Belt-creped, variable local basis weight absorbent sheet prepared with perforated polymeric belt
US8293072B2 · kind B2 · utility
61Cited by
288References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 27, 2010 |
| Grant date | Oct 23, 2012 |
| Priority date | — |
| Expiry date | Aug 20, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24479
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An absorbent sheet of cellulosic fibers with upper and lower sides includes (i) a plurality of fiber-enriched hollow domed regions on the upper side of the sheet having a relatively high local basis weight, (ii) connecting regions of relatively lower local basis weight forming a network interconnecting the relatively high local basis weight domed regions of the sheet, and (iii) transition areas with upwardly and inwardly inflected consolidated fibrous regions transitioning from the connecting regions into the domed regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.