Calendered paper product and method of producing a calendered paper web
US6908531B2 · kind B2 · utility
0Cited by
6References
21Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 2001 |
| Grant date | Jun 21, 2005 |
| Priority date | — |
| Expiry date | May 21, 2021 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21H25/14
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
The invention relates to a method for producing a calendered paper web. According to the method, a paper web is formed from a fibrous raw material in a paper machine, and the paper web is calendered. According to the invention, a fibrous raw material is used which is at least partly made up of a chemimechanical pulp of a species of the Populus family, and the calendering is performed by online soft-calendering. By means of the invention, the gloss and smoothness of papers can be improved without decreasing their bulk.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.