Absorbent products having high total front pad AULs
OwnerDennis Chia-Bin Chen, Andrew Bakerinventors
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Abstract
An absorbent core for use in an absorbent article is disclosed which has a front pad comprising a two inch diameter circle having substantially as its center the insult point that is capable of absorbing 32 grams or more of an aqueous solution comprising 1.0 weight % sodium chloride after ten minutes of contact with the solution while under a constant restraining pressure of about 0.5 psi. The absorbent core provides improved protection against leakage in an absorbent article containing the core. A method of designing, optimizing, and predicting good leakage protection in an absorbent article is also disclosed.
Claims29
An absorbent core comprising:
- a composite;
- and
- a wrapping material substantially adjacent to at least some of the outer surface of the composite,
- the absorbent core being associated with an absorbent article, wherein the absorbent core further comprises a front pad and a back pad, the front pad having an absorptive capacity of at least about 32 grams of an aqueous solution containing 1.0 weight % sodium chloride absorbed after ten minutes of contact with the aqueous solution while under a restraining pressure of about 0.5 psi.
An absorbent article, comprising:
- a top sheet material;
- a back sheet material;
- and
- an absorbent core disposed between the top sheet material and the back sheet material;
- wherein the absorbent core comprises:
- a composite;
- and
- a wrapping material substantially adjacent to at least some of the outer surface of the composite,
- wherein the absorbent core further comprises a front pad and a back pad, the front pad having an absorptive capacity of at least about 32 grams of an aqueous solution containing 1.0 weight % sodium chloride absorbed after ten minutes of contact with the aqueous solution while under a restraining pressure of about 0.5 psi.
A method of making an absorbent article, the method comprising:
- preparing a top sheet material;
- preparing a back sheet material;
- preparing an absorbent core;
- and
- disposing the absorbent core at least partially between the top sheet material and the back sheet;
- wherein the absorbent core comprises a front pad and a back pad, the front pad having an absorptive capacity of at least about 32 grams, the absorptive capacity being the amount of an aqueous solution containing 1.0 weight % sodium chloride absorbed after ten minutes of contact with the aqueous solution while under a restraining pressure of about 0.5 psi.
A method of making an absorbent article, the method comprising:
- preparing a chassis;
- preparing an absorbent core;
- and
- operatively associating the chassis and the core,
- wherein the absorbent core comprises a front pad and a back pad, the front pad having an absorptive capacity of at least about 32 grams of an aqueous solution containing 1.0 weight % sodium chloride absorbed after ten minutes of contact with the aqueous solution while under a restraining pressure of about 0.5 psi.
A method of providing leakage protection in an absorbent article, the method comprising:
- preparing a top sheet material;
- preparing a back sheet material;
- preparing an absorbent core;
- and
- disposing the absorbent core at least partially between the top sheet material and the back sheet material,
- wherein the absorbent core comprises a front pad and a back pad, the front pad having an absorptive capacity of at least about 32 grams of an aqueous solution containing 1.0 weight % sodium chloride absorbed after ten minutes of contact with the aqueous solution while under a restraining pressure of about 0.5 psi.
A method of designing an absorbent core to provide good leakage protection, the method comprising:
- preparing an absorbent core, the core comprising a composite;
- determining the insult point of the absorbent core, the insult point located proximately in the area of contact of body exudate with the absorbent core when a substantially similar absorbent core is used in an absorbent article for the containment of body exudate discharged by a wearer of the absorbent article;
- and
- varying the weight and/or composition of the composite in a front pad of the absorbent core, the front pad comprising a two inch diameter circle having substantially as its center the insult point, until the absorptive capacity of the front pad is on average at least about 32 grams of an aqueous solution containing 1.0 weight % sodium chloride absorbed after ten minutes of contact with the aqueous solution while under a restraining pressure of about 0.5 psi.
A method of designing an absorbent core that provides good leakage protection, the method comprising:
- preparing an absorbent core, the absorbent core comprising a composite;
- determining the insult point of the absorbent core, the insult point located proximately in the area of contact of body exudate with the absorbent core when a substantially similar absorbent core is used in an absorbent article for the containment of body exudate discharged by a wearer of the absorbent article;
- varying the weight and/or composition of the composite in a front pad of the absorbent core, the front pad comprising a two inch diameter circle having substantially as its center the insult point, until the absorptive capacity of the front pad on average is at least about 32 grams of an aqueous solution containing 1.0 weight % sodium chloride absorbed after ten minutes of contact with the aqueous solution while under a restraining pressure of about 0.5 psi;
- and
- determining the lowest cost absorbent core with a front pad absorptive capacity of at least about 32 grams.
Dependencies are inferred from the claim text.