Better Fitting Disposable Absorbent Article With Substantially Continuously Distributed Absorbent Particulate Polymer Material

• US 20080312619A1
• Filed: 06/18/2008
• Published: 12/18/2008
• Est. Priority Date: 06/18/2007
• Status: Abandoned Application

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Dziezok, Peter, Schmidt, Mattias, Beruda, Holger, Ashton, Gregory, Krause, Axel, Hundorf, Harald Hermann, Blessing, Horst, Stelzig, Lutz
• Application Number:
  US12/141,128
• Publication Number:
  US 20080312619A1
• Time in Patent Office: Days
• US Class Current: 604/366
• CPC Class Codes: A61F 13/49014 the elastic means is located at the side panels
• CPC Class Codes: A61F 13/5323 having absorbent material located in discrete regions, e.g. pockets
• CPC Class Codes: A61F 13/536 having discontinuous areas of compression
• CPC Class Codes: A61F 2013/530547 positioned in a separate layer or layers

Abstract

A disposable absorbent article includes an absorbent core that is substantially cellulose free and a chassis that includes a topsheet and a backsheet, with the absorbent core located between the topsheet and the backsheet. The chassis may include a pair of side panels joined with the chassis, the side panels extending laterally outwardly beyond the longitudinal edges, each side panel having at least one zone extensible in a direction having a vector component in the lateral direction.

Claims

1. A disposable absorbent article comprising:

a chassis including a topsheet and a backsheet, the chassis having end edges and longitudinal edges;

an absorbent core which comprises an absorbent particulate polymer material and which is substantially cellulose free, the absorbent core being located between the topsheet and the backsheet; and

a pair of side panels joined with the chassis, the side panels extending laterally outwardly beyond the longitudinal edges, each side panel having at least one zone elastically extensible in a direction having a vector component in the lateral direction,

wherein each side panel has a leg zone which is elastically extensible in a direction having a vector component in the lateral direction, a waist zone which is elastically extensible in a direction having a vector component in the lateral direction, and a separation zone separating the leg zone and the waist zone.

2. The disposable absorbent article of claim 1, wherein the separation zone is non-elastically extensible.

3. The disposable absorbent article of claim 1, wherein each side panel further comprises a grasping zone disposed laterally outwardly from the waist zone.

4. The disposable absorbent article of claim 1, wherein the leg zone and the waist zone have an extension force differential.

5. The disposable absorbent article of claim 1, wherein the leg zone of each side panel has an extension force between about 2 g/cm and about 10 g/cm at 50% extension.

6. The disposable absorbent article of claim 5, wherein the waist zone of each side panel has an extension force between about 10 g/cm and about 30 g/cm at 50% extension.

7. The disposable absorbent article of claim 1, wherein absorbent core comprises first and second absorbent layers, the first absorbent layer including a first substrate and the second absorbent layer including a second substrate, the first and second absorbent layers further including the absorbent particulate polymer material deposited on said first and second substrates and thermoplastic adhesive material covering the absorbent particulate polymer material on the respective first and second substrates, said first and second absorbent layers combined together such that at least a portion of said thermoplastic adhesive material of said first absorbent layer contacts at least a portion of the thermoplastic adhesive material of said second absorbent layer, the absorbent particulate polymer material is disposed between the first and second substrates in an absorbent particulate polymer material area, and the absorbent particulate polymer material is substantially continuously distributed across the absorbent particulate polymer material area.

8. The disposable absorbent article of claim 7, wherein the absorbent particulate polymer material is deposited on the first and second substrates in respective patterns of land areas and junction areas between the land areas such that the absorbent particulate polymer material is discontinuously distributed on the first and second substrates;

and the first and second absorbent layers are combined together such the respective patterns of absorbent particulate polymer material are offset from one another.

9. The disposable absorbent article of claim 8, wherein the respective patterns are substantially the same.

10. The disposable absorbent article of claim 7, wherein the absorbent particulate polymer material area extends substantially entirely across the absorbent core.

11. The disposable absorbent article of claim 7, wherein the absorbent core consists essentially of the first and second substrates, the absorbent particulate polymer material, and the thermoplastic adhesive material.

12. The disposable absorbent article of claim 7, wherein the absorbent core has a front end and a rear end and a longitudinal axis extending from the rear end to the front end and a plurality of absorbent zones, each of the plurality of absorbent zones having absorbent particulate polymer material present in differing amounts and a gradual transition in amount of absorbent particulate polymer material form one of the plurality of absorbent zones to another.

13. The disposable absorbent article of claim 8, wherein the absorbent core has a front end and a rear end and a longitudinal axis extending from the rear end to the front end and the land areas of the respective patterns are arranged in a grid which is positioned at an angle from about 5 to about 85 degrees from the longitudinal axis of the absorbent core.

14. The disposable absorbent article of claim 8, wherein the absorbent core has a length extending from a rear end to a front end, and a width extending from a first edge to a second edge and perpendicularly to the length, and the respective patterns are offset from one another in both a direction parallel to the length and a direction parallel to the width.

15. The disposable absorbent article of claim 1, wherein each side panel is constructed of a mechanically stretched laminate.

16. The disposable absorbent article of claim 1, further comprising an acquisition system, which is located between the absorbent core and the topsheet.

17. The disposable absorbent article of claim 1, wherein the absorbent article is a diaper and the pair of side panels comprise a re-closable fastening system for securing the diaper to a wearer.

18. The disposable absorbent article of claim 1, wherein the absorbent article is a pant-type diaper and the pair of side panels is joined to each other to form a pant.