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首页> 外文期刊>The Journal of the Textile Institute >Chitosan-cyanuric chloride hybrid as an efficient novel bio-mordant for improvement of cochineal natural dye absorption on wool yarns
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Chitosan-cyanuric chloride hybrid as an efficient novel bio-mordant for improvement of cochineal natural dye absorption on wool yarns

机译：壳聚糖-氰尿酰氯杂化物作为一种有效的新型生物媒质，可改善羊毛纱线上的胭脂红天然染料吸收

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摘要

This study presents an ecological and economical method for dyeing and durable antibacterial finishing of wool with cochineal natural dye. Wool yarn was treated with prepared chitosan-cyanuric chloride hybrid (Ch-Cy), was checked for its capability to covalently react with wool, and its dyeing, color fastness, as well as antibacterial properties were also investigated. The influences of key factors such as Ch-Cy concentration, dye concentration, pH, time, and temperature of dyeing were investigated and optimized. Results showed that Ch-Cy (15% on weight of fiber ) treatment of wool had several beneficial effects which brought about remarkable improvement in dye uptake, decrease in optimum dyeing time and temperature, elimination of metal mordant from dyeing process due to bio-mordant role of Ch-Cy, and development of antibacterial finish against pathogenic gram negative Escherichia coli and gram positive Staphylococcus aureus bacteria which was durable up to 20 washing cycles. Color fastness properties of treated wool were all satisfactory and in acceptable range. It was concluded that the simple Ch-Cy treatment of wool can considerably assist to reduce energy consumption, chemicals, and dyeing costs which makes the process cost effective and eco-friendlier over conventional processes.
机译：这项研究提出了一种生态经济的方法，用胭脂红天然染料对羊毛进行染色和持久的抗菌整理。用制备的壳聚糖-氰尿酰氯杂化物（Ch-Cy）处理羊毛纱线，检查其与羊毛共价反应的能力，并研究其染色，色牢度和抗菌性能。研究并优化了诸如Ch-Cy浓度，染料浓度，pH，时间和染色温度等关键因素的影响。结果表明，Ch-Cy（占纤维重量的15％）处理羊毛具有多种有益效果，从而显着改善了染料吸收率，缩短了最佳染色时间和温度，并消除了生物媒染剂在染色过程中产生的金属媒染剂Ch-Cy的功能，以及针对致病性革兰氏阴性大肠杆菌和革兰氏阳性金黄色葡萄球菌的抗菌涂层的开发，这种涂层在长达20个洗涤周期后仍可持久使用。处理过的羊毛的色牢度性能都令人满意并且在可接受的范围内。结论是，简单的Ch-Cy羊毛处理可以大大帮助减少能源消耗，化学药品和染色成本，这使该工艺比传统工艺更具成本效益且更加环保。

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