壳聚糖/棉混纺纱前处理及染色性能
Pretreatment and dyeing properties of chitosan/cotton blended fiber
张子超 1张京彬 1薛孟芳 1刘淑云 1王翊 1武飞 1宁慧1
作者信息
- 1. 国家先进印染技术创新中心,山东泰安 271000;山东中康国创先进印染技术研究院有限公司,山东泰安 271000
- 折叠
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.
Abstract
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,yam 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Key words
chitosan/blended yarn/pretreatment/cotton/dyeing property/color fastness引用本文复制引用
基金项目
山东省重点研发计划资助(2022ZDPT02)
出版年
2024
NETL
NSTL
万方数据