Tow-based absorbent articles with a single casing sheet

Details Tow-based absorbent articles with a single casing sheet Tow-based absorbent articles with a single casing sheet

A - Human Necessities

61

F

A61F 13/539 (2006.01)

Patent

CA 2580602

An absorbent article is provided that includes a liquid pervious top layer and an absorbent core of synthetic tow fibers. A casing layer is disposed to surround the core such that super absorbent particles are disposed therebetween. The casing layer is bonded with the core to form a predetermined pattern. The pattern is configured for containment of super absorbent particles. A liquid impervious back layer is also included, wherein the casing layer is disposed between the top layer and the back layer. Alternatively, the absorbent article has an absorbent core of polypropylene tow fibers and a polypropylene casing sheet that encloses the core such that super absorbent particles are disposed therebetween. The casing sheet is ultrasonically bonded, or embossed, to the core to form a predetermined pattern. The pattern defines pockets that are configured for containment of the super absorbent particles.

L'invention concerne un article absorbant comportant une couche supérieure perméable au liquide et une couche centrale absorbante constituée de fibres d'étoupe synthétiques. Une couche de doublure entoure la couche centrale pour disposer des particules super absorbantes entre celles-ci. La couche de doublure est collée à la couche centrale pour constituer un motif prédéterminé. Le motif est configuré pour confiner les particules super absorbantes. Une couche de renfort imperméable au liquide est également incluse, la couche de doublure étant disposée entre la couche supérieure et la couche de renfort. Autre possibilité, l'article absorbant possède une couche centrale absorbante constituée de fibres d'étoupe de polypropylène et une feuille de doublure de polypropylène entourant la couche centrale pour disposer les particules super absorbantes entre celles-ci. La feuille de doublure est collée par ultrasons à ou incrustée dans la couche centrale pour constituer un motif prédéterminé. Le motif définit des poches configurées pour confiner les particules super absorbantes.

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