - Yellowish and hygroscopic powder - pH 1:10 solution approx. 4 - Fair light fastness - Concentration 98%

PROPERTIES BIOTAN LF is a replacement syntan based on phenolic products with the following features: - good versatility of use - good filling effects - fairly good bleaching effect on the surface of the wet-blue or vegetable tanned leather. BIOTAN LF can be used in vegetable tanning together with vegetable tanning agent to obtain a tanned pelt with paler colour and finer grain.

USE Retannage of wet blue for white leather together with BIOTAN GNW to improve fullness from 2% to 6%. As bleaching agent and retanning agent of vegetable tanned leather from 2% to 8% on shaved weight. During tanning in combination with vegetable tanning agent a good formulation is the following:- 12% Quebracho ATO, 8% mimosa extract, 6% BIOTAN LF. In this way we can obtain a full hand leather with good dyeing properties also for pastel shade colour. The product is stable to storage and does not require particular attention for its use. Biokimica s.p.a. Via A.Vespucci , 10


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BIOTAN G50 Aldehyde tanning agent

FEATURES - Bright yellow liquid. - Water soluble in all proportions. - pH 1:10 solution approx.8-9.

PROPERTIES BIOTAN G50 is a particular tanning agent which allows the quality of tanned skin to be considerably improved with simple procedures. If used alone as a true tanning agent, one obtains yellowish leather with a full body, tear-resistant, fine grain without the possibility of drawn grain, as is often the case with aldehydic tanning agents. This product is commonly used for pretanning either chrome tanned or vegetable tanned skins, as well as for retanning procedures; chrome tanned skins in pretannage appear both fuller and softer and the tanning bath is thoroughly exhausted. BIOTAN G50 is most effective at pH levels ranging from 3.5 to 9, and can therefore be used during retanning procedures, both before and after neutralisation.

USE The product should be diluted in water (at the ratio 1:2) and subsequently poured into the rotating drum. Dosing depends upon the article. BIOTAN G50 is also effective in low dosages.



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BIOTAN E Phenolic based syntan

FEATURES - Pale coloured homogeneous powder. - Readily soluble in cold or warm water. - pH 1:10 solution approx. 4.2.

PROPERTIES BIOTAN E is a syntan specifically developed for a large and safe range of uses, for example tannage and retannage of chrome and vegetable tanned leathers. Vegetable tanned skins are bleached by using BIOTAN E, which is particularly appreciated in the case of light coloured leather. In chrome leather BIOTAN E gives a firm, full grain, far from hardening the leather ( as is the case with vegetable tannins ) our product makes the leather softer. BIOTAN E does not overload the grain and its dispersing action facilitates penetration of other retanning agents.

USE For retannage of chrome tanned leather, heavy leathers or full light leathers, embossed, buffed or full grain leathers alone or in combination with other anionic synthetic or natural retanning agents. For vegetable tanned and retanned skins as well as for E.I. tanned leather. Percentage of use depends upon fullness and final leather required.



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BIOTAN DO Synthetic retanning agent

FEATURES - Aspect: limpid liquid of yellowish colour - pH 10%= approx.7 - Active material: approx.45% - Solid to light: very good - Stability: excellent

PROPERTIES BIOTAN DO is a retanning agent that increases the steadiness of grain without getting hard the leather and it is particularly indicated for production of no elastic leathers.

USE It is advised to be used on neutralization bath before neutralization agents in different percentage from 3% to 6%. The product does not make clear the dyestuffs that for that reason result full and brilliant.



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BIOTAN CU Replacement tanning agent

FEATURES - Fine beige powder. - Readily water soluble. - pH 1:10 solution approx.4. - Tanning content 56-58% - Non tannins 34-36%.

PROPERTIES BIOTAN CU is produced by condensation of phenolnaphtalene sulphonic derivatives. Its particular composition makes it suitable for a number of tanning procedures, it is therefore an universal retanning agent. Due to its limited astringent action BIOTAN CU is recommended for high quality leather. No danger of over tanning is possible, the grain resulting both firm and fine. Combined with vegetable tannins and/or resins, it allows a wide range of leather to be obtained, from buffed box to glazed leather, up to full nappa. Combination tanned skins are thus made softer and fuller, compared to exclusively vegetable tanned skins, it yields smoother leather, both firmer and fuller, with a reduced tannin quantity, thanks to its dispersing action on phlobaphenes of the tannin extracts.

USE To be used in the usual percentages for any type of skins. For further information on the matter, please contact our technical staff



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BIOTAN CL Replacement syntan

FEATURES - Viscous liquid of brownish colour. - Miscible in water in all proportion. - pH 1:10 solution approx.4. - Concentration: approx. 48%

PROPERTIES BIOTAN CL is produced by condensation of phenolnaphtalene sulphonic derivatives. Its particular composition makes it suitable for a number of tanning procedures, it is therefore an universal retanning agent. Due to its limited astringent action BIOTAN CL is recommended for high quality leather. No danger of over tanning is possible, the grain resulting both firm and fine. Combined with vegetable tannins and/or resins, it allows a wide range of leather to be obtained, from buffed box to glazed leather, up to full nappa. Combination tanned skins are thus made softer and fuller, compared to exclusively vegetable tanned skins, it yields smoother leather.




