Influence factor on draft force in spinning draft and relation of top apron tension & yarn quality is analyzed.
分析了细纱牵伸过程中影响牵伸力的因素，上胶圈张力状态与成纱质量的关系。
The practice shows that optimizing spinning draft apparatus and configuring spinning processing reasonably can enhance yarn quality.
实践表明，优选新型细纱牵伸器材，合理配置纺纱工艺，有利于成纱质量的稳定提高。
The trial spinning shows that the spinning draft processing of innovated draft set is reasonable, and the innovation enlarge the choice range of spinning processing and enhance yarn quality.
改造后试纺结果表明，仿R2P牵伸形式的细纱牵伸工艺设计合理，扩大了纺纱工艺选择范围，提高了成纱质量。
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