Disposable absorbent article

• US 20030114816A1
• Filed: 12/14/2001
• Published: 06/19/2003
• Est. Priority Date: 12/14/2001
• Status: Active Grant

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Malone, Marsha M., Underhill, Richard L.
• Granted Patent: US 6,726,668 B2
• Time in Patent Office: Days
• US Class Current: 604/378
• CPC Class Codes: A61F 13/42 with wetness indicator or alarm
• CPC Class Codes: A61F 13/49473 the edge leakage prevention means having a continuous closed form, e.g. circle, ellipse, rectangle
• CPC Class Codes: A61F 13/53743 characterised by the position of the layer relative to the other layers
• CPC Class Codes: A61F 2013/15365 Dimensions
• CPC Class Codes: A61F 2013/53782 with holes

Abstract

A disposable absorbent article for personal wear has a generally liquid permeable liner adapted for contiguity with the wearer'"'"'s skin, and an outer cover. An absorbent body lies between the liner and the outer cover for absorbing liquid body waste. A surge layer lies between the liner and the absorbent body for receiving liquid body waste penetrating the liner and for subsequently releasing liquid body waste to the absorbent body. The surge layer has an inner surface, an outer surface generally facing the absorbent body and an opening extending from its inner surface toward its outer surface. A flow control layer between the liner and the absorbent body at least retards the flow of liquid body waste from the surge layer opening to the absorbent body to facilitate a prolonged feeling of wetness against the wearer'"'"'s skin upon the release of liquid body waste into said article.

Claims

1. A disposable absorbent article for personal wear, said disposable absorbent article comprising:

a generally liquid permeable liner adapted for contiguity with the wearer'"'"'s skin;

an outer cover;

an absorbent body between the liner and the outer cover for absorbing liquid body waste;

a surge layer between the liner and the absorbent body for receiving liquid body waste penetrating the liner and for subsequently releasing said liquid body waste to the absorbent body, the surge layer having an inner surface generally facing the liner and an outer surface generally facing the absorbent body, said surge layer having an opening therein extending from the inner surface of said surge layer toward its outer surface; and

a flow control layer between the liner and the absorbent body for at least retarding the release of liquid body waste from the surge layer opening to the absorbent body.

2. A disposable absorbent article as set forth in claim 1 wherein the flow control layer is permeable.

3. A disposable absorbent article as set forth in claim 1 wherein the flow control layer is impermeable.

4. A disposable absorbent article as set forth in claim 3 wherein the flow control layer is constructed of a film.

5. A disposable absorbent article as set forth in claim 4 wherein the flow control layer is constructed of a polyethylene film.

6. A disposable absorbent article as set forth in claim 3 wherein the flow control layer is textured.

7. A disposable absorbent article as set forth in claim 1 wherein the surge layer opening has a length of less than or equal to about 5 inches and a width of less than or equal to about 2 inches at the inner surface of the surge layer.

8. A disposable absorbent article as set forth in claim 1 wherein the surge layer opening has a length of about 2.5 inches and a width of about 1.5 inches at the inner surface of the surge layer.

9. A disposable absorbent article as set forth in claim 1 wherein the surge layer opening extends entirely through the surge layer from its inner surface to its outer surface.

10. A disposable absorbent article as set forth in claim 9 wherein the surge layer opening has a generally uniform cross-section as the opening extends from the inner surface of the surge layer toward its outer surface.

11. A disposable absorbent article as set forth in claim 9 wherein the surge layer comprises a pair of surge layer elements spaced laterally from each other along the length of the surge layer to define said surge layer opening.

12. A disposable absorbent article as set forth in claim 11 wherein the surge layer elements are spaced laterally from each other by a distance of about 0.5 inches to about 1.5 inches.

13. A disposable absorbent article as set forth in claim 1 wherein the flow control layer is larger than the surge layer opening and is arranged relative thereto to extend outward beyond the periphery of said opening.

14. A disposable absorbent article as set forth in claim 13 wherein the surge layer opening is generally ovate.

15. A disposable absorbent article as set forth in claim 14 wherein the surge layer opening has a length of about 2.5 inches and a width of about 1.5 inches, the flow control layer having a length of about 3.0 inches and a width of about 2.0 inches and being arranged relative to the surge layer to extend at least about 0.25 inches outward beyond the periphery of said surge layer opening.

16. A disposable absorbent article as set forth in claim 1 wherein the flow control layer is disposed between the absorbent body and the outer surface of the surge layer and generally underlies the surge layer opening.

17. Toilet training pants comprising:

an anterior region, a posterior region and a crotch region disposed longitudinally therebetween, said anterior region, posterior region and crotch region being integrally formed and configured to define a central waist opening and a pair of leg openings of said pants, the crotch region extending generally laterally between said leg openings;

a generally liquid permeable liner extending from the anterior region through the crotch region to the posterior region of said pants and being adapted for contiguity with the wearer'"'"'s skin;

an outer cover;

an absorbent body between the liner and the outer cover for absorbing liquid body waste;

a surge layer between the liner and the absorbent body for receiving liquid body waste penetrating the liner and for subsequently releasing said liquid body waste to the absorbent body, the surge layer having an inner surface generally facing the liner and an outer surface generally facing the absorbent body, said surge layer having an opening therein extending from the inner surface of said surge layer toward its outer surface; and

a flow control layer between the liner and the absorbent body for at least retarding the flow of liquid body waste from the surge layer opening to the absorbent body.

18. Toilet training pants as set forth in claim 17 wherein the flow control layer is disposed between the absorbent body and the outer surface of the surge layer and generally underlies the surge layer opening.

19. Toilet training pants as set forth in claim 17 wherein the surge layer opening extends entirely through the surge layer from its inner surface to its outer surface.

20. Toilet training pants as set forth in claim 17 wherein the surge layer opening has a generally uniform cross-section as the opening extends from the inner surface of the surge layer toward its outer surface.

21. Toilet training pants as set forth in claim 17 wherein the surge layer opening is generally in the crotch region of the training pants.

22. A method of manufacturing toilet training pants comprising:

forming an opening in a surge layer to extend from an inner surface of said surge layer toward an outer surface thereof;

positioning a flow control layer adjacent the surge layer generally at said surge layer opening for at least retarding the flow of liquid body waste from said opening;

positioning the surge layer and the flow control layer between a liner and an absorbent body adapted for absorbing liquid body waste, the liner being adapted for contiguity with the wearer'"'"'s skin and being generally liquid permeable;

positioning the surge layer, the flow control layer and the absorbent body generally between said liner and said outer cover, said liner and outer cover together defining an anterior region, a crotch region and a posterior region of said training pants; and

configuring the training pants such that the anterior region, crotch region and posterior region generally form a central waist opening and a pair of leg openings of the training pants with the crotch region being disposed between the leg openings.

23. A method as set forth in claim 22 further comprising positioning the flow control layer adjacent to an outer surface of the surge layer generally at the surge layer opening such that said flow control layer lies between said surge layer and said absorbent body with said flow control layer generally underlying said surge layer opening.

24. A method as set forth in claim 23 further comprising positioning the flow control layer adjacent said outer surface of the surge layer such that said flow control layer extends outward beyond the periphery of the surge layer opening.

25. A method as set forth in claim 22 wherein said step of forming an opening in the surge layer comprises laterally spacing a pair of surge layer elements along the length of the surge layer to define said surge layer opening.