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BIOTAN CD Neutralizing tanning agent

FEATURES - Fine, homogeneous, beige coloured powder. - Readily water soluble. - pH 1:10 solution approx. 7.4. - Basis: neutral salts derived from aromatic sulphonic acid. .

PROPERTIES BIOTAN CD is a masking agent for chrome baths, used in the tannage it gives fuller, lighter coloured leather. Its solution are neutral and can be mixed with all anionic products, as well as with all vegetable and syntan agents. The particular chemical structure of this product allows chrome tanned skins to be neutralised and at the same time tanned and filled, which results in a fuller tighter grain in the finished product. Far from being rigid, the latter is extremely soft, which is why BIOTAN CD is superior to any synthetic neutralising agent commonly used. BIOTAN CD also increases stability to sweating of chrome tanned leather, which is fundamental for upper leather. In the dyeing of chrome tanned leather with anionic dyestuff, BIOTAN CD disperses and uniforms the shade without bleaching too much.

USE To basify chrome tannage; 1-2% of BIOTAN CD on limed weight. To neutralise chrome leather: 1-4% of BIOTAN CD (either alone or combined with other neutralising agents) on shaved weight. For chrome leather dyeing: 1-3% of BIOTAN CD on shaved weight



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BIOTAN BN/L Integral syntan

FEATURES - Viscous, dark brown liquid. - Water soluble in any proportion. - pH 1:10 solution approx. 3.5. - Tanning content 48-50%. - Non tanning 2-4%. - Unlimited storage time. .

PROPERTIES BIOTAN BN/L is a liquid syntan, which can be used alone or in combination with vegetable tannins. In the first case it will yield firm, very light almost white coloured leather with excellent dye ability. The most important characteristics of this product can best be appreciated on chrome retanned leather, yielding softer and fuller leather with a fine grain and a light uniform colour. Leathers treated with BIOTAN BN/L also posses excellent properties for dyeing, fat liquoring and buffing.

USE Retannage on chrome tanned skins or hides: 2-5%. However, higher percentages were observed not to jeopardise either quality or fineness of the grain, in fact fullness was markedly increased.



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BIOTAN BC/8 Retanning agent based on a mixture of syntan and vegetable extract

FEATURES - White powder. - Soluble in water. - pH 1:10 solution approx. 6,5. - Solid materials >78%. .

PROPERTIES BIOTAN BC/8 is a particular products for use and properties. Infact it is a vegetable filling agent containing a quantity of syntan and a fairly quantity of oily substance that gives lubrication to the grain of the leather preserving the grain from the action of vacuum drying and imparting to it a smooth and fine looking really interesting.BIOTAN BC/8 can be used also for pastel colour leather.

USE Retanning of wet blue for soft leather from 3% to 6% depending upon the characteristic required , it is advisable to use BIOTAN BC/8 together with syntan as BIOTAN , BIOTAN GNW, BIOTAN BN/L etc



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BIOTAN AR White lightfast syntan

FEATURES - Viscous, light brown liquid. - Water soluble. - pH 1:10 solution approx. 3.6. - Tanning content approx. 27%. - Non tannins approx. 10%.

PROPERTIES BIOTAN AR is an excellent tanning agent for any kind of white leather. When combined with other synthetic products, such as BIOTAN, BIOTAN GNW etc. it yields soft, full white skins. It can also be used in chrome retannage, thereby yielding firm uppers, both white and pastel colours. Furthermore, it can be useful in order to obtain a light coloured vegetable leather used together with tannins during tannage or alone in subsequent retannage.

USE For tanning white leather of considerable thicknesses; use 40-50% of BIOTAN AR on pelt weight. Retannage for white leather on chrome tanned skin: 6-12% on shaved weight.



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BIOTAN ALS Replacement tanning agent for white leather

FEATURES - Semi-viscous, amber coloured liquid. - Water soluble in any proportion. - pH 1:10 solution approx. 2.8. - Tanning content 22-24%. - Non tannins 9%.

PROPERTIES Adding BIOTAN ALS to the usual mixtures for vegetable tanning allows brighter, softer leather to be obtained, thereby accelerating dye and fat liquor penetration. When used alone, BIOTAN ALS yields soft, white skins, extremely light fast. Tanning reptile skins by BIOTAN ALS preserves natural grain pattern. This product possesses an excellent bleaching and filling action on chrome retannage, particularly for nubuck, preparing the grain for excellent buffing. BIOTAN ALS is an excellent synthetic for shrunken grain if properly acidified.




