Method and equipment for controlling properties of paper
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United States of America Patent
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Dec 11, 2001
Grant Date -
N/A
app pub date -
Nov 17, 1998
filing date -
Nov 25, 1997
priority date (Note) -
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Abstract
The invention relates to a method and equipment for controlling properties of paper, in which method the effect of the flow of retention agent (F.sub.ra) and the stock flow (F.sub.ts) on the basis weight of the paper (BW) is modelled. The fulfilled modelling is used to adjust the basis weight of the paper (BW) by controlling simultaneously the flow of retention agent (F.sub.ra) and the stock flow (F.sub.ts).
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