Enhanced wet signal response in absorbent articles

• US 5,658,268 A
• Filed: 10/31/1995
• Issued: 08/19/1997
• Est. Priority Date: 10/31/1995
• Status: Expired due to Term

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Ellis, Clifford Jackson, Paul, Susan Carol, Johns, Eric Mitchell
• Primary Examiner(s): Zuttarelli, P.
• Application Number:
  US08/558,570
• Time in Patent Office: 658 Days
• Field of Search: 604/358, 604/361, 604/378-381, 604/384, 604/385.1
• US Class Current: 604/361
• CPC Class Codes: A61F 13/42 with wetness indicator or alarm

Abstract

Disclosed herein a personal care absorbent article which when first insulted, has a high initial surface moisture value which is maintained for several minutes but then, after a short period of time, drops to a lower value. As a result, the product has an initial "wet" feel but quickly changes to a "drier" feel so as to provide more comfort long term to the wearer.

Claims

1. A personal care absorbent article comprising:

a liquid permeable body side liner, an outer cover and an absorbent core disposed between said body side liner and said outer cover to form said article,

said body side liner having an insult time of five seconds or less in accordance with a liquid strike-through test,

said article further including a separation layer disposed between said body side liner and said absorbent core,

said article having a relative surface moisture value, in accordance with a relative surface moisture test, at approximately one minute after an insult with 80 milliliters of stabilized isotonic 0.9 percent saline solution of 70 percent or greater and a relative surface moisture value, in accordance with the relative surface moisture test, at approximately 10 minutes after said insult of 55 percent or less.

2. The personal care absorbent article of claim 1 wherein said relative surface moisture value at approximately one minute after said insult is 75 percent or greater.

3. The personal care absorbent article of claim 2 wherein said relative surface moisture value at approximately ten minutes after said insult is 50 percent or less.

4. The personal care absorbent article of claim 1 wherein said relative surface moisture value at approximately one minute after said insult is 80 percent or greater.

5. The personal care absorbent article of claim 4 wherein said relative surface moisture value at approximately ten minutes after said insult is 50 percent or less.

6. The personal care absorbent article of claim 4 wherein said relative surface moisture value at approximately ten minutes after said insult is 40 percent or less.

7. The personal care absorbent article of claim 1 wherein said separation layer has a basis weight of about 40 to about 170 grams per square meter, a void volume at 68.9 pascals of about 17 to about 117 cubic centimeters per gram of web, a permeability of about 5.0×

10^-2 to about 1.0×

10^-4 square centimeters and a surface area per void volume at 68.9 pascals of about 15 to about 90 square centimeters per cubic centimeter.

8. The personal care absorbent article of claim 1 wherein said article is in the form of a training pant.

9. The personal care absorbent article of claim 3 wherein said article is in the form of a training pant.

10. The personal care absorbent article of claim 5 wherein said article is in the form of a training pant.

11. The personal care absorbent article of claim 7 wherein said article is in the form of a training pant.

12. The personal care absorbent article of claim 1 wherein said article is in the form of a diaper.

13. The personal care absorbent article of claim 3 wherein said article is in the form of a diaper.

14. The personal care absorbent article of claim 5 wherein said article is in the form of a diaper.

15. The personal care absorbent article of claim 7 wherein said article is in the form of a diaper.

16. The personal care absorbent article of claim 1 wherein said article is in the form of an incontinence garment.

17. The personal care absorbent article of claim 3 wherein said article is in the form of an incontinence garment.

18. The personal care absorbent article of claim 5 wherein said article is in the form of an incontinence garment.

19. The personal care absorbent article of claim 7 wherein said article is in the form of an incontinence garment.