Quick Details
CAS No.:6428-31-5
Strength: 200%
MF: C34H27N13Na2O7S2
Appearance :Black Powder
Type: Direct Dye
Place of Origin: China
Usage: Leather Dyestuffs, Paper Dyestuffs,

Specifications
1) content of dyeing: 10%-30%;
2) viscosity: <3-7mPa;S;
3) surface tension: >50mN/m;939641645
4) PH: 5.0-10.0;
5) content of cl)<100ppm;
6) content of SO4: <100ppm-200ppm;
7) content of Ca: <50ppm-100ppm;
8) content of Mg):<20ppm-50ppm;
9) content of Fe: <10ppm.

Product Features:
1. Good solubility and leveling property;
2. Excellent black dye with little discoloration in the after-treatment;
3. Applicable for pad dyeing and dye with hydrogen peroxide;
4. Medium color fastness; applicable under high temperature and pressure.


Packaging detail:25kg/kraft bag, iron drum, carton, according to customers' requirement
Delivery detail:prompt delivery.