 Home > Encyclopedia > C.I. Sulphur Brown 4

C.I. Sulphur Brown 4

C.I. Sulphur Brown 4 structure

CAS No:
1326-90-5
Chemical Name:
C.I. Sulphur Brown 4
Synonyms:
C.I. Sulphur Brown 4;C.I. 53210;Diresul Brown G;Diresul Brown R;Pirocard Brown CGN;Sofral Brown CGN;Sofral Dark Brown CRN;Sulfanol Olive TR;Thiocutch 2JS;Thiocutch JRS;Thionol Black Brown R
Categories:
Dyes and Pigments > Dye

C.I. Sulphur Brown 4 Use and Manufacturing

Methods of Manufacturing

Using mixed cresol (or m-cresol, p-cresol) as raw materials, the mixed cresol (or m-cresol, p-cresol) and sodium polysulfide are baked at 270-755℃. Copper sulfate can be added or not. The finished product is obtained after crushing.

Uses

The vulcanized dark brown GN is mainly used for dyeing cotton, hemp, viscose fiber and its fabrics, and also for the dyeing of vinylon and vinyl cotton blended fabrics, with poor level dyeing. It is also used for dyeing dark brown.

Material

Copper sulfate