Sacrificial recoverable displacing agent for improved paper...

Details Sacrificial recoverable displacing agent for improved paper... Sacrificial recoverable displacing agent for improved paper...

D - Textiles, Paper

21

F

D21F 3/02 (2006.01) D21F 7/12 (2006.01)

Patent

CA 2579430

A method and apparatus for reducing the amount of rewet of in a press section of an industrial press including a press fabric for carrying a sheet, a press for applying pressure to the press fabric and for forcing water out of the sheet and into the press fabric, and means for applying a reusable displacing agent at least one side of press fabric, the displacing agent absorbing interfacial water upon exiting the press and preventing rewet of the sheet.

Cette invention concerne un procédé et un appareil visant à réduire le degré de réhumidification dans une section des presses d'une presse industrielle comprenant une toile de presse sur laquelle repose une feuille, une presse chargée d'appliquer une pression sur la toile de presse afin de contraindre l'eau à sortir de la feuille et à pénétrer dans la toile de presse, ainsi qu'une unité servant à appliquer un agent de déplacement réutilisable sur au moins un côté de la toile de presse, lequel agent de déplacement absorbe l'eau interfaciale au moment où celle-ci quitte la presse et prévient la réhumidification de la feuille.

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