Dispersant‐free dyeing of polyester with temporarily solubilised azo disperse dyes from 1‐substituted‐2‐hydroxypyrid‐6‐one derivatives
Dispersant‐free dyeing of polyester with temporarily solubilised azo disperse dyes from 1‐substituted‐2‐hydroxypyrid‐6‐one derivatives
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DOI：
10.1111/j.1478-4408.2002.tb00093.x
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发表时间：
2002-07
影响因子：
1.8
通讯作者：
J. Lee;Nayoung Han;Won Jae Lee;Jyung Choi;Junghun Kim
中科院分区：
文献类型：
--
作者：
J. Lee;Nayoung Han;Won Jae Lee;Jyung Choi;Junghun Kim
合成并表征了四种基于 1-取代-2-羟基吡啶-6-酮的暂时溶解的偶氮分散染料。该染料表现出高消光系数，并且在涤纶织物上呈现黄色色调。它们在不使用分散剂的情况下成功应用于聚酯，并且发现最佳pH值为5。发现由于染料在弱碱性条件下电离，因此染料可以被碱清除。该染料在涤纶织物上表现出良好至优异的牢度性能。
Four temporarily solubilised azo disperse dyes based on 1-substituted-2-hydroxypyrid-6-one were synthesised and characterised. The dyes showed high extinction coefficients and had a yellow shade on polyester fabric. They were successfully applied to polyester without the use of dispersants and the optimum pH was found to be 5. It was found that the dyes could be alkali-cleared due to ionisation of the dye under mild alkaline conditions. The dyes exhibited good to excellent fastness properties on the polyester fabric.