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BIOTAN AB Tanning agent based on aluminium-chrome complex

FEATURES - Aspect: heterogenous greenish powder - ph solution 1:10= 4 - aluminium oxide content 14% - chrome oxide content 7% - basicity approx 50 ° shc

PROPERTIES BIOTAN AB is a mineral tanning agent that can be used in many phase of the leather production. BIOTAN AB is easily solubilised also in cold water and can be poured directly into the drum. BIOTAN AB as very good light fasteness and good compatibility with cationic fatliquor

USE BIOTAN AB is widely used in chrome retannage of suede, nubuck, full grain calfskins. Improves the firmness and the buffing properties of the finished leather. Moreover it is particularly suitable for white and pastel shade colour. When used as dyeing auxiliary it improves brightness and intensity of the anionic dyestuff



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BIOTAN 3LX Special replacement syntan for white leather

FEATURES - Product of condensation of dioxy-diphenyl-sulphon. - White powder completely soluble. - Tanning agent approx. 60%. - pH 1:10 solution approx. 4.1-4. - Solid 98%. .

PROPERTIES Lightfast syntan , specially indicated for white leather , being a remarkably tanning agent it is indicated to be used alone for the preparation of white leather also through section. During the retanning of wet-blue BIOTAN 3LX gives softness and fine grain bleached grain. On vegetable tanned hides or skins BIOTAN 3LX can be successfully used to bleach and produce vegetable tanned leather with a paler colour or easier to obtain pastel shade. BIOTAN 3LX is indicated for tanning of reptile skins.

USE - Retanning of wet-blue for white leather from 5% to 10% on shaved weight. - Tanning of reptile skins from 20% to 40% on pelt weight. - Retanning and bleaching of vegetable leather from 7% to 12% on shaved weight.



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BIOPLEN MB Resin derived tanning filler

FEATURES - Fine beige powder. - 100% water soluble. - Active materials approx. 90%. - pH 1:10 solution approx. 8.3.

PROPERTIES BIOPLEN MB is a resin derived retanning agent particularly suitable for retannage of chrome tanned leather for firm articles, buffed leather etc. BIOPLEN MB acts selectively on the empty fibre structures of the pelt. BIOPLEN MB makes leather both fuller and firmer without in the least affecting chrome leather characteristics, favouring further grain buffing.

USE Following neutralisation, to be used either alone or combined with other anionic retanning agents. Dosage may range from 2 to 5%, according to skin type and final product.



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BIOPLEN MC 40 Retanning and fatliquoring compound

FEATURES - Dense paste of beige colour - Water soluble - pH sol. 1:10= 5.5

PROPERTIES Bioplen MC 40 is a new concept products that has got both retanning and fatliquoring properties. BIOPLEN MC 40 is used on wet blue stock alone or together with acrylic resin to produce different article in a economical and simply way. It is particularly suitable to produce firm crust for article like brush off, patent and any kind of impregnated leather.

USE Depending the article and the softness required the amount used vary from 10 to 15% alone or together with stable acrylic rein as our BIOPLEN DLA . Can be used without previous neutralisation. For any further information you may need, our technical staff is at your disposal.



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BIOPLEN LH Impregnating resin for drum

FEATURES - Acrylic copolymer at high molecular weight - Slightly viscous milky liquid - Non ionic - Active substance 40% - Completely soluble in cold water - pH 1:10 solution approx. 6 - Film : transparent, slightly opalescent, elastic and persistent.

PROPERTIES BIOPLEN LH is a special acrylic resin developed to be used in drums. It is used especially when great grain firmness is required; infact the characteristic of this resin is that does not penetrate completely through the cross section but it stop just under the grain layer fixing itself. Another use of this products is when we want to produce sides with PULL-UP or greasy finishing, infact BIOPLEN LH avoid an excessive penetration of the finishing oil with the consequent saving in quantity of oil and avoiding flabby leather. BIOPLEN LH is indicated for drum impregnation for production of splits to be finished normally or by BY-CAST method.

USE Both on full grain or split 2%-4% on shaved weight after fat-liquoring and before addition of formic acid. Drumming time varies from 10 to 20 minutes according degree of penetration required and then is necessary an acidification to pH 4 to obtain the best result. The product is sensitive to frozen and it is possible to store it properly for one year. The product does not necessitate particular precaution when used .



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BIOPLEN LV Resin for impregnation in drum

FEATURES - Vinylic copolymer - Appearance: milky liquid lightly viscous - pH sol. 1:10= 4.5 - Lightly dull and very strong film - Active substance approx 60%.

PROPERTIES Bioplen LV gives a very strong and elastic film that, at standard conditions, presents an elongation break point of about 700%. Bioplen LV is light fast and so suitable for white.

USE Bioplen LV is mostly used for production of splits for shoes. Using this product at different concentrations we can obtain closed splits with a similar to nubuk appearance and in case of splits for trekking shoes or other it prepare a very good ground for further finishing operations. Usually the used percentages varies from 2% to 4% on shaved weight.



