氨纶预牵伸倍数对棉/氨纶/不锈钢丝包覆纱性能的影响  

Effect of pre-draft ratio of elastane filaments on the properties of yarns wrapped with cotton/spandex/stainless steel wires

作　　者：王勇 乔启凡[3] 王宗乾 李长龙 王炜 WANG Yong;QIAO Qifan;WANG Zongqian;LI Changlong;WANG Wei(College of Chemistry and Chemical Engineering,Donghua University,Shanghai 201620,China;Advanced Fiber Materials Engineering Research Center of Anhui Province,Anhui Polytechnic University,Wuhu 241000,China;School of Textile and Garment,Anhui Polytechnic University,Wuhu 241000,China;Saintyear Holding Group Co.,Ltd.,Hangzhou 311221,China)

机构地区：[1]东华大学化学与化工学院,上海201620 [2]安徽工程大学安徽省先进纤维材料工程研究中心,安徽芜湖241000 [3]安徽工程大学纺织服装学院,安徽芜湖241000 [4]三元控股集团有限公司,杭州311221

出　　处：《现代纺织技术》2024年第5期32-40,共9页Advanced Textile Technology

基　　金：芜湖市重点研发项目(2022yf59);安徽工程大学校级科研项目(Xjky2022074);安徽工程大学科研项目促进纺织服装类本科拔尖人才培养项目(FFBK202221,FFBK202336)。

摘　　要：针对面向个体防护装备的涂层类电磁屏蔽材料存在无弹性、保形性差、不耐洗涤、舒适性差等不足,基于空心锭包缠纺纱机,以氨纶为纱芯、不锈钢丝和棉股线为第一和第二外包覆层,纺制兼具优良弹性和电磁屏蔽功效的棉/氨纶/不锈钢丝包覆纱。探究氨纶预牵伸倍数对包覆纱强伸性能、回弹性能的影响,利用模糊综合评判法优化工艺参数,实现纬向弹性电磁屏蔽机织物的设计构筑。结果表明:氨纶预牵伸倍数对包覆纱性能影响显著。在设定范围内,氨纶预牵伸倍数为2.5时,包覆纱综合质量较优,且在拉伸应变下具有稳健的导电特征。此外,基于包覆纱制备的纬向弹性机织物具有优良的可拉伸性,电磁屏蔽效能与织物放置方向、拉伸应变程度等密切相关。相关研究结果可为开发电磁屏蔽耐久性好、高度可拉伸且服用性能优良的电磁屏蔽织物提供新思路。Recently,the demand of protective and comfortable performances of personal protective equipment is gradually increasing.For electromagnetic shielding fabrics,most of the existing surface-coated electromagnetic shielding protective materials have certain disadvantages such as inelasticity,poor shape retention,poor washing resistance,and uncomfortable characteristics.The development of a new material having the characteristics of mechanically stretchability,controllable structure,flexible manufacturing,and electromagnetic shielding durability has become the first choice for the next generation of textile-based electromagnetic shielding materials.To fabricate high-performance yarns with excellent elasticity and shielding capability is a necessary prerequisite for the preparation of intrinsically stretchable electromagnetic shielding textile fabrics.Given this,the intrinsically stretchable electromagnetic shielding fabrics were constructed from the double level of “elastic yarn-elastic fabric” in this study.Specifically,elastic wrapped yarns containing metal wire were fabricated based on a hollow-spindle wrap spinning system with elastane filament(EF) as the core,stainless steel wire as the first wrapping layer and cotton ply yarn as the second wrapping layer.The effect of the pre-draft ratio of EF on the tensile and elastic behaviors of wrapped yarns was systematically investigated,and the processing parameters were optimized by using the fuzzy comprehensive evaluation method.After that,a weft stretch woven fabric having the characteristics of high stretchability and robust electromagnetic shielding effectiveness was produced,and the key factors influencing the shielding efficiency were systematically clarified.In this work,the flexibility of relatively rigid stainless steel wires can be realized by using two sets of hollow spindle device in series,and the design of yarn structure and the configuration of the components within a wrapped yarn are responsible for the above results.The as-fabricated wrapped yarns a

关 键 词：含不锈钢丝弹力包覆纱 氨纶预牵伸倍数 模糊综合评判 可拉伸电磁屏蔽织物 屏蔽效能 

分 类 号：TS114[轻工技术与工程—纺织材料与纺织品设计]