Nonwoven fabric patterned with apertures
US4840829A · kind A · utility
132Cited by
2References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1987 |
| Grant date | Jun 20, 1989 |
| Priority date | — |
| Expiry date | Dec 29, 2007 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24273
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A nonwoven fabric patterned with apertures comprising nonwoven fabric areas into which individual fibers are gathered and entangled together and continuously from which said fibers are branched, and circular or elliptical apertures defined by said areas in a regular pattern. Such nonwoven fabric is produced by treating a fibrous web on a support having thereon a plurality of projections distributed at predetermined intervals with a high speed water jet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.