Process for dyeing cotton with reactive dyes in weakly alkaline

Bleaching and dyeing; fluid treatment and chemical modification – Multiple chemically diverse fibers or fibers with different... – Polyester fiber and cellulose fiber

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8549, 8618, 8918, D06P 167, D06P 366

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active

044089970

ABSTRACT:
Cellulosic fabrics may be dyed by cold-dyeing reactive dyes under weakly alkaline conditions (0.2-1 g/l soda) at 60.degree.-80.degree. C. in the presence of moderate amounts of salt. This is advantageously used for the dyeing of mixed cotton/polyester substrates in a one-bath process with a mixture of reactive and disperse dyes.

REFERENCES:
patent: 3497309 (1970-02-01), Seltzer
patent: 3617168 (1971-11-01), Mack
patent: 3617169 (1971-11-01), Schulz
patent: 3767356 (1973-10-01), Turner
patent: 3807945 (1974-04-01), von der Eltz
patent: 4264321 (1981-04-01), von der Eltz
patent: 4277246 (1981-07-01), Lehinant et al.
patent: 4283193 (1981-08-01), Hildebrand
K. H. Hoppen, Dyers Digest, Jan. 1981, pp. 3, 4, 7 and 9.

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