It is black scale, red shade, the shade is crresponding to standard, mainly used for cotton textiles dyeing, also used in dyeing on cambric, viscose and vinylon insoluble matter in sodium sulphide is 0.7%max, the free sulphur content is 0.5%max.
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Hebei Jiyou Import and Export Trade Co., Ltd is an import and export trading company engaged in selling and acting for varies prodtcs and technologies. We are manufacturer and supplier of sulfur dyestuff in dye industry.Sulfur black dyes can be devied into:sulfur balck B(green light), BRN(green red light),RN(red light),BN double,BRN double,etc.
