Absorbent articles with channels

Patent metadata

Field	Value
Publication number	US-11406544-B2
Application number	US-202016903664-A
Country	US
Kind code	B2
Filing date	Jun 17, 2020
Priority date	Aug 27, 2013
Publication date	Aug 9, 2022
Grant date	Aug 9, 2022

Abstract

The present disclosure is directed, in part, to an absorbent article comprising a topsheet, a backsheet and absorbent core positioned at least partially intermediate the topsheet and the backsheet. The absorbent core comprises an absorbent material positioned within a core wrap. The absorbent core defines a first channel therein. A material is positioned at least partially intermediate the topsheet and the core wrap. The material defines a second channel therein.

First claim

What is claimed is:

1. An absorbent article comprising:
a central longitudinal axis;
a total longitudinal length extending in a direction parallel to the central longitudinal axis;
a front waist region;
a rear waist region;
a crotch region positioned intermediate the front waist region and the rear waist region, wherein the front waist region, the rear waist region, and the crotch region each define 1/3 of the total longitudinal length of the absorbent article;
a liquid permeable topsheet forming a portion of a wearer-facing surface of the absorbent article;
a liquid impermeable backsheet;
an absorbent core disposed at least partially intermediate the liquid permeable topsheet and the liquid impermeable backsheet and comprising an absorbent material, wherein the absorbent material is positioned within a core wrap, wherein the absorbent material comprises superabsorbent polymers, wherein the absorbent core defines a first channel therein, and wherein the first channel is free of overlap with the central longitudinal axis; and
a material positioned at least partially intermediate the liquid permeable topsheet and the core wrap, wherein the material comprises synthetic fibers, wherein the material defines a second channel therein, wherein the second channel is free of overlap with the central longitudinal axis, and wherein the second channel extends into the front waist region.

2. The absorbent article of claim 1 , wherein a portion of the liquid permeable topsheet is recessed into the second channel.

3. The absorbent article of claim 1 , wherein the core wrap comprises a first substrate and a second substrate.

4. The absorbent article of claim 1 , wherein at least a portion of the first channel partially overlaps at least a portion of the second channel.

5. The absorbent article of claim 4 , wherein the first and second channels are positioned on a first side of the central longitudinal axis.

6. The absorbent article of claim 1 , wherein the first channel comprises a first arcuate portion.

7. The absorbent article of claim 6 , wherein the second channel comprises a second arcuate portion.

8. The absorbent article of claim 1 , wherein the first channel comprises a first linear portion.

9. The absorbent article of claim 8 , wherein the second channel comprises a second linear portion.

10. The absorbent article of claim 5 , wherein the absorbent core defines a third channel therein, and wherein the third channel is free from overlap with the central longitudinal axis and is positioned on a second side of the central longitudinal axis.

11. The absorbent article of claim 10 , wherein the material defines a fourth channel, and wherein the fourth channel is free from overlap with the central longitudinal axis and is positioned on the second side of the central longitudinal axis.

12. The absorbent article of claim 1 , comprising an elastic waist feature in the front waist region or the rear waist region.

13. An absorbent article comprising:
a central longitudinal axis;
a total longitudinal length extending in a direction parallel to the central longitudinal axis;
a front waist region;
a rear waist region;
an elastic waist feature in the front waist region or the rear waist region;
a crotch region positioned intermediate the front waist region and the rear waist region, wherein the front waist region, the rear waist region, and the crotch region each define 1/3 of the total longitudinal length of the absorbent article;
a liquid permeable topsheet forming a portion of a wearer-facing surface of the absorbent article;
a liquid impermeable backsheet film;
an absorbent core disposed at least partially intermediate the liquid permeable topsheet and the liquid impermeable backsheet film and comprising an absorbent material, wherein the absorbent material is positioned within a core wrap, wherein the absorbent core defines a first channel therein, and wherein the absorbent core defines a second channel therein; and
a material positioned at least partially intermediate the liquid permeable topsheet and the core wrap, wherein the material defines a third channel therein, wherein the third channel extends into the front waist region, and wherein the third channel is free of overlap with the central longitudinal axis.

14. The absorbent article of claim 13 , wherein the first channel is positioned on a first side of the central longitudinal axis, and wherein the second channel is positioned on a second side of the central longitudinal axis.

15. The absorbent article of claim 14 , wherein the material defines a fourth channel therein, and wherein the material comprises synthetic fibers.

16. The absorbent article of claim 15 , wherein the third channel is positioned on the first side of the central longitudinal axis, and wherein the fourth channel is positioned on the second side of the central longitudinal axis.

17. The absorbent article of claim 16 , wherein the first channel at least partially overlaps the third channel, and wherein the second channel at least partially overlaps the fourth channel.

18. The absorbent article of claim 13 , wherein the first channel comprises a linear portion.

19. The absorbent article of claim 13 , wherein the third channel comprises a linear portion.

20. The absorbent article of claim 13 , wherein the third channel comprises an arcuate portion.

Assignees

• Procter & Gamble

Inventors

• Roe Donald Carroll
• Chatterjee Aniruddha
• Greening Ii Nelson Edward
• Grenberg Sharon Irene
• Kreuzer Carsten Heinrich
• Martynus Cornelia Beate
• O'Reilly Marie Brigid
• Rosati Rodrigo
• Sautter Sandra
• Simon Beate
• Stelzig Lutz
• Walther Rachael Eden

Classifications

• A61F2013/530649

  in sponge or foam · CPC title

• A61F2013/15487

  Capillary properties, e.g. wicking · CPC title

• A61F13/53717 Primary

  the layer having a promotional function on liquid propagation in the horizontal direction · CPC title

• A61F13/49001

  having preferential bending zones, e.g. fold lines or grooves · CPC title

• A61F2013/53734

  with compressed lines · CPC title