Multi-functional tissue for absorbent article

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/15 (2006.01) A61F 13/20 (2006.01)

Patent

CA 2492436

The present invention relates generally to an absorbent multi-layer material or to a core for an absorbent article, and more particularly to an absorbent multi-layer material or to a core comprising a central absorbent layer positioned between an upper layer and a lower layer, wherein at least of the upper and/or lower layer(s) has a vertical wicking index of greater than about 6 cm after 19 minutes and/or greater than about 3 cm after 1 minute. Such a multi-layer material or multi-layer core provides improved strength, absorption and rewetting properties. An absorbent article that contains such a multi-layer material or core provides improved ability to absorb and retain fluids and consequently, prevents excessive rewetting and leakage.

De manière générale, la présente invention se rapporte à un matériau multicouche absorbant ou à une âme destinée à un article absorbant et de manière plus particulière, cette invention concerne un matériau multicouche absorbant ou une âme comprenant une couche absorbante centrale positionnée entre une couche supérieure et une couche inférieure, qui sont telles qu'au moins une des deux couches supérieure et inférieure présente un indice de capillarité verticale supérieur à environ 6 cm après 19 minutes et/ou supérieur à environ 3 cm après 1 minute. Un tel matériau multicouche ou une telle âme multicouche assure des propriétés améliorées de résistance, d'absorption et de réhumidification. Un article absorbant qui contient un tel matériau ou une telle âme multicouche confère une meilleure aptitude à absorber et à retenir les fluides et par conséquent, empêche une réhumidification excessive et des fuites.

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