Absorbent article with profiled acquisition-distribution system

Patent metadata

Field	Value
Publication number	US-10786403-B2
Application number	US-201715486592-A
Country	US
Kind code	B2
Filing date	Apr 13, 2017
Priority date	Dec 10, 2012
Publication date	Sep 29, 2020
Grant date	Sep 29, 2020

Abstract

An absorbent article (20) having an absorbent core comprising at least about 80% of superabsorbent polymers (SAP) by weight of its absorbent material. An acquisition-distribution system (ADS) (50) is at least partially disposed between the absorbent core and the topsheet. The ADS extends in the longitudinal direction of the absorbent article at least from a point A1 disposed at a distance D from the front edge to a point A2 disposed at a distance D from the back edge of the article, D being equal to 32% of the length L of the article. The ADS has a basis weight which may be at least 20% lower at the point A2 than at the point A1.

First claim

What is claimed is:

1. An absorbent article comprising a front end, a back end and a longitudinal axis extending in a longitudinal direction of the article, the article having a length L as measured along the longitudinal axis between the front end and the back end, the absorbent article comprising:
a liquid permeable topsheet;
a liquid impermeable backsheet;
an absorbent core comprising a core wrap enclosing an absorbent material; and an acquisition-distribution system at least partially disposed between the absorbent core and the topsheet and comprising two or more layers; wherein the acquisition-distribution system extends in the longitudinal direction of the absorbent article at least from a point A 1 disposed at a distance D from the front end to a point A 2 disposed at the distance D from the back end of the article, wherein the distance D is equal to about 32% of the length L of the article, wherein the acquisition-distribution system has a basis weight which is lower at the point A 2 than at the point A 1 and wherein the acquisition-distribution system comprises an acquisition layer and a distribution layer and does not comprise superabsorbent polymer, wherein the acquisition layer is disposed closer to the topsheet than the distribution layer and the distribution layer is profiled along the longitudinal axis such that the basis weight of the distribution layer at the point A 2 is at least about 20% lower than at the point A 1 , and
wherein the acquisition-distribution system comprises a first zone Z 1 disposed towards the front end and encompassing point AL, and a second zone Z 2 disposed towards the back end and encompassing point A 2 ;
wherein the first zone Z 1 comprises a homogenous basis weight and the second zone Z 2 comprises a gradually, linearly decreasing basis weight.

2. The absorbent article of claim 1 , wherein the caliper of the absorbent article at the point A 2 is at least about 20% lower than the caliper of the absorbent article at the point A 1 , as measured according to the Caliper Test as disclosed by the instant specification.

3. The absorbent article of claim 1 , wherein the first zone Z 1 comprises a larger surface area than the second zone Z 2 .

4. The absorbent article of claim 1 , wherein the acquisition layer comprises a latex-bonded nonwoven.

5. The absorbent article of claim 1 , wherein the periphery of the area of the absorbent material within the core wrap defines an absorbent material deposition area, and wherein the acquisition-distribution system does not extend beyond any edges of the absorbent material deposition area.

6. The absorbent article of claim 1 , wherein the absorbent material of the absorbent core comprises at least 80% of superabsorbent polymers by total weight of the absorbent material.

7. The absorbent article of claim 1 , wherein the absorbent material of the absorbent core comprises less than 10% of natural or synthetic fibers by total weight of the absorbent material.

8. The absorbent article of claim 1 , wherein the absorbent core comprises at least one channel substantially free of superabsorbent polymers.

Assignees

• Procter & Gamble

Inventors

• Bianchi Ernesto Gabriel
• Schneider Manuela Ines
• Baquer Molas Gemma
• Le Nguyen Huynh-Trang

Classifications

• A61F13/534

  having an inhomogeneous composition through the thickness of the pad (A61F13/538, A61F13/539 take precedence) · CPC title

• A61F13/512

  characterised by its apertures, e.g. perforations · CPC title

• A61F13/51113

  comprising an additive, e.g. lotion or odour control (A61F13/51108 takes precedence) · CPC title

• A61F13/1565

  by depositing continuous layers of fibrous material between webs, e.g. wrapping layers of fibrous material · CPC title

• A61F13/15642 Primary

  by depositing continuous layers or pads of fibrous material on single sheets or webs · CPC title