Direct Dyes Orange 39 for Paper Dyeing

Product Name: DIRECT ORANGE 39C.I. No.: 40215CAS No.: 1325-54-8Molecular Formula: C38H28N8O12S4.4NaMolecular Weight: --  Shade: bright red powder.  Direct Orange 39 Physical Properties and light fastness, solubility.                                             Direct Orange 39Dyeing depth %2Insolubles %0.15Light Fastness6-7Washing Fatness3Rubbing fastness(dry)4Rubbing fastness(wet)3DIRECT ORANGE 39 Properties and Applications: red light orange. Red brown powder. Soluble in water for golden brown, solubility of 50 g/L (60 ºC), 60 g/L (97 ºC), slightly soluble in alcohol. In the strong sulfuric acid as dark blue, orange for gold after diluted. The dye solution to join strong hydrochloric acid have yellow olive brown precipitation; Add thick sodium hydroxide solution have orange precipitation. Cellulose fiber of dyeing, in 80 ºC maximum when affinity, is suitable for the neutral, weak alkali dyeing. Hard to a little sensitive. In dyeing copper and iron ion colored light basic unchanged. Mainly used in viscose and viscose fabric dyeing and printing, Exhaust dyeing, printing and can be directly to white color, also can used for leather and paper shading, knitting fabric and carpet can be used and disperse dyestuff used for the high temperature dyeing polyester/stick blended fabric.Package, 25KG/DRUM, CARTON BOX, BAG  Note:  The data contained here are based on our current knowledge and experience. It is the responsibility of user to test our products before the final application.EXHIBITIONS PHOTOS:FACTORY PHOTOS:/* March 10, 2023 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(",").forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1