Process for trichromatic dyeing or printing

Details Process for trichromatic dyeing or printing Process for trichromatic dyeing or printing

1990-10-18

1991-09-03

Clingman, A. Lionel

Bleaching and dyeing; fluid treatment and chemical modification

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

Mixed dyes, noncomplexed

8639, 8643, 8681, 8683, 8684, 8687, 8690, 8692, 8917, 8924, C09B 6722

Patent

active

050450840

ABSTRACT:
A process for the trichromatic dyeing or printing of natural and synthetic polyamide fibre materials, which comprises using at least one red dye of the formula ##STR1## in which D,R.sub.1,R.sub.2,R.sub.3,R.sub.4 and n are as defined in claim 1, together with at least one yellow or orange dye of the formula ##STR2## in which B.sub.1,B.sub.2,E.sub.1 and X are as defined in claim 1, or ##STR3## in which Z.sub.1,Z.sub.2 and Z.sub.3 are as defined in claim 1, or mixtures of dyes of the formulae (2) and (3), or a yellow dye of the formula ##STR4## in which W.sub.1,W.sub.2,W.sub.3 and W.sub.4 are as defined in claim 1, or mixtures of dyes of the formulae (2),(3) and (4) and at least one blue dye of the formula ##STR5## in which one Y and Z.sub.4 are as defined in claim 1 are used. The process according to the invention is suitable for dying natural or synthetic polyamide materials from aqueous liquor or for printing with printing pastes; and in particular for dyeing from short liquors.

REFERENCES:
patent: 3692769 (1972-09-01), Weaver et al.
patent: 4396393 (1983-08-01), Schaetzer et al.
patent: 4402704 (1983-09-01), Raisin et al.
patent: 4445905 (1984-05-01), Schaetzer et al.
patent: 4537598 (1985-08-01), Schaetzer et al.
patent: 4579561 (1986-04-01), Rowe et al.
patent: 4652269 (1987-03-01), Bowles et al.
patent: 4840643 (1989-06-01), Rowe

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