摘要
为解决纯棉低捻纱纺制过程中纺纱段动态捻度低且成纱性能较差的问题,设计了一种能够改善低捻纱性能的环锭纺给湿假捻装置。该装置通过假捻带改变纱线动态捻度分布,以改善纺纱三角区的形态和张力;利用给湿装置产生的水雾润湿贴伏低捻纺纱段的纱线毛羽,便于毛羽卷入纱体内部。对3种不同材质的假捻带及假捻速比进行了对比,分析了假捻与雾化给湿的协同作用对不同捻系数纯棉低捻纱性能的影响。结果表明:硅胶材质假捻带对改善纱线性能效果明显,结合雾化给湿的协同作用,优选速比为1.0,对应成纱S3毛羽比普通纱降低49.2%,捻系数为260时所纺C 14.6 tex纱线强力,与捻系数280时普通纱相当。认为:采用硅胶假捻带与雾化给湿协同作用,对降低纯棉低捻纱的纺纱难度和改善纱线性能效果较好。
In order to solve problems of lower dynamic twist and worse yarn property in spinning process of pure cotton low-twist yarn,a ring spinning wet false twist device was designed to improve the property of low-twist yarn.Dynamic twist distribution of the yarn was changed through false twist belt on the device to improve morphology and tension of the spinning triangle.The water mist generated by the wetting device was used to wet the yarn hairiness of the low twist spinning section,which was convenient for the hairiness to be drawn into the yarn body.Three kinds of false twist belts and false twist speed ratios were compared.Synergistic effect of false twist and atomization humidification on the property of low-twist cotton yarns with different twist coefficients were analyzed.Results showed that the silica gel false twist belt had obvious effect on improving the yarn property.Combined with the synergistic effect of atomization and moisture supply,the speed ratio is optimized as 1.0.Corresponding yarn S3hairiness was decreased 49.2%comparing to the ordinary yarn.When the twist coefficient was 260,C 14.6 tex yarn strength is equivalent to that of the ordinary yarn with twist coefficient 280.It is considered that the synergistic effect of silica gel false twist belt and atomized moisture supply can reduce the spinning difficulty of pure cotton low-twist yarn and improve the yarn property.
作者
房文鹏
郭明瑞
高卫东
FANG Wenpeng;GUO Mingrui;GAO Weidong(Jiangnan University,Wuxi,214122,China)
出处
《棉纺织技术》
CAS
北大核心
2022年第11期32-37,共6页
Cotton Textile Technology
基金
国家自然科学基金项目(52003105)
江苏省博士后科研资助计划项目(2020Z140B)。
关键词
环锭纺
假捻带
雾化给湿
低捻纱
硅胶
聚氨酯
毛羽
断裂强度
ring spinning
false twist
atomized moistening
low-twist yarn
silica gel
polyurethane
hairiness
breaking tenacity
