Method for producing fiber product

Details Method for producing fiber product Method for producing fiber product

D - Textiles, Paper

21

H

D21H 27/38 (2006.01) D21H 15/12 (2006.01) D21H 17/69 (2006.01)

Patent

CA 2502497

This invention concerns the production of a multilayer fiber product. According to the method, on top of a bottom layer consisting of at least one fiber layer, a second fiber layer is fitted containing filler that forms the surface layer. According to the invention, the layers are formed by multilayer web forming technology, and the surface layer filler includes cellulose or lignocellulose fibrils, on which light-scattering material particles are deposited, having a maximum proportion of the total filler weight of 85 %. By means of the invention, a base paper is achieved that is suited to thin, coated paper grades, where conventionally the intrusion of the coating color into the bottom paper and through it is a problem.

La présente invention concerne la production d'un produit fibreux multicouche. Selon le procédé, le dessus d'une couche supérieure constituée d'au moins une couche de fibres est recouverte d'une seconde couche de fibres qui contient une matière de charge et constitue la couche de surface. Selon l'invention, les couches sont constituées par la technologie de constitution de bandes de matière multicouches, et la matière de charge de la couche de surface comprend des fibrilles de cellulose ou de lignocellulose, sur lesquelles des particules de matière de diffusion de lumière sont déposées en une proportion maximale de 85 % du poids total de la matière de charge. L'invention permet d'obtenir un papier de base qui convient à la réalisation de fins types de papier revêtu pour lesquels la pénétration de la couleur de revêtement à travers le papier de dessous représente d'ordinaire un problème.

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