Absorbent products having improved packaging efficiency

Patent metadata

Field	Value
Publication number	US-11730641-B2
Application number	US-202117481633-A
Country	US
Kind code	B2
Filing date	Sep 22, 2021
Priority date	Sep 29, 2009
Publication date	Aug 22, 2023
Grant date	Aug 22, 2023

Abstract

A package comprising an interior space and an exterior surface may have a plurality of disposable absorbent articles disposed within the interior space of the package. Each of the disposable absorbent articles may have a topsheet; a backsheet; an absorbent core located between the topsheet and the backsheet. The absorbent products may exhibit an In-Bag Stack Height of less about 80 mm as measured according to an In-Bag Stack Height Test.

First claim

What is claimed is:

1. An absorbent product comprising:
a package having height, width and depth dimensions, an interior space and an exterior surface, the package comprising a film;
a plurality of disposable absorbent articles, which are bi-folded and arranged to form a stack of disposable absorbent articles, wherein the stack of disposable absorbent articles is compressed along a compression axis and disposed within the interior space of the package such that the compression axis of the stack of disposable absorbent articles is oriented substantially along the width dimension of the package, each of the folded disposable absorbent articles comprising a topsheet, a liquid impervious backsheet, a absorbent core located between the topsheet and the backsheet, a first waist region, a second waist region, and a crotch region extending longitudinally between the first and second waist regions, and a fastening member-adapted to releasably connect with a landing zone;
wherein the backsheet comprises a thermoplastic film having an inner facing surface and an outer facing surface;
wherein the absorbent core comprises a nonwoven substrate having first and second surfaces, absorbent material comprises an absorbent particulate polymer material and cellulose disposed on the second surface of the nonwoven substrate and a thermoplastic composition applied to the absorbent material, wherein the first surface of the nonwoven substrate faces the inner facing surface of the thermoplastic film;
wherein more than 60% of the absorbent particulate polymer is disposed in a front half of each of the absorbent articles;
wherein the absorbent product exhibits an In-Bag Stack Height from 72 mm to 80 mm wherein the In-Bag Stack Height is the width of the package divided by the number of the disposable articles per stack and then multiplied by ten;
wherein the nonwoven substrate comprises at least one junction area in direct contact with the thermoplastic composition;
wherein the at least one junction area comprises little or no absorbent material; and
wherein a layer is bonded to the nonwoven substrate at the at least one junction area; and
wherein at least a portion of one of the at least one junction area comprises a small amount of absorbent particulate polymer.

2. The absorbent product of claim 1 , wherein the absorbent product exhibits an In-Bag Stack Height of from 74 mm to 78 mm.

3. The absorbent product of claim 1 , wherein the layer is a cover layer.

4. The absorbent product of claim 1 , wherein the absorbent particulate polymer material is present in the absorbent core in an amount greater than 80% by weight of the absorbent core.

5. The absorbent product of claim 1 , wherein the disposable absorbent articles exhibit a longitudinal bending stiffness of less than 355 N/m upon removal from the package.

6. The absorbent product of claim 1 , wherein the absorbent material comprises less than 10% by weight cellulosic fibers.

7. The absorbent product of claim 1 , wherein at least one land area is disposed adjacent to the at least one junction area, and wherein the at least one land area comprise the absorbent material.

8. The absorbent product of claim 7 , wherein at least one land area is disposed between two junction areas.

9. The absorbent product of claim 7 , wherein a width of at least one of the land areas is greater than a width of at least one of the junction areas.

10. The absorbent product of claim 7 , wherein at least a portion of the at least one land area has a shape selected from the group consisting of circular, oval, square, rectangular, triangular, and polygonal.

11. The absorbent product of claim 7 , wherein the land areas are defined by clusters of absorbent material.

12. The absorbent product of claim 1 , wherein the layer is a nonwoven.

13. The absorbent product of claim 1 , wherein at least a portion of one of the junction areas is free from absorbent particulate polymer.

14. The absorbent product of claim 1 , wherein at least one of the at least one junction area is free from absorbent material.

15. The absorbent product of claim 1 , wherein the thermoplastic composition forms a fibrous network over the absorbent particulate polymer material.

16. The absorbent product of claim 1 , wherein at least a portion of the at least one junction area has a shape selected from the group consisting of circular, oval, square, rectangular, triangular, and polygonal.

17. The absorbent product of claim 1 , wherein the absorbent core comprises an auxiliary adhesive.

18. The absorbent product of claim 1 , wherein the thermoplastic composition has a softening point in the range between 50° C. and 300° C.

Assignees

• Procter & Gamble

Inventors

• Weisman Paul Thomas
• Duval Dean Larry
• Beruda Holger
• Dziezok Peter
• Krause Axel
• Schmidt Mattias
• Stelzig Lutz

Classifications

• A61F13/53 Primary

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

• A61F13/5148

  having an impervious inner layer and a cloth-like outer layer · CPC title

• A61F13/51458

  being air-pervious or breathable · CPC title

• A61F13/5511

  characterized by the container (A61F15/00 takes precedence) · CPC title

• A61F13/5376

  characterised by the performance of the layer, e.g. acquisition rate, distribution time, transfer time · CPC title