Abstract: Reactive disperse dyes of either monoazo or anthraquinone types containing the β-sulphated hydroxy-ethyl sulphonyl group were synthesized and their dyeing properties investigated.These dyes possessed thetriple characteristics of acid,reactive and disperse dyes in dyeing polyamide fibres.The formation ofcovalent bond between the reactive group and nylon fibre was proved and discussed.

摘要： Reactive disperse dyes of either monoazo or anthraquinone types containing the β-sulphated hydroxy-ethyl sulphonyl group were synthesized and their dyeing properties investigated.These dyes possessed thetriple characteristics of acid,reactive and disperse dyes in dyeing polyamide fibres.The formation ofcovalent bond between the reactive group and nylon fibre was proved and discussed.