Absorbent articles containing absorbent cores having at least one outer layer containing microwells
OwnerJohn D. Litvayinventor
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Abstract
The present invention relates generally to an absorbent core for an absorbent article, and more particularly to an absorbent core having at least one outer layer containing a plurality of microwells and optionally adhesives. Such absorbent cores provide the flexibility of creating precise zoning of particular properties throughout the core, and they provide improved comfort and fit.
Claims59
An absorbent article having a longitudinal dimension and a lateral dimension comprising:
- a top sheet;
- a back sheet;
- and
- a absorbent core disposed at least partially between the top sheet and the back sheet;
- wherein the absorbent core is comprised of:
- an upper layer;
- a lower layer;
- and
- a central absorbent layer including a mixture of fibrous material and SAP disposed between the upper and lower layer, wherein at least one of the upper layer or the lower layer comprises a plurality of microwells.
An absorbent laminate comprising:
- an upper layer;
- a lower layer;
- and
- a central absorbent layer including a mixture of fibrous material and SAP disposed between the upper and lower layer, wherein at least one of the upper layer or the lower layer comprises a plurality of microwells.
The absorbent laminate of claim 256, wherein the upper and lower layer are comprised of the same material, and the material is selected from the group consisting of tissue, airlaid fluff pulp, synthetic non-woven material, and mixtures or combinations thereof.
A method of making an absorbent article comprising:
- a) preparing a top sheet and a back sheet;
- b) preparing an absorbent core by:
- b1) providing an upper layer;
- b2) providing a lower layer;
- b3) providing a central absorbent layer that comprises a mixture of fibrous material and superabsorbent polymer (SAP);
- and
- b4) disposing the central absorbent layer at least partially between the upper layer and the lower layer;
- and
- c) disposing the absorbent core at least partially between the top sheet and the back sheet,
- wherein at least one of the upper layer or the lower layer comprises a plurality of microwells.
A method of making an absorbent laminate comprising:
- providing an upper layer;
- providing a lower layer;
- providing a central absorbent layer that comprises a mixture of tow fibers and superabsorbent polymer (SAP);
- and
- disposing the central absorbent layer at least partially between the upper layer and the lower layer,
- wherein at least one of the upper layer or the lower layer comprises a plurality of microwells.
Dependencies are inferred from the claim text.