PolyU IR
 

PolyU Institutional Repository >
Textiles and Clothing >
ITC Patents >

Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/162

Title: Method and apparatus for manufacturing a singles ring yarn
Authors: Tao, Xiaoming
Xu, Bingang
Wong, Sing-kee Eric
Subjects: Singles ring yarn
Issue Date: 29-Aug-2006
Citation: US Patent 7,096,655 B2. Washington, DC: US Patent and Trademark Office, 2006.
Abstract: In a process for manufacturing a singles ring yarn, firstly a first twist is supplied to a strand of traveling drafted fibers at a false twist device for producing a preliminary singles yarn. The false twist device rotates at a first speed for twisting the fibers. Immediately after the first twisting step, a joint twist of a second twist in the same direction as the first twist and a third twist in a reversed direction is supplied to the preliminary yarn for producing a final singles ring yarn. The second twist is produced by a rotatable take-up package onto which the final singles yarn is drawn. The reversed twist results in correspondence to the first twist, and the take-up package rotates at a second speed. The final singles yarn is then drawn onto the take-up package. Furthermore, a ratio of the first speed to the second speed is controlled for controlling the amount of a residual torque in the final singles ring yarn.
Rights: Assignee: The Hong Kong Polytechnic University.
Type: Patent
URI: http://hdl.handle.net/10397/162
Appears in Collections:ITC Patents
Patents of PolyU

Files in This Item:

File Description SizeFormat
us7096655b2.pdf872.46 kBAdobe PDFView/Open



Facebook Facebook del.icio.us del.icio.us LinkedIn LinkedIn


All items in the PolyU Institutional Repository are protected by copyright, with all rights reserved, unless otherwise indicated.
No item in the PolyU IR may be reproduced for commercial or resale purposes.

 

© Pao Yue-kong Library, The Hong Kong Polytechnic University, Hung Hom, Kowloon, Hong Kong
Powered by DSpace (Version 1.5.2)  © MIT and HP
Feedback | Privacy Policy Statement | Copyright & Restrictions - Feedback