Glazed paper webs
US6998019B2 · kind B2 · utility
2Cited by
6References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 9, 2003 |
| Grant date | Feb 14, 2006 |
| Priority date | — |
| Expiry date | Sep 9, 2023 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H25/005
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided is a process for preparing a smooth and glossy surfaced paper web. The process comprises subjecting the paper web to shear by using calender rolls driven at different speeds or calender rolls with different diameters. The resulting paper has a totally different structure than the original paper, as it has a much smaller void structure and a much higher degree of bonding between the elements of the sheet. The process is particularly applicable to improving the electrical insulation properties of an aramid paper web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.