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BIOPLEN FFR Retanning resin

FEATURES - Active substances: 98% ca. - pH sol. 1: 10= 7.5/8 - Light fastness: good

PROPERTIES Bioplen FFR is a retanning agent melamine-formaldehyde resin based that imparts to leather a very good fullness particularly to empty and weak areas. Bioplen FFR is particularly suitable for chrome leather when particularly exigencies of fullness and firmness of the grain are required

USE For every chrome leather, during retanning after neutralising, combined with anionic syntans: 2/4%. For splits for stiff suede articles type "English" and/or pigmented one: 2/4%.



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BIOPLEN DLA Acrylic copolymer

FEATURES - Amber brown viscous liquid - Soft and elastic film - Active substance: 40% - pH sol. 1:10= 6.8

PROPERTIES Bioplen DLA is an acrylic/acrilonitrile copolymer that imparts to leathers a good firmness maintaining a soft and doughy hand. Its range of action varies from pH 3 to 8. Bioplen DLA was purposely studied to minimise the problem of loose grain on empty leather or on part of it that presents this defect. Thanks to its fairly good light fastness Bioplen DLA can be used also for light shades.

USE In retanning together with mineral retanning agents or after neutralisation from 3% to 6% depending to the article.



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BIOPLEN C Rubber resin

FEATURES - Aspect: pink liquid. - pH 1:10 solution approx. 4,5

PROPERTIES BIOPLEN C is a particular resin that imparts to the leather feature typical o the natural rubber resin. BIOPLEN C produce leather with good elastic grain, at the same time fine and tight. BIOPLEN C permits to mill the leather without problem of the ageing of the article. BIOPLEN C is mostly used on sheepskins and for the production of elastic and fulla article.




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BIOPLEN BCM Synthetic filling agent derived from macromolecular polymers

FEATURES - Viscous reddish-brown coloured liquid. - pH 1:10 solution approx. 5.5. - Water soluble in any proportion.

PROPERTIES BIOPLEN BCM is a particular retanning resin yielding full leather with firm grain, it can be used both for retanning chrome and combination tanned skins; in either case neutralisation should be performed first. Its filling capacity is enhanced if followed by such syntans as BIOTAN BNL, BIOTAN GNW, BIOTAN CU or vegetable tannins. BIOPLEN BCM does not bleach or affect dyeing.

USE On hides neutralise to pH 5-5.5 abd during retannage use the filling resin in a percentage ranging from 4 to 6% on shaved weight.



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HOUGHTOFIL RC Anionic tanning resin

FEATURES - Clear , almost transparent liquid - Anionic character - pH 1:10 solution approx. 5.5

PROPERTIES HOUGHTOFIL RC produces leather extremely full and with a soft feel ,feature really difficult to obtain with similar products, it is compatible with all anionic product such as dyestuff ,syntans, sulphonated and sulphited fat-liquors etc. The filling action of this product can be diminished by means of masking salt like formate, polyphosphate etc. To improve filling effect we suggest to add a low quantity of replacement syntan such as our BIOTAN BNL or BIOTAN CU after 20 minutes of drumming ( Drumming time must not be too long). HOUGHTOFIL RC is the ideal retanning agent for nappa and generally soft leather.

USE After neutralisation 3%-7% on shaved weight of HOUGHTOFIL RC ( one or two addition ) followed by the fat-liquor and at the end 3%-4% of replacement syntan.



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BIOTAN WDL Aldehyde tanning agent

FEATURES - Active material:45% - Typical aldehydic smell - Pale yellow liquid - pH 1:10 7±0,5

PROPERTIES BIOTAN WDL is a product based on modified aldehyde that produces full and spongy leathers. Used on chrome retanning it permits to obtain leathers with more roundness and fullness, while on vegetable tanned leathers it improves softness and resistance to tear. The product may be used for white or pale articles in consideration of its good resistance to light.

USE The percentage of use depends on processing leathers and desired article.



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CROMOSINT HN Mixture of syntans in a complex with basic chromium sulphate

FEATURES - Heterogeneous, greenish powder. - Cr2 O3 contents: approx. 12%. - pH 1:10 solution approx.3. - Dry substance approx. 92%.

PROPERTIES CROMOSINT HN is a pre and retanning agent, totally different from other commercially available chrome/syntan agents. During retanning procedures, CROMOSINT HN yields both soft an firm leather, with higher tear resistance and fine grain. A peculiarity of this product lies in its making skins (under particular processing conditions) extremely soft. Furthermore CROMOSINT HN retanned skins are characterised by their light colours and their dye ability. CROMOSINT HN can be used as a pretannage in the pickle bath too, with considerable advantages to both.

USE During retanning procedures, before neutralisation: 3-8% on shaved weight. For pretannage: 1-3% on pelt weight.



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BIOTAN TBS Synthetic retanning agent

FEATURES - Aspect: beige powder - pH 10% =4,1-4,2 -.Active material: 98% approx.

PROPERTIES BIOTAN TBS is a balanced blend of synthetic tanning and filler, that imparts to the leather an good roundness and fullness maintaining a fine grain. BIOTAN TBS produce leather with good light fastness and can be used also for the production of car upholstery leather.

