Disperse azo dyestuffs are obtained by coupling diazotised meta-nitroanilines onto 3-acylamino-N,N-di-(alkoxycarbonylalkyl) aniline coupling components. The dyes are especially useful for direct printing of polyester, for continuous dyeing of polyester cotton blends and as a yellowing component for black, navy and other mixtures for printing where sublimation fastness is important.
The dyes, which give red to yellow shades, exhibit good properties with respect to multifibre printing and non-staining properties after wet treatments and good stannous chloride dischargeability.
分散偶氮
染料是通过将重氮化的偏
硝基苯胺与 3-酰
氨基-N,N-二(烷氧羰基烷基)
苯胺偶联组分偶联而得到的。这些
染料特别适用于涤纶的直接印花、涤棉混纺的连续染色,以及作为黑色、藏青色和其他对升华牢度要求较高的印花混合物的泛黄组分。
这些
染料可产生红色至黄色的色调,在多纤维印花方面表现出良好的特性,在湿处理后无沾污特性,并具有良好的
氯化亚锡排放性。