纺织学报 ›› 2017, Vol. 38 ›› Issue (12): 43-48.

• 纺织工程 • 上一篇    下一篇

不同引纱方法对云纹纱成纱外观及质量的影响

  

  • 收稿日期:2016-12-21 修回日期:2017-03-12 出版日期:2017-12-15 发布日期:2017-12-18

Influence of different drawing methods on appearance and yarn quality of cloud yarn

  • Received:2016-12-21 Revised:2017-03-12 Online:2017-12-15 Published:2017-12-18

摘要:

为改善云纹纱外观及提高其成纱质量,探究了3种不同引纱方法对云纹纱成纱外观及质量的影响。在牵伸细纱机上分别纺制29.2、14.6、9.7、7.3 和5.8 tex的云纹纱,对每种线密度的云纹纱,保证其他工艺参数一致,通过改变饰纱的喂入方式纺制而得,即饰纱分别从细纱机后罗拉、中后罗拉、中前罗拉喂入。通过观察成纱外观,并对其强伸性能、条干、毛羽指标进行测试和对比分析。结果表明:不同的引纱方法会产生不同的成纱外观,较其他2种方式,饰纱从中后罗拉喂入时,所纺成的云纹纱成纱3 mm内有益毛羽较多,3 mm以上有害毛羽较少,强力及成纱品质指数均高于其他2 种方式,成纱质量较优,且成纱包缠结构较为紧密,立体感更强。

关键词: 云纹纱, 断裂强力, 毛羽, 条干

Abstract:

In order to improve the appearance and increase the yarn quality of cloud yarn, the influences of three different drawing methods on the appearance and yarn quality of cloud yarn were discussed. Different cloud yarns of 29.2 tex / 14.6 tex/9.7 tex/7.3 tex/5.8 tex were spun on TH558 super high draft ring spinning machine, which was equipped with four-line draft system and four roller by changing the feeding way of decorative yarn, namely feeding from the back roller, medium-back roller and medium-front roller of spinning frame respectively under the condition of same other process parameters. Using VHX-5000 digital microscopic system to observe and analyze the appearance of cloud yarn, and gave a testing and comparative analysis for its tensile property, evenness and hairiness. The results show that different drawing methods will produce different yarn appearance, and compared with the other two ways, the yarn spun by decorative yarn feeding from the medium-back roller has a better yarn quality, namely more useful hairiness(within 3mm) and less harmful hairiness(beyond 3mm), higher strength and yarn quality index. Also, its structure is relatively compact and the three-dimension effect is stronger.

Key words: cloud yanr, breaking strength, hairiness, evenness

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