METHOD FOR DYEING OF TEXTILE MATERIAL FROM CELLULOSE FIBER Russian patent published in 1995 - IPC

FIELD: textile industry. SUBSTANCE: textile material from cellulose fiber is impregnated with aqueous solution containing, g/l: vat dye 2-5; triethanolamine 5-10; polyphosphate 2-3, and reduction catalysts in form of derivative of ferrocene taken from the group: monoacetylferrocene, diacetylferrocene and sodium salt of o-carboxybenzoylferrocene 0.005-0.100. Material is treated with alkali reducing solution and subjected to steaming, oxidation and washing. Dyeing quality characteristics: light fastness 3-4 points, International Standard 105-B 02; dry-wet-rub fastness 3-5 points, GOST 9733,27- 83. Fixation of dye is 106-108%. EFFECT: higher efficiency. 2 dwg