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Leather brightening and color-fixing agent

[Product introduction]

This product is a cationic polymers containing quaternary ammonium salts, which appearance is colorless to light yellow viscose liquid, freezing point:-2.8℃, specific weight:1.04g/cm3, resolve temperature 280-300℃. It can be used as leather wet processing agent, form complex with all kinds of anion dyestuff and combine the leather fabric to brighten the chrome tanned leather. It also can improve the waterlogging tolerance of the dyestuff, especially wash ability and perspiration.


Code KD3
Appearance colorless to light yellow viscose liquid
Solid content,% 40±1
pH 4.0-7.0
Viscosity(25℃),cps 7000-9000


This product is used in wet process of tannery as leather chemicals. It is stable in the solutions of formic acid, acetic acid and ammonia. Its function can be strengthened when it is in acid solution,which improves brighten and color-fixing effect. Besides, its flocculation settling in treating dyes wastewater can greatly reduce the residual dye in the wastewater and decrease the tannery's burden in wastewater treatment to protect environment.

Please first have a small test to confirm the correct method and dosage.

Reference method and dose: Normally, before dyeing, increase 0.5-1.0%, pH of staining solution should be 3-6. Increase appropriately and process color-fixing and oil-fixing When it is combined with the formic acid before finishing Fatliquor and color-fixing.

[Package & Storage]

  • 125kg PE Drum
  • Pack and preserve the product in a sealed, cool and dry condition, and avoid contacting strong oxidants.
  • The term of validity: Two years. Transportation: Non-dangerous goods.


(1)Your wise advice about our products will be appreciated to improve our qualities and services.

(2)There is no fixed pattern for application technology, therefore, the customer should base on your own technology and the equipment conditions to execute the program and utilize the product.

Posted in Textile dyeing auxiliaries on Apr 10, 2020

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