POWDER SYNTANS
Venus is one of the few manufacturers providing full range of solutions required in the Leather Industry.The following POWDER SYNTANS are offered:
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Re-chromingsyntan | Appearance: Green coloured free flowing powder % Moisture content: 5.0 max.Ionic charge. Anionic Solubility in Water: Readily soluble Stability to electrolytes: Very good pH of 10% solution: 3 ± 0.5 | In re-chroming it helps in maintaining chrome character of the leather with good fullness & softness.Re-chroming with Ventan RCS gives leathers a tight and fine grain.It increases the affinity of leather for dyestuffs and ensures level dyeing.It exhausts completely from re-chroming bath at elevated temperature. Due to its masked chrome complex nature, when used as pre-tanning agent, rapid penetration of pelt takes place and this facilitates acceleration of subsequent vegetable tanning process. | In general, 2 -4% (on shaved wt.) is applied priorto neutralizing.For pre-tanning, 1-2% (on pelt wt.) is applied after the pickle in the same bath.For chroming wet white leathers, 2-6% (on pelt wt.) is applied in combination with other tanning agents. | Product is stable for one year from date of manufacture, if stored at ambienttemperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Dye leveling and dispersing syntan | Appearance: Beige coloured powder % Moisture content: 5.0 max.Solubility in Water: Freely soluble pH of 10% solution: 7 ±0.5 | It is compatible with anionic and non-ionic products.It helps in getting very good dispersion of vegetable & resin tanning agents in retanning process.Suitable for use as leveling agent in dyeing leather with anionic dyes.It improves the penetration of dyestuffs. | The recommended dosage is 1-2 %, on shaved wt., for level dyeing and penetration of dye on chrome/vegetable tanned leathers. | Product is stable for one year from date of manufacture, if stored at ambient temperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Phenolic pre-tanning agent | Appearance: Yellow to light brown powder % Moisture content: 5.0 max.Solubility in Water: Readily soluble in water giving clear solution,pH of 10%solution: 3.5±0.5 | It accelerates penetration ofvegetable tannins.Produces bleaching effect with mellow handle.It has medium astringency, tans hides readily and evenly to produce tight, smooth, undrawn grain with pale colour.When used as retanning agent for chrome leather, it produces firm, smooth & resilient grain character. It bleaches leather colour without affecting chrome leather character. | For Vegetable tanning: Recommended dosage is 3-5%.For retanning chrome leathers: Recommended dosage is 1- 2% | Product is stable for one year from date of manufacture, if stored at ambient temperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Phenolic replacement syntan | Appearance: Light brown coloured powder % Moisture content: 5.0 max.Solubility in Water: Freely soluble pH of 10%solution: 3.5 ±0.5 | It is a phenolic general-purpose syntan for retanningof all leathers.Its use in retanning gives fuller leather and is suitable for retannage of light coloured leathers.It has self-tanning properties and can partly replace vegetable tanning agents during tanning.Itexhibits reasonably good light fastness. | The recommended dosage is 5 - 6 %, on shaved wt., for cow upper leathers.The recommended dosage is 2 - 3% in vegetable tanning.The recommended dosage is 4 - 6 %, on shaved wt., for suede & nubuck leathers The recommended dosage is 4 - 6 %, on shaved wt., for corrected grain leathers The recommended dosage is 2 - 8 %, on shaved wt., for pastel coloured leathers. | Product is stable for one year from date of manufacture, if stored at ambienttemperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Phenolic replacement syntan for white leathers | Appearance: White to creamish powder % Moisture content: 5.0 max.Solubility in Water: Freely soluble pH of 10% solution: 3.5 ±0.5 | It bleaches chrome leather to a clear and level white shade. The leather has a full handle with a tight and flatgrain.ts use as retanning agent gives good fullness, mellowness & fine grain break. It is compatible with all syntans and vegetable-tanning agents and when used along with vegetable tanning agents, many light coloured leathers are obtained.It has full self-tanning properties.It has reasonably good light fastness properties | The recommended dosage is 5 - 6 %, on shaved wt., for white upper leathers.The recommended dosage is 2 - 3% for pretreatment of leathers to be retanned with vegetable tannins.The recommended dosage is 5 - 8 %, on shaved wt., for drum dyed shoe upper/Nubuck. | Product is stable for one year from date of manufacture, if stored at ambient temperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Amphoteric replacement syntan | Appearance: Pale yellow coloured powder % Moisture content: 5.0 