SOLVENT BLACK 5 CAS 11099-03-9

Nigrosine is an important raw material for chemical synthesis in dye industry. For a long time, the cotton printing and dyeing factory directly dyed with aniline, and oxidized the cotton fiber to obtain the original color cloth with strong black light and excellent quality. Aniline black is also used in cotton printing, whether it is direct printing cloth or anti-dyeing printing cloth, aniline is lower in cost than dyes, and the color is black, washable and lightfast. It was one of the main production processes in the 1950s.