Patents

Absorbent Articles with Improved Core:

March 9, 2017

U.S. Patent No. 9,554,951

Birgit Wirtz, Cologne, Germany; Walter Pieter Hendrik Laurentius Van Der Klugt, Mechernich Satzvey, Germany; Rodrigo Rosati, Frankfurt, Germany; Ernesto G. Bianchi, Oberursel, Germany; Aniruddha Chatterjee, Kelkheim, Germany; Carsten Heinrich Kreuzer, Hofheim, Germany; and Holger Beruda, Schwalbach am Taunus, Germany.
Assigned to The Procter & Gamble Company, Cincinnati, OH.

Filed: 6/28/13
Issued: 1/31/17

An absorbent article comprising a topsheet, a backsheet and an absorbent core disposed between the topsheet and the backsheet, wherein the absorbent core comprises: a first absorbent layer comprising a first substrate and a mixed layer deposited on the first substrate, the mixed layer comprising a mixture of first superabsorbent polymer particles and cellulosic fibers; and a second absorbent layer comprising a second substrate, a layer of second superabsorbent polymer particles deposited on the second substrate, and a fibrous layer of thermoplastic adhesive material covering the layer of second superabsorbent polymer particles, wherein the layer of second superabsorbent polymer particles is substantially cellulose free; wherein the first absorbent layer and the second absorbent layer are combined such that at least a portion of the fibrous layer of thermoplastic adhesive material of the second absorbent layer contacts at least a portion of the mixed layer of the first absorbent layer, and wherein the first absorbent layer is placed closer to the topsheet than the second absorbent layer, and wherein the core has a longitudinal axis, and wherein the second absorbent layer comprises one or more channels substantially extending in the longitudinal direction of the core, the channels being free of the second superabsorbent polymer particles and each channel being defined by continuous side wall portions; wherein in the channels the second substrate is bonded to the side wall portions; and wherein the first substrate is C-wrapped along longitudinal edges of the core to form C-flaps and the second substrate is disposed inwardly of these C-flaps.