Process for the dyeing and printing of polyester material

Details Process for the dyeing and printing of polyester material Process for the dyeing and printing of polyester material

1976-05-07

1978-03-14

Levy, Donald

Bleaching and dyeing; fluid treatment and chemical modification

Chemical modification of textiles or fibers or products thereof

Treating textiles or fibers from synthetic resin or natural...

8 15, 8 39C, 8 41C, 260156, 260158, 260162, 260187, 260207, 2602071, 260272, 260278, 260373, 260374, D06P 352

Patent

active

040788903

ABSTRACT:
The invention relates to a process for the dyeing and printing of polyester material in a weakly acid, neutral or alkaline solution of at least one altered dispersion dyestuff water-soluble at an intermediate stage and containing a carbacyl group which is bound by way of an oxygen atom, and which can be split off under the dyeing conditions, the said carbacyl group carrying at least one sulphonic acid or carboxylic acid group, to a process for the production of these dyestuffs water-soluble at an intermediate stage, as well as to new water-soluble dyestuffs. Compared with the conventional process of dispersion dyeing, this process offers certain definite advantages, namely, the dyestuffs need not be present as a dispersion, the complicated milling problems associated with dispersion dyestuffs are eliminated; no dispersing agents are required, which are mostly toxic and thus burden the effluent; and hence, furthermore, the troublesome foam problems normally occurring in large-scale dyeing plants are likewise avoided.

REFERENCES:
patent: 1931806 (1931-10-01), Ulrich
patent: 2290945 (1942-07-01), Dahlen
patent: 2359862 (1944-10-01), Linch
patent: 3255173 (1966-06-01), Dohnert
Mullen, Acetate Silk, 264-265, 274-276, 1929, Van Nostrand.

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