Leather Wet End Processing Chemicals
ARITAN A7
ARITAN A7 Anionic resin based filing
syntan for retanning of chorme and combination tanned leathers.
CHEMICAL COMPOSITION
Based on Nitrogen containing polymeric resin.
Characteristics |
Appearance |
: |
Free Flowing pale brown powder |
Concenrratton |
: |
95% (min.) |
pH (l:10) |
: |
9.5 + 0.3 |
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Properties
- Possesses selective filling property, leading to deposition in loose
structured and flat leather.
- Improves fullness of chrome leathers, besides grain tightening
resulting in maintenance, of chrome leather characteristic. No drawn
grain formation takes place due to non-astringent nature.
- Imparts level dyeing property and desirable buffing surface due to
resinous nature.
Application
- In clothing Nappa, during neutralization stage 4.0% ARITAN A7 is
added and subsequently further retanning is carried out with 2.0% ARITAN
A7 after neutralization.
- In upper leather, both full grain and corrected grain, during
neutralization stage. 3.5% ARITAN A7 after neutralization.
ARITAN AG50 LIQUID
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 |
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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.
ARITAN A540
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 |
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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.
Aritan Mxt Retanning Agent
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. |
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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.
ARITAN SM LIQUID
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 |
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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
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
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Compatability |
: |
Good with Anion-active, Non - ionic and
Cation - active substance |
Storage Stability |
: |
Good about 6 months |
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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
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 |
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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.
ARITAN NG
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 |
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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.
AMAR FAT ALP
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 |
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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
AMARLIX VG
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.