OEM/ODM China Direct Red 31 - Manufacturer of Direct Pink 12B –

Synonyms:C.I.Direct Red 31; Disodium 7,7′-iminobis(4-hydroxy-3-(phenylazo)naphthalene-2-sulphonate); Direct Pink 5B; 2-Naphthalenesulfonic acid, 7,7′-iminobis(4-hydroxy-3-(2-phenyldiazenyl)-, sodium salt (1:2); 2-Naphthalenesulfonic acid, 7,7′-iminobis(4-hydroxy-3-(2-; EINECS 225-669-8; 2-Naphthalenesulfonic acid, 7,7′-iminobis(4-hydroxy-3-(phenylazo)-, disodium salt; disodium (3E,3′E)-7,7′-iminobis[4-oxo-3-(2-phenylhydrazinylidene)-3,4-dihydronaphthalene-2-sulfonate]

Appearance:Reddish brown fine powder.

Application:Direct Pink 12B is the main red dye, which is widely used in the dyeing and printing of cotton and viscose fabrics, as well as silk and viscose interwoven fabrics. It has good migration and levelness, and high dye uptake. It can also be used for dyeing silk, vinylon fabrics and direct printing of silk fabrics. When it is used for blending cotton, viscose and other fibers, the color of silk is slightly lighter, wool and nylon can be dyed, diacetate fiber is stained, and polyester and acrylic fiber are slightly stained.
Quality guarantee period: 24 months.
Packing: 25kgs iron drum.
Storage:Store in a cool and ventilated room and prevent moisture and heat.