Diazo dyes containing a hydroxy alkoxybenzene middle component a

Details Diazo dyes containing a hydroxy alkoxybenzene middle component a Diazo dyes containing a hydroxy alkoxybenzene middle component a

1992-07-14

1994-02-22

Lee, Mary C.

Organic compounds -- part of the class 532-570 series

Organic compounds

Azo

534586, 534590, 534764, 8641, 8917, 8924, 8929, C09B 31147, D06P 324

Patent

active

052888584

ABSTRACT:
The invention relates to azo dyes of the formula ##STR1## in which R, R.sub.1 and R.sub.2, independently of one another, are hydrogen, substituted or unsubstituted C.sub.1 -C.sub.8 alkyl or phenyl, R.sub.3 is hydrogen or substituted or unsubstituted C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.7 cycloalkyl or phenyl and the benzene rings I and II may be further substituted.
The azo dyes are suitable for the dyeing or printing of natural or synthetic polyamide fibre materials, in particular in combination with other dyes and in particular from short liquors. The azo dyes are distinguished by generally good properties, in particular good affinity.

REFERENCES:
patent: 3066134 (1962-11-01), Gangneux et al.
patent: 3900460 (1975-08-01), Dehnert
patent: 4579561 (1986-04-01), Rowe
patent: 4749784 (1988-06-01), Feeman
patent: 5196520 (1993-03-01), Schaetzer
Lange et al., CHemical Abstracts, 58:1566c (1963).

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