Compound sheets made of absorbent paper
US6287676A · kind A · utility
14Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 5, 1993 |
| Grant date | Sep 11, 2001 |
| Priority date | — |
| Expiry date | Oct 5, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24992
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The compound sheet made of absorbent paper consists of at least two crepe paper sheets with a specific weight between 12 and 30 g/m.sup.2. At least one sheet includes a first embossing pattern with bosses pointing inward the compound sheet and having a height of between 0.5 and 2.5 mm, a density of between 3 and 20 bosses per cm.sup.2 and covering 5 to 60% of the surface. The compound sheet is characterized in that the embossed sheet comprises a second embossing pattern with bosses 0.1 to 0.30 mm high.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.