A papermaking belt
US5431786A · kind A · utility
156Cited by
16References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 31, 1994 |
| Grant date | Jul 11, 1995 |
| Priority date | — |
| Expiry date | Jan 31, 2014 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H27/02
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The present invention is directed to a single lamina tissue paper having visually discernible, large scale patterns made during the drying step of the papermaking process. Particularly, the tissue is made on a blow through drying belt having a pattern of alternating knuckles and deflection conduits. This pattern produces a like pattern of regions in the paper having alternating values of crepe frequencies, opacities and elevations. The differences in these values produces a visually discernible pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.