Method of making machine direction stretchable nonwoven fabrics having a high degree of recovery upon elongation
US6375889B1 · kind B1 · utility
11Cited by
15References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 16, 1999 |
| Grant date | Apr 23, 2002 |
| Priority date | — |
| Expiry date | Apr 16, 2019 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/495
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of producing a non-woven fabric having a high recovery after elongation and a substantially uniform surface including the steps of microcrepeing the fabric between about 20% and 35%, and heat setting the fabric to a temperature between its glass transition temperature and its melting temperature. A non-woven fabric having a recovery of at least 40% after five cycles of 35% elongation is made from a microcreped fabric of basis weight from 1-3.5 osy. The non-woven fabric has a uniform surface that is substantially free of bunching, gathering, and that is otherwise substantially flat to the eye and touch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.