Non-woven webs and method for the dry production thereof
US4091161A · kind A · utility
5Cited by
4References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 30, 1976 |
| Grant date | May 23, 1978 |
| Priority date | — |
| Expiry date | Jan 30, 1996 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/699
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A nonwoven uniform web is formed from particulate material and a binding agent in a moving conveyor belt. The material is fed to the belt through a cowl in a random fashion and air is removed from the material; the layer of material is subsequently thinned by a peak removal device and is precalendered, rolled and then heated to activate the binding agent. The resulting web has similar mechanical properties in length direction and width direction, and has a high elastic recovery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.