A new way to improve the light-fastness of azo reactive dyes through the introduction of benzene sulfonamide derivatives into the triazine ring
作者:Xiong Wei、Ma Wei、Zhang Shufen
DOI:10.1039/c9ra02108f
日期:——
and MS. The color fastness test proved that the light-fastness of the dyes could be improved by 1 grade via the introduction of benzene sulfonamide derivatives into the triazine ring when compared with the case of the control dyes. Fluorescence spectra demonstrated that after the introduction of benzene sulfonamide derivatives, the dye molecule could return to the ground state from the excited state and
在此,通过将苯磺酰胺及其衍生物引入三嗪环,设计合成了一种新型的高耐光性异双功能活性染料。苯磺酰胺或其衍生物与2-氨基-5-萘酚-7-磺酸(J-酸)与三聚氯氰缩合合成偶联组分,再与4-(β-硫酸根合乙基磺酰基)苯胺的重氮盐偶联. 通过红外光谱和质谱对染料进行表征。色牢度测试证明,染料的耐光牢度可提高1级与对照染料的情况相比,苯磺酰胺衍生物引入三嗪环。荧光光谱表明,引入苯磺酰胺衍生物后,染料分子可以从激发态回到基态并发出荧光;此外,引入的苯磺酰胺衍生物有助于降低紫外线对染料的不利影响。此外,染色结果表明,与对照染料相比,含有磺酰胺基团的染料具有相同的染色性能。