Factory wholesale Direct Fast Black Vsf - Offer Direct Fast Black G From Manufacturer –

Synonyms:C.I. 35255; C.I. Direct Black 19; C.I. Direct Black 19 (VAN); C.I. Direct Black 19, disodium salt; Direct Fast Black G; C.I.Direct Black 19; disodium (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonate; (3E)-5-amino-6-[(E)-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}diazenyl]-3-(2-{4-[(E)-(2,4-diaminophenyl)diazenyl]phenyl}hydrazinylidene)-4-oxo-3,4-dihydronaphthalene-2,7-disulfonic acid; Direct Black

Appearance:Black powder.

Density:1.727g/cm3

Solubility:The water solubility is very good.

Application:Direct tanning G is one of the main black dyes. It is mainly used for dyeing and direct printing of cotton and viscose fibers, interwoven cotton and viscose fibers with silk and wool, and blended fabrics. It is mainly dyed in black, and gray and black are widely used for printing. It can also be combined with brown dyes to form coffee and other colors with different depths, and a small amount is used for color matching light to increase chromatography. When dyeing wool viscose fiber blended fabric, it can be dyed in the same bath with neutral black BRL to obtain uniform color. It can also dye polyester viscose blended fabrics in the same bath with disperse dyes. The dye uptake is good and the migration is slightly poor. After dyeing, it can be treated with color fixing agent y and color fixing agent M, but the color light is slightly green. Finishing with urea formaldehyde resin can not change the color light, but also improve the fastness to wet treatment.
Quality guarantee period: 24 months.
Packing: 25kgs iron drum.
Storage:Store in a cool and ventilated room and prevent moisture and heat.