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首页> 外文期刊>Textile Chemist and Colorist >The Use of Chitosan on Hydrogen Peroxide Pretreated Wool
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The Use of Chitosan on Hydrogen Peroxide Pretreated Wool

机译：壳聚糖在过氧化氢预处理羊毛中的应用

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摘要

Since chlorination is known to produce substantial pollution with adsorbable organo halogens (AOX) in textile wastewater, shrink resist treatments like the widely used chlorine/Hercosett process are no longer environmentally acceptable. The current trends towards the use of natural products have led to using polymers of natural origin such as chitosan as a substitute for synthetic polymers in wool finishing given its properties of biodegradability, bioactivity, and biocompatibility. The application of chitosan to wool in a zero-AOX aqueous treatment to improve shrink-resistance and dyeing properties was investigated. To enhance chitosan sorption, wool was subjected to hydrogen peroxide treatment prior to the chitosan treatment either under alkaline or acidic conditions. A staining technique was used to assess the presence and distribution of chitosan on wool. The alkaline hydrogen peroxide pretreatment promoted the diffusion of chitosan into the wool fiber leading to shrink-resist properties. To determine the influence of treatment conditions on the dyeing behavior, a low temperature (60C) was used. Dyed chitosan-treated wool, pretreated with hydrogen peroxide either at alkaline or acid pH, showed high values of exhaustion and fixation.
机译：由于已知氯化会导致纺织品废水中的可吸附有机卤素（AOX）产生大量污染，因此像抗腐蚀剂这样的抗收缩剂处理方法（如广泛使用的氯/ Hercosett工艺）在环境上已不再可接受。考虑到天然产物的生物降解性，生物活性和生物相容性的特性，当前使用天然产物的趋势已导致使用天然来源的聚合物如壳聚糖替代羊毛整理中的合成聚合物。研究了在零AOX水处理中壳聚糖在羊毛中的应用，以改善抗收缩性和染色性能。为了增强壳聚糖的吸附，在碱性或酸性条件下对羊毛进行壳聚糖处理之前先对其进行过氧化氢处理。使用染色技术评估壳聚糖在羊毛上的存在和分布。碱性过氧化氢预处理促进了壳聚糖向羊毛纤维中的扩散，从而导致了抗收缩性能。为了确定处理条件对染色行为的影响，使用了低温（60℃）。染色的脱乙酰壳多糖处理过的羊毛，在碱性或酸性pH下用过氧化氢预处理，表现出很高的耗竭和固着性。

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