Control of detachment of a paper web from a roll using heat
US4919759A · kind A · utility
40Cited by
4References
23Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 25, 1988 |
| Grant date | Apr 24, 1990 |
| Priority date | — |
| Expiry date | Jan 25, 2008 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD21F3/04
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Control of detachment of a web from a roll, such as a paper web from a press roll in a paper machine, in particular a so-called closed press section provided with a smooth-faced press roll. The temperature of the surface of the smooth-faced press roll is adjusted, so that adhesion between the roll surface and the paper web to be detached is influenced or affected. Thereby, the detaching angle and/or the detaching tension of the paper web, is set within an optimal range. Temperature profile of the smooth-faced press roll in the axial direction thereof, can also be adjusted with a view to controlling the detaching of the web.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.