Absorbent article

• US 20080221541A1
• Filed: 03/05/2007
• Published: 09/11/2008
• Est. Priority Date: 03/05/2007
• Status: Active Grant

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Lavash, Bruce William, Zhao, Jean Jianqun, Ventura, Ann-Marie, Bien, Denise Jean
• Granted Patent: US 7,857,799 B2
• Time in Patent Office: Days
• US Class Current: 604/385.01
• CPC Class Codes: A61F 13/15707 Mechanical treatment, e.g. notching, twisting, compressing, shaping
• CPC Class Codes: A61F 13/4704 having preferential bending zones, e.g. fold lines or grooves
• CPC Class Codes: A61F 13/47218 with a raised crotch region, e.g. hump
• CPC Class Codes: A61F 13/47263 with activating means, e.g. elastic, heat or chemical activatable means
• CPC Class Codes: A61F 13/47272 with a longitudinal raised end, e.g. cup-shaped gluteal groove for edge leakage prevention A61F13/494
• CPC Class Codes: A61F 13/533 having discontinuous areas of compression
• CPC Class Codes: A61F 2013/530861 having slit regions

Abstract

A feminine hygiene device. The absorbent core can have a first compressibility in an unaltered state, wherein at least a portion of the absorbent core that is generally aligned with the longitudinal axis of the absorbent core has a second compressibility in an altered state. The second compressibility can be greater than the first compressibility. The portion of the absorbent core having the second compressibility can be a portion of the absorbent core from which absorbent material has not been completely removed. The feminine hygiene device has an elastic member generally aligned with the core longitudinal axis and spanning at least a portion of the absorbent core that has a preferentially weakened zone of compression. A portion of the absorbent core that is generally aligned with the core longitudinal axis can comprise structural features selected from the group consisting of slits, corrugations, nodules, and tufts.

Claims

1. A feminine hygiene device comprising:

an absorbent core comprising absorbent material and having a core longitudinal axis, said absorbent core having a first compressibility in an unaltered state, wherein at least a portion of said absorbent core that is generally aligned with said core longitudinal axis has a second compressibility in an altered state, wherein said second compressibility is greater than said first compressibility, wherein said portion of said absorbent core having said second compressibility is a part of said absorbent core from which absorbent material has not been completely removed; and

an elastic member, said elastic member spanning at least a portion of said absorbent core having said second compressibility, said elastic member operatively related to said absorbent core, said elastic member generally aligned with said core longitudinal axis.

2. The feminine hygiene device of claim 1, wherein said portion of said absorbent core having said second compressibility is a preferentially weakened zone of compression.

3. The feminine hygiene device of claim 1, wherein said portion having said second compressibility comprises a slit intersecting said core longitudinal axis.

4. The feminine hygiene device of claim 1, wherein said portion having said second compressibility comprises intersecting slits, at least one of said slits intersecting said core longitudinal axis.

5. The feminine hygiene device of claim 4, wherein said intersecting slits are orthogonal to one another and one of said slits is generally orthogonal to said core longitudinal axis.

6. The feminine hygiene device of claim 1, wherein said portion having said second compressibility comprises corrugations crossing said core longitudinal axis.

7. The feminine hygiene device of claim 1, wherein said portion having said second compressibility comprises nodules.

8. The feminine hygiene device of claim 7, wherein a plurality of said nodules is disposed in said absorbent core in a diamond shaped region.

9. The feminine hygiene device of claim 1, wherein said portion having said second compressibility comprises tufts.

10. The feminine hygiene device of claim 1 further comprising a backsheet adjacent to said absorbent core, wherein said elastic member is between said absorbent core and said backsheet.

11. The feminine hygiene device of claim 1, wherein said elastic member is joined to said absorbent core.

12. The feminine hygiene device of claim 1 further comprising a backsheet adjacent to said absorbent core, wherein said elastic member is joined to said backsheet.

13. The feminine hygiene device of claim 1 further comprising a first folding axis generally orthogonal to said core longitudinal axis, wherein said feminine hygiene device is folded flat about said first folding axis to form an absorbent core first fold line.

14. The feminine hygiene device of claim 13, wherein a portion of said absorbent core first fold line is proximal a portion of said absorbent core having said second compressibility.

15. The feminine hygiene device of claim 13, wherein said elastic member is in tension when said feminine hygiene device is in an unfolded position and the tension in said elastic member when the feminine hygiene device is in a folded position is less than the tension in said elastic member when the feminine hygiene device is in an unfolded position.

16. The feminine hygiene device of claim 13, wherein said absorbent core first fold line is non-linear.

17. The feminine hygiene device of claim 13, wherein said elastic member is folded and said elastic member is folded at a different location than where said absorbent core is folded.

18. The feminine hygiene device of claim 13 further comprising a second folding axis generally orthogonal to said core longitudinal axis, wherein said feminine hygiene device is folded flat about said second folding axis to form an absorbent core second fold line.

19. The feminine hygiene device of claim 1, said feminine hygiene device having middle area and a rear area, wherein said middle area has a W-shaped cross section and said rear area has an inverted V-shaped cross section.

20. The feminine hygiene device of claim 1 further comprising a topsheet and a backsheet, wherein said absorbent core is disposed between said topsheet and said backsheet, wherein said feminine hygiene device is a sanitary napkin.