Chromium and cobalt complex amino hydroxy azomethine dyes

Details Chromium and cobalt complex amino hydroxy azomethine dyes Chromium and cobalt complex amino hydroxy azomethine dyes

1980-03-24

1982-02-16

Higel, Floyd D.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260145B, 260145C, 260146R, 260146D, 260146T, 260147, 260148, 260149, 260150, 260151, C09B 4516, C09B 4520, C09B 4526, C09B 4530

Patent

active

043158544

ABSTRACT:
1:2 Metal complex dyes of azomethines of the formula ##STR1## wherein R is hydrogen, unsubstituted or substituted alkyl, aralkyl, aryl, alkylsulfonyl or arylsulfonyl, A is the radical of an aliphatic 1,2- or 1,3-diamine or of a carbocyclic or heterocyclic 1,2-diamine, B is the radical of an aromatic o-hydroxyaldehyde, Ar.sub.1 is an aromatic radical, m is 1 or 2, and Ar.sub.2 is an aromatic-carbocyclic or heterocyclic radical. These dyes are suitable for dyeing and printing polyamide materials. The dyes are distinguished by their excellent fastness properties, especially good lightfastness. They have good covering power; produce level dyeings; and have good fastness to washing, water, perspiration, alkali, acid, diffusion and rubbing. Strong yellow, yellowish brown, reddish brown, dark brown or olive brown shades are obtained.

REFERENCES:
patent: 2985646 (1961-05-01), Schetty et al.
patent: 3391132 (1968-07-01), Beffa et al.
patent: 4052374 (1977-10-01), Baumann
patent: 4085097 (1978-04-01), Beffa et al.
patent: 4102879 (1978-07-01), Baumann
patent: 4116952 (1978-09-01), Beffa et al.

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