Dynasty Chemicals (NingBo) Co., Ltd.
Sulphur dyes are inexpensive dyes used to dye cotton with dark colors. Dyeing is effected by heating the fabric in a solution of an organic compound, typically a nitrophenol derivative, and sulphide or polysulfide. The organic compound reacts with the sulphide source to form dark colors that adhere to the fabric. Sulphur Black 1, is our largest selling sulphur dye by volume.