Method of controlling cross profile of properties of paper web
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United States of America Patent
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Oct 17, 1989
Issued Date -
N/A
app pub date -
Aug 14, 1987
filing date -
Jun 2, 1980
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method of controlling the properties of a paper web across the feed direction, i.e., cross profile, in a paper machine. The cross profile is adjusted in a plurality of setting positions across the web. Proceeding from a measured cross profile and desired cross profile, an optimum correction in the setting positions is calculated, so that the cross profile is brought into agreement with the desired one. At this calculation the circumstance is utilized, such that a disturbance in the stock in a certain setting position results in a corresponding change in the cross profile of the paper web.
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