空气网络包覆弹力纱中氨纶丝实际预牵伸倍数测试
|
摘要
为测试与评价空气网络包覆弹力纱的实际弹性,分析了空气网络包覆弹力纱的结构及其拉伸性能特征,提出了采用"力学拉伸曲线前段解析法"测算氨纶丝实际预牵伸倍数的方法;分析了典型无张力拉伸断裂曲线,给出了氨纶丝实际预牵伸倍数的计算方法,并对不同规格的空气网络包覆弹力纱进行了测试与分析。结果表明:采用无预加张力拉伸试验的方法,可测得氨纶丝预牵伸的伸长量;结合拉伸试验试样长度,可计算出氨纶丝的实际预牵伸倍数;氨纶丝实测预牵伸倍数均小于名义预牵伸倍数,二者差异的大小取决于预牵伸倍数以及氨纶丝的线密度。氨纶丝的预牵伸倍数越大,差异越大;氨纶丝的线密度越大,差异越小。
In order to test and evaluate the actual elasticity of the air covered elastic yarn,structure and tensile properties of air covered elastic yarns were analyzed,and the test method of actual pre-draft ratio of spandex by the analytical method of front section of the mechanical tensile curve was proposed. Typical non-pre-tensioning tensile curve was analyzed, and the calculation method of actual pre-draft multiplication of spandex was given. The testing and analysis of the air covered elastic yarns with different specifications were carried out. The results show that the tensile elongation of spandex filament can be measured by non-pre-tensioning tensile test. Combined with the specimen length of tensile testing,the actual pre-draft ratio of spandex filament can be calculated. The measured pre-draft ratios are always less than the nominal pre-draft ratios,and the difference between them depends on the pre-draft ratio and the linear density of spandex filament. The larger the pre-draft ratio of spandex filament is,the larger the difference. The larger the linear density of spandex filament is,the smaller the difference.
In order to test and evaluate the actual elasticity of the air covered elastic yarn,structure and tensile properties of air covered elastic yarns were analyzed,and the test method of actual pre-draft ratio of spandex by the analytical method of front section of the mechanical tensile curve was proposed. Typical non-pre-tensioning tensile curve was analyzed, and the calculation method of actual pre-draft multiplication of spandex was given. The testing and analysis of the air covered elastic yarns with different specifications were carried out. The results show that the tensile elongation of spandex filament can be measured by non-pre-tensioning tensile test. Combined with the specimen length of tensile testing,the actual pre-draft ratio of spandex filament can be calculated. The measured pre-draft ratios are always less than the nominal pre-draft ratios,and the difference between them depends on the pre-draft ratio and the linear density of spandex filament. The larger the pre-draft ratio of spandex filament is,the larger the difference. The larger the linear density of spandex filament is,the smaller the difference.
引文
[1]曾凡先,丁国强,肖伟农.丙氨网络丝的结构和性能探讨[J].上海纺织科技,1999,27(1):8-10.ZENG Fanxian,DING Guoqiang,XIAO Weinong.Study on structure and properties of polypropylene/spandex air covered yarn[J].Shanghai Textile Science&Technology,1999,27(1):8-10.
[2]虞树荣,吴子婴.氨纶包缠纱的形变力学性能研究[J].纺织学报,2002,23(3):184-185.YU Shurong,WU Ziying.Study on deformation mechanical properties of spandex wrapped yarn[J].Journal of Textile Research,2002,23(3):184-185.
[3]周元.氨纶及其包芯纱弹力性能探析[J].江苏纺织,2003,5:42-44.ZHOU Yuan.Analysis on elastic properties of spandex and its core-spun yarn[J].Jiangsu Textile,2003,5:42-44.
[4]何远方.氨纶丝预牵伸倍数对弹力纱线性能的影响[J].现代纺织技术,2011(6):4-6.HE Yuanfang.Influence of pre-draft ratio of spandex on elastic yarn performance[J].Modern Textile Technology,2011(6):4-6.
[5]范杰,陈人豪,李典英.氨纶包缠纱弹性性能研究[J].中国纤检,2006(3):31-33.FAN Jie,CHEN Renhao,LI Dianying.Study on elastic properties of spandex wrapped yarn[J].China Fiber Inspection,2006(3):31-33.
