Absorbent article and a method of removing said article from an undergarment

• US 5,429,630 A
• Filed: 05/29/1992
• Issued: 07/04/1995
• Est. Priority Date: 05/29/1992
• Status: Expired due to Term

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Corporation
• Inventors: Beal, Chantelle M., Serbiak, Paul J., Finch, Valerie V.
• Primary Examiner(s): CLARKE, ROBERT A
• Application Number:
  US07/891,387
• Time in Patent Office: 1,131 Days
• Field of Search: 604/385.1, 604/386, 604/387, 604/389, 604/391, 604/393, 604/394, 604/397
• US Class Current: 604/385.04
• CPC Class Codes: A61F 13/15203 Properties of the article, e.g. stiffness or absorbency chemical aspects A61L15/00
• CPC Class Codes: A61F 13/476 characterised by encircling the crotch region of the undergarment
• CPC Class Codes: A61F 13/5616 using flaps, e.g. adhesive, for attachment to the undergarment leakage prevention means encirculing the crotch portion A61F13/476
• CPC Class Codes: A61F 2013/15365 Dimensions
• CPC Class Codes: A61F 2013/15373 Calliper, i.e. thickness
• CPC Class Codes: A61F 2013/15382 Reduced thickness
• CPC Class Codes: A61F 2013/1591 via adhesive
• CPC Class Codes: A61F 2013/15918 for die cutting
• CPC Class Codes: A61F 2013/4708 Panty-liner
• CPC Class Codes: A61F 2013/51078 being embossed
• CPC Class Codes: A61F 2013/583 with strips on several places
• CPC Class Codes: A61F 2013/585 being spot like
• CPC Class Codes: A61F 2013/586 on lateral flaps

Abstract

An absorbent article is disclosed along with a method of removing the absorbent article from an undergarment. The absorbent article has a liquid-permeable cover, a liquid-impermeable baffle, and an absorbent positioned therebetween to form a pad. The pad has a central portion, longitudinally-extending sides, and a pair of relatively stiff tabs extending laterally outward from the longitudinal sides. The pad has a body-facing surface and a garment-facing surface. The absorbent article further includes adhesive for securing the pad to the crotch portion of an undergarment. The adhesive is secured on the garment-facing surface of the pad and is present on each of the tabs. Release paper covers the adhesive.

Claims

1. An absorbent article comprising:

a) an absorbent having a central portion with longitudinally-extending. sides and a pair of relatively stiff tabs extending laterally outward from said longitudinal sides, said absorbent having a body-facing surface and a garment-facing surface, said tabs requiring a peak force of at least 20 grams to bend each of said tabs through an angle of 90°

starting from a position wherein each of said tabs are aligned perpendicular to said body-facing surface; and

b) means for securing said absorbent to an undergarment, said means being secured to said garment-facing surface and being present on both of said tabs.

2. The absorbent article of claim 1 wherein said tabs require a peak force of from about 20 to about 70 grams to bend said tabs through an angle of 90°

starting from a position wherein said tabs are aligned perpendicular to said body-facing surface.

3. The absorbent article of claim 1 wherein said body-facing surface has a surface area of less than about 30 square inches and said article has a basis weight of less than about 400 grams per square meter.

4. An absorbent article comprising:

a) a liquid-permeable cover;

b) a liquid-impermeable baffle;

c) an absorbent positioned between said cover and said baffle forming a pad having a central portion with longitudinally-extending sides and a pair of relatively stiff tabs extending laterally outward from said longitudinal sides, said pad having a body-facing surface, a garment-facing surface and a uniform thickness, said tabs requiring a peak force of at least 20 grams to bend each of said tabs through an angle of 90°

starting from a position wherein each of said tabs are aligned perpendicular to said body-facing surface;

d) attachment means for securing said pad to an undergarment, said attachment means being secured to said garment-facing surface and being present on both of said tabs; and

e) release paper covering said attachment means.

5. The absorbent article of claim 4 wherein each of said tabs have a width dimension, measured parallel to a central transverse axis of said article, which prevent said tabs from contacting one another when said tabs are folded under said undergarment.

6. The absorbent article of claim 4 wherein a plurality of embossed lines extend downward from said body-facing surface into said absorbent to add integrity to said pad.

7. The absorbent article of claim 4 wherein each of said tabs is designed to be folded downward, along a line aligned parallel to each of said longitudinal sides, and each tab is to be secured to an exterior surface of said undergarment by said attachment means.