USE Its percentage of use depends on processing leathers and desired article.



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BIOTAN TBX Complete retanning agent

FEATURES - Aspect: heterogeneous beige powder - pH 10% =4 approx. -.Active material: 100% approx.

PROPERTIES The composition of BIOTAN TBX, a balanced blend of synthetic tanning, vegetable extracts and filler, has a good tanning power on all kind of hides. Skins treated with BIOTAN TBX look fully, round and with light colour. Due to its chemical properties, this product may be used in tanning and retanning of white articles where high light fastness is required.

USE Its percentage of use depends on processing leathers and desired article.



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BIOPLEN V6 Synthetic resin in solution

FEATURES - Light yellow liquid. - Water soluble in any proportion. - Anionic charge. - pH 1:10 solution approx. 8.

PROPERTIES BIOPLEN V6 is a particular retanning agent derived from stirolmaleic polymers, yielding exceptionally full vivid leather with extremely elastic grain. The major advantage one obtains by using BIOPLEN V6 in upper leather is the elimination or at least the reduction to the bare minimum of grain cracking. BIOPLEN V6 is mainly used to obtain full, elastic skins. It does not bleach dyes or affect softness; in fact, the latter is markedly enhanced.

USE After fatliquoring, 2 to 5% of BIOPLEN V6 should be used; it is fundamental to acidify the exhausted fat liquor bath by means of either formic acid or appropriate syntans .



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BIOPLEN TM Acrylic retanning agent

FEATURES - Viscous , amber coloured liquid. - Aqueous solution of an acrylic acid derived polymer. - pH 1:10 solution approx. 6. - Anion active charge.

PROPERTIES BIOPLEN TM though viscous is versatile and can easily be diluted by adding warm water, the product is acid sensitive and may precipitate at pH levels below 4. It can be safely employed with tanning agents ( both synthetic and vegetable ),sulphonated/sulphited fat liquors and any anion active products: provided pH levels does not decrease below 4. BIOPLEN TM is light fast and helps uniform dyeing, giving results with only slightest bleaching effect.

USE BIOPLEN TM can be used:- For retannage in order to obtain full soft chrome tanned leather without changing its character and without rough grain; - For neutralisation procedures: after at least 20` rotation with NEUTROPEL C7 or the like, to obtain pH 4.8-5 add 3-5% of BIOPLEN TM and more neutralising agents until pH reaches required levels. Wash as usual. By following this procedure one saves a bath, obtaining full, well dye able leather in subsequent operations. Drumming of at least 30` is indispensable in order to exhaust the product. Biokimica s.p.a. Via A.Vespucci , 10


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BIOPLEN PT400 Anionic tanning resin

FEATURES - Clear liquid - Anionic character - pH 1:10 solution approx. 7.2

PROPERTIES BIOPLEN PT400 is compatible with all anionic product therefore can be used during retannage with syntan or fatliquoring .BIOPLEN PT400 produces leather extremely full and with a soft feel ,feature really difficult to obtain with similar products.The filling action of this product can be diminished by means of masking salt like formate, polyphosphate etc.To improve filling effects we suggest to add a low quantity of replacement syntan such as our BIOTAN BNL or BIOTAN CU after 20 minutes of drumming ( Drumming time must not be too long).BIOPLEN PT400 is the suggest for retanning of nappa and generally soft leather.

USE After neutralisation 2 to 4% on shaved weight of BIOPLEN PT400 ( one or two addition ) followed by the fat-liquor and at the end 3%-4% of replacement syntan.



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BIOPLEN RPA Retanning powder form resyn

FEATURES - White powder - Active substance: 96-98% - pH 1:10 solution approx. 4 - Good light fastness - solid >90%

PROPERTIES Retanning resin at anionic character urea-formaldehyde condensed based, soluble in water, compatible with tanning auxiliaries of vegetable tanning, syntans, fat liquors and dyestuffs.

USE BIOPLEN RPA can be used in all type of chrome tanned leather imparting good fillness, it equalises dyeings and improves hair of suede. BIOPLEN RPA, thanks to its good light fastness, can be used with very good results, for the production of white leathers and nubuck.



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BIOKOLOR WT Tanning agent

FEATURES - Based on aluminium formate - pH 1:10 solution approx. 4.5 - White homogeneous powder - Cationic character - Active substance 55%

PROPERTIES BIOKOLOR WT is used mainly on retanning of wet-blue, particularly for production of nubuk and velour because improves considerably the buffing properties and thickness of the fibrous structure. BIOKOLOR WT improves affinity of dyestuff to the leather producing full and vivid colour , generally improving also fastness properties.For this reason BIOKOLOR WT can be used also as a dyeing auxiliary on vegetable tanned leather

USE BIOKOLOR WT can be used in retanning of velour and nubuk together with chrome salt. percentages vary from 2% to 3% on shaved weight. As dyeing auxiliary it is used between the two addition of dyestuff in sadwich dyeing procedures.



