Film coater method and apparatus
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United States of America Patent
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Sep 22, 2009
Grant Date -
Apr 17, 2008
app pub date -
Dec 7, 2007
filing date -
Sep 30, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
An improved film coater which utilizes one or more coater or applicators to transfer coating to the outer surfaces of at least one more rolls, which in turn transfers the coating from the roll surface to one or more sides of the web for coating paper is disclosed. The coater or applicator includes a smoothing doctor on the web and downstream of the one or more rolls, and may also utilize humidity from one of steam showers or a humidity enclosure to assist smoothing. The web may run in any direction, but preferably runs upwardly from the roll toward the doctor to reduce “film split” droplets effect. The present invention also reduces the fiber rise and arrange peel pattern on the coated web, resulting in a smooth uniform coated paper.
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