Absorbent paper product with asymmetric structure
US6723203B2 · kind B2 · utility
5Cited by
8References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 10, 2002 |
| Grant date | Apr 20, 2004 |
| Priority date | — |
| Expiry date | Jan 10, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24455
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention concerns a cotton-wool-like cellulose having a basis weight of about 20 to about 80 g/m2 comprising, an embossed ply of 10 to 40 g/m2, including raised designs consisting at least partly of discrete protuberances oriented towards the inside of the structure, and a non-embossed ply. The invention is characterised in that the embossed ply has over at least a surface portion at least 30 protuberances per cm2 whereof the surface is less than 1 mm2, preferably less than 0.7 mm2, and the basis weight of the embossed ply is less than that of the non-embossed ply. Preferably, it is less by 5 to 30%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.