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BIOPLEN ATG Acrylic resin in solution

FEATURES - Viscous cream coloured liquid. - Anionic charge. - Content of dry materials: approx. 40%. - pH 1:10 solution approx.3. - Water soluble in any proportion.

PROPERTIES BIOPLEN ATG is a traditional retanning agent for chrome leather, thereby yielding full leather with firm grain and excellent light fastness, for which reason it is also recommended for white or pastel shades. BIOPLEN ATG can be combined with most commonly available tanning and retanning agents, both mineral, synthetic and vegetable. In our experience, this product is particularly effective in retannage with chrome at a pH level of 3.5 to 4.2.

USE BIOPLEN ATG can be used for any type of leather, although it is particularly suitable for firm leather, whether full grain or buffed type nubuck. Percentage of use may range from 3 to 6% or more .



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BIOFYLL FW Filling agent for wet blue

FEATURES - Mixture of inorganic ( silicate ) and organic ( proteins ) compounds. - White homogeneous powder

PROPERTIES BIOFYLL FW increases the fullness of the skin especially in the empty parts of the skin such as the belly, flanks etc. Infact BIOFYLL FW acts in a selective way giving the pelt fullness and a firm grain. Remarkable benefits have been noticed when BIOFYLL FW is used along with production of correct grain and split leather improving considerably the buffing properties. BIOFYLL FW can be used on both white and pastel shades of leather due to its good light fastness and because it does not affect the colour's shade. Our experience has shown that it is advisable to use BIOFYLL FW after dyeing. .

USE Usually together with the fat liquors, with percentages varying from 2 to 8%.



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BIOFYLL VE Filling agent

FEATURES - Inorganic granular silicon derived - Light fastness: good - Active substance: 98%

PROPERTIES Biofyll VE is an inorganic filler particularly suitable to allow the leather fibre closing. This characteristic makes it of a particular interest when fine buffing is required (e.g. suede or nubuk). The Biofyll VE used on chrome split (also of large dimensions and consequently very open) guarantees a good buffing and a consequent good closure.

USE The Biofyll VE is used in a percentage of 4-6% on shaved weight and it is added after neutralising in a new float at 30°C. It is preferable to make a light pre-fatliquoring in the same float before to add the product. The Biofyll VE is added in two or more times and has to be followed from a rotation of 4 hours approx. to complete the exhaustion.



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BIOFYLL DF Retanning filling resin

FEATURES - Appearance: very thin white powder - Water semi - soluble - Active substance 98% - pH sol. 1:10 = approx. 8,2. - Anionic charge.

PROPERTIES Biofyll DF joins to the full properties of an organic and inorganic filler, the retanning and cross-linking properties of an anionic dicyandiamide formaldehyde resin. This perfect joining gives to a single product excellent properties when we operates on empty leather with falling bellies. Biofyll DF is particularly suitable for rigid, semi - rigid smooth articles or buffed articles where fullness and firmness of the grain is needed. The product can be also used, even if in small percentages, on dry-drumming nappa. to uniform the belly and the back grain.

USE Biofyll Df is used, after neutralization, together with the retanning agent in percentage varying from 2% to 5% o shaved weight according to the final article. It Is suitable to be used on many articles where good firmness is required..



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BIOFYLL 97 Inorganic tanning salt

FEATURES - Base: Zirconium sulphate - Appearance: homogeneous white powder - Active substance: 30% approx. - Light fastness: excellent - Charge: anionic - Ready soluble in water

PROPERTIES Biofyll 97 is used as tanning agent for white leather or as a retanning agent on chrome or vegetable leather. Biofyll 97 used in tanning gives white leather and with very good characteristic of lightfastness , with good fullness and excellent glazing properties. Biofyll 97 in retannage is used for article as box calf , where is required a firm grain and hand , as well as for glazed article such as calfskin and goatskins. On suede helps to give a fine nappa .

USE BIOFYLL 97 can be used alone or in conjunction with chrome salt as well as being anionactive is stable to almost all the auxiliary product such as syntans , fatliquors , dyestuff etc, used on the treatment of the leather.



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AMPHONUTREX JD Amphoteric fat-liquor

FEATURES - Homogeneous, cream coloured paste. - Amphoteric character. - pH 1:10 solution approx.6.6. - Active material: approx. 50%.

PROPERTIES Owing to its amphoteric character AMPHONUTREX JD can be used through a range of pH value ( from 1 to 10 ). Therefore AMPHONUTREX JD is the ideal fat liquor for tanning and retanning. A better penetration of the retanning agent is achieved using AMPHONUTREX JD during retanning. AMPHONUTREX JD used on low quantity (1-2% in oil mixture) gives stable emulsion improving fatliquoring efficiency.

