摘要
壳聚糖纤维具有天然抗菌性,与棉纤维混纺可提高产品附加值,但前处理工艺的不当易引起混纺纱中壳聚糖的损失。为探究壳聚糖/棉混纺纱线的最优前处理工艺,讨论了前处理工艺中纯碱用量、烧碱用量、处理温度及时间对壳聚糖/棉混纺纱线性能的影响。试验结果表明:处理温度在前处理中是主要因素,对混纺纱线的性能影响最大;其次是碱种类及其用量,烧碱前处理的纱线白度更高,纯碱处理的纱线白度较低,但壳聚糖含量降低较少;前处理时间对混纺纱线的性能影响最小。染浅色时最佳前处理工艺为:烧碱1.5 g/L,H 2O 24 g/L,80℃,50 min;染中深色时最佳前处理工艺为:纯碱4 g/L,H 2O 24 g/L,70℃,50 min。在保证壳聚糖含量的前提下,应尽量提高壳聚糖/棉混纺纱线的单纱断裂强力、白度和芯吸高度等性能。
Chitosan fibers have natural antibacterial properties,and blending with cotton fibers can increase product added value.However,improper pretreatment processes can easily lead to the loss of chitosan in blended yarns.To explore the optimal pretreatment process for chitosan/cotton blended yarns,the effects of the amount of soda ash,caustic soda,temperature,and time in the pretreatment process on the properties of chitosan/cotton blended yarn were discussed.The orthogonal test results indicate that temperature is the main factor in pretreatment,and has the greatest impact on the performance of blended yarns;Next is the type and dosage of alkali.The yarn whiteness after caustic soda treatment is higher,while the yarn whiteness after soda ash treatment is lower,but the chitosan content decreases less;Time has the least impact on the performance of blended yarns.The optimal pretreatment process for dyeing light colors is 80℃×50 min×1.5 g/L caustic soda×4 g/L H 2O 2,the optimal pretreatment process for dyeing medium to dark colors is 70℃×50 min×4 g/L soda ash×4 g/L H 2O 2.On the premise of ensuring the chitosan content,the single yarn breaking strength,whiteness and core absorption height of the chitosan/cotton blended yarns should be improved as much as possible.
作者
张子超
张京彬
薛孟芳
王翊
张智慧
沙乾坤
ZHANG Zichao;ZHANG Jingbin;XUE Mengfang;WANG Yi;ZHANG Zhihui;SHA Qiankun(National Innovation Center of Advanced Dyeing&Finishing Technology,Tai′an,Shandong 271000,China;Shandong Zhongkang Guochuang Research Institute of Advanced Dyeing&Finishing Technology Co.,Ltd.,Tai′an,Shandong 271000,China)
出处
《毛纺科技》
CAS
北大核心
2024年第2期45-51,共7页
Wool Textile Journal
基金
山东省重点研发计划项目(2022ZDPT02)。
关键词
壳聚糖
混纺纱线
前处理
棉
chitosan
blended yarn
pretreatment
cotton
