The dyeing of silk Part 4 heterobifunctional dyes

被引：20
作者：
Burkinshaw, S. M. [1 ]
Paraskevas, M. [1 ]
机构：
[1] Univ Leeds, Leeds LS2 9JT, W Yorkshire, England
来源：
DYES AND PIGMENTS | 2011年 / 88卷 / 03期
关键词：
Reactive dyes; Modified vinylsulfone; Silk; Dyeing; Wash off; BIFUNCTIONAL REACTIVE DYES; FIBERS; SOLUBILITY;
D O I：
10.1016/j.dyepig.2010.08.018
中图分类号：
O69 [应用化学];
学科分类号：
081704 ;
摘要：
The exhaustion and fixation of three commercial aminochlorotriazine/masked vinylsulfone dyes were both pH- and temperature-dependent Optimum dye fixation was obtained at pH 8 as a corollary of a high number of nucleophilic -NH2 groups in the fibre high conversion of the masked form of the dye to the reactive VS variant as well as reaction with OH-containing amino acid residues The marked temperature-dependence of dye fixation achieved in the pH range 3 to 9 demonstrated the importance of kinetic factors in dye fibre reaction The wash-off method used was very effective in removing unfixed/hydrolysed dye from the silk fabric and as a result the dyeings displayed very good fastness to washing at 40 degrees C (C) 2010 Elsevier Ltd All rights reserved
引用
收藏
页码：396 / 402
页数：7
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