摘要:
A process for dyeing acid-modified polyester fibers comprising contacting the fibers with a dye bath containing a thiazoleazotype cationic dye of the formula (I);
wherein R1 and R3 are each a C1 - C2 alkyl group, R2 is a hydrogen atom, a C1 - C2 alkyl group or a C1 - C2 alkoxy group, R4 is a hydrogen atom or a C1 - C2 alkyl group, R5 is a hydroxyl group or a C1 - C2 alkoxy group, and X is an anion. The dye compounds of the formula (I) dye acid-modified polyester fibers a bright shade and with good light fastness. The dye compounds of the Formula (I) wherein R2 is a hydrogen atom or a methoxy or ethoxy group are novel dye compounds.
摘要:
Novel compounds of the formula WHEREIN X is morpholino or alkanolamino and M is a hydrogen atom or an alkali metal, useful as optical brightening agents, and process for the production thereof, whitened textile materials and process for production thereof, and whitened and resinfinished textile materials and process for production thereof.
WHEREIN R IS HYDROGEN ATOM OR METHYL GROUP; AND M IS SODIUM OR POTASSIUM HAVING A PARTICLE SIZE OF ABOUT 1X2U WHICH IS PREPARED BY PULVERIZING SAID CRYSTALS IN THE PRESENCE OF ALKALINE PHOSPHATES AND/OR ALKALINE SILICATES OR IN THE PRESENCE OF ALCOHOL, ESTER, KETONE, HYDROCARBON OR A MIXTURE THEREOF.