Surface heating for a corrugated medium web
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United States of America Patent
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Apr 27, 1999
Grant Date -
N/A
app pub date -
Jan 13, 1997
filing date -
Jan 13, 1997
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a single facer, the premoistened medium web is dried on both surfaces to a shallow depth immediately prior to passage through the corrugating nip. The dried shallow surface layers substantially decrease friction between the flutes of the corrugating rolls and the paper while the interior of the web is maintained in a moist condition necessary for formability.
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