Absorbent article with conforming features

Patent metadata

Field	Value
Publication number	US-11857397-B2
Application number	US-201816181640-A
Country	US
Kind code	B2
Filing date	Nov 6, 2018
Priority date	Nov 6, 2017
Publication date	Jan 2, 2024
Grant date	Jan 2, 2024

Abstract

A disposable absorbent article is described herein. The disposable absorbent article includes a topsheet, a backsheet, and an absorbent system disposed between the topsheet and the backsheet. At least a portion of the has a plurality of conforming features such that the absorbent article has a blot residual value of less than 30 mg and a bending stiffness of less than 12.

First claim

The invention claimed is:

1. A disposable absorbent article having a longitudinal centerline and a lateral centerline, the disposable absorbent article further comprising:
a topsheet;
a backsheet;
an absorbent core comprising a plurality of absorbent fibers disposed between the topsheet and the backsheet; and
a first plurality of conforming features and a first plurality of discrete nodes in at least the absorbent core or a combination of the absorbent core and the topsheet, wherein the conforming features do not extend through the absorbent core, the conforming features comprising long fiber networks, wherein the long fiber networks comprise about 15% to about 50% by weight of long fibers; wherein the disposable absorbent article has blot residual value of less than 30 mg and a bending stiffness of less than 12, wherein the conforming features do not include embossing features.

2. The disposable absorbent article of claim 1 , wherein the absorbent article has a blot residual to caliper ratio of less than 11 as measured by the blot test and caliper test, respectively.

3. The disposable absorbent article of claim 1 , wherein the absorbent article has a stiffness to caliper ratio of 4 or less as measured by the three point bend and caliper tests, respectively.

4. The disposable absorbent article of claim 1 , wherein the first plurality of conforming features is comprised by the combination of at least the absorbent core and the topsheet.

5. The disposable absorbent article of claim 4 , wherein the absorbent core is unitary airlaid absorbent core comprising a plurality of cellulosic fibers and super absorbent particles, and wherein a ratio of bending stiffness to wet recovery energy is less than 13.

6. The disposable absorbent article of claim 4 , wherein the conforming features are further comprised by a fluid management layer disposed between the topsheet and the absorbent core, wherein the fluid management layer comprises an airlaid material comprising a plurality of cellulosic fibers, wherein the absorbent article has a ratio of bending stiffness to wet recovery energy that is less than 15 as measured by the three point bending test and the bunch compression test as described herein.

7. The disposable absorbent article of claim 4 , wherein the absorbent article comprises a coformed absorbent core comprising continuous fibers and wherein the absorbent article has a ratio of bending stiffness to wet recovery energy that is less than 4 as measured by the three point bending test and the bunch compression test as described herein.

8. The disposable absorbent article of claim 4 , wherein the absorbent article has a blot to caliper ratio of less than 11, as measured by the blot test and caliper test.

9. The disposable absorbent article of claim 4 , wherein the absorbent article has a blot to caliper ratio of less than 19, and wherein the absorbent core comprises an airlaid absorbent core.

10. The disposable absorbent article of claim 4 , wherein the absorbent core is a unitary airlaid absorbent core comprising a plurality of cellulosic fibers and super absorbent particles, and wherein a ratio of bending stiffness to caliper is less than 15.

11. The disposable absorbent article of claim 4 , wherein the conforming features are further comprised by a fluid management layer disposed between the topsheet and the absorbent core, wherein the fluid management layer comprises an airlaid material comprising a plurality of cellulosic fibers, wherein the disposable absorbent article has a ratio of bending stiffness to caliper of less than 5.

12. The disposable absorbent article of claim 4 , wherein the absorbent core is a coformed absorbent core comprising continuous fibers, and wherein the absorbent article has a ratio of bending stiffness to caliper of 4 or less.

13. The disposable absorbent article of claim 1 , wherein the absorbent core is a unitary airlaid absorbent core comprising a plurality of cellulosic fibers and super absorbent particles, and wherein the disposable absorbent article has a residual fluid in the top 0.5 mm of less than 200 μl as measured by the NMR mouse method.

14. The disposable absorbent article of claim 1 , further comprising a fluid management layer disposed between the topsheet and the absorbent core, wherein the fluid management layer is an airlaid material comprising a plurality of cellulose fibers, wherein the disposable absorbent article has a residual fluid in the top 0.5 mm of less than 20 μl as measured by the NMR mouse method.

15. The disposable absorbent article of claim 1 , wherein the absorbent core is a coformed absorbent core comprising continuous fibers, and wherein the absorbent article has a residual fluid in the top 0.5 mm of less than 7 μl and a free fluid acquisition time of less than 100 seconds as measured by the NMR mouse method and the Free Fluid Acquisition tests, respectively.

16. The disposable absorbent article of claim 1 , wherein the absorbent article has a wet recovery energy of at least 0.4 mJ, as measured by the bunch compression test described herein.

17. The disposable absorbent article of claim 1 , wherein the absorbent core is a unitary airlaid absorbent core comprising a plurality of cellulosic fibers and super absorbent particles, and wherein the disposable absorbent article has a free fluid acquisition time o cf less than 60 seconds as measured by the free fluid acquisition test.

18. The disposable absorbent article of claim 1 , further comprising a fluid management layer disposed between the topsheet and the absorbent core, wherein the fluid management layer is an airlaid material comprising a plurality of cellulose fibers, and wherein the absorbent article has a residual fluid in the top 0.5 mm of less than 20 μl and a free fluid acquisition time of less than 40 seconds as measured by the NMR mouse method and the Free Fluid Acquisition tests, respectively.

19. The disposable absorbent article of claim 1 , wherein the average length of the long fibers is greater than about 6 mm.

Assignees

• Procter & Gamble
• Procter & Gamble

Inventors

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

Classifications

• A61F13/15699 Primary

  Forming webs by bringing together several webs, e.g. by laminating or folding several webs, with or without additional treatment of the webs · CPC title

• A61F13/15203

  Properties of the article, e.g. stiffness or absorbency (chemical aspects A61L15/00) · CPC title

• A61F13/15707

  Mechanical treatment, e.g. notching, twisting, compressing, shaping · CPC title

• A61F13/15723

  Partitioning batts; Cutting · CPC title

• A61F13/15731

  Treating webs, e.g. for giving them a fibrelike appearance, e.g. by embossing · CPC title