Foam treatment of tissue products

D - Textiles – Paper – 21 – H

Patent

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Details

D21H 21/56 (2006.01) D21H 23/26 (2006.01)

Patent

CA 2423827

A method for applying a foam to a paper web is provided. Specifically, a foam is first formed from a liquid-based composition and a gas, such as air. Once formed, the foam is applied by a foam applicator to the web. In one embodiment, for example, the foam applicator applies the foam without substantially contacting the web. When applied with the foam, the web typically has a solids consistency less than about 95% by weight of the web. In some embodiments, one or more vacuum slots can be utilized in conjunction with the foam applicator to facilitate uniform application of the foam to the paper web.

Procédé d'application d'une mousse sur une bande de papier-linge. Spécifiquement, une mousse est d'abord formée à partir d'une composition à base de liquide et d'un gaz tel que de l'air. Une fois formée, ladite mousse est appliquée par un applicateur de mousse sur la bande. Selon un mode de réalisation, par exemple, l'applicateur de mousse applique la mousse sans entrer en contact avec la bande. Lorsque la mousse est appliquée sur la bande, cette dernière possède typiquement une consistance en matières solides inférieure à environ 95 % en poids de la bande. Dans certains modes de réalisation, une ou plusieurs fentes d'aspiration peuvent être utilisées en conjonction avec l'applicateur de mousse pour faciliter une application uniforme de la mousse sur la bande de papier.

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