Method for moisture and temperature control in corrugating...

B - Operations – Transporting – 31 – F

Patent

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Details

B31F 1/20 (2006.01) B31D 5/02 (2006.01) B31F 1/24 (2006.01) B32B 29/00 (2006.01)

Patent

CA 2749343

A method of producing a corrugated product comprises the steps of providing at least one medium conditioning apparatus upstream of at least one of a corrugating labyrinth, single-facer, and/or double-backer. The moisture content in at least one of a web of medium material, first face-sheet, and/or second face-sheet is adjusted to be in the range of 6-9 wt.% moisture by applying a substantially continuous thin film of liquid thereto using the at least one medium conditioning apparatus. In one example, at least one heating arrangement is arranged downstream from the at least one medium conditioning apparatus to heat at least one of the web of medium material, first-face sheet, and/or second face-sheet.

La présente invention a pour objet un procédé de production d'un produit ondulé comprenant les étapes consistant à prévoir au moins un appareil de conditionnement de support en amont d'un labyrinthe d'ondulation, d'une machine à onduler simple face, et/ou d'un système à sceller double face. La teneur en humidité dans une bande de matériau support, une première feuille de face, et/ou une seconde feuille de face est ajustée pour être dans la gamme de 6 à 9 % d'humidité en poids par l'application sur celles-ci d'un film mince sensiblement continu de liquide au moyen du ou des appareils de conditionnement de support. Dans un exemple, au moins un agencement chauffant est disposé en aval du ou des appareils de conditionnement de support pour chauffer la bande de matériau support, la première feuille de face, et/ou la seconde feuille de face.

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