Retanning Agent


Functional Syntan Agent

Physical & Chemical Data:

Appearance:         Light yellow powder

Content/%:            93.0

pH (10%):              3.0~5.0

Charge:                 Anionic


lDOWELLTAN ST61 has an excellent dispersing effect. It can promote the dispersing and permeating of acrylic polymer, vegetable and resin tanning agent.

lDOWELLTAN ST61 lets the leather obtain a compact fine grain, softness and fullness feeling.

lDOWELLTAN ST61 has  good levelling property.

lIf it is used in fatliquoring, it can promote the penetration and absorption of fatliquor, can reduce the greasy feeling caused by fatliquor.

lUsed for retanning and filling of wet blue, the leather can obtain a good buffing properties, it is very suitable for the production of suede leather.

lGood light resistance.


lWe suggest use it after retaining. It can be used with vegetable and resin tanning agent.

lSuitable for the production of leather such as shoe upper leather, sofa leather and garment leather.

lSuggested dosage is 2-6% based on shaving weight.

lIt contains trace amounts of formaldehyde, please decide the dosage according to the formaldehyde limit requirements of leather.


       15KG kraft paper bag


1 year storage in sealed original package at 5-35℃. Bags should be tightly resealed each time after material is taken from them, and their contents     should be used up as soon as possible after they have been opened.