Method and device for producing a spunbonded nonwoven fabric
US7504062B2 · kind B2 · utility
1Cited by
13References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 2002 |
| Grant date | Mar 17, 2009 |
| Priority date | — |
| Expiry date | Oct 4, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD01D5/0985
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method and apparatus for the production of a spunbonded nonwoven fabric, by spinning a linear filament sheet of filaments arranged parallel next to one another, in the form of a curtain, from a plurality of spinning capillaries, with aerodynamic take-off and stretching of the filament sheet, where the filament sheet (8) that exits from the stretching channel (12) or is drawn off a spool is moved laterally, crosswise, by an air stream, the direction of which changes periodically, where the air stream is alternately directed at a slant to the filament sheet (8), seen in the horizontal plane.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.