Papermaking belts having offset openings, papermaking processes using belts having offset openings, and paper products made therefrom
US11578460B2 · kind B2 · utility
0Cited by
6References
37Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2020 |
| Grant date | Feb 14, 2023 |
| Priority date | — |
| Expiry date | Sep 2, 2040 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB32B2433/02
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A belt for creping a web in a papermaking process. The belt includes a surface onto which the web is transferred during the papermaking process. A plurality of openings extend through the surface, with the openings being arranged in lines that are offset from lines in the machine direction (MD) and cross-machine direction (CD) of the belt. Paper products, such as absorbent sheets, made from the belt have hollow dome regions and connecting regions between the domes, with the domes being arranged in lines that are offset from lines in the MD and CD of the paper products.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.