Indigo powder bleu powder reducing dye

Short Description:

It is a kind of bleu powder reducing dye, and is the initial product of indigo. It is produced by stoving the filter cake from the former section. It is insoluble in water, ethanol and ethyl ether, but soluble inmelt benzoyl oxide. Itis mainly used in the dyeing and printing of cotton fiber, and is the special dye for jean fabric. It can also be processed into food dye and biochemical agent.