Method for increasing the internal bulk of wet-pressed tissue
US5510002A · kind A · utility
183Cited by
3References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 14, 1994 |
| Grant date | Apr 23, 1996 |
| Priority date | — |
| Expiry date | Sep 14, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F11/006
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The internal bulk of a tissue web can be improved during manufacturing of the basesheet by subjecting the tissue web to differential pressure while supported on a coarse fabric at a consistency of about 30 percent or greater. The differential pressure, such as by applying vacuum suction to the underside of the coarse fabric, causes the wet web to deflect into the openings or depressions in the fabric and "pop" back, resulting in a substantial gain in thickness or internal bulk. The method is especially adapted to improve the internal bulk of wet-pressed tissue webs.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.