Three-dimensional substrates
First Claim
1. An absorbent article comprising:
- a central longitudinal axis;
a liquid permeable topsheet;
a backsheet; and
an absorbent core positioned at least partially intermediate the topsheet and the backsheet, wherein the absorbent core comprises an absorbent material comprising at least 90% superabsorbent polymers by weight of the absorbent material;
the topsheet comprising;
a first layer comprising a hydrophobic nonwoven material, wherein the hydrophobic nonwoven material overlaps the central longitudinal axis of the absorbent article; and
a second layer comprising a hydrophilic nonwoven material, wherein the first layer is joined to the second layer;
wherein the topsheet comprises a plurality of recesses, a plurality of dome-shaped projections forming a portion of a wearer-facing surface of the topsheet, and a plurality of land areas, wherein the land areas surround at least a majority of the plurality of dome-shaped projections and a plurality of the recesses, wherein the plurality of recesses, the plurality of dome-shaped projections, and the plurality of land areas, together form a first three-dimensional surface on a first side of the topsheet and a second three-dimensional surface on a second side of the topsheet, wherein a majority of the projections have a z-directional height in the range of about 500 μ
m to about 4000 μ
m, according to the Projection Height Test, wherein a majority of the recesses define an aperture at a location most distal from a top peak of an adjacent dome-shaped projection and defined at a lowermost plane of the topsheet, and wherein the majority of the recesses have a z-directional height in the range of about 500 μ
m to about 2000 μ
m, according to the Recess Height Test; and
wherein the topsheet has an overall z-directional height in the range of about 1000 μ
m to about 6000 μ
m, according to the Overall Substrate Height Test.
1 Assignment
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Accused Products
Abstract
A liquid permeable substrate for an absorbent article is disclosed. The substrate includes a first layer including a hydrophobic material and a second layer including a hydrophilic material. The first layer is joined to the second layer. The substrate includes a plurality of recesses, a plurality of projections, and a plurality of land areas. The land areas surround at least a majority of the plurality of projections and a plurality of the recesses. The plurality of recesses, the plurality of projections, and the plurality of land areas together form a first three-dimensional surface on a first side of the substrate and a second three-dimensional surface on a second side of the substrate. The substrate has an overall z-directional height in the range of about 1000 μm to about 6000 μm according to the Overall Substrate Height Test.
264 Citations
38 Claims
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1. An absorbent article comprising:
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a central longitudinal axis; a liquid permeable topsheet; a backsheet; and an absorbent core positioned at least partially intermediate the topsheet and the backsheet, wherein the absorbent core comprises an absorbent material comprising at least 90% superabsorbent polymers by weight of the absorbent material; the topsheet comprising; a first layer comprising a hydrophobic nonwoven material, wherein the hydrophobic nonwoven material overlaps the central longitudinal axis of the absorbent article; and a second layer comprising a hydrophilic nonwoven material, wherein the first layer is joined to the second layer; wherein the topsheet comprises a plurality of recesses, a plurality of dome-shaped projections forming a portion of a wearer-facing surface of the topsheet, and a plurality of land areas, wherein the land areas surround at least a majority of the plurality of dome-shaped projections and a plurality of the recesses, wherein the plurality of recesses, the plurality of dome-shaped projections, and the plurality of land areas, together form a first three-dimensional surface on a first side of the topsheet and a second three-dimensional surface on a second side of the topsheet, wherein a majority of the projections have a z-directional height in the range of about 500 μ
m to about 4000 μ
m, according to the Projection Height Test, wherein a majority of the recesses define an aperture at a location most distal from a top peak of an adjacent dome-shaped projection and defined at a lowermost plane of the topsheet, and wherein the majority of the recesses have a z-directional height in the range of about 500 μ
m to about 2000 μ
m, according to the Recess Height Test; andwherein the topsheet has an overall z-directional height in the range of about 1000 μ
m to about 6000 μ
m, according to the Overall Substrate Height Test. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. An absorbent article comprising:
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a central longitudinal axis; a topsheet; a backsheet; and an absorbent core positioned at least partially intermediate the topsheet and the backsheet, wherein the absorbent core comprises an absorbent material comprising at least 85% superabsorbent polymers by weight of the absorbent material; the topsheet comprising; a first layer comprising a hydrophobic nonwoven material; and a second layer comprising a hydrophilic nonwoven material, wherein the first layer is joined to the second layer, and wherein the first layer and the second layer are coterminous with each other; wherein the topsheet comprises a plurality of recesses, a plurality of dome-shaped projections forming a portion of a wearer-facing surface of the absorbent article, and a plurality of land areas, wherein the land areas surround at least a majority of the plurality of dome-shaped projections and a plurality of the recesses, wherein the plurality of recesses, the plurality of dome-shaped projections, and the plurality of land areas, together form a first three-dimensional surface on a first side of the topsheet and a second three-dimensional surface on a second side of the topsheet, wherein a majority of the dome-shaped projections have a z-directional height in the range of about 500 μ
m to about 4000 μ
m, according to the Projection Height Test, wherein a majority of the recesses define an aperture at a location most distal from a top peak of an adjacent dome-shaped projection, and wherein the majority of the recesses have a z-directional height in the range of about 500 μ
m to about 2000 μ
m, according to the Recess Height Test;wherein the topsheet has an overall z-directional height in the range of about 1000 μ
m to about 6000 μ
m, according to the Overall Substrate Height Test;wherein the dome-shaped projections and the recesses are formed by portions of the first layer and portions of the second layer; and wherein the apertures are formed through the first layer and through the second layer. - View Dependent Claims (32, 33, 34)
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35. An absorbent article comprising:
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a central longitudinal axis; a central lateral axis extending in a direction perpendicular to the central longitudinal axis; an absorbent core; a liquid impermeable backsheet; a liquid permeable topsheet, wherein the absorbent core is positioned at least partially intermediate the liquid permeable topsheet and the liquid impermeable backsheet, wherein the absorbent core comprises an absorbent material comprising at least 80% superabsorbent polymers by weight of the absorbent material, and wherein the liquid permeable topsheet comprises; a first layer comprising a hydrophobic nonwoven material, wherein the hydrophobic nonwoven material overlaps the central longitudinal axis; and a second layer comprising a hydrophilic nonwoven material, wherein the first layer is joined to the second layer, and wherein the hydrophilic nonwoven material overlaps the central longitudinal axis; wherein the topsheet comprises a plurality of recesses, a plurality of dome shaped projections forming a portion of a wearer-facing surface of the topsheet, and a plurality of land areas, wherein the land areas surround at least a majority of the plurality of dome-shaped projections and a plurality of the recesses, wherein the plurality of recesses, the plurality of dome-shaped projections, and the plurality of land areas, together form a first three-dimensional surface on a first side of the topsheet and a second three-dimensional surface on a second side of the topsheet, wherein a majority of the dome-shaped projections have a z-directional height in the range of about 500 μ
m to about 4000 μ
m, according to the Projection Height Test, wherein a majority of the recesses define an aperture at a location most distal from a top peak of an adjacent dome-shaped projection, wherein the aperture is defined at a lowermost plane of the topsheet, wherein top peaks of the dome-shaped projections form a topmost plane of the topsheet, wherein the land areas are positioned intermediate the lowermost plane and the topmost plane, and wherein the majority of the recesses have a z-directional height in the range of about 500 μ
m to about 2000 μ
m, according to the Recess Height Test; andwherein the topsheet has an overall z-directional height in the range of about 1000 μ
m to about 6000 μ
m, according to the Overall Substrate Height Test. - View Dependent Claims (36, 37, 38)
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Specification