...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Textile Asia >Cotton & polyester in OE friction-spinning
【24h】

Cotton & polyester in OE friction-spinning

机译：OE纺纱中的棉和涤纶

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The evaluation of stress/strain characteristics of yarns is vital in determining their end-use behaviour. To make open-end friction-spun yarns, it is necessary to introduce fibre into the appropriate shear zone. A popular solution is to make at least one of the moving surfaces a non-flat solid. This permits a fibre supply channel to be brought close to the torque zone, which helps control the fibre-assembly process. In this case the torque is generated by the oppositely moving surfaces, and by the arrival of the yarn by one of those surfaces or by the yarn itself. However, the emerging yarn does not rotate, and only a rotating envelope of fibres at the open end is capable of twisting in the arriving fibres. The direction of arrival of the fibres is said to be more or less opposite to the direction of departure of the yarn. This is called "backwards spinning". However it is quite possible for the fibres to approach at other angles with respect to the yarn. The best arrangement is yet to be determined, though variations in the angle of approach is not a very powerful factor. Implementing this concept requires that the location of the open end of the yarn remain fixed with relation to the moving surfaces and that a sufficient normal force be present for twisting. This can be accomplished by sucking the fibres to a limited local surface as they are supplied.
机译：评估纱线的应力/应变特性对于确定其最终使用行为至关重要。为了制造开口端摩擦纺纱，必须将纤维引入适当的剪切区。一种流行的解决方案是将至少一个运动表面制成非平坦的实体。这样可以使光纤供应通道靠近扭矩区域，从而有助于控制光纤组装过程。在这种情况下，扭矩由相对运动的表面产生，并且由那些表面之一或纱线本身到达纱线而产生。但是，冒出的纱线不会旋转，只有在开放端的旋转纤维包络能够捻入到达的纤维。据说纤维的到达方向或多或少地与纱线的离开方向相反。这称为“向后旋转”。但是，纤维很可能相对于纱线以其他角度接近。尽管进近角的变化并不是一个非常重要的因素，但最佳的布置方法尚待确定。实施该概念要求纱线的开口端的位置相对于运动表面保持固定，并且存在足够的法向力来进行加捻。这可以通过在供应纤维时将纤维抽吸到有限的局部表面来实现。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号