USE AMPHONUTREX JD can be used in the presence of neutral salt, mineral tanning agent, vegetable tanning agent, syntans and in any pH value without affecting the fatliquoring efficiency: - During tanning 0,5-1% on pelt weight. - During usual fatliquoring from 1 to 4% on shaved weight



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BIOKAL CSF Complex activated masking agent

FEATURES - Slightly coloured hygroscopic powder - Active substance 100% - pH 1:10 solution approx. 6.3

PROPERTIES BIOKAL CSF is a complexed masking agent , used to increase fullness of the wet-blue without influencing the following operation , as dyeing and uniformity of colour. The increased fullness can be appreciated with a less decreasing of substance thickness on the retanned wet-blue.BIOKAL CSF allows better exhaustion of the chrome salts during tanning due to its masking action.

USE BIOKAL CSF can be used ,both between the addition of chrome salts or after basification. In this case we will produce a wet-blue with a paler colour. Percentages vary from 0.5% to 1-1.5% , it can be used in powder form without danger of spoils. When it is used together our basifying agent BIOKAL BF we suggest to use it when water is added , to increase float, after about 3 hours of drumming from the addition of chrome salts and basifying agent, then further rotation of 3-5 hours.



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BIOBASE CRO Basifying agent

FEATURES - Appearance: fine powder of beige colour - Water insoluble at neutral pH, soluble in acid ambient - pH of 1% solution = 9,6/10 - Active substance 99%

PROPERTIES BiOBASE CRO is a basifying agent formed by particularly structured organic and inorganic alkali that allows to obtain a gradually increase of pH of the tanning float avoiding high pH peak normally produced with other basifying agent. That gives leather with a good distribution of chrome in section, fine grain and a better reaction to further tanning processes, particularly to dyeing. it distinguishes itself by its steady quality that makes it a reliable and easy to use product.

USE We suggest the use of this product at the end of tanning process in quantity variable from 0,35% to 0,5% depending on quantity of chrome and pH value of the pickle float. To obtain its complete exhaustion we suggest to finish the tanning process at a temperature of 40/25°C.



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CROMOSINT GBF Self basifying tanning agent

FEATURES - Self basifying agent based on chrome salts. - pale green powder - Cr2O3 content about 7/8%

PROPERTIES Cromosint GBF is a new concept basifying agent that , thanks to the masking and chrome exaution properties , his used in all chrome tannage process where a good fixation and exaution of chrome bath is required. Cromosint GBF yields wet blue pelt with good fullness and a well through tannage.

USE Cromosint GBF is used as the below suggestion: drain pickle float add 0,5% Sodium formate run 30' add 6% Chrome powder 25 % Cr2O3 run 180' add 50% Water 40/45°c 0,1% Tolcide C/30 run 20' add 3% Cromosint GBF run 8 hours pH about 3,7/3,9 unload : Biokimica s.p.a. Via A.Vespucci , 10


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ECOPEL B/2 Masking and pickling agent

FEATURES - Homogeneous yellowish powder - Soluble in acid condition - Active substance =99% - pH 1:10 solution approx. 2.3

PROPERTIES ECOPEL B/2 is a mixture of aliphatic Dicarboxylic acid in powder form with masking action. ECOPEL B/2 works in combination with strong acid , producing readily soluble calcium salt , improving firmness of grain. ECOPEL B/2 improves the reactivity of the collagen with mineral salt , therefore its yield better fixation ,increasing fullness of the treated pelt. .

USE ECOPEL B/2 can be used at the end of deliming operation, so that we can eliminate at its best insoluble calcium salts, or during pickling before the addition of inorganic acid. The quantity of use vary from 0.2%-1% calculated on pelt weight.



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BIOBASE Basifying agent

FEATURES - Appearance: white powder - pH sol. 1:10 = 10.5 approx. - Active substance: 100%

PROPERTIES Born from the exigency to have a highly qualified and with specific chemical physical properties basifying agent for chrome tannage, BIOBASE is the result of deeply researches made in our laboratories. The detailed selection of raw materials and the particular dosage of its components put BIOBASE amongst the "elite" chemicals of our range. This product, thanks to its new chemical structural conception, performs a gentle and constant basifying action of chrome float without submitting the leather to anomalous sudden changes of pH which will result harmful to the obtaining of an optimum wet blue. By using BIOBASE we will obtain a clear tannage with a reasonable smooth grain and a better exhaustion of tanning float.

USE The method of use is very easy: at beginning basification it is introduced in the drum 20-30% water at 35°C approx., upon a rotation of 5’-10’ it is added 10% on chrome weight of BIOBASE powder form, with a further rotation of 7-8 hours. Final pH of float, at standard conditions of use, will be 3.6-6.8. For further information our technical staff is at your disposition.



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BIOTAN PWS Pretanning agent for vegetable tannage

FEATURES - Beige powder - Solid content: 94%. - pH 1:10 solution approx. 1,9/2,2.

PROPERTIES BIOTAN PWS is a pretanning agent recommended for production of vegetable leather for leathergoods belt etc. Using BIOTAN PWS as pretanning agent, the fibres of the collagen are prepared to the following tannage, improving distribution , penetration and avoiding over tannage of the grain. BIOTAN PWS can be used also as pretanning agent to prepare the leather to shave before the vegetable tannage itself. Due to the strong dispersing action ,BIOTAN PWS ,can be used with success also in retanning as dispersing agent for syntans or vegetable extracts.

