Nonwoven fabric
US7507463B2 · kind B2 · utility
85Cited by
7References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 1, 2007 |
| Grant date | Mar 24, 2009 |
| Priority date | — |
| Expiry date | Jun 1, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/60
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A nonwoven fabric adjusted so that the fiber densities of convex portions and recessed portions are not excessively high. A plurality of open portions is formed by blowing fluid mainly composed of gas from the top side of a fiber web onto the fiber web supported from the bottom side thereof by a supporting member, and moving fiber constituting the fiber web. The nonwoven fabric is formed with the plurality of open portions continuously formed at predetermined intervals along a predetermined direction and a plurality of joining portions formed between the open portions adjacent thereto in a predetermined direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.