Tanning & Retanning

We have a wide range of tanning, neutralizing and retanning products. Tanning and retanning agents in liquid or solid form with excellent properties.

Mineral

 

Consolidates the fibber structure, and gives a tighter and smoother grain, good filling.
Better response to dying, improving the intensity and evenness of dyes.

Syntans

 

Retanning products based on synthetic polymers.
Used to fill and compact the empty and frayed structures of the leather, giving good fullness in flanks and bellies.
Improve adhesion, elasticity, fibre compaction and buffing.
Special to get closer structure and short plush. They are suitable to avoid grain looseness in the leather to be milled.
Special for white leathers. All products have good light fastness.

Vegetal extract

 

Pre-tanning, tanning, re-tanning.
Excellent tanning, retanning and filling power in all parts of the leather, getting the maximum uniformity. Depending on the selected product and the used quantity, ± compact, +full or +hard leather will be obtained.
Suitable for all kind of articles when we require full, compact, round, smooth leathers. They consolidate the fibre structure, and give a tighter and smoother grain, good filling.
Better response to dying, improving the intensity and evenness of dyes.
All products in the range are completely soluble in hard water at 40-45ºC.
All products in the range are 100% natural, formaldehyde free (0%) and 100% biodegradable.

Synthetic Polymers

 

Retanning products based on synthetic polymers.
Used to fil and compact the empty and frayed structures of leather, giving good fullness in flanks and bellies.
Improves adhesion and fibbers compaction. Elasticity. Improves the buffing.
Special to get closer structure and short plush. They are suitable to avoid grain / oseness in the leather to be milled.
Special for white leathers. All products having good light fastness.

 

Natural Polymers

 

Retanning and filling products based on bio-polymers as alternative to conventional resins like dicyandiamide and melamine.
Used to fill and compact the empty and frayed structures of the leather, giving good fullness in flanks and bellies.
Improve adhesion, elasticity, fibre compaction and buffing.
Special to get closer structure and short plush. They are suitable to avoid grain looseness in the leather to be milled.
Special for white leathers. All products are 100% natural, biodegradable and formaldehyde free (0%).

 

Neutralizing, Dispersing

 

Due to their buffering properties they prepare the leather to accept the following retanning agents and lead to a progressive, moderate, uniform and effective neutralisation, getting an optimal pH to work with retanning agents, fatliquors and dyes.
Neutralizing agents with buffering and soft de-acidifying effect, reducing the affinity of retanning agents, protecting the grain against overtannage and giving smooth and tight grain, no-looseness, fullness.
They reduce de cationic character of wet-blue and wet-white leathers and facilitate the penetration and dispersion of anionic retanning products without causing any astringency or losing any physical property.
Improve the fat dispersion used in the fatliquoring bath.
They can be used in dying when dyes dispersing is required and also to achieve bright color dyes and increase the shades.

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