Leather Wet End Processing Chemicals

ARITAN AG50 LIQUID is a reactive polymeric syntan for grain tightening, bleaching and filling chrome leather and subsitute for Gluteraldehyde syntan.

CHEMICAL COMPOSITION
Polymeric reactive syntan

Characteristics Appearance : Clear viscous liquid pH 10% solution : 6.0 Solubility : Soluble in water

Properties

COMPATIBILITY
Compatibility with chemical used in processing however care should be taken to check its compatibility before using.

ARITAN AG50 LIQUID

• Is a new addition to polymeric syntans unlike other syntans it gives light colours soft, pump and light fast leathers free from harsh and stiff feel.
• Its compatibility with phenolic and naphthalene syntans and gives excellent results when used in combination with such syntans at an optimum pH of 4-5.5 bleaches chrome tanned leathers.
• Has body filling action on chrome and also tanning.
• Increases stitch tear strength considerably.
• Given extra ordinary tightness with unique soft and suppleness to leather.

RETANNING RESIN

CHEMICAL COMPOSITION
Acrylic polymer with high molecular weight

Characteristics APPEARANCE : cream-coloured viscous liquid pH in 10 % Sol. : 3-3.5 ionic charge : anionic solubility : 100% in water active matter : 35-40% compatibility : with chromium salts, zirconium, vegetable and synthetic tannins light fastness : Very good

Properties
ARITAN A540 can be used in all the retanning phases obtaining Very good filling with grain firmness. The best results will be Obtained by using ARITAN A540 after chrome tanning and before Neutralization. ARITAN A540 is used to obtain real Italian-style napped, combined With synthetic and vegetable tannins, obtaining various forms of Softness ond fullness.

The use of ARITAN A 540 allows to obtain full grain and corrected Grain finishing.

Use
2-6% on shaved weight, depending on leather type and desired effect.

RETANNING AGENT

CHEMICAL COMPOSITION
Oxazolidine tanning agent

Characteristics Appearance : straw-coloured liquid Active matter : 30 + 2 pH in 10% sol. : 9 + 1 content in H2O : 70 Marcusson Analysis Completely water maxiable at any ratio.

Properties
ARITAN MXT is a tanning agent with great affinity towards Natural proteins. Used in pre-tanning on pickled leathers, it allows Wet-white preparation and a noticeable save of tanning and Retanning agents in the Traditional tanning processes.

Combined with vegetable and synthetic tanning agents, it provides a softer, fuller and clearly lighter leather compared to Leathers manufactured without ARITAN MXT.

It can be used as pre-tanning agent as substitute for glutaraldehyde As well as in various stages of leather production with different quantities depending on the requested article. The mam advantages deriving from its use are :

• Better and excellent chrome float exhaustion.
• Fuller and softer leather
• Easy use in every tanning phase without negative interactions.
• Pure white hair if used on hairship.
• Combined with vegetable extracts, it noticeably improves leather shrinking degree, even without chorme.
• Bright Colours
• Degreasing action on pickle leathers during pre-tanning Moreover, ARITAN MXT is successfully used in wet-blue or Pickled neutralization phase in amounts of 1,5 2%, where thanks to its basic pH it exerts a neutralizing and very good reforming action.

RETANNING RESIN

CHEMICAL COMPOSITION
Styrene-maleic resin

Characteristics Appearance : amber-coloured colloidal solution Dry content : 18-20% pH in 10% sol. : 7.5-8 ionic charge : anionic compatibility : unstable at acid pH3 free monomer : lower than 0,01 light-fastness : very good solidity to solvent : moderate film : stiff/strong

ARITAN SM LIQUID is a retanning agent for chrome leathers with good Filling and swelling in section. Good grain closure and gummy Touch.

ARITAN SM LIQUID is a solvent-and ammonia-salt-free collidal solution of styrene-maleic polymers.

ARITAN LSI LIQUID is a resin retaining agent and gives good grain tightening. It is used for the retannage of wide variety of chrome leather and perticularly valuable for softy upper leathers with tight grain and for exceptionally soft nappa leathers and suede.

Characteristics Appearance : Clear aqueous liquid Chemical Nature : Monomeric Heterocyclic -N- Methanol. Precondensate product pH of 10% Solution : Good for Acid, Alkalies and Salt solution Compatability : Good with Anion-active, Non - ionic and Cation - active substance Storage Stability : Good about 6 months

Properties
The best result are obtained in the pH range of 3.5 to 4.5 i.e. slightly acidic pH. at very low pH below pH 3.5 it causes hardening of leather . At optimum pH it gives good grain tightening and structure leveling properties with a slight Filling action on leather . it produces a fine , tight and elastic grain leather and white or pastel coloured leather.

