CAS No.: 1326-82-5
Environmental Protection: Yes
Sulphur Dyes Sulphur Black 1 for Cotton Fabric Dyeing1.DescriptionSulphur black can be classified as BR (Bluish-Reddish) and B(Bluish)by their different tones, and the tone and quality can be adjusted according to the customer's requirements.Appearance: Flashing black flakes or granulesProduct character: Sulphur black is insoluble in water or ethanol, it appears as green-black in the solution of sodium sulfide, appears bluish when put caustic soda in the solution of sulphur black, and appears greenish precipitate with hydrochloric acidIt's miniature soluble in cold sulfuric acid, turns to greenish blue precipitate after it's warmer, then turns to black-blue when keeps heating. Sulphur dyes have good dye-uptake and level dyeing.2. Main featuresA, Strength 200%(full).B, Standard greenish and reddish toneC, Can be dissolved directly in water without adding any sodium sulfide.D, Most environmental protective dye used in the dyeing of paper.3.Specification:Sulphur Black BR SpecificationDyes nameSulphur Black BR Quality200%,220%AppearanceBlack granuleColor Same as StandardStrength200%,220%Moistureless than2.9%Content of sodium sulfide-insoluble matterless than 0.6%Free sulphur0.31%Degree of fineness (screening hangover content by 80 um),% less than3%3.Product Application:Sulphur black dye are widely used for dyeing and winding dyeing on cotton, jute, viscose, polyvinyl alcohol fibre and polyester, polyamide fibre, specially used for rolling dyeing.4.Sulphur Black Packing and Loading :(1) Packing: 25kg/bag , or 25kg/Drum .(2) Loading quantity :800bags/20'container , 20MT/20'container .(3) Loading quantity :640drums/20'container , 16MT/20'container .