Paper web control

Details Paper web control Paper web control

D - Textiles, Paper

21

F

341/42, 92/13.1

D21F 7/06 (2006.01) D21F 1/02 (2006.01) D21G 9/00 (2006.01)

Patent

CA 1239460

Abstract of the Disclosure 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 a 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.

378789

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