Multilayer papermaker's fabric having pocket areas defined...

D - Textiles – Paper – 21 – F

Patent

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D21F 1/00 (2006.01) D21F 11/00 (2006.01) D21F 11/14 (2006.01)

Patent

CA 2538108

A multi-layer tissue forming fabric constructed so that the top forming surface has topographical differences measured as a plane difference between at least two top weft yams (400, 410). The plane difference-the difference in height between the two weft yarns-must be greater than zero. Using at least two different diameter, size, or shape weft yarns positioned at the same contour in the forming surface creates this plane difference and defines pocket areas in the forming surface of the tissue forming fabric. The pocket areas act to generate bulk, cross directional tensile, absorbency, and softness in a formed sheet of tissue, napkin, or towel paper.

L'invention concerne un tissu de formation de papier multicouche conçu de façon que la surface de formation supérieure présente des différences topographiques mesurées en tant que différence de plan entre au moins deux fils de trame supérieurs (400, 410). La différence de plan ou différence en hauteur entre les deux fils de trame doit être supérieure à zéro. L'utilisation d'au moins deux fils de trame de diamètre, de taille ou de forme différents positionnés au niveau du même contour dans la surface de formation crée ladite différence de plan et définit des régions de type poches dans la surface de formation du tissu de formation de papier. Lesdites régions de type poches s'avèrent utiles pour leur capacité de production de gonflant, de traction en section transversale, de pouvoir absorbant, et de douceur dans une feuille formée de papier, de serviette en papier, ou de papier toilette.

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