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Improving The Environmental Aspects Of Sulphur Dyeing Of Cotton Knitted Fabrics

机译:改善棉针织面料的硫染色环境方面

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An attempt has been made to search for an eco-friendly reductants and oxidants for complete substitution of the hazardous ones along with finding out proper conditions for attaining better knitted sulphur dyeings. The results detailed in this article indicate that a) the extent of coloration is governed by both the type of reductant as well as dye/reductant ratio, i.e. liquid glucose (LG, ratio 1/1) > glucose (G, ratio, 1/1) > molaas (M, ratio 1/4), as well as the knitted fabric structure i.e. Pique > Rib > Milton; (b) the depth of shade can be improved by raising the dyeing temperature up to 80℃ for 45 min., at a material-to-liquor ratio 1/10, in presence of 30g/l common sa (c) the extent of sulphur dyeing is determined by the nature of oxidant, i.e. (NH_4)_2S_2O_8 > H_2O_2 > None; (d) after treatment with cationic softener results in higher softness along with better washing and rubbing fastness; and (e) the dyeing as well as fastness properties of the obtained sulphur dyeings depend on the sulphur dye category.
机译:已经尝试寻找一种生态友好的还原剂和氧化剂,以完全替代危险的还原剂和氧化剂,并找到适当的条件以获得更好的针织硫磺染色。本文详细介绍的结果表明:a)着色程度受还原剂类型以及染料/还原剂比率的控制,即液体葡萄糖(LG,比率1/1)>葡萄糖(G,比率1 / 1)> molaas(M,比率1/4),以及针织物结构,即Pique> Rib> Milton; (b)可以通过在30g / l的食盐存在下,以1/10的料液比将染色温度提高至80℃达45分钟,来改善阴影深度。 (c)硫磺染色的程度取决于氧化剂的性质,即(NH_4)_2S_2O_8> H_2O_2>无; (d)用阳离子软化剂处理后,可获得较高的柔软度,并具有较好的耐洗和耐摩擦性; (e)所获得的硫磺染料的染色性和坚牢度取决于硫磺染料的种类。

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