Method and apparatus for controlling a moving paper web

Details Method and apparatus for controlling a moving paper web Method and apparatus for controlling a moving paper web

D - Textiles, Paper

21

F

D21F 7/00 (2006.01) D21G 9/00 (2006.01)

Patent

CA 2377748

Method and apparatus for controlling moving paper web during manufacture or subsequent processing, wherein a web elongation profile and a moisture profile are measured. The web elongation is governed by at least two CD moisture actuators, which are situated at different stages in the web manufacturing process or subsequent processing. Means for measuring the web elongation profile and the moisture profile are situated after the CD actuators.

L'invention concerne un procédé et un appareil permettant de réguler une feuille de papier mobile pendant sa fabrication ou son traitement ultérieur consistant à mesurer le profil d'allongement de la feuille et le profil d'humidité. L'allongement de la feuille est régulé par au moins deux actionneurs d'humidité sens travers qui sont disposés à différents étapes dans la fabrication de la feuille de papier ou son traitement ultérieur. Des moyens de mesure du profil de l'allongement de la feuille et du profil d'humidité sont placés après les actionneurs d'humidité sens travers.

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