Direct Blue B6

Direct Blue B6

By using a sound small business credit, excellent after-sales provider and modern producing facilities, now we have earned an exceptional track record between our clients across the whole world for Chinese wholesale China Direct Blue B6, Our really specialized process eliminates the component failure and offers our shoppers unvarying top quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
Chinese wholesale China Direct Blue,  Direct Blue B6, Custom orders are acceptable with different quality grade and customer's especial design. We're looking forward to establish the good and successful cooperation in business with long terms from the customers of all over the world.

Direct Blue B6 is a dark blue powder, which is turbid to navy blue when dissolved in water. Direct Blue B6 is slightly soluble in ethanol and cellosolve, but insoluble in other organic solvents. It is a kind of direct dye. Direct dyes are dyes that can be heated and boiled in neutral and weak bond phase media without the help of mordants. They are dyed by virtue of the hydrogen bond and van der Waals force between the direct dye and cotton fiber. The main application is It is used in fiber, silk, cotton spinning, leather and other industries, as well as in papermaking and other industries.

Other product names: Direct Blue 2B

C.I.: Direct B-6

CAS Number: 2602-46-2

Molecular formula: C32H20N6Na4O14S4

Molecular weight: 932.77

EINECS number: 220-012-1

Appearance: Blue Powder

Strength: 100%

Physical properties of Direct Blue B6:

Direct Blue B6 turns bright blue when exposed to concentrated sulfuric acid, and turns purple to reddish blue after dilution. Direct Blue B6 dyes cellulosic fibers. The dye has good exhaustibility, and the temperature is 60-80℃. Good discharge performance. Dibenzidine is obtained by coupling with H-acid after diazotization. It is mainly used for dyeing cotton, glue fiber and silk fabrics. Also used for the dyeing of pulp and biology

Wide application of Direct Blue B6:

1) Direct Blue B6 can be applied to the dyeing of cotton, viscose fiber and silk fabric;

2) Direct Blue B6 can be used for the dyeing and printing of viscose silk fabrics, as well as for the dyeing of viscose fabrics, cotton knitted fabrics and hank silk, but it must not be dyed in dark colors and must be treated with a fixing agent after dyeing .

3) Direct Blue B6 can be applied to the dyeing of leather and paper and the coloring of soap and detergent.