Sulphur Rotbraun B3R Dye

Sulphur Red-brown B3R 1. Physicochemical Property: Purple-brown powder. Water slight insoluble. Soluble in sodium sulfide solution, show red- brown to brown. Turn dark blue-purple in concentrated sulfuric acid. Show brown sediment after diluted. 2.Quality Standards Index name Index Appearance Yellow-brwn powderColour Similar Intensity100±3 to standard productsMoisture content %≤5% Impurities insoluble in Na2S %≤1.5% Freevulcanization content %≤5% Fastness dyes on cotton fabricStandard compliant3. Package: 40kg Woven bag with plastic bag underneath. 4. Uses: Mainly used for cotton, jute, viscose and vinylon & cotton blend’s dyeing. Mainly used for getting all kinds of coffee colours with red light. Always as three original colours with Sulphur Yellow-brown 5G and Sulphur Blue BN, can get all kinds of grey, camel, light brown colours ect. Most fit for corduroy fabric’s dyeing. Can also get light grey and straw yellow with Sulphur Blue. Sometimes used for leather’s dyeing. 5.Application performance SunlightSoap washingIn waterIn perspirationIroningRubbingColourfadedTransferofcolourColourfadedTransferOfcolourColour faded Transfer of colourDry Wet 3-42-32-344-5 4 443-42-3 Sulphur Red-brown B3R Dye