Chromium complex dye, including azo and azo methine dye compounds

摘要

1:2 Chromium complex dyes of an azo compound of the formula <IMAGE> and an azomethine compound of the formula <IMAGE> COMPLEXED TO A CHROMIUM ATOM, WHEREIN A is an ortho-phenylene or - naphthylene diazo component radical; B is an ortho-phenylene or - naphthylene coupling component radical; X is -O- or -CO-O-; X' is -O-, -NH-, -N(lower alkyl)-, -N(aralkyl)- or -N(aryl)-; R is an aliphatic radical; the benzene ring "a" is unsubstituted or substituted by a fused benzene ring, halo, nitro alkyl or alkoxy; the molecule containing 0-5 water solubilizing groups and optionally a group of the formula -N=N-Ar-N=N-Ar' and/or -N=N-Ar'' wherein Ar, Ar' and Ar'' represent an aromatic or carbocyclic radical.