Process for trichromatic dyeing or printing

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

1993-11-24

1995-03-21

Lieberman, Paul

Bleaching and dyeing; fluid treatment and chemical modification

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

Mixed dyes, noncomplexed

8643, 8662, 8676, 8682, 8681, 8687, 8917, 8924, C09B 0000, D06P 306, D06P 314

Patent

active

053991834

ABSTRACT:
Process for the trichromatic dyeing or printing of natural or synthetic polyamide fibre materials, which comprises using at least one blue-dyeing anthraquinone dye of the formula ##STR1## in which R.sub.1, R.sub.2, R.sub.3 and R.sub.4, independently of one another, are hydrogen or C.sub.1 -C.sub.6 alkyl, the sum of the carbon atoms of the radicals R.sub.1, R.sub.2, R.sub.3 and R.sub.4 being 4, 5 or 6 and the sulfo group in the anthraquinone dye of the formula (1) being attached in the position designated as 6 or 7, together with at least one red-dyeing dye of the formula (2) and at least one of the yellow- or orange-dyeing dyes of the formulae (3), (4) and (5), the dyes of the formulae (2), (3), (4) and (5) being as defined in claim 1.
The process according to the invention is suitable for dyeing natural or synthetic polyamide materials from an aqueous liquor or for printing with printing pastes.

REFERENCES:
patent: 4402704 (1983-09-01), Raisin et al.
patent: 4445905 (1984-05-01), Schaetzer et al.
patent: 4447358 (1984-05-01), Schwander 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
patent: 5092905 (1992-03-01), Dore 8638

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