壳聚糖/棉混纺纱前处理及染色性能  

Pretreatment and dyeing properties of chitosan/cotton blended fiber

作　　者：张子超 张京彬 薛孟芳 刘淑云 王翊 武飞 宁慧 ZHANG Zichao;ZHANG Jingbin;XUE Mengfang;LIU Shuyun;WANG Yi;WU Fei;NING Hui(National Innovation Center of Advanced Dyeing&Finishing Technology,Taian 271000,Shandong,China;Shandong Zhongkang Guochuang Research Institute of Advanced Dyeing&Finishing Technology Co.,Ltd.,Taian 271000,Shandong,China)

机构地区：[1]国家先进印染技术创新中心,山东泰安271000 [2]山东中康国创先进印染技术研究院有限公司,山东泰安271000

出　　处：《上海纺织科技》2024年第6期76-81,95,共7页Shanghai Textile Science & Technology

基　　金：山东省重点研发计划资助(2022ZDPT02)。

摘　　要：壳聚糖/棉混纺纱具有优异的抗菌性,但在染色过程中壳聚糖会大量损失,影响其服用性能。采用正交试验法讨论了氢氧化钠用量、温度、时间、过氧化氢用量对壳聚糖/棉混纺纱壳聚糖含量、纱线断裂强力、白度、毛细效应的影响,探究了直接染料、活性染料对壳聚糖/棉混纺纱壳聚糖含量、色牢度的影响。最佳前处理方案为:处理温度80℃,保温时间50 min,氢氧化钠质量浓度1.5 g/L,过氧化氢质量浓度4 g/L。此时混纺纱线中壳聚糖含量为17.36%,纱线断裂强力为218.83 cN,白度为64.9%,毛细效应为16.2 cm。活性染料适合染浅色织物,染中深色(>0.5%omf)织物时壳聚糖含量降低明显。直接染料适合染中深色织物,染色时壳聚糖含量符合要求,固色后色牢度符合染色要求。Chitosan/cotton blended yarn is an excellent environmentally friendly antibacterial material,but there is a significant loss of chitosan during the dyeing process,affecting its wearability.The effects of sodium hydroxide dosage,temperature,time and hydrogen peroxide dosage on the chitosan content,yarn breaking strength,whiteness and capillary effect of chitosan/cotton blended yarn are discussed by orthogonal experimental method,as well as the effect of chitosan/cotton blended yarn dyeing with direct and reactive dyes on the chitosan content and color fastness.The optimum pre-treatment process is determined as pretreating at 80℃for 50 min with 1.5 g/L sodium hydroxide and 4 g/L hydrogen peroxide.After pretreatment,the chitosan content in the blended yarn is 17.36%,the yarn breaking strength is 218.83 cN,the whiteness is 64.9%,and the capillary effect is 16.2 cm.Reactive dyes are suitable for dyeing in light color,when dyeing in medium to dark colors(>0.5 omf),chitosan content decreases significantly.Direct dyes are suitable for dyeing in medium to dark color,and chitosan content and color fastness after fixation meet the quality requirements.

关 键 词：壳聚糖 混纺纱 前处理 棉 染色性能 色牢度 

分 类 号：TS193.6[轻工技术与工程—纺织化学与染整工程]