Highly crimpable spunbond conjugate fibers and nonwoven webs made therefrom
US5622772A · kind A · utility
61Cited by
32References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 28, 1995 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Jul 28, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/681
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention provides conjugate fibers having an ethylene polymer component and a propylene polymer component, which are highly crimpable even at fine deniers. Also provided are nonwoven fabrics made from the fibers. The propylene polymer component of the conjugate fiber contains a propylene polymer having a melt flow rate between about 50 g/10 min. and 200 g/10 min. as measured in accordance with ASTM D1238, Testing Condition 230/2.16.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.