Method and device for drying of a coated web

Details Method and device for drying of a coated web Method and device for drying of a coated web

D - Textiles, Paper

21

F

D21F 5/18 (2006.01)

Patent

CA 2337023

A method and device for drying a coated web. The coated web is first conveyed through a web heating unit (10, 32, 40), in which the temperature of the coated web is raised, typically to drying temperature, by directing jets of heating air at the coated web, the humidity a1 of the said heating air jets being higher than the humidity a2 of the drying air jets. After this the coated web is conveyed through at least one air dryer (34, 36, 38; 42, 44, 46), in which drying air jets are directed at the coated web for drying the coated web.

L'invention porte sur un procédé et un dispositif de séchage d'une bande, de papier ou de carton, couchée consistant à la faire passer dans une unité (10, 32, 40) de chauffage la portant à la température de séchage puis dans au moins une unité de séchage (34, 36, 38, 42, 44, 46), les jets d'air chaud de l'unité de chauffage présentant un taux d'humidité (a1) supérieur à celui (a2) des jets de séchage.

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