Absorbent products having improved packaging efficiency

Patent metadata

Field	Value
Publication number	US-10123916-B2
Application number	US-201514865502-A
Country	US
Kind code	B2
Filing date	Sep 25, 2015
Priority date	Sep 29, 2009
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

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; a substantially cellulose free 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 substantially cellulose free 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 substantially cellulose free absorbent core comprises a nonwoven substrate having first and second surfaces, an absorbent particulate polymer material disposed on the second surface of the nonwoven substrate and a thermoplastic composition applied to the absorbent particulate 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 substantially cellulose free absorbent core comprises an absorbent material and the nonwoven substrate;
wherein the absorbent material comprises less than 10% by weight cellulosic fibers; and
wherein the nonwoven substrate comprises a plurality of areas that are in direct contact with the thermoplastic composition; and
wherein the thermoplastic composition has a softening point in the range between 50° C. and 300° C.

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 nonwoven substrate comprises a plurality of areas free from direct contact with the absorbent material.

4. The absorbent product of claim 3 , 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 disposable absorbent articles exhibit a longitudinal bending stiffness of from 285 N/m to less than 355 N/m upon removal from the package.

7. The absorbent product of claim 3 , wherein land areas are disposed adjacent to junction areas, and wherein the land areas comprise the absorbent material.

8. The absorbent product of claim 1 , wherein the disposable absorbent articles further comprise an acquisition system.

9. The absorbent product of claim 1 , wherein the backsheet has a thickness of from 0.012 mm to 0.051 mm.

10. The absorbent product of claim 1 , wherein the disposable absorbent articles comprise an acquisition system, wherein the acquisition system comprises the absorbent core in contact with an acquisition layer.

11. The absorbent product of claim 10 , wherein the acquisition layer has a maximum uptake of 10 g/g.

12. The absorbent product of claim 11 , wherein the acquisition layer has a minimum median desorption pressure (MDP) of greater than 5 cm.

13. The absorbent product of claim 12 , wherein the acquisition layer has a median desorption pressure (MDP) of less than 20.5 cm.

14. The absorbent product of claim 13 , wherein the thermoplastic composition is applied to the absorbent particulate polymer material forming a fibrous network over the absorbent particulate polymer material.

15. The absorbent product of claim 1 , wherein a first portion of the absorbent particulate polymer material is attached to a second nonwoven substrate.

16. The absorbent product of claim 15 , wherein the absorbent particulate polymer material of the nonwoven substrate and of the second nonwoven substrate is combined to form a substantially continuous layer of absorbent particulate polymer material.

17. The absorbent product of claim 1 , wherein the absorbent core comprises an auxiliary adhesive in the form of a discontinuous field.

18. The absorbent product of claim 1 , wherein the thermoplastic composition comprise at least one thermoplastic polymer having a molecular weight of more than 10,000.

19. The absorbent product of claim 18 , wherein the thermoplastic polymer has a glass transition temperature (Tg) in the range between −6° C. and 16° C.

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

Assignees

• Procter & Gamble

Inventors

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

Classifications

• A61F13/55105

  packaging of diapers · CPC title

• A61F13/53 Primary

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

• A61F13/55115

  characterized by the features before use, e.g. how are the diapers folded or arranged in a package · CPC title

• A61F13/5511

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

• A61F2013/15365

  Dimensions · CPC title