Invention Grant
US08544252B2 Method and apparatus for reducing residual torque and neps in singles ring yarns
有权
用于减少单纱环纱中剩余扭矩和棉结的方法和装置
- Patent Title: Method and apparatus for reducing residual torque and neps in singles ring yarns
- Patent Title (中): 用于减少单纱环纱中剩余扭矩和棉结的方法和装置
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Application No.: US13343723Application Date: 2012-01-05
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Publication No.: US08544252B2Publication Date: 2013-10-01
- Inventor: Xiaoming Tao , Tao Hua , Bingang Xu , Jie Feng
- Applicant: Xiaoming Tao , Tao Hua , Bingang Xu , Jie Feng
- Applicant Address: CN Hong Kong
- Assignee: The Hong Kong Polytechnic University
- Current Assignee: The Hong Kong Polytechnic University
- Current Assignee Address: CN Hong Kong
- Agency: Duane Morris LLP
- Agent Siegfried J. W. Ruppert
- Main IPC: D01H7/52
- IPC: D01H7/52

Abstract:
Method and apparatus for reducing residual torque in singles ring yarns, achieved by imparting two separate false twisting points on the traveling strand of fibers (or yarn) after the strand exits from the spinning triangle with a proper ratio between the belt speed and the strand feeding speed. In addition to reducing the residual torque, this double false twist technique also reduces yarn hairiness to the same level as achieved by more expensive compact spinning devices, reduces yarn twist by more than 20% and significantly enhances yarn and fabric softness. Furthermore, by combining the double false twist technique with a compact spinning device, the numbers of neps, thick and thin places are significantly reduced to produce high-quality yarns and fine-count yarns.
Public/Granted literature
- US20120151894A1 Method And Apparatus For Reducing Residual Torque And Neps In Singles Ring Yarns Public/Granted day:2012-06-21
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