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 7/06 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2352798

Properties of paper are controlled by modelling the effect of at least one variable (fD) of the paper dryer section on the paper moisture (Moi) and the effect of the stock flow (Fts) and/or stock composition and the flow of retention agent (Fra) on the paper moisture (Moi). By means of the modelling, the paper moisture (Moi) is adjusted by simultaneously controlling at least one variable (fD) of the paper dryer section, the stock flow (Fts) and the flow of retention agent (Fra).

On régule les propriétés du papier en modélisant l'effet d'au moins une variable (f¿D?) de la section de sécheur cylindrique du papier sur l'humidité du papier (Moi) et l'effet du flux de pâte (F¿ts?) et/ou de la composition de la pâte et du flux d'agent de rétention (F¿ra?) sur l'humidité du papier (Moi). Grâce à la modélisation, on régule l'humidité du papier (Moi) en commandant simultanément au moins une variable (f¿D?) de la section de sécheur cylindrique de papier, du flux de pâte (F¿ts?) ou du flux d'agent de rétention (F¿ra?).

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