Granted Patent B2

US 12,295,822 · App. 17/979,829 · Granted May 13, 2025

Inventors: Maja Wciorka (Braunschweig, DE); Carsten Heinrich Kreuzer (Hofheim, DE); Udo Friedel Schoenborn (Bad Soden, DE)

Assignee: The Procter & Gamble Company

A61F13/539A61F13/495A61F13/496A61F13/536A61F2013/5307A61F2013/53908

Abstract

Claims (30)

1. An absorbent article comprising:

a. a topsheet;

b. a backsheet;

c. an absorbent core disposed between the topsheet and the backsheet, the absorbent core comprising a first substrate, a second substrate, and absorbent particulate polymer material and wood pulp arranged between the first substrate and the second substrate; and

d. an acquisition layer disposed between the absorbent core and the topsheet;

e. wherein the absorbent core comprises a longitudinally-extending cavity comprising a cavity volume;

f. wherein the second substrate deflects into the cavity and is adhered to the first substrate within the cavity;

g. wherein the cavity volume increases when the absorbent particulate polymer material is contacted with a liquid and swells;

h. wherein the second substrate is adhered to the first substrate within the cavity via glue; and

i. wherein the cavity does not reach any longitudinal or lateral edge of the absorbent core.

2. The absorbent article of claim 1 , wherein the cavity has a perimeter at least partially defined by the absorbent particulate polymer material.

3. The absorbent article of claim 1 , wherein the cavity is substantially free of the absorbent particulate polymer material and the wood pulp.

4. The absorbent article of claim 1 , wherein the absorbent core exhibits a wet immobilization of more than 50%, according to the Wet Immobilization Test.

5. The absorbent article of claim 1 , wherein the absorbent article is a taped diaper.

6. The absorbent article of claim 1 , wherein the cavity is located in the absorbent core along a central longitudinal axis of the absorbent article at a position which, when the absorbent article is worn by a wearer, will be in alignment with a predetermined region about an anus of the wearer.

7. The absorbent article of claim 1 , further comprising an acquisition system comprising a nonwoven.

8. An absorbent article comprising:

a. a topsheet;

b. a backsheet; and

c. an absorbent core disposed between the topsheet and the backsheet, the absorbent core comprising a first substrate, a second substrate, and absorbent particulate polymer material arranged between the first substrate and the second substrate;

d. wherein the absorbent core comprises a longitudinally-extending cavity comprising a cavity volume;

e. wherein the cavity volume increases when the absorbent particulate polymer material is contacted with a liquid and swells;

f. wherein the second substrate deflects into the cavity and is adhered to the first substrate within the cavity; and

g. wherein the cavity does not reach any longitudinal or lateral edge of the absorbent core.

9. The absorbent article of claim 8 , wherein the cavity is substantially free of absorbent particulate polymer material.

10. The absorbent article of claim 9 , wherein the cavity has a perimeter at least partially defined by the absorbent particulate polymer material.

11. The absorbent article of claim 8 , wherein the absorbent core further comprises wood pulp.

12. The absorbent article of claim 8 , wherein the absorbent core exhibits a wet immobilization of more than 50%, according to the Wet Immobilization Test.

13. The absorbent article of claim 8 , wherein the second substrate is adhered to the first substrate within the cavity via glue.

14. The absorbent article of claim 8 , wherein the second substrate is adhered to the first substrate within the cavity via heat and/or pressure.

Continuity (6)

References Cited (259)

Cited By (1)

US 12,433,801