Absorbent article with multi-layer folded absorbent core
AssigneeAttends Healthcare Products, Inc.
InventorsHarry Chmielewski, Paul Ducker, Jacob Vrooman, Thomas A. Kaiser, Tim Sergeant
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Abstract
Absorbent laminates and multi-layer, folded absorbent cores comprising the absorbent laminates for use in absorbent articles are presented. Specifically, multi-layer, folded absorbent cores are presented that are formed from an absorbent laminate comprising an absorbent layer between two tissue layers, in which the absorbent core includes a central channel running longitudinally along the core and crenellations profiled along the thickness of the core and providing enhanced liquid distribution across the core surface area or profile and improved liquid absorption into the laminate.
Claims20
An absorbent core comprising a longitudinally folded absorbent laminate, the longitudinally folded absorbent laminate comprising:
- an upper laminate layer;
- a lower laminate layer;
- and
- an absorbent layer positioned between the upper laminate layer and the lower laminate layer, the absorbent layer comprising greater than about 90 percent by weight super absorbent polymer (SAP);
- wherein the longitudinally folded absorbent laminate is folded to form a longitudinally folded multi-layer absorbent laminate of at least five layers of laminate;
- wherein the longitudinally folded multi-layer absorbent laminate has two lateral laminate sides and a width extending between the laminate sides, a first one of the layers spans the entirety of the width, a second one of the layers is disposed above the first layer and spans between 80 percent and 92 percent of the width, third and fourth layers are disposed between the first and second layers and each span less of the width than does the second layer, and a fifth layer is disposed between the third and fourth layers and spans less of the width than does at least one of the third and fourth layers;
- and
- wherein laterally opposing portions of at least the second and third layers define a longitudinally-extending channel above at least the first layer.
An absorbent core comprising a longitudinally folded multi-layer absorbent laminate, the longitudinally folded multi-layer absorbent laminate comprising:
- a substrate laminate layer;
- and
- an absorbent layer positioned and adhered on the substrate laminate layer, the absorbent layer containing SAP;
- wherein the longitudinally folded multi-layer absorbent laminate is folded to form a longitudinally folded multi-layer absorbent laminate of at least four layers of laminate;
- and
- wherein the longitudinally folded multi-layer absorbent laminate has two lateral laminate sides and a width extending between the laminate sides, a first one of the layers spans the entire width, a second one of the layers of laminate has two portions that extend inwardly relative to the laminate sides to first folds that are separated from one another by a first lateral distance, a third layer of laminate is disposed between the first and second layers of laminate and has two portions that extend outwardly from the first folds toward the laminate sides, and at least a fourth one of the layers of laminate is disposed between the first and third layers of laminate and has two portions that extend inwardly relative to the laminate sides to inner edges or folds that are separated from one another by a second lateral distance that is equal to or smaller than the first lateral distance;
- wherein laterally opposing portions of each of at least the second and third layers define a longitudinally-extending channel above at least the first layer and between at least the first folds.
Dependencies are inferred from the claim text.