Absorbent article comprising an intermediate layer

Patent metadata

Field	Value
Publication number	US-2026026978-A1
Application number	US-202519347025-A
Country	US
Kind code	A1
Filing date	Oct 1, 2025
Priority date	Jun 1, 2021
Publication date	Jan 29, 2026
Grant date	—

Abstract

The present disclosure relates to an absorbent article comprising a topsheet, a backsheet, and a layer of absorbent material disposed between the topsheet and the backsheet, wherein the layer of absorbent material comprises superabsorbent polymer, and an intermediate layer comprising a nonwoven web. The intermediate layer is disposed between the layer of absorbent material and the backsheet, wherein the intermediate layer has a MD tensile/basis weight no greater than about 0.75 N/5 cm/g/m2 as measured according to Tensile Strength Test, and a thickness/basis weight no less than about 0.078 mm/g/m2, as measured FTT Test.

First claim

What is claimed is:

1 . An absorbent article comprising:
a topsheet, a backsheet, an elastic waist feature disposed either in a front waist region or a back waist region, and a layer of absorbent material disposed between the topsheet and the backsheet, wherein the layer of absorbent material comprises superabsorbent polymer; and an intermediate layer comprising a nonwoven web, the intermediate layer being disposed between the layer of absorbent material and the backsheet; wherein the intermediate layer has a MD tensile/basis weight no greater than about 0.75 N/5 cm/g/m 2 as measured according to Tensile Strength Test, and a thickness/basis weight of between about 0.008 mm/g/m 2 and about 0.011 mm/g/m 2 , as measured according to the FTT Test.

2 . The absorbent article of claim 1 , wherein the nonwoven web comprises first thermoplastic fibers having a first melting temperature and second thermoplastic fibers having a second melting temperature, and wherein a difference between the first melting temperature and the second melting temperature is at least about 40° C.

3 . The absorbent article of claim 1 , wherein the intermediate layer has a compression average rigidity no greater than about 400 gf/mm 3 as measured according to FTT Test.

4 . The absorbent article of claim 1 , wherein the intermediate layer has a bending work no greater than about 2000 gf×mm×rad as measured according to FTT Test.

5 . The absorbent article of claim 2 , wherein the second thermoplastic fibers have a melting temperature greater at least about 40° C. than the first thermoplastic fibers.

6 . The absorbent article of claim 2 , wherein the second thermoplastic fibers are hollow fibers or shaped fibers.

7 . The absorbent article of claim 5 , wherein the first thermoplastic fibers are heat-fused one another.

8 . The absorbent article of claim 5 , wherein the second thermoplastic fibers are not heat-fused one another.

9 . The absorbent article of claim 2 , wherein the nonwoven web comprises third fibers.

10 . The absorbent article of claim 1 , wherein the intermediate layer comprises a nonwoven web selected from the group consisting of an air-through bonded nonwoven made of staple fibers, carded calendar bonded nonwovens made of staple fibers and combinations thereof, a spunlace nonwoven made of staple fibers, an air-through bonded nonwoven made of spunlaid fibers and a spunlace nonwoven made of spunlaid fibers.

11 . The absorbent article of claim 2 , wherein the nonwoven web comprises the first thermoplastic fibers of at least 40% by weight of the nonwoven web.

12 . The absorbent article of claim 2 , wherein the nonwoven web comprises the second thermoplastic fiber of at least 30% by weight of the nonwoven web.

13 . The absorbent article of claim 1 , further comprising an upper acquisition and distribution system with at least one layer, the upper acquisition and distribution system being disposed between the topsheet and the layer of absorbent material.

14 . The absorbent article of claim 1 , wherein the layer of absorbent material is partly or fully enclosed by and in direct contact with an upper substrate layer and a lower substrate layer, wherein the upper substrate layer is between the topsheet and the layer of absorbent material or between the upper acquisition and distribution system and the layer of absorbent material, and wherein the lower substrate layer is between the layer of absorbent material and the intermediate layer.

15 . The absorbent article of claim 1 , wherein the layer of absorbent material and the intermediate layer are partly or fully enclosed by and in direct contact with an upper substrate layer and a lower substrate layer, wherein the upper substrate is between the topsheet and the layer of absorbent material or between the upper acquisition and distribution system and the layer of absorbent material, and the lower substrate layer is between the intermediate layer and the backsheet, and wherein the lower substrate layer of absorbent material is in direct contact with the intermediate layer.

16 . The absorbent article of claim 1 , wherein the layer of absorbent material is partly or fully enclosed by and in direct contact with an upper substrate layer and the intermediate layer, and wherein the upper substrate layer is between the topsheet and the layer of absorbent material or between the upper acquisition and distribution system and the layer of absorbent material.

17 . An absorbent article comprising:
a topsheet, a backsheet, an elastic waist feature disposed either in a front waist region or a back waist region, barrier leg cuffs, and a layer of absorbent material disposed between the topsheet and the backsheet, wherein the layer of absorbent material comprises superabsorbent polymer; and an intermediate layer comprising a nonwoven web, the intermediate layer being disposed between the layer of absorbent material and the backsheet; wherein the intermediate layer has a MD tensile/basis weight no greater than about 0.75 N/5 cm/g/m 2 as measured according to Tensile Strength Test, and a thickness/basis weight of between about 0.008 mm/g/m 2 and about 0.011 mm/g/m 2 , as measured according to the FTT Test.

18 . The absorbent article of claim 17 , wherein the barrier leg cuffs comprise an elastic member.

19 . The absorbent article of claim 18 , wherein the barrier leg cuffs comprise inner and outer leg cuffs.

20 . The absorbent article of claim 18 , wherein the nonwoven web comprises first thermoplastic fibers having a first melting temperature and second thermoplastic fibers having a second melting temperature, wherein a difference between the first melting temperature and the second melting temperature is at least about 40° C. and wherein the first thermoplastic fibers are carded fibers.

Assignees

• Procter & Gamble

Inventors

• Erdem Gueltekin
• Yuan Yi
• Li Jinyu
• Liu Hui
• Bianchi Ernesto Gabriel
• Surushe Abhishek Prakash
• KREISEL Sascha

Classifications

• A61F2013/530481

  having superabsorbent materials, i.e. highly absorbent polymer gel materials · CPC title

• A61F13/537

  characterised by a layer facilitating or inhibiting flow in one direction or plane, e.g. a wicking layer {(A61F13/538 takes precedence)} · CPC title

• A61F13/5116

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

• A61F13/15203 Primary

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

• D04H1/5418

  Mixed fibres, e.g. at least two chemically different fibres or fibre blends · CPC title