522 Sulphur black br 220% is insoluble in water. Sodium sulfide or other reducing agent is needed to reduce the dye to soluble leuco body.

522 sulphur black br 220% has an affinity for fibers and dyes the fibers, and then restores its insoluble state after oxidation and color development and is fixed on the fibers.

So sulphur black dye is also a kind of vat dyes.

Sulphur black dye can be used for dyeing cotton, linen, viscose and other fibers, and has good light fastness.

Producing sulphur black br dye for more than 26 years, Cangzhou Xincheng Weiye Chemical Co., Ltd has mature technology, advanced equiment and strict quality control system.

Our sulphur black br quality is from 200%-240% with bright shade and reliable quality. Welcome your inquiry.

Contact person: Miss Jessie Geng

Email:jessie@xcwychem.com

Mobilephone/Whatsapp: +86-13503270825