A sanitary paper product made by modifying coarse fibers and...

Details A sanitary paper product made by modifying coarse fibers and... A sanitary paper product made by modifying coarse fibers and...

D - Textiles, Paper

21

C

D21C 9/00 (2006.01) D21C 5/02 (2006.01) D21C 9/02 (2006.01) D21H 15/02 (2006.01)

Patent

CA 2344820

A method of making sanitary paper products from coarse fibers. The method includes the steps of: (a) pulping coarse fibers in water with agitation to produce a pulp slurry, the pulp from the coarse fibers having an average fines content of greater than about 40 %; (b) using an effective amount of pulp washing to reduce the fines content and increase the Canadian Standard Freeness; (c) introducing the pulp at a papermaking consistency into the headbox of a paper making machine; and (d) utilizing the pulp in a paper making process to produce sanitary paper products.

L'invention concerne un procédé permettant de fabriquer des articles en papier hygiéniques à partir de fibres grossières. Ce procédé consiste: a) à soumettre des fibres grossières à un lessivage dans l'eau, puis à une agitation, afin de produire une suspension dense, la pâte produite par lesdites fibres grossières présentant une teneur moyenne en fines supérieure à 40 % environ; b) à procéder à un lessivage suffisant pour réduire cette teneur en fines et faciliter la mesure de l'égouttabilité; c) à introduire la pâte, qui présente une consistance de pâte à papier, dans la caisse supérieure d'une machine à papier; et d) à utiliser cette pâte dans un processus de fabrication de papier destiné à produire des articles en papier hygiéniques.

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