Absorbent article with expandable backsheet

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/15 (2006.01)

Patent

CA 2210203

The present invention provides a disposable absorbent article such as an incontinent pad that is both comfortable and suitable for absorbing and containing large volumes of bodily liquids without leakage. Such an absorbent article includes a liquid pervious topsheet, a liquid impervious backsheet joined to the topsheet, and an absorbent core positioned between the topsheet and the backsheet. The absorbent core includes a material which expands when wetted. The backsheet includes at least one pleat which is tacked with a liquid soluble adhesive such that when the liquid soluble adhesive is wetted the adhesive dissolves allowing the pleat to expand as the absorbent core expands. The pleats may extend in any direction, but preferably extend either substantially parallel to the longitudinal axis of the article or substantially parallel to the transverse axis of the absorbent article.

La présente invention porte sur un article absorbant jetable, tel qu'un coussin d'incontinence, qui est confortable et qui peut absorber et contenir un grand volume de liquides corporels sans fuite. Un tel article absorbant comprend une couche supérieure perméable, une couche inférieure étanche jointe à la couche supérieure et une garniture centrale absorbante placée entre la couche supérieure et la couche inférieure. La garniture centrale absorbante comporte un matériau qui se dilate lorsqu'il est imbibé. La couche inférieure comprend au moins un pli qui est collé par un produit adhésif soluble dans un liquide, de sorte que lorsque le produit adhésif est mouillé, il se dissout pour permettre au pli de se déplier au fur et à mesure que la garniture centrale absorbante se dilate. Les plis peuvent se déplier dans n'importe quel sens, mais de préférence, ils demeurent sensiblement parallèles à l'axe longitudinal ou à l'axe transversal de l'article absorbant.

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