Absorbent composite with three-dimensional film surface for use in absorbent disposable products
AssigneeTredegar Industries, Inc.
InventorsPrasad S. Potnis, Michael A. Francis
Life of this patent
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Abstract
The absorbent composite comprises a three-dimensional formed film having a planar surface and three-dimensional surface defining a plurality of cavities or projections depending downwardly from a planar surface. A plurality of the cavities or projections or spaces defined by the cavities contain at least one type of absorbent material. The composite is useful in a fluid absorbent product having at least one liquid pervious layer and at least one liquid impervious layer where the absorbent composite is positioned between the liquid pervious layer and the liquid impervious layer.
Claims41
An absorbent composite comprising a three-dimensional fluid impermeable, formed film having a planar surface and a three-dimensional surface which defines a plurality of cavities depending downwardly from the planar surface, the cavities providing dimensional stability to the formed film to substantially prevent collapse of the absorbent structure, wherein a plurality of the cavities contain at least one type of absorbent material;
- and at least one fluid distribution material positioned adjacent the planar surface of the formed film.
An absorbent composite comprising a three-dimensional perforated formed film having a planar surface, and a three-dimensional surface which defines a plurality of projections depending from the planar surface, each projection defining an aperture which has a first, open end in the plane of the film and a second, open end positioned in a spaced apart relationship from the first open end, the planar surface of the film and each projection further defining a space;
- at least one type of absorbent material positioned in a plurality of the spaces defined between the projections depending from the planar surface of the formed film, the absorbent material being in substantial communication in the spaces defined between the projection;
- and,
- at least one liquid distribution material positioned adjacent the second open ends of the apertures defined by the projections depending from the planar surface of the three-dimensional formed film.
Dependencies are inferred from the claim text.