Process for dyeing acid-modified polyester fibers

Details Process for dyeing acid-modified polyester fibers Process for dyeing acid-modified polyester fibers

D - Textiles, Paper

06

P

8/26

D06P 3/52 (2006.01) C09B 44/20 (2006.01) D06P 5/20 (2006.01)

Patent

CA 1043513

ABSTRACT OF THE DISCLOSURE A process for dyeing acid-modified polyester fibers comprising contacting the fibers with a dye bath containing a thiazoleazo-type cationic dye of the formula (I), Image (I) wherein R1 and R2 each is a methyl group or an ethyl group, A and B each is a benzene nucleus which can be substituted with a methyl group, an ethyl group, a methoxy group or an ethoxy group; and X.theta. is an anion. The cationic dye compounds of the formula (I) dye acid-modified polyester fibers a bright blue shade and with good light fastness.

219639

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