OEM/ODM China Direct Red 31 - Offer Direct Black EX At Good Price –

Synonyms:disodium 4-amino-3-[[4'-[(2,4-diaminophenyl)azo][1,1'-biphenyl]-4-yl]azo]-5-hydroxy-6-(phenylazo)naphthalene-2,7-disulphonate;C.I. 30235; C.I. Direct Black 38; C.I. Direct Black 38, disodium salt; C.I. Direct Black 38, disodium salt (8CI); Azo black; disodium (3Z)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate; disodium (3E)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonate; (3E)-5-amino-6-[(E)-{4'-[(E)-(2,4-diaminophenyl)diazenyl]biphenyl-4-yl}diazenyl]-4-oxo-3-(phenylhydrazono)-3,4-dihydronaphthalene-2,7-disulfonic acid

Appearance:Black powder.
Density:1.61g/cm3

Application:
It is mainly used for dyeing cellulose fibers and fabrics such as cotton, hemp and viscose, as well as silk, nylon and their blended fabrics. It can also be used for chemical Book dyeing of leather, biology and wood, coloring of plastics and raw materials for red ink. Direct black BN is a common black dye, which is mostly used alone for black, and often combined with brown to form various coffee colors.
Quality guarantee period: 24 months.
Packing: 25kgs iron drum.
Storage:Store in a cool and ventilated room and prevent moisture and heat.