| 摘要 |
The dyes of the formula I <IMAGE> (I) in which Me is cobalt or chromium, A and A' independently of each other are each the radical of an amine of the benzene series which carries the hydroxyl group in the o-position relative to the azomethine group, Ar1 and Ar3 independently of each other are each a substituted or unsubstituted phenylene or naphthylene radical, Ar2 and Ar4 independently of each other are each a substituted or unsubstituted benzene or naphthalene radical, m and n independently of each other are each 0 or 1, p is an integer from 3 to 6 and Ka(+) is a cation, are suitable for dyeing polyamides, particularly wool and leather. |
