Heat-fusible composite fiber and non-woven fabric produced from the same
US6156679A · kind A · utility
21Cited by
0References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 20, 1998 |
| Grant date | Dec 5, 2000 |
| Priority date | — |
| Expiry date | Aug 20, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/641
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
There is disclosed a heat-fusible composite fiber comprising a sheath component of a crystalline propylene copolymer resin having a low melting point and a core component of a crystalline polypropylene resin having a higher melting point, wherein said fiber has a resistance of incipient tension of 5 to 15 gf/D {44.1.times.10.sup.-3 to 132.4.times.10.sup.-3 N/dtex} and a heat shrinkage of 15 percent or less at 140.degree. C. over 5 minutes, as well as a non-woven fabric made of such a fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.