Device for the manufacture of non-woven fabrics with impressed or embossed designs
US4691417A · kind A · utility
29Cited by
6References
4Claims
0Family size
Inventor
Key dates
| Filing date | Nov 18, 1983 |
| Grant date | Sep 8, 1987 |
| Priority date | — |
| Expiry date | Nov 18, 2003 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H18/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention involves an injector which propels a curtain of water through perforations in a rotating cylinder. The curtain of water hits a non-woven fiber sheet at an angle, and the splashback is collected in a suction chamber. The width of the curtain of water is adjustable, and self-cleaning of the injector can take place while the machine is in operation. The invention is used for the production of perforations or embossed designs on non-woven fabric whether the fiber sheet is produced by the dry method or the wet method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.