max.Solubility in Water: Freely soluble in water giving clear to slightly hazy soln.pH of 10%solution: 3.5 ±0.5 | It being amphoteric, can be used at both lower and higher pH. It gives good softness and fullness without loading the leather.It improves the evenness of grain in milling.Its use in retanning facilitates brilliant dyeing shades.It can be used in combination with synthetic, vegetable and chrome tanning agents. | The recommended dosage is 2 - 3 %, on shaved wt., for upper leathers in re-chroming.The recommended dosage is 6-8 %, on shaved, for furniture leather The recommended dosage is 4 - 8 %, on shaved wt., for sheep & goat garment nappa eather. | Product is stable for one year from date of manufacture, if stored at ambient temperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Resin syntan based on melamine | Appearance: Light brown coloured powder % Moisture content: 5.0 max.Solubility in Water: Partly soluble in water. Solution is hazy with sediments.pH of 10% solution: 7±1 | Its use in retanning gives good fullness, softness and elasticity to leather.It improves buffing properties of leather. It levels dyeing and helps the dyestuff to penetrate.It is compatible with all syntans except aluminum tanning agents. It reduces the formation of large particles in vegetable extracts. | The recommended dosage is 3 - 5 %, on shaved wt., for softy & garment leathers.The recommended dosage is 4 - 5 %, on shaved wt., for upper leathers.The recommended dosage is 5 - 6 %, on shaved wt., for corrected grain upper leather.The recommended dosage is 3-4 %, on shaved wt., for nappa leathers. | Product is stable for one year from date of manufacture, if stored at ambienttemperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Melamine based resin syntan completely soluble in water | Appearance: Light brown coloured powder % Moisture content: 5.0 max.Solubility in Water: Freely soluble in water forming clear solution pH of 10% solution: 7±1 | Its use in retanning gives good fullness, softness and elasticity to leather.It improves buffing properties of leather. It levels dyeing and helps the dyestuff to penetrate.It is compatible with all syntans except aluminum tanning agents. It reduces the formation of large particles in vegetable extracts. | The recommended dosage is 3 - 5 %, on shaved wt., for softy & garment leathers.The recommended dosage is 4 - 5 %, on shaved wt., for upper leathers.The recommended dosage is 5 - 6 %, on shaved wt., for corrected grain upper leather.The recommended dosage is 3-4 %, on shaved wt., for nappa leathers. | Product is stable for one year from date of manufacture, if stored at ambient temperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Anionic resin syntan based on DCDA | Appearance: Light brown coloured powder % Moisture content: 5.0 max.Solubility in Water: Partly soluble in water with sediments.pH of 10% solution: 10 ± 1 | Its use in retanning helps in filling empty parts of leather. Its use in retanning gives good fullness & grain tightness with intense dyeing shades.The leather has a round & medium soft handle. Loose structured wet blue get more filling in flank, belly area.Its use in retanning improves buffability of leather. | The recommended dosage is 4 - 5 %, on shaved wt., for upper leathers.The recommended dosage is 2-4%, on shaved wt., for garment leather. | Product is stable for one year from date of manufacture, if stored at ambient temperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Acrylic retanning agent based on maleic acrylic co-polymer, sodium salt | Appearance: White free flowing powder % Moisture content: 5.0 max.Solubility in Water: Freely soluble in water pH of 10% solution: 8 ± 0.5 | It is very much suitablefor upholstery leathers. Retanningwith Ventan MA helps withstand wet toggling.Its use in retanning improves plumpness of leather.It exhibits good selective filling properties & light fastness. | For retanning of Upholstery leather 3 -5 % after eutralization, before retanning/dyeing/ fatliquoring.For retanning of Cow/Buffalo Softy leather 4 -5% for getting soft 8i mellow feel with very good grain tightness, after neutralization & before retanning.For Glazed articles 3-4% after neutralization, before retanning / dyeing /fatliquoring.For Cow/Sheep/Goat Nappa Leather 3-5% after neutralization, before retanning/dyeing/ fatliquoring. Ventan MA powder can be readily dissolved in water to desired concentration levels of 30% to 40% depending on required viscosity of resultant liquid. It can also be blended with other compatible syntans for special effects. | Product is stable for one year from date of manufacture, if stored at ambienttemperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Phenolic neutralizing syntan | Appearance: Pinkish powder % Moisture content: 5.0 max.Solubility in Water: Readily soluble in water pH of 10%solution: 7.5 ±0.5 | Especially suitable for neutralization during leather processing for production of soft leathers. It's strong buffering action avoids excessive neutralization.It's use gives dye leveling effect.Due to its stability to electrolytes, it can be used in compact process of leather manufacturing.It gives excellent grain smoothness due to its non-astringent nature. | Neutralization of Shoe upper leather : Recommended dosage is 1 - 3% Ventan PNS powder on shaved wt.In compact process for cow upper : Recommended dosage is 3 - 4% Ventan PNS powder on shaved wt. | Product is stable for one year from date of manufacture, if stored at ambienttemperature in supplied packing. |
