Disposable diaper having reduced absorbent core to backsheet gluing
AssigneeThe Procter & Gamble Company
InventorsMatthias Konrad Hippe, Bruno Johannes Ehrnsperger, Egon Loeffler, Ernesto G. Bianchi, Carsten Heinrich Kreuzer, Blanca Arizti
Life of this patent
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Abstract
The present disclosure generally relates to disposable diapers having absorbent cores comprising superabsorbent polymer particles which are immobilized by adhesive. The absorbent cores are attached to the backsheets of the disposable diapers in certain attachment zones to reduce see-through and the formation of tension lines on the backsheets.
Claims10
A disposable diaper comprising a backsheet, a topsheet and therein between an absorbent core, the absorbent core having a longitudinal direction with a longitudinal axis and perpendicular thereto a lateral direction with a transverse axis, the absorbent core comprising a front region, a back region and a crotch region therein between and a front lateral edge, an opposing back lateral edge, and longitudinally extending side edges, wherein the absorbent core comprises superabsorbent polymer particles, the superabsorbent polymer particles being immobilized by a first core adhesive, wherein
- a) the absorbent core is attached to a backsheet of the disposable diaper in attachment zones adjacent to the front lateral edge and the back lateral edge of the absorbent core, wherein the absorbent core is unattached to the backsheet in any other region;
- or
- b) the absorbent core is attached to the backsheet of the disposable diaper in the crotch region of the absorbent core in one or more than one attachment zone(s) on or adjacent to the longitudinal axis of the absorbent core, wherein the one or more than one attachment zone(s) cover from 0.2% to 3% of the total surface area of the absorbent core, and wherein the absorbent core is unattached to the backsheet in any other region;
- or
- c) the absorbent core is attached to the backsheet of the disposable diaper in the crotch region of the absorbent core in attachment zones adjacent to the longitudinal side edges of the absorbent core, wherein the absorbent core is unattached to the backsheet in any other region;
- or
- d) the absorbent core is attached to the backsheet of the disposable diaper in combinations of any of the attachment zones of a) to c), wherein the absorbent core is unattached to the backsheet in any other region;
- wherein the absorbent core comprises one or more channels which are free of the superabsorbent polymer particles;
- wherein the one or more channels are provided in areas other than the attachment zone(s);
- wherein the one or more channels do not extend onto the front and back lateral edges and longitudinal edges of the absorbent core.
Dependencies are inferred from the claim text.