USE As pretanning agent 2 to 4% on pelt weight on the pickle float. If necessary the pelts can be sammed and shaved after pretanning.



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BIOTAN PPS Pretanning agent for vegetable sole leather

FEATURES - Solid content: 97%. - pH 1:10 solution approx. 1,9/2,2.

PROPERTIES BIOTAN PSS is a pretanning agent recommended for production of sole leather. Using BIOTAN PSS as pretanning agent the fibres of the collagen are prepared to the following tannage improving distribution, penetration and up take of the vegetable tanning agent, avoiding over tannage of the grain. It also prevent problem due to a poor deliming of same area of the pelt

USE As pretanning 1 to 3% on pelt weight in the pickle float.



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BIOTAN GL Aldehyde tanning agent

FEATURES - solution of glutaraldehyde. - Aldehyde typical smell - Yellowish, clear liquid. - pH 1:10 solution approx. 3/4.

PROPERTIES BIOTAN GL is stable to all mineral salts, therefore it can be used during chrome tanning to improve the fullness and the physical resistance of the leather. BIOTAN GL can react with vegetable tanning agent or phenol based syntan therefore it can be used as a pretanning agent only improving penetration and fixation of the vegetable tanning agent. Used alone BIOTAN GL produce a full and yellow leather with a temperature of gelatinization higher of 80°c When used during retannage on wet blue BIOTAN GL produce a softer and fuller leather , on vegetable leather it imparts good softness and improves tear resistance.

USE Tanning: 0.5-1.5% on pelt weight together with chrome or during pickle when the pH is lower than 3. Retanning: 1-4% depending upon final article. Pretanning for vegetable tanning: 1-2% on pelt weight after a pickle to pH between 3 to 3.5 ,after two/three hours of running add the vegetable tanning agent either in new float or the same of the pretanning



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BIOSINT ANT/30 Antimould agent

FEATURES - Brown coloured liquid biocide - Characteristic smell - Basis : thiocyanomethylthiobenzothiazole - Active substance 30%

PROPERTIES BIOSINT ANT/30 offers a wide spectrum of biocide activity on chrome or vegetable tanned leather. The water content of the wet blue or vegetable tanned pelt and environmental condition, such as temperature and humidity , easy to be found in some country, are conditions favourable to developing of moulds that jeopardise the material and its value, for this reason , is necessary to use a valuable anti moulds agent , more important when the wet-blue must be exported. BIOSINT ANT/30 allows a long time preservation with low toxicity against warm blood animals. BIOSINT ANT/30 does not contain phenol derivatives.

USE During pickling ; 1 hour after the last addition of acid. During chrome tannage just after the first chrome addition. Percentages range from 0.05% to 1,5% on pelt weight depending different factor such as content of natural fats, thickness, required time of preservation , therefore they can increase or decrease. Generally we suggest to use 0.15% on pelt weight of BIOSINT ANT/30 when 6 months of preservation is required on wet-blue. For further information on the matter , please contact our technical staff. Biokimica s.p.a. Via A.Vespucci , 10


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BIOKAL MS 24 Basifying agent

FEATURES - Appearance: fine powder of beige colour - Water insoluble at neutral pH, soluble in acid ambient

PROPERTIES Biokal MS 24 is a basifying agent for chrome tanning, that gives leather with a good distribution of chrome in section, fine grain and a better reaction to further tanning processes, particularly to dyeing. it distinguishes itself by its steady quality that makes it a reliable and easy to use product.

USE We suggest the use of this product combined with masking agents of chrome and, if possible, added in two times from the feeding tank, with moving drum. To obtain its complete exhaustion we suggest to finish the tanning process at a temperature of 40/45°C.



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BIOKAL MA Complex activated masking agent

FEATURES - Mixture of carbonic acids and salts (both organic and inorganic). - Fine, whitish powder, effervescent in water. - pH 1:10 solution approx. 7.

PROPERTIES BIOKAL MA is a masking agent for chrome tannage, whose particular composition yields considerable chrome masking complexes through the whole section of the skin. Such chemical activity results in a marked skin fullness which, in the case of splits, also yields increased thickness of the final product. Furthermore, BIOKAL MA yields light coloured skins the finest grain.

USE BIOKAL MA can be used both during the pickling and between two subsequent chrome additions in both cases it should be diluted with lukewarm water and poured into the rotating drum.



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BIOKAL KL Sequestering agent of iron ions

FEATURES - Bright yellow liquid. - pH 1:10 solution approx. 11.

PROPERTIES BIOKAL KL is a liquid sequestering iron ions which (being easy to use and far from expensive) is a favourite with tanneries. The product prevents the formation of iron stains during tanning procedures; it is particularly effective at acid pH levels.

USE Excellent results can be obtained by adding 0.15-0.3% (pelt weight) of BIOKAL KL to the pickle.



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