Process for improving the dyeability of woven or non-woven texti

Details Process for improving the dyeability of woven or non-woven texti Process for improving the dyeability of woven or non-woven texti

1989-11-09

1991-06-18

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

Organic additive for dye composition, dye composition...

Polymeric additive

8543, 8606, 8680, 8917, 8918, 8922, 8924, 8927, 8928, D06M 1556, D06P 152, D06P 522, C08G 1848

Patent

active

050246747

ABSTRACT:
Process for improving the dyeability of woven or non-woven textiles by treating them with an aqueous dispersion of polyurethanes containing in the macromolecule randomly distributed cationic groups, such as ammonium, in quantity between 15 and 100 milliequivalents for 100 grams of dry polyurethane, said treatment being carried out before dyeing.

REFERENCES:
patent: 3686108 (1972-08-01), Reiff et al.
patent: 4339566 (1982-07-01), Rosenkrawz et al.
patent: 4367307 (1983-01-01), Hirai et al.
patent: 4497932 (1985-02-01), Trovati

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