Method for maximizing water removal in a press nip
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United States of America Patent
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Jul 13, 2010
Grant Date -
Feb 14, 2008
app pub date -
Oct 18, 2007
filing date -
Nov 13, 1998
priority date (Note) -
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status (Latency Note)
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Abstract
The present invention is a method for maximizing water removal from an absorbent web in a press nip. The present invention uses a pressing unit having a blanket with a void volume and with a pressure profile that maximizes water removal in the press section or on the Yankee dryer of a paper machine. The pressure profile of the pressing unit according to the present invention has a very steep pressure drop at and/or following the exit of a pressure distribution curve in order to maximize water removal by minimizing rewet of the web. The improved pressure profile according to the present invention results in increased water removal and/or improved line speed. The void volume further increases water removal and/or improves line speed.
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