Absorbent articles utilizing breathable composite sheet

A - Human Necessities – 61 – F

Patent

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Details

A61F 13/15 (2006.01) B32B 5/26 (2006.01) B32B 27/12 (2006.01)

Patent

CA 2374312

The present invention relates to absorbent articles having a topsheet, a backsheet, and an absorbent core between the topsheet and the backsheet. The backsheet comprises a moisture vapor permeable, substantially liquid impermeable composite sheet material includes a powder-bonded nonwoven web adhered to a moisture vapor permeable thermoplastic film. The nonwoven web includes a first layer comprised primarily of fibers that are compatible with an adhesive used to bond the web, and a second layer comprised of a blend of fibers, some of which are compatible with, and some of which are incompatible with the bonding adhesive and the thermoplastic film. A method for making the composite sheet material and an item of apparel made from the sheet material are also provided.

L'invention concerne des articles absorbants présentant une feuille supérieure, une feuille inférieure et une partie centrale absorbante intercalée. La feuille inférieure comprend un matière de feuille composite sensiblement imperméable aux liquides et perméable à la vapeur qui comprend une bande de non-tissé liée à un film thermoplastique perméable à la vapeur. La bande de non tissé comprend une première couche formée de fibres compatibles avec un adhésif utilisé pour lier la bande de non tissé et une seconde couche constituée d'un mélange de fibres, dont certaines sont compatibles et d'autres sont incompatibles avec l'adhésif liant et au film thermoplastique. L'invention concerne en outre un procédé de formation d'une matière de feuille composite et d'un article fait d'une matière de feuille.

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