IP Library › Granted Patent US 11,083,644
Granted Patent B2
US 11,083,644 · App. 15/952,702 · Granted Aug 10, 2021

Disposable absorbent article

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
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Quick Facts
Patent No.
US 11,083,644
App. No.
15/952,702
Granted
Aug 10, 2021
Kind
B2
Abstract

A disposable absorbent article is provided having an absorbent core located in a chassis and including absorbent particulate polymer material defining at least one cavity. The absorbent core may be substantially cellulose free or comprise a combination of particulate absorbent polymer material and wood pulp. Methods for making such an absorbent core and corresponding disposable absorbent article are also disclosed.

Claims (53)

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 material 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 cavity;

f. wherein the second substrate deflects into the cavity;

g. wherein a first region of the absorbent core proximate the cavity comprises a lower basis weight of the absorbent material as compared to a second region of the absorbent core surrounding the first region;

h. wherein the acquisition layer comprises an aperture corresponding to the absorbent core cavity;

i. wherein the cavity comprises a first channel extending in a first direction and a second channel extending in a second direction that is different from the first direction; and

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

2. The absorbent article of claim 1 , wherein the second substrate deflects into the cavity but does not contact the first substrate.

3. The absorbent article of claim 1 , wherein the second substrate deflects into the cavity and contacts the first substrate.

4. The absorbent article of claim 1 , wherein the second substrate deflects into the cavity and is adhered to the second substrate within the cavity.

5. The absorbent article of claim 4 , wherein the second substrate is adhered to the first substrate within the cavity via glue.

6. The absorbent article of claim 4 , wherein the second substrate is adhered to the first substrate within the cavity via thermoplastic material.

7. The absorbent article of claim 4 , wherein the second substrate is adhered to the first substrate within the cavity via heat and/or pressure.

8. The absorbent article of claim 1 , wherein the second substrate is adhered to the first substrate within the cavity via thermoplastic material, and wherein the absorbent core exhibits a wet immobilization of more than 50% according to the Wet Immobilization Test described herein.

9. The absorbent article of claim 1 , wherein the first channel extends in a direction substantially parallel to a longitudinal axis of the absorbent article.

10. The absorbent article of claim 1 , wherein the first channel comprises a width of from about 5% to about 60% of a width of the absorbent core.

11. The absorbent article of claim 1 , wherein the first channel comprises a width between about 10 mm and about 40 mm.

12. The absorbent article of claim 1 , wherein the first channel comprises a length of from about 2% to about 50% of a length of the absorbent core.

13. The absorbent article of claim 1 , wherein the first channel comprises a length between about 10 mm and about 100 mm.

14. The absorbent article of claim 1 , wherein the first channel is connected to the second channel.

15. The absorbent article of claim 1 , wherein the aperture comprises an aperture width that substantially spans a width of the cavity.

16. The absorbent article of claim 1 , wherein the absorbent material comprises absorbent particulate polymer material.

17. The absorbent article of claim 1 , wherein the absorbent material comprises wood pulp.

18. The absorbent article of claim 1 , wherein the absorbent materials comprises both absorbent particulate polymer material and wood pulp.

19. The absorbent article of claim 1 , wherein the topsheet comprises an opening.

20. 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 material 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 cavity;

f. wherein the second substrate deflects into the cavity;

g. wherein a region of the core corresponding to the cavity comprises substantially none of the absorbent material;

h. wherein the acquisition layer comprises an aperture corresponding to the absorbent core cavity;

i. wherein the cavity comprises a first channel extending in a first direction and a second channel extending in a second direction that is different from the first direction; and

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

21. The absorbent article of claim 20 , wherein the second substrate deflects into the cavity and is adhered to the first substrate within the cavity.

22. The absorbent article of claim 20 , wherein the second substrate is adhered to the first substrate within the cavity via glue.

23. The absorbent article of claim 20 , wherein the second substrate is adhered to the first substrate within the cavity via thermoplastic material.

24. The absorbent article of claim 20 , wherein the second substrate is adhered to the first substrate within the cavity via thermoplastic material, and wherein the absorbent core exhibits a wet immobilization of more than 50% according to the Wet Immobilization Test described herein.

25. The absorbent article of claim 20 , wherein the second substrate is adhered to the first substrate within the cavity via heat and/or pressure.

26. The absorbent article of claim 20 , wherein the first channel extends in a direction substantially parallel to a longitudinal axis of the absorbent article.

27. The absorbent article of claim 20 , wherein the first channel comprises a width of from about 5% to about 60% of a width of the absorbent core.

28. The absorbent article of claim 20 , wherein the first channel comprises a width between about 10 mm and about 40 mm.

29. The absorbent article of claim 20 , wherein the first channel comprises a length of from about 2% to about 50% of a length of the absorbent core.

30. The absorbent article of claim 20 , wherein the first channel comprises a length between about 10 mm and about 100 mm.

31. The absorbent article of claim 20 , wherein the aperture comprises an aperture width that substantially spans a width of the cavity.

32. The absorbent article of claim 20 , wherein the absorbent material comprises both absorbent particulate polymer material and wood pulp.

33. The absorbent article of claim 20 , wherein the topsheet comprises an opening.

Continuity (4)
Continuation 14700188 · Apr 30, 2015
Continuation 12416383 · Apr 1, 2009
Provisional Application 61048668 · Apr 29, 2008
Related Publication 20180228672A1 · Aug 16, 2018
Cited By (2)
US 12,295,822 US 12,433,801