Molded wet-pressed tissue

Details Molded wet-pressed tissue Molded wet-pressed tissue

D - Textiles, Paper

21

F

D21F 11/00 (2006.01) D21H 25/00 (2006.01) D21H 27/00 (2006.01)

Patent

CA 2665972

Wet-pressed creped tissue sheets exhibit continuous undulating valleys separated by continuous mono-planar macro-ridges running in the machine direction of the sheet, the macro-ridges being of a lower fiber density relative to the fiber density of the undulating valleys. The tissue structure can be created by pressing a densified tissue web against the surface of a Yankee dryer while the web is supported by a texturizing (molding) fabric having a web-supporting surface having highly topographic continuous or substantially continuous ridges and valleys and thereafter creping the web.

L'invention concerne des feuilles de tissu crêpées et pressées à l'état humide qui présentent des creux ondulants continus séparés par des crêtes macroscopiques mono-planes continues s'étendant dans le sens machine de la feuille, les crêtes macroscopiques étant d'une densité de fibre plus faible par rapport à la densité de fibre des creux ondulants. La structure de tissu peut être créée en pressant une bande de tissu densifiée contre la surface d'une sècherie monocylindrique alors que la bande est supportée par une étoffe de texturisation (moulage) ayant une surface de support de bande avec des creux et des crêtes extrêmement topographiques, continus ou sensiblement continus, puis en crêpant la bande.

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