D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 11/02 (2006.01) D21H 19/38 (2006.01) D21H 25/00 (2006.01) D21H 25/14 (2006.01)
Patent
CA 2397093
The invention relates to a method for producing a calendered paper web. According to the method, a paper web is formed from a fibrous raw material in a paper machine, and the paper web is calendered. According to the invention, a fibrous raw material is used which is at least partly made up of a chemimechanical pulp of a wood species of the Populus family, and the calendering is performed by online soft-calendering. By means of the invention, the gloss and smoothness of papers can be improved without decreasing their bulk.
L'invention concerne un procédé permettant de produire une bande de papier calandré. Ce procédé consiste à produire une bande de papier à partir d'une matière première fibreuse dans une machine à papier, puis à calandrer cette bande de papier. La matière première fibreuse utilisée dans cette invention est composée au moins partiellement d'une pâte chimique dérivée d'une espèce de bois de la famille <i>Populus</i>, et l'étape calandrage comprend un calandrage doux effectué en continu. Cette invention permet d'améliorer le lustre et le lissé du papier sans diminution de son bouffant.
Hietanen Soili
Leskela Markku
M-Real Oyj
Macrae & Co.
Sappi Netherlands Services B.v.
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