Method and equipment for controlling properties of paper

Details Method and equipment for controlling properties of paper Method and equipment for controlling properties of paper

D - Textiles, Paper

21

F

D21F 1/06 (2006.01) D21F 7/06 (2006.01) D21G 9/00 (2006.01) D21H 23/12 (2006.01) G01N 33/34 (2006.01)

Patent

CA 2311550

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 ra) and the stock flow (F 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 ra) and the stock flow (F ts).

Cette invention concerne un procédé et un appareil permettant de réguler les propriétés du papier, procédé dans lequel on modélise l'effet du débit d'un agent de rétention (Fra) et du débit du mélange de départ (Fts) en fonction du poids de base (BW) du papier. Une fois achevée, cette modélisation est utilisée afin d'ajuster le poids de base (BW) du papier, ceci en régulant simultanément le débit de l'agent de rétention (Fra) et le débit du mélange de départ (Fts).

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