Disperse Blue BGL

Preparation

Anthracene-9,10-dione stlfonation, Hydrolyzed with sodium hydroxide, sulfonated with fuming sulfuric acid, nitric acid, sulfuric acid nitration, with sodium sulfide, and boric acid, phenol, Benzaldehyde?, the addition of sulfuric acid translocation, with hydrosulfite desulfonation.

Properties and Applications

bright blue. Dark blue powder. Soluble in ethanol and acetone. In dye in bath of iron, copper ion to the colored light have influence. With the appropriate pH value for bath 3 ~ 9, in dyeing and printing of its ability. The dyes bright light, and the fastness is good, can dye shallow, middle and dark, hot and solid color temperature range is wide, dyeing temperature less effect. With high temperature and high pressure dyeing, even dye the gender is poorer. In the vinegar, polyamide fiber on dyeing, its color and polyester similar, but color rate is low. But in the polyester/cotton blended fabric printing directly, cannot be printing the impression of the discharge.