Nonwoven webs having improved softness and barrier properties
US6372172B1 · kind B1 · utility
13Cited by
17References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 1997 |
| Grant date | Apr 16, 2002 |
| Priority date | — |
| Expiry date | Dec 19, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/682
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A nonwoven material including at least a meltblown web is stretched by about 1-35% in at least one direction using a short-distance drawing process, to provide a fabric having improved softness and liquid barrier compared to otherwise similar fabrics prepared using longer drawing distances. The drawing process may include one or multiple stages. When multiple stages are employed, the fabric has adequate liquid barrier at a lower basis weight.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.