Vinyl monomer polymer
In the late pickling period, it is added into the pre-twisting, which has good self-tanning effect on the skin blank, and has certain auxiliary effect on the subsequent chrome tanning of the same bath, can increase the absorption and combination of the chrome tanning agent, and reduce the trioxide in the chrome tanning waste liquid. The content of dichrome improves the physical and mechanical properties and shrinkage of each top of the blue wet leather; it also has the same application characteristics in the chromium retanning process. Used for retanning of blue wet leather, the surface of the billet is smooth and fine, the grain is clear, the leather body is full, soft and elastic, and the difference is narrowed. Since the molecular properties of the tincture are not affected in the bath of pH 3.8-65, it can be used before, during and after neutralization, and after dyeing and oiling, and can be completely penetrated and combined in leather fibers, especially in In the process of dyeing and refueling after retanning, it helps to eliminate the phenomenon of dyeing and discoloration.
Appearance Light yellow transparent liquid
Effective (%) 30±2
pH (10% aqueous solution) 5.0-7.0
Pre-tanning of chrome-leaching chrome: 2%-4% blue wet leather retanning: 3%-5%
Packaging and transportation
Packed in 125Kg plastic drums, non-dangerous goods, to prevent exposure or freezing, shelf life of one year.