The application of disperse dyes derived from 4-bromoaniline and 3-chloroaniline on to polyester fabric

Bulletin of The Chemical Society of Ethiopia

J. O. Otutu¹ 

关键词: Disazo dyes;    Spectral absorption;    Polyester;    Fastness;    Near-infrared absorption;   

DOI  :  10.4314/bcse.v33i1.12

学科分类：化学（综合）

来源: Chemical Society of Ethiopia

【 摘 要 】

A series of new disazo disperse dye compounds based on 4-amino-2-chlorophenylazo-4-bromobenzene intermediate were prepared by linking various arylamines and phenolic derivatives to this intermediate through diazo coupling reactions. The structures of the azo compounds were confirmed by FT-IR, ¹H NMR, ¹³C NMR and UV-visible spectral data. The results of the UV-vis absorption spectra of some of the dyes showed near-infrared absorptions around 573-800 nm. The results of the colour fastness to washing and sublimation gave an excellent value of grade 5. The light fastness values were found to be technically acceptable with the grey-scale grade of 5 to 6-7. Also, the rubbing fastness was observed to be grade 3/4 to 4.

【 授权许可】

Unknown