Item

Grade

Appearance

black-brown powder

Colourity and brightness

the same as standard

Strength(point)

100;the same as standard

Content of water %

≤5

Content of impurity  which is non-soluble in water,%

≤1

Fineness of remainders not passing through 80 sieve, %

≤5

Strength of dying on the woolen materials

to meet the standard

Packing: In container of about 25,30,35 or 60kg.

Uses: Used for woolen materials, natural silk, nylon.