Method of reordering fibres in a web
US4119447A · kind A · utility
7Cited by
3References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 1977 |
| Grant date | Oct 10, 1978 |
| Priority date | — |
| Expiry date | Apr 4, 1997 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29C66/71
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fibres in a web are redistributed by ultrasonic vibration between two rigid members, for example to unite two webs together or to create a pattern of fibre orientation and fibre density; and preferably one of the members is a forwarding roll which forwards the web into a zone of increasing vibration in which fibres are bonded after redistribution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.