Forming of felts which have an isotropic structure
US4964978A · kind A · utility
3Cited by
11References
9Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 9, 1984 |
| Grant date | Oct 23, 1990 |
| Priority date | — |
| Expiry date | Jul 9, 2004 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD04H1/732
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method of forming felts, the fibers of which are disposed in random directions, by depositing the fibers which are carried by a current of gas on a gas-permeable conveyor, the fibers, prior to being deposited, being coated with a binder composition. The felt constituted on the conveyor is subjected to at least one 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, tearing and flexion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.