摘要
主要研究紧密赛络纺纱线的成纱结构与性能,尤其是其股线特征,为紧密赛络纺工艺一次成股线奠定基础。首先,以捻系数、吸风槽型号和吸气负压为三因素,设计了三因素三水平正交试验,测试纱线的强力、条干、毛羽、粗节、细节和棉结等物理性能,并在显微镜下观察纱线结构;其次,通过运用CFD软件对集聚区的流场和纤维轨迹进行模拟和理论分析。试验结果为:当捻系数为390,选用第二种吸风槽,吸风负压为-2 500 Pa时,所纺纱线性能较优;两根须条距离为8 mm进入槽开口时,须条的集聚效果取决于须条间距是否能使集聚区的负压充分发挥作用。试验结果可为紧密赛络纺一次成股线提供参考。
The structure and properties of compact-siro yarn are analyzed and studied, especially the plied yarn characteristic, to lay the foundation for compact siro spinning technology of one-time plied yarn. Firstly, three-factors-three-levels orthogonal experiment with twist factor, suction slot type and inspiratory pressure as factors is designed. And the physical properties such as strength, evenness, hairiness slub, details and nep are tested for the spinned yarn and compared yarn, and yarn structure is observed under microscope. Secondly, the CFD software is used to simulate and theoretically analyze the flow field and the fiber trajectory in cluster zone to further explain the experiment phenomenon. The results show that when the twist factor is 390 with the second first suction slots, suction negative pressure is 2 500 Pa, the performance of the yarn is optimal. The accumulative effect of fiber strands depends on whether the distance between the strands make the negative pressure in the accumulation area play the role. The experimental results could provide the reference for compact siro spinning of one-time plied yarn.
出处
《上海纺织科技》
北大核心
2017年第4期31-34,共4页
Shanghai Textile Science & Technology
关键词
紧密赛络纺
结构
性能
数值模拟
股线特征
compact-siro spinning
structure
property
numerical simulation
plied yarn characteristic
