热处理工艺对喷气涡流纺低熔点涤纶长丝包芯纱力学性能的影响  

Effect of heat treatment on mechanical property of core-spun yarn from low melting point polyester filament made by air-jet vortex spinning

作　　者：缪璐璐 孟小奕 董正梅 彭倩 何林伟 邹专勇[1,2] MIAO Lulu;MENG Xiaoyi;DONG Zhengmei;PENG Qian;HE Linwei;ZOU Zhuanyong(Key Laboratory of Clean Dyeing and Finishing Technology of Zhejiang Province,Shaoxing University,Shaoxing,Zhejiang 312000,China;Shaoxing Key Laboratory of High Performance Fibers&Products,Shaoxing University,Shaoxing,Zhejiang 312000,China;Shaoxing Guozhou Textile New Material Co.,Ltd.,Shaoxing,Zhejiang 312000,China;Shaoxing Guozhou Textile Finishing Co.,Ltd.,Shaoxing,Zhejiang 312030,China)

机构地区：[1]绍兴文理学院浙江省清洁染整技术研究重点实验室,浙江绍兴312000 [2]绍兴文理学院绍兴市高性能纤维及制品重点实验室,浙江绍兴312000 [3]绍兴国周纺织新材料有限公司,浙江绍兴312000 [4]绍兴国周纺织整理有限公司,浙江绍兴312030

出　　处：《纺织学报》2024年第11期73-79,共7页Journal of Textile Research

基　　金：国家自然科学基金项目(51573095);国家级大学生创新创业训练计划项目(201910349028)。

摘　　要：为进一步提升喷气涡流纺包芯纱的力学性能,发挥低熔点长丝的热熔型黏合特性,制备低熔点涤纶长丝喷气涡流纺包芯纱,基于Box-Behnken Design响应面法,探究非接触式热处理过程中牵伸倍数、热处理速度和热处理温度3个因素对包芯纱断裂强度、断裂伸长率和断裂功的影响规律,并进行热处理工艺优化。研究结果表明:热处理温度和牵伸倍数减小、热处理速度增大,有利于包芯纱的断裂强度、断裂伸长率、断裂功的增大。通过响应优化,得到低熔点涤纶长丝喷气涡流纺包芯纱的最佳热处理工艺:热处理温度为130℃;速度为9000 mm/min;牵伸倍数为1.00。经过最优热处理工艺加工后包芯纱断裂强力提高7.64%,断裂伸长率提高9.34%,断裂功提高13.78%。Objective Low melting point polyester fiber can be used as a hot-melt adhesive material.The strength of air-jet vortex spinning core-spun yarn is closely related to the mechanical properties of core-filament.We replace the core-filament of the air-jet vortex spinning core-spun yarn with a low melting point filament.By studying the appropriate heat treatment process,it can not only help the core-filament to maintain a certain mechanical properties,but also use the effect of thermal bonding enhancement of low melting point fibers to further improve the strength of air-jet vortex spinning core-spun yarn.Method The core-spun yarn with low melting point polyester filament wrapped by polyester staple fiber was produced on MVS No.870 spinning machine,and the yarn was subjected to non-contact heat treatment on the XPLORE flat traction heating device.The heat treatment process was designed based on Box-Behnken Design(BBD)response surface.The effects of heat treatment temperature,heat treatment speed and draft multiple on the breaking strength,breaking elongation and breaking work of core-spun yarn were investigated by statistical analysis method.At the same time,the response value was optimized to obtain the best heat treatment scheme for the preparation of high strength core-spun yarn.Results The breaking strength of the core-spun yarn was significantly affected by heat treatment temperature,heat treatment speed,draft multiple,as well as the interaction term of heat treatment temperature and heat treatment speed.The breaking elongation was significantly affected by heat treatment temperature,heat treatment speed,draft multiple,draft multiple secondary term,heat treatment temperature and heat treatment speed interaction term,and heat treatment speed and draft multiple interaction term.The breaking work was significantly affected by heat treatment temperature,heat treatment speed,draft multiple,heat treatment temperature secondary term,and heat treatment temperature and heat treatment speed interaction term.By analyzing co

关 键 词：喷气涡流纺包芯纱 低熔点长丝 热处理工艺 纱线力学性能 纺纱工艺 

分 类 号：TS104.2[轻工技术与工程—纺织工程]