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Patents

Three-Dimensional Substrates:

U.S. Patent No. 10,206,826

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By: Karen McIntyre

Editor, Nonwovens Industry

Olaf Erik Isele, West Chester, OH; Jörg Endres, Frankfurt am Main, Germany; Gueltekin Erdem, Frankfurt am Main, Germany; Rodrigo Rosati, Frankfurt am Main, Germany; Paul Thomas Weisman, Cincinnati, OH; Sharon Ann Young, Mason, OH; and Mike P. Purdon, Mason, OH.
Assigned to The Procter & Gamble Company, Cincinnati, OH.

Filed: 3/2/15
Issued: 2/19/19

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 μm to about 4000 μm, 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 μm to about 2000 μm, according to the Recess Height Test; and wherein the topsheet has an overall z-directional height in the range of about 1000 μm to about 6000 μm, according to the Overall Substrate Height Test.

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