Process for making coated paper or paperboard

D - Textiles – Paper – 21 – H

Patent

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Details

D21H 23/46 (2006.01) B05C 5/00 (2006.01) D21H 19/82 (2006.01) D21H 23/48 (2006.01) B05C 9/06 (2006.01)

Patent

CA 2444925

The present invention refers to a method of producing a coated paper or paperboard, but excluding photographic papers, comprising the steps of: (a) forming a free flowing curtain comprising at least one layer, whereby the composition forming at least one layer of the free flowing curtain has a high shear viscosity of at least 50 mPa.cndot.s, and (b) contacting the curtain with a continuous web substrate of basepaper and paperboard.

La présente invention se rapporte à une méthode de production de papier couché ou de carton, mais qui exclut les papiers photographiques, et qui comprend les étapes qui suivent. a) La formation d'un rideau à écoulement libre constitué d'au moins une couche, où la composition qui forme au moins une couche du rideau à écoulement libre présente une viscosité élevée au cisaillement, d'au moins 50 mPa.cndot.s; et b) la mise en contact du rideau avec un substrat de bobine continu de papier support et de carton.

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