Fiber-reactive azo dyes having a 4,6-diaminopyridine coupling co

Details Fiber-reactive azo dyes having a 4,6-diaminopyridine coupling co Fiber-reactive azo dyes having a 4,6-diaminopyridine coupling co

1988-06-23

1990-02-13

Hagel, Floyd D

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

Organic compounds

Azo

534591, 534617, 534632, 534636, 534641, 534642, 534643, C09B 6208, C09B 6224, C09B 62507, C09B 62523

Patent

active

049008137

ABSTRACT:
Novel reactive dyes particularly suitable for the dyeing and printing of cellulose-containing fiber materials which give, in combination with a high color yield, dyeings and prints having good fastness properties, said dyes having the formula ##STR1## in which D is the radical of a diazo component, Q is a substituted or unsubstituted phenyl or naphthyl radical or a substituted or unsubstituted aromatic heterocyclic radical and A.sub.1 and A.sub.2 independently of one another are a radical of the formula ##STR2## in which R.sub.1 and R.sub.2 independently of one another are hydrogen, substituted or unsubstituted C.sub.1 -C.sub.6 alkyl or substituted or unsubstituted aryl, or R.sub.1 and R.sub.2 together with the N atom form a further substituted or unsubstituted heterocyclic 5- or 6-ring, with the proviso that at least one of the radicals A.sub.1, A.sub.2 and D has a fiber-reactive group.

REFERENCES:
patent: 3598801 (1971-08-01), Beffa et al.
patent: 4493726 (1985-01-01), Burdeska et al.
patent: 4698091 (1987-10-01), Brunner et al.
patent: 4709018 (1987-11-01), Seitz
patent: 4754023 (1928-06-01), Tzikas et al.

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