METHOD AND DEVICE FOR HEATING CORRUGATED CARDBOARD SHEET
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United States of America Patent
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Issued Date -
Feb 2, 2012
app pub date -
Mar 30, 2010
filing date -
Apr 9, 2009
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A device for manufacturing a corrugated cardboard sheet includes a conveyor which conveys a corrugated medium and a liner, a starch applicator which is arranged along a conveying path of the corrugated medium and the liner and applies liquid starch to flute tops of the corrugated medium, a bonding unit which bonds the liner and the corrugated medium by placing the liner on the corrugated medium to which the liquid starch is applied and by heating and pressing the corrugated medium and the liner to gelatinize the liquid starch; and a spraying unit which is arranged on an upstream side of the bonding unit and sprays moist air on the flute tops of the corrugated medium to which the liquid starch is applied.
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