D - Textiles – Paper – 21 – H
Patent
D - Textiles, Paper
21
H
D21H 27/00 (2006.01) B31F 1/07 (2006.01)
Patent
CA 2649058
The invention relates to an approximately rectangular, separable multi-ply absorbent sheet based on cellulose wadding that includes at least three plies and that has a coefficient KNOVE = RSM X RST X A X G X Exp (12 x (E + Ep)) x (1/Exp (Sp)) > 75 000 where; RST = strength across the width of the sheet in N/m; RSM = strength along the length of the sheet in N/m; G = grammage of the sheet in kg/m2; E = thickness of the sheet in mm; Sp = flexibility of the sheet in N; A = absorption of the sheet in kg/m2 Ep = average thickness of one ply of the sheet in mm, where EP is greater than 0.115 mm. The invention also relates to the method of manufacturing such a sheet, and rolls composed of said sheets.
L'invention concerne une feuille absorbante délitable multi-plis, sensiblement rectangulaire, à base d'ouate de cellulose qui comprend au moins trois plis et qui présente un coefficient K<SUB>NOVE</SUB> = R<SUB>SM</SUB> x R<SUB>ST</SUB> x A x G x Exp (12 x (E + E<SUB>p</SUB>)) x (1/Exp (Sp)) > 75 000 avec; R<SUB>ST</SUB> = résistance selon la largeur de la feuille en N/m; R<SUB>SM</SUB> = résistance selon la longueur de la feuille en N/m; G = grammage de la feuille en kg/m<SUP>2</SUP>; E = épaisseur de la feuille en mm; Sp = souplesse de la feuille en N; A = absorption de la feuille en kg/m<SUB>2;</SUB> E<SUB>p</SUB> = épaisseur moyenne d'un pli de la feuille en mm, E<SUB>P</SUB> étant supérieure à 0,115 mm. L'invention vise en outre le procédé de fabrication d'une telle feuille, ainsi que des rouleaux constitués par lesdites feuilles.
Barredo Donald
Graff Pierre
Probst Pierre
Georgia-Pacific France
Norton Rose Or S.e.n.c.r.l. S.r.l./llp
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