Study into the cold pad-batch application of monochloro-s-triazinyl and m-carboxypyridinium-s-triazinyl reactive dyes bearing various “second-leg” N-substituents

Huei Chin Huang, Chun Guey Wu

研究成果: 雜誌貢獻期刊論文同行評審

摘要

A series of monochloro-s-triazinyl (MCT) and related m-carboxypyridinium-s-triazinyl (nicotinic acid [NTR]) reactive dyes based on the same red chromophore and bearing –NHCN, –OCH3, –N(CH3)SO2CH3, –N-methylphenyl and –OH “second-leg” substituents were evaluated in cold pad-batch dyeing. It was found that both the MCT and NTR dyes containing a cyanoamino second-leg substituent displayed a superior technical performance to the dyes bearing methoxy, N-methyl(methylsulphonyl)amino, hydroxyl and N-methylaniline substituents. The results suggest that these technical benefits of dyeing are derived from the smaller molecule size and electronic effect of the cyanoamino group compared with the other second-leg substituents commonly used in both MCT and NTR reactive dye synthesis. Indeed, the use of the cyanoamino second leg on the studied red NTR reactive dyes offered a combination of short batch time, high fixation efficiency, good build-up properties and good wet fastness properties.

原文???core.languages.en_GB???
頁(從 - 到)292-298
頁數7
期刊Coloration Technology
137
發行號3
DOIs
出版狀態已出版 - 6月 2021

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