| PRODUCT DESCRIPTION | CHARACTERISTICS | SPECIAL FEATURES | APPLICATION | STORAGE STABILITY |
|---|---|---|---|---|
| Naphthalene based neutralizing syntan | Appearance: Light brown coloured powder % Moisture content: 5.0 max.Solubility in Water: Freely soluble in water.pH of 10% solution: 8± 0.5 | Due to its low alkalinity, it does not affect chrome complex in neutralizing free acidity of leather.Due to its composition, it shows good buffering action and ensures safe neutralization giving uniform pH throughout entire cross-section of leather.It's use in neutralization of chrome tanned leathers results in lowering of cationic charge of the surface. This facilitates subsequent dyeing and fatliquoring operations It improves the penetration of dyestuffs and does not bleach the colour. | The recommended dosage is 2-3%, on shaved wt., for shoe upper leathers.The neutralization pH can be adjusted with all other suitable alkalis.The recommended dosage is 1 - 2% on pelt wt. for basification. | Product is stable for one year from date of manufacture, if stored at ambient temperature in supplied packing. |
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Frequently Asked Questions
Find answers to common questions about our products and services
Syntans are synthetic tanning agents used in leather processing to improve fullness, softness, and dye receptivity. They enhance leather quality, provide better grain characteristics, and improve the overall properties of finished leather products.
Liquid syntans are ready-to-use solutions that offer convenience and easy application. Powder syntans require dissolution but offer longer shelf life and can be customized for specific applications. Both provide excellent tanning and filling properties.
Syntans improve leather fullness, softness, grain tightness, dye receptivity, and overall quality. They help produce high-quality leather goods with consistent properties and enhanced performance characteristics.
Leather processing involves various chemicals including beam house chemicals (for soaking, liming, and bating), syntans (for tanning and filling), fatliquors (for softening and conditioning), dye fixers (for color stability), and finishing chemicals (for final treatment and protection). Our comprehensive range covers all stages of leather processing from raw hide to finished leather.
Fatliquors are essential chemicals used to impart softness, flexibility, and durability to leather. They lubricate the leather fibers, prevent brittleness, and ensure the leather remains supple and comfortable. Our fatliquors are formulated to provide optimal softness while maintaining leather strength and quality.
Dye fixers are chemicals that improve the stability and fastness of dyes on leather surfaces. They help prevent color bleeding, improve color uniformity, and enhance the resistance of dyed leather to water, light, and rubbing. This ensures vibrant, long-lasting colors in finished leather products.
Beam house chemicals are used in the initial stages of leather processing, including soaking (to rehydrate hides), liming (to remove hair and flesh), and bating (to remove lime and prepare for tanning). Our beam house chemicals effectively remove impurities, condition the material, and prepare hides for the tanning process.
Yes, we are committed to environmental sustainability and offer leather chemicals that comply with international standards. Our products are developed with a focus on reducing environmental impact while maintaining high performance. We provide solutions that help tanneries meet regulatory requirements and sustainability goals.
Our finishing chemicals include products for final leather treatment that enhance appearance, feel, and resistance to wear and environmental factors. These include surface treatments, protective coatings, and specialty finishes that improve leather aesthetics and durability for various end applications.
Yes, as a leading leather chemicals manufacturer, we offer custom formulations tailored to specific tanning processes and end-product requirements. Our technical team works with tanneries to develop solutions that meet their unique processing needs, quality standards, and performance requirements.
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