Method and apparatus for handling paper or cardboard webs
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United States of America Patent
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Apr 16, 2002
Grant Date -
N/A
app pub date -
Aug 4, 1999
filing date -
Aug 4, 1998
priority date (Note) -
Expired
status (Latency Note)
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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 with 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.
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