活性荧光黄FL的染色性能

Dyeing behaviors of Reactive Fluorescent Yellow FL

从荧光反射率和色差的角度,讨论了染色浴比、加碱量、加碱方式、染色温度和染料拼混对荧光黄FL染色性能的影响。结果表明,荧光黄FL的水解程度不会随染色浴比的增大而增加;荧光黄FL于50℃进行染色,低温(30℃)条件下加入元明粉和混合碱(纯碱/烧碱),染色织物的表观反射率和荧光反射率达到最佳;混拼少量的翠蓝KN-G和嫩黄4GL,可以在保证荧光反射率的基础上对色光进行微调,但用量不宜过多。

The influences of bath ratio, alkali dosage and adding method, dyeing temperature and combination dyes on dyeing behaviors of Remazol Fluorescence Yellow FL are discussed from the aspect of fluorescence reflectance and color difference. The results show that the hydrolysis degree of Fluorescent Yellow FL does not increase with the increase in dyeing bath ratio. The optimized apparent reflectance and fluorescence reflectance can be obtained with dyeing at 50 ℃ and adding of sodium carbonate and mixed alkali of sodium carbonate and caustic soda at low temperature of 30 ℃. Fine adjustment of color shade can be realized with a controlled combination of Reactive Turquoise Blue KN-G and Reactive Yellow 4GL respectively.