Nonwoven fabric having elastometric and foam-like compressibility and resilience and process therefor
US5454142A · kind A · utility
21Cited by
14References
24Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 31, 1992 |
| Grant date | Oct 3, 1995 |
| Priority date | — |
| Expiry date | Dec 31, 2012 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/667
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A needlepunch fabric of staple polyester fibers is disclosed that is elastomeric and has foam-like compressibility and resilience. The polyester staple is formed of fibers having a differential birefringence. Mechanically crimped fibers are carded, crosslapped, and needlepunched to from about 150 to 1500 ppsi, and the resultant fabric is heated to from about 120.degree. to 240.degree. C. to induce a latent crimp in the fabric and to develop the elastomeric and foam-like properties of the fabric.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.