Release Time:2019-03-09  Hits:

Indexed by: Journal Article

Date of Publication: 2012-04-01

Journal: COLORATION TECHNOLOGY

Included Journals: Scopus、EI、SCIE

Volume: 128

Issue: 2

Page Number: 121-126

ISSN: 1472-3581

Abstract: 1-(4'-Alkylaminosulphurylphenyl)-3-methyl-5-pyrazolonyl azoanthraquinone dyes were prepared in four steps from 1-aminoanthraquinone, as an approach to enhancing the exhaustion levels of disperse dyes on polylactide fibres. Their structures were confirmed from combustion analysis and mass spectrometry, infrared and proton nuclear magnetic resonance spectroscopy. Results from artificial intelligence-based molecular modelling studies showed that increasing alkyl chain length gave an increase in LogP, molecular volume and aplanar shape. Their application to polylactide fibres led to both good per cent exhaustion values and good light fastness ratings. It was also found that the nature of the alkyl chains attached to the phenyl ring had little influence on dye colour, but clearly influenced per cent exhaustion and wash fastness.