Tracid Brilliant Red 10b

Preparation

2,4-Bis(o-tolyloxy)benzenamine?diazo, and 4-Amino-5-hydroxynaphthalene-2,7-disulfonic acid?coupling, then use 4-Methylbenzene-1-sulfonyl chloride acylation.

Properties and Applications

red light purple red to blue light. Blue-ray red in the sun, the product for red light purple to blue light purple, good levelness, discharge sex medium. Copper, iron ion in the dark, encounter chromium ion unchanged. Mainly used for wool, tops, wool/stick blended fabric, polyamide fiber and its silk products dyeing and printing directly, also can used for leather color.