Pile fabric with non-mushroom shaped cut ends
US4539242A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 5, 1984 |
| Grant date | Sep 3, 1985 |
| Priority date | — |
| Expiry date | Jun 5, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/23964
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A cut pile fabric such as a velvet composed of a synthetic fiber pile having deep color shade and smooth touch on its pile surface, the piles thereof having non-mushroom shaped cut ends at their tip portions, defined by the equation d.sub.1 /d.sub.2 .ltoreq.1.3, where d.sub.1 is the maximum diameter of the tip portion and d.sub.2 is a diameter of the remaining portion of the piles. The pile fabric is obtained by utilizing, as a pile yarn, a synthetic yarn having a breakage strength of less than 2.8 g/De, a primary yielding strength of more than 1.2 g/De, a breakage elongation of less than 50%, and a primary yielding elongation of less than 10%. Such synthetic yarn can advantageously be prepared by a crystallization drawing process.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.