D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 25/10 (2006.01) B05C 11/04 (2006.01) D21H 25/08 (2006.01)
Patent
CA 2423881
The present invention relates to a method for coating a web (2) of paper or paper board moving supported by a backing roll (1) or for coating a roll of a film-transfer press, the method comprising the steps of doctoring the surface of the web (2) or the roll of the film-transfer press, and applying the coating mix to the surface of the web (2) or the roll of the film-transfer press. A cooling fluid is applied to the meeting point of the surface (2) to be doctored and the doctoring element (3) prior to the start of coating mix application.
La présente invention concerne un procédé de couchage d'une bande (2) de papier ou de carton en mouvement maintenue par un contre-rouleau (1) ou d'un rouleau de presse de transfert de bande. Ce procédé consiste à racler la surface de la bande (2) ou du rouleau de presse de transfert de bande, et à appliquer la sauce de couchage sur la surface de la bande (2) ou du rouleau de la presse de transfert de bande. Un liquide réfrigérant est appliqué sur le point de rencontre entre la surface (2) destinée à être raclée et l'élément de raclage (3) avant de commencer à appliquer la sauce de couchage.
Kiiha Timo
Koskinen Jukka
Gowling Lafleur Henderson Llp
Metso Paper Inc.
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