D - Textiles – Paper – 21 – F
Patent
D - Textiles, Paper
21
F
D21F 11/00 (2006.01) D21F 7/08 (2006.01) D21F 3/02 (2006.01)
Patent
CA 2706321
A clothing for structuring a wet fibre web (1') in a press section of a tissue papermaking machine is described which has a three-dimensional woven structure forming elevations (62) and depressions (63), said elevations, like the depressions, are repeated and distributed to form a pattern of polygonal, geometrically similar smallest unitary surfaces (64), each of said unitary surfaces having an area a and covering a plurality of depressions with the mean depth d. According to the invention, the area a and the mean depth d of each unitary surface (64) are adapted in relation to each other in such a way that, calculated by the length unit mm, their ratio is equal to or greater than 30 mm, wherein a is selected within the range of 1.0-3.0 mm2 and d is selected within the range of 0.03-0.09 mm. The invention also relates to a method for manufacturing a creped tissue paper web by using said structuring clothing.
L'invention porte sur un habillage pour structurer une bande de fibres humide (1') dans une section de presse d'une machine de fabrication de papier mince, lequel a une structure tissée en trois dimensions formant des saillies (62) et des creux (63), lesdites saillies, comme les creux, étant répétées et distribuées pour former un motif de surfaces unitaires les plus petites, géométriquement similaires et polygonales (64), chacune desdites surfaces unitaires ayant une aire a et recouvrant une pluralité de creux avec la profondeur moyenne d. Selon l'invention, l'aire a et la profondeur moyenne d de chaque surface unitaire (64) sont adaptées l'une par rapport à l'autre de telle sorte que, calculé en unité de longueur en mm, leur rapport est égal ou supérieur à 30 mm, a étant choisi dans la plage allant de 1,0 à 3,0mm2 et d étant choisi dans la plage allant de 0,03 à 0,09 mm. L'invention porte également sur un procédé de fabrication d'une bande de papier mince crêpée à l'aide dudit habillage de structure.
Aberg Bo-Christer
Hultcrantz Magnus
Johnson Cary P.
Klerelid Ingvar
Lafond John J.
Albany International Corp.
Nelligan O'brien Payne Llp
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