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首页> 外文期刊>The Journal of the Textile Institute >Acid dyeing of linen fabrics using gemini cationic surfactants
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Acid dyeing of linen fabrics using gemini cationic surfactants

机译：使用双子阳离子表面活性剂对亚麻织物进行酸性染色

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Three novel gemini cationic surfactants were synthesized and their structures confirmed by ~1H-NMR analysis. The interaction of C.I. Acid Violet 1 dye with gemini cationic surfactants in aqueous solution was investigated by UV-Vis spectroscopy at the λ_(max) of the acid dye-cationic surfactants. The dyeing behavior of the acid dye-cationic surfactants and their fastness properties were investigated. It was observed that the aggregation of surfactant and dye takes place at low concentrations far below 1 g/l. The further addition of surfactant resulted in an absorption spectrum characteristic of fully saturated acid dye in the cases of the 16-2-16 and 16-3-16 surfactants at 1 g/l, and in the case of the 10-3-10 surfactant 1.2 g/l. The results also showed bathochromic shifts for the acid dye followed by significant increase in the X_(max) at the optimum concentrations of these surfactants. The dyeability of linen fabric with acid dye-gemini cationic surfactants increased as the electrostatic interactions between the surfactant head groups and the anionic nature of the acid dye increased, but the hydrophobic interactions decreased at higher temperature. The fastness to washing and rubbing improved by increasing the alkyl length of the gemini surfactants from 10-3-10 to 16-2-16 and 16-3-16, although the spacer length had no effect.
机译：合成了三种新型双子阳离子表面活性剂，并通过〜1H-NMR分析证实了其结构。 C.I.的互动通过紫外-可见光谱研究酸性染料-阳离子表面活性剂的λ_（max），研究了含双子阳离子表面活性剂的酸性紫1染料。研究了酸性染料阳离子表面活性剂的染色行为及其牢度性能。观察到表面活性剂和染料的聚集发生在远低于1 g / l的低浓度下。在16-2-16和16-3-16表面活性剂为1 g / l的情况下以及在10-3-10情况下，进一步添加表面活性剂会导致完全饱和的酸性染料的吸收光谱特性表面活性剂1.2克/升。结果还显示酸性染料的红移，然后在这些表面活性剂的最佳浓度下X_（max）显着增加。亚麻织物对酸性染料-双子阳离子表面活性剂的染色性随着表面活性剂头基之间的静电相互作用和酸性染料的阴离子性质的增加而增加，但在高温下疏水性相互作用降低。尽管间隔物的长度没有影响，但通过将双子表面活性剂的烷基长度从10-3-10增加到16-2-16和16-3-16，可以提高洗涤和摩擦的牢度。

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