Title:
METHOD AND ARRANGEMENT FOR HANDLING PAPER OR CARDBOARD WEBS
Document Type and Number:
WIPO Patent Application WO2000008252
Kind Code:
A3
Abstract:
A method and apparatus for producing paper or board, according to which the paper or board web is transferred continuously supported through a drying section of a paper or cardboard machine and both sides of the web are treated with a treating agent on a long nip applicator included to the drying section of the machine. The web is transferred from the last press nip of the press section to the first dryer of the dryer section with a continuous loop-like support member, for example by a transfer belt, transfer felt or one of the press felts of the press section. The web is advantageously dried in the drying section with a blow unit on a porous drying felt by blowing hot air on the web with impingement dryers and the drying felt may be cooled.
Inventors:
LAAPOTTI JORMA (FI)
Application Number:
PCT/FI1999/000651
Publication Date:
March 23, 2000
Filing Date:
August 04, 1999
Export Citation:
Assignee:
VALMET CORP (FI)
LAAPOTTI JORMA (FI)
LAAPOTTI JORMA (FI)
International Classes:
D21F3/02; D21F5/18; (IPC1-7): D21F5/00
Domestic Patent References:
| WO1998027273A1 | 1998-06-25 | |||
| WO1997032080A1 | 1997-09-04 | |||
| WO1993023616A1 | 1993-11-25 |
Foreign References:
| US5169501A | 1992-12-08 |
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