3-Amino-4-hydroxybenzenesulfonamide diazo, and Naphthalen-2-ol coupling, and then use cobalt chloride is transformed into 1:2 cobalt complex.
Properties and Applications
dark blue light red. Apply to polyamide, wool, silk and their blended fabric dyeing and printing, mainly for the dye shallow color, can be used for dyeing light color car seat, carpet of dyeing and printing. It has excellent resistance to sun levelness and color fastness, has a good spell of color, reproducibility and colored light stability.
