| 摘要 |
This invention relates to azo dyes in which the diazotized amino component bears sulfated hydroxyalkoxycarbonyl or N-(hydroxyalkyl)carbamoyl groups on its ring. These dyes have excellent dyeing properties on polyamide fibers and also impart color to cellulose acetate fibers and wool. The dyes correspond to the general formulae: <IMAGE> wherein X' is O, NH, N(alkyl)- or N(aryl)-; Z is selected from straight- or branched-chain alkylene which may be substituted, for example, with phenyl, halogen, OSO3M, alkoxy, aryloxy and the like; M is H, Na, K or NH4; and the coupler C is selected from those of the formulae <IMAGE> <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> wherein the R substituents are selected from a wide variety of groups known to the art.
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