Absorbent core, disposable absorbent article, and method of...

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/532 (2006.01) A61F 13/535 (2006.01)

Patent

CA 2680156

An absorbent article comprises a topsheet joined to a backsheet and has an absorbent core material disposed therebetween, the absorbent core material being a fibrous absorbent material exhibiting on one side thereof discrete raised portions or out-of-plane deformations. In one aspect, the raised portions define a continuous network of channels, the channels defining a void region adjacent the topsheet of the sanitary napkin. In another aspect, the absorbent core material comprises a fibrous airlaid nonwoven web comprising cellulosic fibers and having a first density, and a plurality of discrete out-of-plane deformations having a second density which is less than the first density. The invention further relates to a method of making an absorbent core material.

La présente invention concerne un article absorbant qui comprend une feuille supérieure liée à une feuille arrière, et qui possède une âme absorbante disposée entre les deux feuilles. Ladite âme absorbante est un matériau absorbant fibreux présentant, sur un côté de celui-ci, de discrètes portions surélevées ou des déformations hors plan. Dans un aspect de l'invention, les portions surélevées définissent un réseau continu de canaux, lesdits canaux définissant une région vide adjacente à la feuille supérieure de la serviette hygiénique. Dans un autre aspect, l'âme absorbante comprend une toile non tissée fibreuse appliquée par jet d'air, comprenant des fibres cellulosiques et présentant une première densité, ainsi qu'une pluralité de discrètes déformations hors plan ayant une seconde densité inférieure à la première densité. L'invention concerne en outre un procédé de fabrication d'une âme absorbante.

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