Absorbent article with profiled acquisition-distribution system

Patent metadata

Field	Value
Publication number	US-10786402-B2
Application number	US-201715466970-A
Country	US
Kind code	B2
Filing date	Mar 23, 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. A method for making an absorbent article, the method comprising the steps of:
forming an absorbent core by enclosing an absorbent material comprising at least about 80% of superabsorbent polymers (SAP) by weight of the absorbent material within a core wrap;
providing an acquisition-distribution system having a basis weight which is lower at a point A2 than at a point A1;
providing a topsheet and a backsheet;
combining the absorbent core, the acquisition-distribution system, the topsheet and the backsheet such that the point A1 is disposed at a distance D from the front edge of the article and such that the point A2 is disposed at the distance D from the back edge of the article, wherein the distance D is equal to 32% of the length L of the article and
wherein the acquisition-distribution system comprises an acquisition layer in fibrous form and a distribution layer comprising a nonwoven, wherein the distribution layer is deposited in fibrous form on the acquisition layer, and wherein the distribution layer is deposited at a higher basis weight at the point A1 than the point A2.

2. The method of claim 1 , wherein the basis weight of the acquisition-distribution system is at least about 20% lower at the point A2 than at the point A1.

3. The method of claim 1 , wherein a basis weight of the acquisition layer is equal at point A1 and point A2.

4. The method of claim 1 , further comprising the step of profiling the acquisition-distribution system in the transversal direction.

5. A method for making an absorbent article, the method comprising the steps of:
forming an absorbent core by enclosing an absorbent material comprising at least about 80% of superabsorbent polymers (SAP) by weight of the absorbent material within a core wrap;
providing an acquisition-distribution system having a basis weight which is lower at a point A2 than at a point A1;
providing a topsheet and a backsheet;
combining the absorbent core, the acquisition-distribution system, the topsheet and the backsheet such that the point A1 is disposed at a distance D from the front edge of the article and such that the point A2 is disposed at the distance D from the back edge of the article, wherein the distance D is equal to 32% of the length L of the article; and
wherein the acquisition-distribution system comprises an acquisition layer and a distribution layer, wherein the distribution layer is deposited in fibrous form on the acquisition layer, and wherein the distribution layer is deposited at a higher basis weight at the point A1 than the point A2.

6. The method of claim 5 , wherein the acquisition layer comprises a nonwoven.

7. The method of claim 5 , further comprising the step of profiling the acquisition-distribution system in the transversal direction.

8. The method of claim 5 , wherein a basis weight of the acquisition layer is equal at point A1 and point A2.

9. The method of claim 5 , wherein the distribution layer comprises chemically cross-linked cellulosic fibers.

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