The best result are obtained in the acidic pH (3.5 to 4.5) and hence ARITAN LSI LIQUID can be applied before or during neutralization process.

Amount : 2.5% ARITAN LSI LIQUID

ARITAN GSI LIQUID is a tanning agent based on synthetic resin based on carbamide formaldehyde precondensate. ARITAN GSI LIQUID is suitable for the retannge of chrome upper, clothing leathers and upholstery. It has excelling and colour yield produces a good regular, nap on the suede.

Characteristics Appearance : Colourless , Slightly cloudy liquid Nature : Precondensate of carbamide formaldehyde pH : 6.5 to 7.5 Stability : Good stability to acids ,alkali and salts but not stable below pH 3.5 Compatibility : Good with anionic , cationic and non-ionic products.Non compatible with vegetable tannins . Light Fastness : Good Storage Stability : 5 to 6 months if stored carefully at 30 -35C

Properties
ARITAN GSI LIQUID is noted for its ease of application and uesd at many stages in leather processing including pickling retaining, chorme tanning, dyeing.

• Retanning : used of 3-5% may be applied alone in combination with suitable synthetic tanning for levelling out irregularities in the structure of leather & controlling the rataining process.
• Pickling : (3-5% on weight) is added to pickle bath at pH of about 5 and treatment time of 30 minutes produces leather which are substantially more compact in nature.
• Chorme tanning : (1.5 to 2% on weight) in chorme tanning bath improves the plumpness and grain tightness of cattle hides for shoe uppers.

ARITAN GSI LIQUID can be used in retaining of nappa leather sheep, goat, suede leather and for full grain or corrected grain hide.

CHEMICAL COMPOSITION
A Synthetic tanning agent with neutralizing & buffering properties.

Characteristics Chemical Nature : Blend of salt of aromatic sulphonic acids with buffering agents Appearance : Redish brown coloured clear liquid pH (as such) : 7.5 ± 0.5 Solids : 4 ± 1% Solubility : Soluble in water

Properties
ARITAN NG offers buffer system with a very uniform neutralizing effect even at fairly low pH value , a feature that promotes grain tightness. The risk of excessive neutralization is eliminated even with the addition of strongly alkaline neutralizing agent as the system is well buffered and pH does not increase drastically.

ARITAN NG forms complex salts with chrome tanning compounds. These complex salts than from chromium - protein complexes, which occupy a large space & thus produce leather of improved fullness. The affinity of the chromium complex for the skin is so pronounced that the chromium salt solution almost completely exhausted.

ARITAN NG is lightfast.
ARITAN NG gives level dyeing without weakening the dye intensity.
ARITAN NG improves dye penetration when used in the dye bath.
ARITAN NG facilitates economical one-bath compact processing Special effects can be obtained by incorporating large quantities of
ARITAN NG, e.g. in suede leather, for exceptional fullness & a very dense nap.

CHEMICAL COMPOSITION
Sulphonated high molecular hydrocarbons.

Chemical Properties Charge : Anionic pH : In 10% aqueous solution 7 to 8.5 Active Matter : 70% Appearance : Creamish White transculent Paste

Storage Conditions
Before use or sampling warm up and stir well.

Solubility
It can be diluted with equal part of water with AMARFAT ALP and Subsequently diluted with desired concentration.

Characteristics
AMARFAT ALP renders leather with good softness. It also generates good dye ability With glossiness, good suede brightness without greasy effect with good light fastness And waxy handle.

Application
AMARFAT ALP is used For many different types of SHOE UPPER LEATHERS. By selecting and adjusting the ratio of the individual components of a fatliquoring mixture Every type of softness and surface effect can be achieved In sole application a leather with relatively dry surface feel will be obtained with AMARFAT ALP. Recommended dosage are

• 5% for UPPER LEATHER (bovine)
• 5% for HANDBANGS NAPPA
• 5% for SHEEP GARMENT NAPPA

VEGETABLE BASED FATLIQUOR

CHEMICAL COMPOSITION
Sulfiled Vegetable Oil

Characteristics Appearance : Pale Yellow Liquid Active Matter : Approximately 65% Ionic Matter : Anionic pH OF 10% SOLUTION : 7.5 TO 8

Solubility : Forms milky white dilutable emulsion

Properties
On full penetration of emulsion leather gets very soft. ARIFAT - VG can be blended with other anionic or non ionic fat liquors for desired results.

Applications
Product is specially suited for uppers glowing , Garment lining and other light leathers .3 to 5% with other compatible fat liquors.