摘要
针对转杯纺长丝/短纤复合纱成纱过程中长丝与短纤的复合点位置会影响复合纱的成纱结构和性能问题,通过对成纱过程中长丝、短纤和复合纱进行力学分析,建立转杯纺复合纱长丝与短纤复合过程的准静态力学模型。利用建立的模型,在不同转杯半径、长丝与复合纺纱速度比条件下,对棉/涤(58 tex/7.8 tex)复合纱的复合点位置进行求解。所得结果表明:转杯纺复合纱复合点的x位置主要取决于转杯半径;y位置主要取决于长丝喂入张力和复合纱卷绕张力之比;在转杯纺长丝/短纤复合纱的成纱过程中存在2个成形点,即短纤成纱点和短纤束与长丝复合成纱点。求解结果可较好地解释生产中的疑点和难点。
The structure and characteristics of the composite yarn depend mainly upon where and how the two strands of fiber or filament are combined and mixed.This study established a mathematical model for static rotor-spun composite yarn spinning process based on mechanical analysis of the filaments,staples during composite yarn forming.Using the static model,the coordinates of convergent point under different spinning parameters of cotton/polyester（58 tex/7.8 tex） composite yarn are calculated.The results demonstrate that the convergent point x mainly changes with the radius of the rotor,and y changes with the tension of the feeding filament.There are two yarn forming points during the spinning process,i.e.,the point of staple fibers twisted as yarn,and the point of the staple-fiber yarn twisted with filament as composite yarn.Therefore,technical difficulties in rotor-spun composite yarn spinning process can be explained theoretically with these findings.
出处
《纺织学报》
EI
CAS
CSCD
北大核心
2011年第4期39-42,56,共5页
Journal of Textile Research
基金
中央高校基本科研业务费专项资金资助(JUSRP10903)
关键词
转杯纺
复合纱
复合点位置
结构
模型
工艺参数
rotor spinning
composite yarn
convergent point
structure
model
spinning parameter
