Three-dimensional shaped feminine pad with absorbent in the elasticized edges

• US 4,770,657 A
• Filed: 05/28/1986
• Issued: 09/13/1988
• Est. Priority Date: 05/28/1986
• Status: Expired due to Term

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Corporation
• Inventors: Ellis, Louise C., Basten, Julie T., Nowak, Russell L., Krueger, Allan J.
• Primary Examiner(s): Pellegrino, Stephen C.
• Assistant Examiner(s): Whelton, Denise
• Application Number:
  US06/868,927
• Time in Patent Office: 839 Days
• Field of Search: 604/358, 604/385 A, 604/385 R, 604/366, 604/370, 604/379
• US Class Current: 604/385.31
• CPC Class Codes: A61F 13/4752 the means being an upstanding barrier
• CPC Class Codes: A61F 2013/51409 being a film
• CPC Class Codes: A61F 2013/53445 from several sheets
• CPC Class Codes: A61F 2013/5395 with thermoplastic agent, i.e. softened by heat

Abstract

The invention is generally accomplished by providing a curved elongated absorbent pad for absorption of bodily excretions comprising a liquid-impermeable backing member, an upper reinforcing absorbent member, a reservoir absorbent member, and liquid-permeable body-side member. The upper reinforcing absorbent member is provided as a sheet below the permeable cover and extends substantially coextensively with the backing member at the edges of said pad. The lower absorbent reservoir member is shaped generally in a manner as to have an hourglass or dog-bone shape that provides a narrower middle portion of soft absorbent material. The middle portion of the lower absorbent, also in the preferred embodiment, is somewhat thicker than the reservoir absorbent portions at the ends of the pad. The pad is provided with upstanding side portions in the middle of each long edge in the area where the lower soft absorbent is narrower. The upper reinforcing absorbent sheet extends into the side edges. The preferred feminine pad further is curved so as to generally conform to the pudendum in the front and extend to about the area of the anus in the rear.

Claims

1. An elongated catamenial or mild incontinence pad curved to the body shape having relatively long sides and narrowed ends for absorption of bodily excretions comprising a liquid-impermeable backing member, a reservoir lower absorbent inner member, liquid-permeable body-side member and a layer of reinforcing absorbent means immediately beneath said body-side member functioning to prevent bunching and twisting when said pad is worn, wherein said lower reservoir absorbent has a narrow center portion shape, said backing member, said body-side member and said reinforcing absorbent extend beyond said reservoir absorbent and have side edges forming flaps in the areas where the narrow portion of the soft lower absorbent does not overlay said backing, said flaps being gathered thereby raising said flaps to form an absorbent wall on each side of the narrower portion of said reservoir absorbent wherein the gathering of said flaps to form said walls is by elastic contraction, said reinforcing absorbent extends into said flaps and covers said elastic, and said reinforcing layer has a Gurley stiffness of between about 1,000 and 1,300 mg.

2. The pad of claim 1 wherein said backing is adhered to said liner in the area of said liner adjacent said reservoir absorbent.

3. The pad of claim 1 wherein the distance between said walls is about the width of the widest part of said lower absorbent.

4. The pad of claim 1 wherein said absorbent in the center of said pad extends up to about the height of said walls and wherein said absorbent is thicker in the middle of said pad than at the ends.

5. The pad of claim 1 wherein said impermeable layer is a composite of a fibrous web and a polymer film.

6. The pad of claim 1 wherein said elastic is generally coextensive with the wall.

7. The pad of claim 2 wherein said liner and said impermeable backing extend beyond the area where they are adhered to form a soft fringe at the ends of said pad.

8. The pad of claim 1 wherein said lower absorbent has an hourglass shape.

9. The pad of claim 1 wherein said reinforcing absorbent has a dog-bone shape.

10. The pad of claim 1 comprising a feminine pad.

11. The pad of claim 1 comprising an incontinent pad.

12. The pad of claim 1 wherein the flap of said body-side member is generally coextensive with the flap of said backing member in the wall area.

13. The pad of claim 1 wherein the elasticized side edges are generally parallel.

14. The pad of claim 1 wherein said flaps extend upward from about the middle of vertical height of the thickest portion of said reservoir absorbent.

15. The pad of claim 1 wherein said elastic extends to the outer edge of said wall.

16. The pad of claim 1 wherein said reinforcing absorbent extends into said wall area and covers said elastic.

17. The pad of claim 1 wherein said liquid-impermeable backing member comprises a foam sheet.

18. The pad of claim 1 wherein said backing member, reinforcing absorbent, body-side member and said elastic are sealed together at discontinuous areas of said walls.

19. The pad of claim 18 wherein the seal areas comprise two discontinuous ultrasonic sealing lines.

20. The pad of claim 1 wherein said reinforcing absorbent has an hourglass shape.

28. The pad of claim 1 wherein said reinforcing absorbent is embossed to create channels for fluid distribution.

21. An elongated catamenial or mild incontinence pad curved to the body shape having relatively long gathered sides and narrowed ends for absorption of bodily excretions comprising a liquid-impermeable backing member, a reservoir lower absorbent inner member, liquid-permeable body-side member and a layer of reinforcing absorbent means functioning to prevent bunching and twisting when said pad is worn immediately beneath said body-side member, wherein said lower reservoir absorbent has a narrow portion shape, said backing member, said body-side member and said reinforcing absorbent extend beyond said reservoir absorbent and have side edges forming flaps in the areas where the narrower portion of the soft lower absorbent does not overlay said backing, said flaps being gathered thereby raising said flaps to form an absorbent wall wherein the edges are gathered by heat shrinkage of a generally inelastic polymer film to form generally inelastic edges.

22. The pad of claim 21 wherein said absorbent in the center of said pad extends up to about the height of said walls.

23. The pad of claim 21 wherein said inelastic film is generally coextensive with the wall.

24. The pad of claim 21 comprising a feminine pad.

25. The pad of claim 21 comprising an incontinent pad.

26. The pad of claim 21 wherein the flap of said body-side member is generally coextensive with the flap of said backing member in the wall area and wherein said inelastic film is generally coextensive with said backing member in said wall area.

27. The pad of claim 21 wherein said reinforcing absorbent layer has a Gurley stiffness of between about 1,000 and about 1,300 mg.

29. The pad of claim 21 wherein said reinforcing absorbent is embossed to create channels for fluid distribution.