Process and system for reorienting fibers in a foam forming process
US11091879B2 · kind B2 · utility
2Cited by
0References
18Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2019 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Dec 19, 2039 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H21/56
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A process for foam forming tissue or paper webs is disclosed. A foamed suspension of fibers is deposited onto a forming fabric and contacted with a gas flow prior to drying the web. For instance, the web can contact the gas flow prior to dewatering the web. The gas flow can have a volumetric flow rate and/or a velocity sufficient to rearrange the fibers within the web. In one embodiment, for instance, the gas flow can increase the caliper of the web, the stretch properties of the web, and/or the absorbency characteristics of the web. In one embodiment, the gas flow can be pulsed for producing a web with a distinctive pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.