Three-dimensional sanitary napkin having absorbent material contoured on the baffle side

• US 4,639,254 A
• Filed: 10/24/1985
• Issued: 01/27/1987
• Est. Priority Date: 10/24/1985
• Status: Expired due to Term

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Corporation
• Inventors: Jezzi, Arrigo D., Oakley, Barbara, LeGault, Robert H., Milner, James D., Franke, Paul G.
• Primary Examiner(s): Yasko, John D.
• Application Number:
  US06/790,702
• Time in Patent Office: 460 Days
• Field of Search: 604/385.1, 604/386, 604/387, 604/358
• US Class Current: 604/385.21
• CPC Class Codes: A61F 13/47218 with a raised crotch region, e.g. hump

Abstract

A three-dimensionally hourglass-shaped sanitary napkin with a cellulose fluff insert for absorption that is outwardly bulging on the baffle side to create a thicker region near the center of the sanitary napkin. The baffle or fluid-impervious layer wraps around the absorbent cellulose fluff insert to form a well thereby maintaining fluid within its borders to afford increased protection from fluid leakage.

Claims

1. A three-dimensional hourglass-shaped sanitary napkin comprising a fluid permeable cover with a body contacting surface, an absorbent material adjacent the fluid permeable cover and a fluid impermeable baffle adjacent the alternate side of the absorbent material and having a garment facing surface, said sanitary napkin being substantially hourglass-shaped, comprising (a) two end lobe regions and (b) a middle region, said absorbent material in said middle region being outwardly bulging in said middle region by a greater amount than the absorbent in the end region on the alternate absorbent side adjacent the baffle and wherein said middle region comprises a greater amount of absorbent than said lobe regions.

2. The sanitary napkin of claim 1 wherein said outward bulge absorbent region is stepped down from said middle region to said lobe regions.

3. The sanitary napkin of claim 2 wherein the thickness of said absorbent material located in said middle region comprises about 1.5 to about 5 times the thickness of said absorbent material located in said lobe regions.

4. The sanitary napkin of claim 3 wherein said middle region absorbent thickness comprises about 1.75 to about 3.0 times the thickness of said lobe region absorbent.

5. The sanitary napkin of claim 1 wherein said middle region absorbent comprises a density greater than the density of the absorbent in the lobe regions of said napkin.

6. The sanitary napkin of claim 1 wherein said absorbent material comprises a superabsorbent composition.

7. The sanitary napkin of claim 1 wherein said absorbent material comprises cellulosic material.

8. A sanitary napkin of claim 1 wherein said baffle comprises ethylene methyl acrylate.

9. A sanitary napkin of claim 1 wherein a discreet adhesive member is attached to the garment facing surface of the baffle.

11. The sanitary napkin of claim 1 wherein said absorbent is wood fluff and said greater amount of absorbent in said middle region comprises thicker fluff than the fluff in and said end lobe portions.

14. The napkin of claim 1 wherein said baffle in said middle region forms a well in the outwardly bulging portin.

15. The napkin of claim 1 wherein the bodyside surface of said pad is generally planar.

10. A sanitary napkin of claim 9wherein said discreet adhesive member is in the form of longitudinal strips.

12. A sanitary napkin comprising a fluid-permeable bodyside cover, an absorbent material adjacent said fluid-permeable cover and a fluid impermeable outer baffle, wherein (a) said napkin has an hourglass-shape comprising two end lobe regions and a narrower middle region, (b) said narrower middle region is outwardly bulging on the side of said absorbent adjacent said baffle, (c) the absorbent in said middle region is thicker than the absorbent in the end regions, (d) said absorbent is wood fluff, and (e) said middle region is about 1.5 to about 5 times the thickness of said lobe regions.

13. The napkin of claim 12 wherein said middle region is about 1.75 to about 3.0 times the thickness of said lobe region abosorbent.