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Patents

Absorbent Core Comprising a High Loft Central Layer and Channels

U.S. Patent No. 12,053,358

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By: Tara Olivo

Associate Editor at Nonwovens Industry, Rodman Media

Ernesto Gabriel Bianchi, Oberursel, Germany; and Bruno Johannes Ehrnsperger, Bad Soden, Germany.
Assigned to The Procter & Gamble Company, Cincinnati, OH.

Filed: 8/3/21
Issued: 8/6/24

An absorbent core for use in an absorbent article, the absorbent core extending in a transversal direction and a longitudinal direction, the absorbent core comprising: a fluid-permeable top layer; a bottom layer; a central layer sandwiched between the top layer and the bottom layer, the central layer having a front edge, a back edge and two longitudinally extending side edges, wherein the central layer is a high loft fibrous nonwoven layer comprising synthetic fibers defining void spaces therebetween; and superabsorbent polymer particles disposed within the high loft nonwoven layer in the void spaces between the synthetic fibers of a first zone of the central layer; wherein the central layer has a density of about 0.200 g/cc or less at a pressure of 4.14 kPa, wherein a second zone of the central layer comprises a longitudinally-extending channel substantially free of superabsorbent polymer particles, and wherein the first zone and the second zone both comprise the high loft fibrous nonwoven layer.

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