Paper machine fabric

Details Paper machine fabric Paper machine fabric

D - Textiles, Paper

21

F

D21F 1/10 (2006.01) D21F 7/08 (2006.01)

Patent

CA 2484421

The invention relates to a paper machine fabric which addresses the problems of the prior art such as innerside wear, high bending and edge trimming problems with thick fabric, and marking. The paper machine fabric comprises: at least two separate layers formed using at least two separate yarn systems: a yarn system constituting the paper side and comprising warps and wefts; and a yarn system constituting the machine side and comprising warps and wefts, the yarn systems being arranged to form independent structures in the warps and wefts of the fabric and the structures being bound together by means of binder yarns; a binder yarn being arranged to form part of a weave of a layer on the paper side surface and arranged to be interwoven with a layer of the machine side by being interwoven under at least one yarn in the machine side layer, in which paper machine fabric the number of warps in the layer constituting the machine side is larger than the number of warps in the layer constituting the paper side; and a pair of parallel bottom warps run in the weave by becoming interwoven with bottom wefts always in the same manner either at the same or a different stage, and the binder yarn enters and exits the machine side to bind the layers constituting the paper side and the machine side together by becoming interwoven under either bottom warp.

L'invention concerne une toile de machine à papier comprenant au moins deux couches séparées formées au moyen d'au moins deux systèmes de fil séparés, l'un constituant le côté papier et comprenant des fils de direction machine et de direction transversale machine (1, 2), l'autre constituant le côté machine et comprenant des fils de direction machine et de direction transversale machine, les systèmes de fils étant agencés afin de former des structures indépendantes dans les deux directions de la toile. Ces structures sont liées ensemble par des fils de liaison (5), un fil de liaison (5) étant disposé de façon à constituer une partie de la trame d'une couche sur la surface côté papier et disposé afin d'être entretissé avec une couche du côté machine par entretissage sous au moins un fil de la couche côté machine. Le nombre de fils disposés dans la direction machine de la couche côté machine est plus important que le nombre de fils (1) dans la direction machine de la couche côté papier.

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