Multi-ply embossed absorbent paper products

Details Multi-ply embossed absorbent paper products Multi-ply embossed absorbent paper products

D - Textiles, Paper

21

H

D21H 27/40 (2006.01) B31F 1/07 (2006.01) B31F 1/12 (2006.01) B31F 1/14 (2006.01)

Patent

CA 2325682

The invention relates to embossing multi-ply paper products, for example, paper towels, tissue and napkins, in which an improved embossing arrangement is used which is particularly suitable for paper products which have been processed so as to impart undulations whose axes extend in a principal undulatory direction, typically in the machine direction. The absorbent sheet typically further includes undulations which extend in the cross (transverse direction) of the web such that the absorbent sheet has a biaxially undulatory structure. The undulations may be formed by the use of an undulatory creping blade. Defined parameters accommodate: the distance at which the undulations are spaced, the total surface area of the design (embossing) elements, the width and length of the embossing elements and the aspect ratio of the elements, as well as the angular orientation of the embossing elements with respect to the undulations.

L'invention concerne des produits de papier gaufrés à une seule couche, par exemple, des essuie- tout, des mouchoirs et des serviettes en papier, dans lesquels un agencement de gaufrage amélioré est utilisé qui convient particulièrement aux produits de papier ayant été traités de manière à conférer des ondulations dont les axes s'étendent dans une direction ondulatoire principale, généralement dans le sens machine. En général, la feuille absorbante comprend en outre des ondulations qui s'étendent dans la direction transversale de la bande de sorte que la feuille absorbante présente une structure biaxialement ondulatoire. Les ondulations peuvent être formées par l'utilisation d'une lame de crêpage ondulatoire. Des paramètres définis déterminent : la distance à laquelle les ondulations sont espacées, la surface totale des éléments de conception (gaufrage), la largeur et la longueur des éléments de gaufrage et le rapport de forme des éléments, ainsi que l'orientation angulaire des éléments de gaufrage par rapport aux ondulation.

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