Selectively apertured nonwoven web
US5916661A · kind A · utility
417Cited by
6References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 3, 1997 |
| Grant date | Jun 29, 1999 |
| Priority date | — |
| Expiry date | Mar 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24826
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The present invention provides a method for selectively aperturing a nonwoven web. A nonwoven web is weakened along a plurality of locations and then a tensioning force is applied to the nonwoven web causing the nonwoven web to rupture at the plurality of weakened location creating a plurality of apertures in the nonwoven web coincident with the weakened locations
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.