Absorbent articles having improved properties
First Claim
1. An absorbent article which includes a liquid-permeable inner casing sheet disposed on a first surface of the article, a liquid-impermeable outer casing sheet disposed on a second surface of the article, and an absorbent body which is enclosed between said inner and outer casing sheets and which includes a storage layer comprising at least one cavity or region of lower density than the density of a portion of said storage layer located adjacent said cavity or region and extending generally in the same plane thereas, wherein said portion of the storage layer includes a material which, when wetted, increases the volume in a direction generally perpendicular to said first surface of the article, whereby the size of said cavity or region also increases in said direction as a result of the article being wetted.
2 Assignments
0 Petitions
Accused Products
Abstract
An absorbent article which includes a liquid-permeable outer sheet (1) disposed on a first surface of the article, a liquid-impermeable outer sheet (2) disposed on a second surface of the article, and an absorbent body (3) which is enclosed between the two casing sheets and which includes a receiving space (24) for taking-up body liquid, wherein the space is comprised of at least one cavity or region of lower density than the density of a part of the absorbent body (3) adjacent the receiving space (24) and located generally in the same plane. The article is mainly characterized in that the receiving space (24) is disposed in a storage layer (19) in the absorbent body (3), and in that parts (20,125) of the storage layer (19) adjacent the receiving space (24) include a material which when wetted increases in volume in a direction generally perpendicular to the first surface of the article, whereby the size of the receiving space (24) is also increased in this direction as a result of wetting the article.
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Citations
19 Claims
- 1. An absorbent article which includes a liquid-permeable inner casing sheet disposed on a first surface of the article, a liquid-impermeable outer casing sheet disposed on a second surface of the article, and an absorbent body which is enclosed between said inner and outer casing sheets and which includes a storage layer comprising at least one cavity or region of lower density than the density of a portion of said storage layer located adjacent said cavity or region and extending generally in the same plane thereas, wherein said portion of the storage layer includes a material which, when wetted, increases the volume in a direction generally perpendicular to said first surface of the article, whereby the size of said cavity or region also increases in said direction as a result of the article being wetted.
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19. An absorbent body for use in an absorbent article which includes a liquid receiving layer comprised of soft, preferably resilient material having a high liquid permeability and low liquid dispersion capacity, and a liquid storage structure disposed inwardly of the first layer, wherein said liquid storage structure includes a storage layer which presents a receiving space in which body liquid is taken-up and which is comprised of at least one cavity or region of lower density than the density of the remainder of the storage layer, wherein parts of said storage layer adjacent said receiving space include a material which when wetted increases in volume in a direction generally perpendicular to a plane of said storage layer, whereby the size of said receiving space also increases in said direction when the article is wetted;
- and in that said liquid storage structure also includes a liquid-dispersion layer comprised of material having a high liquid dispersion ability, wherein said storage layer is disposed between said receiving layer and said liquid dispersion layer.
Specification