Absorbent article with improved garment-like character

• US 8,454,572 B2
• Filed: 02/25/2011
• Issued: 06/04/2013
• Est. Priority Date: 02/25/2010
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Roe, Donald Carroll, Kline, Mark James
• Primary Examiner(s): Hand, Melanie
• Assistant Examiner(s): CRAIG, PAULA L
• Application Number:
  US13/034,795
• Publication Number:
  US 20110208141A1
• Time in Patent Office: 830 Days
• Field of Search: 604389-391
• US Class Current: 604/391
• CPC Class Codes: A61F 13/49004 with fastening means
• CPC Class Codes: A61F 13/49014 the elastic means is located at the side panels
• CPC Class Codes: A61F 13/5633 open type diaper
• CPC Class Codes: A61F 13/565 pants type diaper
• CPC Class Codes: A61F 13/62 Mechanical fastening means, A61F13/5611, A61F13/5616, A61F13/581, A61F13/66 take precedence; Fabric strip fastener elements, e.g. hook and loop
• CPC Class Codes: A61F 13/622 Fabric strip fastener elements, e.g. hook and loop
• CPC Class Codes: A61F 2013/530518 the maximum being at the crotch
• CPC Class Codes: A61F 2013/530554 and being fixed to a web
• CPC Class Codes: A61F 2013/530963 being maximum at the crotch

Abstract

A disposable absorbent article may include a chassis, an absorbent core, a pair of elastically elongatable ears and a pair of fastening tabs. The elastically elongatable ears and the fastening tabs have a transverse axis. The ears are connected to the chassis such that the transverse axis of the fastening tabs is located in specific portions of the article. The absorbent core is free of cellulosic fibers.

Claims

1. A disposable absorbent article comprising:

a) a chassis having a longitudinal axis, a transverse axis, a front region with a front edge, a rear region with a back edge, a crotch region between the front region and the rear region, and a pair of opposing longitudinal edges, said chassis comprising an absorbent core having front and back edges wherein said absorbent core contains less than 10% by weight of the absorbent core of cellulosic fibers;

b) left and right elastically elongatable ears that are discrete from said chassis, each of said left and right ears having upper and lower edges and a transverse axis, each of said upper and lower edges having proximal and distal ends, said left and right ears defining a back section of said absorbent article that is present between said back edge of said chassis and a line connecting the respective lower ends of the lower edge of said left and right elastically elongatable ears wherein said left ear is a mirror image of said right ear relative to the longitudinal axis of said chassis; and

c) left and right fastening tabs respectively connected to a distal portion of said left and right elastically elongatable ears, each of said left and right fastening tabs having upper and lower edges and a transverse axis, each of said upper and lower edges of said fastening tabs having a proximal end wherein said left fastening tab is a mirror image of said right fastening tab relative to the longitudinal axis of said chassis, wherein said left and right elastically elongatable ears are connected to said chassis such that the transverse axis of said left and right fastening tabs is located between said back edge of the chassis and said back edge of said absorbent core, wherein the upper and lower edges of said fastening tabs are asymmetric relative to the transverse axis of the fastening tabs and wherein the transverse axis of the fastening tab overlaps substantially with the transverse axis of the elongatable ear.

2. The disposable absorbent article of claim 1 wherein each of said left and right fastening tabs comprises a fastening material including a plurality of hooks.

3. The disposable absorbent article of claim 1 wherein the elastically elongatable ears have a transverse axis that is separated from the back edge of the absorbent core by a distance of less than 50 mm.

4. The disposable absorbent article of claim 1 wherein the back edge of the chassis and the back edge of the absorbent core are separated by a longitudinal distance of less than 100 mm.

5. The disposable absorbent article of claim 1 wherein said absorbent core contains less than 5% by weight of the absorbent core of cellulosic fibers.

6. The disposable absorbent article of claim 5 wherein said absorbent core contains less than 1% by weight of the absorbent core of cellulosic fibers.

7. The disposable absorbent article of claim 5 wherein said absorbent core comprises a first layer of a nonwoven fibrous material having upper and lower surfaces, a layer of a thermoplastic adhesive material and an absorbent material between the upper surface of the first layer of the nonwoven fibrous material and the layer of thermoplastic adhesive material.

8. The disposable absorbent article of claim 7 wherein the upper surface of the first layer of nonwoven material comprises a plurality of regions that are each in direct facial relationship with absorbent material.

9. The disposable absorbent article of claim 8 wherein said upper surface of said first layer of nonwoven fibrous material comprises a plurality of regions that are each in facial relationship with absorbent material that is present in an amount of less than 100 g/m².

10. The disposable absorbent article of claim 9 wherein said absorbent core further comprises a second layer of a nonwoven fibrous material having upper and lower surfaces such that said absorbent material and said layer of thermoplastic adhesive material are between said upper surface of said first layer of nonwoven fibrous material and said second layer of said nonwoven fibrous material.

11. The disposable absorbent article of claim 10 wherein the lower surface of the second layer of nonwoven material comprises a plurality of regions that are each in direct facial relationship with absorbent material.

12. The disposable absorbent article of claim 11 wherein said lower surface of said second layer of nonwoven fibrous material comprises a plurality of regions that are each in facial relationship with absorbent material that is present in an amount of less than 100 g/m².

13. The disposable absorbent article of claim 12 wherein at least some of the regions of said upper surface of the first layer of nonwoven fibrous material that are in direct facial relationship with an absorbent material are in direct facial relationship with at least corresponding regions of the lower surface of the second layer of nonwoven fibrous material that are in facial relationship with absorbent material that is present in an amount of less than 100 g/m².

14. The disposable absorbent article of claim 10 wherein said first layer of nonwoven fibrous material and said second layer of nonwoven fibrous material are made of different nonwoven materials.

15. The disposable absorbent article of claim 10 wherein said first layer of nonwoven fibrous material and said second layer of nonwoven fibrous material each have a surface energy and wherein the surface energy of said first layer is different from the surface energy of said second layer.

16. The disposable absorbent article of claim 15 wherein said second layer of nonwoven fibrous material comprises a surfactant.

17. The disposable absorbent article of claim 16 wherein said article comprises a middle section having an average caliper that is greater than the average caliper of said back section.