复合氧漂活化体系在棉针织物冷轧堆中的应用-《现代纺织技术》(2020年2期).docx

龙源版权所有 复合氧漂活化体系在棉针织物冷轧堆中的应用作者：陆水峰来源：《现代纺织技术》2020年第02期 摘 要：针对传统棉织物冷轧堆漂白法耗时长和耗碱高等问题，研究复合氧漂活化体系在棉针织布冷轧堆漂白中的应用。通过单因素试验法和正交试验法探讨各漂白因素对棉织物白度和断裂强力的影响。结果表明：在室温30 ℃，复合氧漂剂质量浓度4 g/L，H2O2质量浓度32.5 g/L，NaOH质量浓度5 g/L，堆置时间7 h时，该棉氧漂活化体系可获得与常规冷轧堆氧漂工艺相当的织物白度，并明显减少织物强力损伤，提高前处理效率，为实践生产提供参考。 关键词：棉针织物;冷轧堆;低温漂白;活化催化;复合氧漂 中图分类号：TS192.5 文献标志码：A 文章编号：1009-265X（2020）02-0080-05 Abstract：To overcome the problems of long time consumption and large consumption of alkali of conventional pad-batch bleaching， it is intended to study the application of compound oxygen bleaching activation system in cold pad-batch of cotton knitted fabrics.The effects of bleaching factors on whiteness and breaking strength of fabrics were investigated via single factor test and orthogonal test.Results show that under the following process conditions of indoor temperature of 30 ℃， mass concentration of compound oxygen bleaching agent of 4 g/L， mass concentration of H2O2 of 32.5 g/L， mass concentration of NaOH of 5 g/L， and stacking time of 7 h， the cotton oxygen bleaching activation system can achieve fabric whiteness comparable to that achieved via conventional cold pad-batch oxygen bleaching process， significantly reduce fabric strength damage， and improve pretreatment efficiency， which is referable for practical production. Key words：cotton knitted fabric; cold pad batch; low temperature bleaching; activation catalysis; compound oxygen bleaching 常规棉双氧水漂白能获得较好的织物白度效果，但氧碱汽蒸漂白工艺需要高温（95 ℃以上）处理，而冷轧堆漂白工艺处理温度低，需高浓度碱长时间处理，易造成织物强力损伤等缺陷[1-3]，不符合棉织物节能高效生产工艺的要求。 棉纤维低温漂白方法依据作用机理可以分为有机类氧漂活化剂和生物酶及仿酶金属配合物催化剂两大类[4]，活化剂与双氧水催化产物过氧化氢阴离子反应，生成氧化能力更强的过氧酸类化合物，黄益等[5]、曹机良等[6]对活化剂非离子型四乙酰乙二胺（TAED）、阴离子型烷酰氧苯···试读结束