False twisting yarn and production method thereof
US7958714B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 11, 2007 |
| Grant date | Jun 14, 2011 |
| Priority date | — |
| Expiry date | Mar 22, 2028 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD02G1/06
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A false twisting yarn composed of monofilaments containing a polyester component of which main component is polytrimethylene terephthalate, wherein the false twisting yarn is a false twisting yarn which satisfies all of the requirements of (1) a shrinkage ratio by wet heat treatment at 98° C. for 20 minutes is 5% or less, (2) a ratio (TS/WS) of elastic stretch ratio after wet heat treatment at 90° C. for 20 minutes (WS) and elastic stretch ratio after dry heat treatment at 90° C. for 15 minutes (TS) is, 0<TS/WS≦1, and (3) a tensile strength is 2.0 cN/dtex or more. By using the false twisting yarn, it is possible to produce a pile cloth having a soft touch and a low shrinkage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.