Synthesis and application of yellow azo‐anthraquinone disperse dyes for polylactide fibres |
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| Authors: | Liang He Lihua Lu Shufen Zhang Harold S Freeman |
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| Affiliation: | 1. State Key Laboratory of Fine Chemicals, Dalian University of Technology, Dalian 116012, China
Email: lhedlut2002@yahoo.com.cn;2. Chemical and Pharmaceutical College, Qingdao Agriculture University, Qingdao 266109, China;3. Department of Textile Engineering, Chemistry and Science, North Carolina State University, Raleigh, NC 27695‐8301, USA |
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| Abstract: | 1‐Phenyl‐3‐methyl‐5‐pyrazolonyl azo‐anthraquinone dyes having high light fastness on polylactide fibres were synthesised from 1‐aminoanthraquinone via a diazotisation‐coupling reaction with 1‐phenyl‐3‐methyl‐5‐pyrazolones. The structures of these new dyes were confirmed using mass spectrometry, infrared and proton nuclear magnetic resonance spectroscopy and combustion analyses. Their dyeing behaviour on polylactide fibres was also determined, whereupon it was found that the title dyes could be applied at a relatively low dyeing temperature and that the corresponding dyed fabrics had good fastness properties. |
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