A method for leading a web between calender nips, and a...

Details A method for leading a web between calender nips, and a... A method for leading a web between calender nips, and a...

D - Textiles, Paper

21

G

D21G 1/00 (2006.01) D21H 25/04 (2006.01)

Patent

CA 2376771

In the method for leading a web between calender roll nips (N), a web (W) is guided between the calender roll nips (N) in a loop which runs apart from the calender rolls, inside which loop an air pocket (3) is formed. The mass and/or heat flow in the air pocket (3) is prevented in the cross direction of the web by means of obstacles (5) placed in connection with the pocket. Image

La présente invention concerne un procédé permettant de diriger une bande dans l'écartement entre les cylindres d'une calandre (N), selon lequel la bande est guidée dans l'écartement entre les cylindres de la calandre (N) de façon qu'elle forme une boucle qui s'éloigne des cylindres de la calandre, boucle à l'intérieur de laquelle se forme une poche d'air (3). Des obstacles (5) placés dans la poche d'air empêchent le flux d'humidité et/ou de chaleur dans le sens travers de la bande.

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