Media.Player

Method and Apparatus for Reducing Residual Torque and Neps in Singles Ring Yarns

Summary

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.

Supplementary Information

Patent Number: US8544252B2
Application Number: US13343723A
Inventor: Tao, Xiaoming | Hua, Tao | Xu, Bingang | Feng, Jie
Priority Date: 4 Aug 2008
Priority Number: US8544252B2
Application Date: 5 Jan 2012
Publication Date: 1 Oct 2013
IPC Current: D01H000752
US Class: 057075 | 057336
Assignee Applicant: The Hong Kong Polytechnic University
Title: Method and apparatus for reducing residual torque and neps in singles ring yarns
Usefulness: Method and apparatus for reducing residual torque and neps in singles ring yarns
Summary: Method for reducing residue torque in torque-free singles ring yarns produced by a ring spinning apparatus utilized in a textile industry.
Novelty: Method for reducing residue torque in torque-free singles ring yarns produced by ring spinning apparatus, involves imparting false twist to strand of traveling fibers after strand passes twisting point

Industry

Textile/fashion

Sub Category

Fabric Engineering

Application No.

US13343723A

Others

TAO Xiaoming
HUA Tao
XU Bingang
FENG Jie

Country/Region

USA