Influence factor on draft force in spinningdraft 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。
2
The practice shows that optimizing spinningdraft 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。
3
The trial spinning shows that the spinningdraft processing of innovated draft set is reasonable, and the innovation enlarge the choice range of spinning processing and enhance yarn quality.