Dyeing formulations of mixtures of red disperse dyes for the was

Details Dyeing formulations of mixtures of red disperse dyes for the was Dyeing formulations of mixtures of red disperse dyes for the was

1988-09-01

1989-10-10

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Dye or potential dye composition, additive, treatment,...

Mixed dyes, noncomplexed

8639, 8532, 8922, 8933, C09B 2308, C09B 6722, D06P 354

Patent

active

048728829

ABSTRACT:
Dyeing formulations in solid or liquid form, containing one or more red disperse dyes of the general formula (1) ##STR1## where R.sub.1 denotes an alkyl group of 1 to 4 carbon atoms, and one or more red disperse dyes of the general formula (2) ##STR2## where R.sub.2 and R.sub.3 denote independently of each other the group --CH.sub.2 --CH.sub.2 --CH.sub.2 --COOCH.sub.3 or --CH.sub.2 --CH.sub.2 --CH.sub.2 --COOC.sub.2 H.sub.5 and R.sub.4 denotes a hydrogen, chlorine or bromine atom or a methyl group, one or more anion-active or nonionic dispersing agents and optionally water, wherein, based on the mixing ratio of the pure dyes to one another, the dyes of the formula (1) are present in a proportion of 15 to 85 percent by weight and the dyes of the formula (2) in a proportion of 85 to 15 percent by weight, and wherein the dyes have been brought into a state of extremely fine division by conjoint or separate wet grinding in the presence of a dispersing agent, and the use thereof for dyeing or printing polyester fibers or mixtures of polyester and cellulose fibers.

REFERENCES:
patent: 4115404 (1978-09-01), Greenhalgh et al.

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