Method of dyeing cellulose fibers by anionic dyes, compound for

Details Method of dyeing cellulose fibers by anionic dyes, compound for Method of dyeing cellulose fibers by anionic dyes, compound for

1980-07-28

1982-05-25

Tungol, Maria Parrish

Bleaching and dyeing; fluid treatment and chemical modification

Acylating agent or cross-linker dye additive, composition,...

Pretreatment of substrate

8541, 8529, 8606, 564285, D06P 1645, C07C 8730

Patent

active

043314414

ABSTRACT:
Compound for use in the dyeing of cellulosic fibers by anionic dyes, method of making such compound and method of dyeing involving the use of such compound. The compound has the general formula ##STR1## wherein R.sub.1 and R.sub.2 are alkyls with 1-3 carbon atoms, R.sub.3 is alkylene with 1-2 carbon atoms, R.sub.4 is a hydrogen atom or an alkyl with 1-2 carbon atoms, and X is an anion of a strong inorganic ore organic acid. Such compound may be produced by a method in which 70 to 80 parts by weight of 35% hydrochloric acid are gradually added to 100 parts by weight of N,N-dimethylbenzylamine whereupon the temperature of the reaction compound is adapted to the value of 40.degree. to 80.degree. C. and 55 to 75 parts by weight of epichlorhydrin are gradually added, wherein the temperature of the resulting compound is kept between 60.degree. to 100.degree. C. over the course of 60 to 120 minutes since the last addition of epichlorhydrin.

REFERENCES:
patent: 3643270 (1972-02-01), Kirschnek et al.
patent: 3988111 (1976-10-01), Balland
patent: 4090845 (1978-05-01), Petzold et al.

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