8. The absorbent article of claim 4 having a thickness of between about 1.5 to about 3.5 millimeters.

9. The absorbent article of claim 8 wherein said release paper and said pad have coterminous exterior peripheries.

10. The absorbent article of claim 4 wherein each of said tabs has a trapezoidal shape with length and width dimensions measured parallel to the longitudinal and transverse central axes of said article, respectively, each of said tabs having a maximum length of about 2.0 inches and a width of about 1.5 inches.

11. An absorbent article comprising:

a) a liquid-permeable cover;

b) a liquid-impermeable baffle;

c) an absorbent positioned between said cover and said baffle forming a pad having a central portion with longitudinally-extending sides and a pair of relatively stiff tabs extending laterally outward from said longitudinal sides, said pad having a body-facing surface, a garment-facing surface and having a uniform thickness, said tabs requiring a peak force of at least 10 grams to bend each of said tabs through an angle of 90°

starting from a position wherein each of said tabs is aligned perpendicular to said body-facing surface;

d) adhesive means for securing said pad to an undergarment, said adhesive means being located on said garment-facing surface with some of said adhesive being present on said central portion and some of said adhesive being present on each of said tabs; and

e) release paper covering said adhesive means.

12. The absorbent article of claim 11 wherein said tabs, with said release paper removed, require a peak force of at least 10 to about 100 grams to bend each of said tabs through an angle of 90°

starting from a position wherein each of said tabs is aligned perpendicular to said body-facing surface.

13. The absorbent article of claim 12 wherein said tabs, with said release paper removed, require a peak force of about 15 to about 70 grams to bend each of said tabs through an angle of 90°

starting from a position wherein each of said tabs is aligned perpendicular to said body-facing surface.

14. The absorbent article of claim 11 wherein each of said tabs has a trapezoidal shape with length and width dimensions measured parallel to the longitudinal and transverse central axes of said article, respectively, each of said tabs having a maximum length of less than about 2.0 inches and a width of less than about 1.5 inches.

15. The absorbent article of claim 11 wherein, after removing said release paper, said tabs extend laterally outward from said longitudinal sides of said central portion.

16. The absorbent article of claim 11 wherein, after removing said release paper, said tabs extend outward from said longitudinal sides of said central portion and exhibit a droop of less than about 15°

relative to said body-facing surface of said central portion.

17. The absorbent article of claim 11 wherein, after removing said release paper, said tabs maintain their original position with respect to said body-facing surface.

18. The absorbent article of claim 11 wherein said adhesive means covers a surface area of at least 0.5 square inches on each tab.

19. The absorbent article of claim 11 wherein at least 50% of the surface area of each tab is covered by adhesive.

20. The absorbent article of claim 11 wherein said adhesive extends the entire length of said tab, said length being measured parallel to the longitudinal central axis of said article.

21. An absorbent article comprising:

a) a liquid-permeable spunbond cover;

b) a liquid-impermeable polyethylene baffle;

c) an absorbent positioned between said cover and said baffle forming a pad having a central portion with longitudinally-extending sides and a pair of lateral tabs extending outward from said longitudinal sides, each of said tabs having a length less than about 25% of the length of said pad, said pad having a body-facing surface, a garment-facing surface and a uniform thickness, said tabs requiring a peak force of at least 20 grams to bend each of said tabs through an angle of 90°

starting from a position wherein each of said tabs are aligned perpendicular to said body-facing surface;

d) adhesive means for securing said pad to an undergarment, said adhesive means being located on said garment-facing surface with some of said adhesive being present on said central portion and some of said adhesive being present on each of said tabs; and

e) a single piece of release paper covering said adhesive means, said release paper having a periphery coterminous with an exterior periphery of said pad.

22. The absorbent article of claim 21 wherein said central portion has an elongated oval configuration.

23. The absorbent article of claim 21 wherein said central portion has an hourglass configuration.

24. The absorbent article of claim 21 wherein said central portion has a rectangular configuration.

25. The absorbent article of claim 21 wherein at least 50% of the surface area of each tab is covered by adhesive.

26. The absorbent article of claim 21 wherein approximately the entire surface area of each tab is covered by adhesive.

27. The absorbent article of claim 21 wherein a continuous embossed line is formed inward of the periphery of said pad to add integrity.