Fibrous web and process for the preparation thereof

Details Fibrous web and process for the preparation thereof Fibrous web and process for the preparation thereof

D - Textiles, Paper

21

H

D21H 17/69 (2006.01) D21H 11/16 (2006.01)

Patent

CA 2444795

The invention relates to a fiber web and a method for preparing it. The fiber web comprises a filler-containing base web, which is possibly coated with a pigment-containing coating layer. According to the invention, 5 - 100% of the filler in the base web is made up of cellulose fibrils or lignocellulose fibrils with light-scattering material particles deposited thereon. These coated cellulose fibrils or lignocellulose fibrils constitute at maximum approx. 70% of the weight of the base web. The base web according to the invention contains more than 20% less retention agents than does a web which has the same formation but in which more than 95% of the filler is made up of filler particles known per se.

La présente invention concerne une nappe fibreuse et son procédé de préparation. La nappe fibreuse comporte une nappe de base comprenant une charge, éventuellement revêtue d'une couche de revêtement contenant du pigment. Selon l'invention, 5 à100 % de la charge dans la nappe de base est constitué de fibrilles cellulosiques ou lignocellulosiques avec des particules de diffusion de lumière déposées sur celles-ci. Les fibrilles cellulosiques ou lignocellulosiques revêtues constituent au plus environ 70 % du poids de la nappe de base. La nappe de base selon l'invention comprend plus de 20 % d'agents de rétention que ne contient une nappe ayant la même composition mais dans laquelle plus de 90 % de la charge est constitué de particules de charge connues en soi.

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