【摘要】 为了提高C 36.4 tex+2.0 tex弹力纱的纱线强力，详细分析前纺工序、细纱工序、自络工序对纱线强力的影响因素；阐明应在前纺工序重点解决混棉不匀、控制短绒产生、避免末并熟条质量不匀和偏轻等问题，细纱工序应严格控制细纱捻度不匀，自络工序应重点抓好接头工作，同时加强各工序温湿度管理等解决措施。指出：技术攻关后，该弹力纱强力极差降至80 cN,最小强力提高至470 cN,单纱平均强力达550 cN以上，强力CV值达到6%～8%的良好水平。更多还原

【Abstract】 In order to improve the yarn strength of C 36.4 tex+2.0 tex elastic yarn, the influence factors of fore-spinning process, spinning process and automatic winding process on yarn strength are analyzed in detail.It is stated that the problems of uneven cotton blending, control of short fiber generation, and avoid uneven and light quality of drawing sliver in final drawing process should be solved in the fore-spinning process.The twist unevenness of the spinning yarn should be strictly controlled in the spinning process.The joint work should be focused on in the automatic winding process.The solutions such as temperature and humidity management in each process have been strengthened at the same time.It is pointed out that after the technical breakthrough, the strength range of the elastic yarn is reduced to 80 cN,the minimum strength is increased to 470 cN,the average strength of single yarn is more than 550 cN,and the CV value of strength reaches a good level of 6%～8%.更多还原