Process for trichromatic dyeing or printing

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

1996-03-01

1997-05-20

Einsmann, Margaret

Bleaching and dyeing; fluid treatment and chemical modification

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

Mixed dyes, noncomplexed

8643, 8917, 8924, 8683, 8676, D06P 316, D06P 324

Patent

active

056308515

ABSTRACT:
A process for dyeing or printing polyamide material by the trichromatic technique using a dye mixture which contains least two yellow- or orange-dyeing dyes of formula (1) ##STR1## wherein R.sub.1 is hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy or halogen, and X is hydrogen or C.sub.1 -C.sub.4 alkyl; together with at least one red-dyeing dye of formulae (2) and (3) ##STR2## wherein R.sub.2 is C.sub.1 -C.sub.6 alkyl, phenyl or cyclohexyl and R.sub.3 is C.sub.1 -C.sub.6 alkyl, or wherein R.sub.2 and R.sub.3, together with the linking nitrogen atom, form an azepinyl ring, and R.sub.4 is hydrogen, C.sub.2 -C.sub.4 alkanoylamino or halogen; and together with at least one of the blue-dyeing dyes of formulae (4) and (5) ##STR3## wherein R.sub.5 is hydrogen or C.sub.1 -C.sub.4 alkyl, R.sub.6 is C.sub.1 -C.sub.4 alkyl or amino, R.sub.7 is hydrogen or methyl, and R.sub.8 is a C.sub.2-4 hydroxyalkylsulfamoyl radical, is disclosed.

REFERENCES:
patent: 4060383 (1977-11-01), Ridyard
patent: 4075200 (1978-02-01), Ridyard
patent: 5092905 (1992-03-01), Dar e 8638
Chem. Abst. 100(26) 211638k of PL119756 30 Nov. 1983.
Chem. Abst. 100(26) 211637j of PL119751 30 Nov. 1983.

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