Absorbent article with conforming features

Patent metadata

Field	Value
Publication number	US-11266542-B2
Application number	US-201816181635-A
Country	US
Kind code	B2
Filing date	Nov 6, 2018
Priority date	Nov 6, 2017
Publication date	Mar 8, 2022
Grant date	Mar 8, 2022

Abstract

An absorbent has longitudinal and lateral centerlines, first, second, and target regions, the target region being disposed between the first second regions. Each of the first, second target regions extend laterally across the disposable absorbent article. The disposable absorbent article also has a topsheet; a backsheet; an absorbent core disposed between the topsheet and backsheet; a fluid management layer disposed between the topsheet and absorbent core; and a target zone disposed in the target region. The target zone has a first plurality of conforming features in at least the absorbent core or a combination of the absorbent core and at least one of the topsheet or fluid management layer. The absorbent article also has a long fiber network.

First claim

The invention claimed is:

1. A disposable absorbent article having a longitudinal centerline and a lateral centerline, a first region, a second region, and a target region disposed between the first region and the second region, each of the first region, the second region, and target region extending laterally across the disposable absorbent article, the disposable absorbent article further comprising:
a topsheet;
a backsheet;
an absorbent core disposed between the topsheet and the backsheet;
a fluid management layer disposed between the topsheet and the absorbent core;
a target zone disposed in the target region, wherein the target zone comprises a first plurality of conforming features in at least the absorbent core or a combination of the absorbent core and at least one of the topsheet or the fluid management layer;
a long fiber network comprised by at least one of the absorbent core, the topsheet, the fluid management layer, or a combination of the absorbent core and at least one of the fluid management layer or the topsheet;
and
a second plurality of conforming features, wherein the second plurality of conforming features are different than the first plurality of conforming features in at least one of shape, depth, length, distance between adjacent features, density of features per square cm, or orientation of the feature, wherein the second plurality of conforming features are comprised by a first zone and/or a second zone and wherein the first zone and the second zone are disposed laterally and/or longitudinally outboard of the target zone in the target region;
wherein the target zone has a lower bending modulus and/or bending stiffness than the first zone and/or the second zone as measured by the three point bending test disclosed herein.

2. The disposable absorbent article of claim 1 , wherein the absorbent core comprises a plurality of cellulose fibers, wherein the absorbent core comprises the long fiber network.

3. The disposable absorbent article of claim 2 , wherein the absorbent core is an airlaid absorbent core comprising a plurality of cellulose fibers and a plurality of bondable fibers and wherein the bondable fibers comprise at least 15 percent by weight of the absorbent core.

4. The disposable absorbent article of claim 3 , wherein the bondable fibers are staple length.

5. The disposable absorbent article of claim 3 , wherein the bondable fibers are continuous.

6. The disposable absorbent article of claim 1 , wherein the long fiber network is comprised by the combination of the absorbent core and the fluid management layer.

7. The disposable absorbent article of claim 6 , wherein the absorbent core comprises a first basis weight, wherein the fluid management layer comprises a second basis weight, and wherein the second basis weight is at least 25 percent of the first basis weight.

8. The disposable absorbent article of claim 7 , wherein the fluid management layer comprises staple length fibers.

9. The disposable absorbent article of claim 8 , wherein the fluid management layer is hydroentangled or needlepunched.

10. The disposable absorbent article of claim 6 , wherein the fluid management layer comprises cellulose fibers and a plurality of bicomponent fibers, wherein the absorbent core comprises a first basis weight and the bicomponent fibers comprise a second basis weight, wherein the second basis weight is at least 25 percent of the first basis weight.

11. The disposable absorbent article of claim 1 , wherein the long fiber network is comprised by the combination of the absorbent core and the topsheet.

12. The disposable absorbent article of claim 1 , wherein the long fiber network is comprised by the combination of the absorbent core, the fluid management layer, and the topsheet.

13. The disposable absorbent article of claim 1 , wherein each of the first zone and second zone extend from the first region to the second region.

14. The disposable absorbent article of claim 13 , wherein the target zone extends from the first region to the second region.

15. The disposable absorbent article of claim 13 , wherein the each of the first zone and second zone are disposed longitudinally outboard of the target zone.

16. The disposable absorbent article of claim 1 , wherein the absorbent article has a blot to caliper ratio of less than 11 and/or a stiffness to caliper ratio of 4 or less, as measured by the blot test, caliper test, and three point bend test.

Assignees

• Procter & Gamble

Inventors

• Bewick-Sonntag Christopher Philip
• Poondru Shirdish
• Hammons John Lee
• Arora Kelyn Anne

Classifications

• A61F13/5116 Primary

  being formed of multiple layers (A61F13/5123 takes precedence) · CPC title

• A61F13/53747

  the layer is facing the topsheet (layer is part of the topsheet A61F13/511) · CPC title

• A61F13/53

  characterised by the absorbing medium (A61F13/20 takes precedence) · CPC title

• D04H1/04

  from fleeces or layers composed of fibres having existing or potential cohesive properties, e.g. natural fibres, prestretched or fibrillated artificial fibres (felting apparatus D04H17/00) · CPC title

• A61F13/15804

  Plant, e.g. involving several steps · CPC title