[6]张曙光.赛络纺与赛络紧密纺棉/氨包芯纱强伸性及弹性研究[J].上海纺织科技,2015,43(2):4-7.ZHANG Shuguang.The study of high extension and elasticity of siro spun&siro-compact spun cotton/spandex core-spun yarn[J].Shanghai Textile Science&Technology,2015,43(2):4-7.
[7]靳需岭,李营建.纯大豆蛋白纤维纱及豆/氨包芯纱蠕变性能研究[J].河南工程学院学报(自然科学版),2012,24(1):22-26.JIN Xuling,LI Yingjian.Study of pure soybean protein yarn and creep property model of soybean/spandex core-spun yarns[J].Journal of Henan Institute of Engineering(Natural Science Edition),2012,24(1):22-26.
[8]赵永秀,赵文艳.毛氨包芯纱的测试方法[J].毛纺科技,2000,28(2):47-50.ZHAO Yongxiu,ZHAO Wenyan.Test method for wool/spandex core-spun yarn[J].Wool Textile Journal,2000,28(2):47-50.
[9]于永玲,李淳.氨纶包芯纱性能的简易检测方法[J].大连轻工业学院学报,2001,20(3):213-214.YU Yongling,LI Chun.Simple method testing core-spun spandex performance[J].Journal of Dalian Institute of Light Industry,2001,20(3):213-214.
[10]于伟东.纺织材料学[M].北京:中国纺织出版社,2008:31,79.YU Weidong.Textile Materials[M].Beijing:China Textile&Apparel Press,2008:31,79.
[2]虞树荣,吴子婴.氨纶包缠纱的形变力学性能研究[J].纺织学报,2002,23(3):184-185.YU Shurong,WU Ziying.Study on deformation mechanical properties of spandex wrapped yarn[J].Journal of Textile Research,2002,23(3):184-185.
[3]周元.氨纶及其包芯纱弹力性能探析[J].江苏纺织,2003,5:42-44.ZHOU Yuan.Analysis on elastic properties of spandex and its core-spun yarn[J].Jiangsu Textile,2003,5:42-44.
[4]何远方.氨纶丝预牵伸倍数对弹力纱线性能的影响[J].现代纺织技术,2011(6):4-6.HE Yuanfang.Influence of pre-draft ratio of spandex on elastic yarn performance[J].Modern Textile Technology,2011(6):4-6.
[5]范杰,陈人豪,李典英.氨纶包缠纱弹性性能研究[J].中国纤检,2006(3):31-33.FAN Jie,CHEN Renhao,LI Dianying.Study on elastic properties of spandex wrapped yarn[J].China Fiber Inspection,2006(3):31-33.
[6]张曙光.赛络纺与赛络紧密纺棉/氨包芯纱强伸性及弹性研究[J].上海纺织科技,2015,43(2):4-7.ZHANG Shuguang.The study of high extension and elasticity of siro spun&siro-compact spun cotton/spandex core-spun yarn[J].Shanghai Textile Science&Technology,2015,43(2):4-7.
[7]靳需岭,李营建.纯大豆蛋白纤维纱及豆/氨包芯纱蠕变性能研究[J].河南工程学院学报(自然科学版),2012,24(1):22-26.JIN Xuling,LI Yingjian.Study of pure soybean protein yarn and creep property model of soybean/spandex core-spun yarns[J].Journal of Henan Institute of Engineering(Natural Science Edition),2012,24(1):22-26.
[8]赵永秀,赵文艳.毛氨包芯纱的测试方法[J].毛纺科技,2000,28(2):47-50.ZHAO Yongxiu,ZHAO Wenyan.Test method for wool/spandex core-spun yarn[J].Wool Textile Journal,2000,28(2):47-50.
[9]于永玲,李淳.氨纶包芯纱性能的简易检测方法[J].大连轻工业学院学报,2001,20(3):213-214.YU Yongling,LI Chun.Simple method testing core-spun spandex performance[J].Journal of Dalian Institute of Light Industry,2001,20(3):213-214.
[10]于伟东.纺织材料学[M].北京:中国纺织出版社,2008:31,79.YU Weidong.Textile Materials[M].Beijing:China Textile&Apparel Press,2008:31,79.