Apparatus for forming of felts which have an isotropic structure
US4632685A · kind A · utility
10Cited by
6References
6Claims
0Family size
Inventors
Key dates
| Filing date | Feb 15, 1985 |
| Grant date | Dec 30, 1986 |
| Priority date | — |
| Expiry date | Feb 15, 2005 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/732
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to the forming of felts, the fibres of which are disposed in random directions. These felts are obtained by depositing the fibres which are carried by a current of gas on a gas-permeable conveyor, the fibres, prior to being deposited, being coated with a binder composition. The felt constituted on the conveyor is subject to at least a longitudinal compression, the intensity of which is regulated in such a way that no creases form on the surface. The felts obtained are highly resistant to compression, to tearing and to flexion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.