Absorbent article with high capacity surge management component

• US 5,527,300 A
• Filed: 08/31/1994
• Issued: 06/18/1996
• Est. Priority Date: 08/31/1994
• Status: Expired due to Fees

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Corporation
• Inventors: Sauer, Barbara O.
• Primary Examiner(s): Green, Randall L.
• Assistant Examiner(s): Cho, David J.
• Application Number:
  US08/299,711
• Time in Patent Office: 657 Days
• Field of Search: 604/385.2, 604/385.1, 604/378, 604/368, 604/373
• US Class Current: 604/378
• CPC Class Codes: A61F 13/49 Absorbent articles specially adapted to be worn around the waist, e.g. diapers
• CPC Class Codes: A61F 13/535 inhomogeneous in the plane of the pad, e.g. core absorbent layers being of different sizes A61F13/5323, A61F13/537 take precedence
• CPC Class Codes: A61F 2013/51195 not contacting the absorber
• CPC Class Codes: A61F 2013/53795 being a surge management layer

Abstract

A distinctive absorbent article has laterally opposed side margins, a front waistband portion, a back waistband portion, and an intermediate portion which interconnects the front and back waistband portions. The article comprises a backsheet layer, and an absorbent retention portion superposed on the backsheet layer. A liquid permeable topsheet layer is superposed on the retention portion to sandwich the retention portion between the topsheet and backsheet layers. A leg elastic connects to each of the side margins of the article to provide elasticized, gathered leg openings. A liquid permeable surge management portion is located adjacent a major facing surface of the topsheet layer. The surge management portion has laterally opposed side edge regions thereof, longitudinally opposed end sections thereof, and an intermediate section which interconnects the end sections. An contracting mechanism is incorporated into the surge management portion, and is constructed to operate separately from the leg elastics. The contracting mechanism is configured to shorten a length dimension of the surge management portion, and an attaching mechanism secures selected portions of the contracted, shortened surge management portion to the article.

Claims

1. An absorbent article having laterally opposed side margins, a front waistband portion, a back waistband portion and an intermediate portion which interconnects said front and back waistband portions, said article comprising:

a backsheet layer;

an absorbent retention portion superposed on said backsheet layer;

a liquid permeable topsheet layer superposed on said retention portion to sandwich said retention portion between said topsheet and backsheet layers;

a leg elastic connected to each of said side margins of said article to provide elasticized, gathered leg openings;

a liquid permeable surge management portion located between said retention portion and said topsheet layer, said surge portion having laterally opposed side edge regions thereof, longitudinally opposed end sections thereof and an intermediate section which interconnects said end sections;

a contracting means connected to said surge management portion and constructed separate from said leg elastics, said contracting means configured to shorten a length dimension of said surge management portion; and

attaching means for securing said surge management portion to said article, said attaching means configured to secure a portion of said intermediate section of said surge management portion to said article with said end sections of said surge management portion unattached to said article, thereby allowing a differential contraction in length between said surge management portion and said topsheet layer.

2. An absorbent article as recited in claim 1, wherein said shortened length of said surge management portion is less than a flat-out length of said article.

3. An absorbent article as recited in claim 2, wherein said surge management portion is positioned adjacent an outwardly facing surface of said topsheet layer.

4. An absorbent article as recited in claim 1, wherein said surge management portion has a flat-out extended, uncontracted length which is not less than a flat-out extended length of said article.

5. An absorbent article as recited in claim 1, wherein said surge management portion has a flat-out extended, uncontracted length which is not less than a flat-out extended length of said retention portion.

6. An absorbent article as recited in claim 1, wherein said surge management portion has a flat-out extended, uncontracted length which is smaller than a flat-out extended length of said article.

7. An absorbent article as recited in claim 1, wherein said surge management portion has a flat-out extended length which is smaller than a flat-out extended length of said retention portion.

8. An absorbent article as recited in claim 1, wherein each of said contracting means comprises at least one elastic member.

9. An absorbent article as recited in claim 1, wherein each of said contracting means comprises at least one heat-shrinkable member.

10. An absorbent article as recited in claim 1, wherein said surge management portion is a fabric web including a fibers constructed of an elastomeric material to thereby provide said contracting means.

11. An absorbent article as recited in claim 1, wherein said attaching means is located relatively closer to a front margin of said article, thereby allowing a back portion of said surge management portion to contract a greater length than a front portion of said surge management portion.

12. An absorbent article as recited in claim 1, wherein a back portion of said surge management portion has a higher rigidity than a front portion of said surge management portion, thereby allowing said back portion to contract a lesser distance than said front portion.

13. An absorbent article as recited in claim 1, wherein a back portion of said surge management portion has a higher dignity than a front portion of said surge management portion, thereby allowing a contraction of said surge management portion to provide said back portion with a lesser gain in basis weight and loft than said front portion.

14. An absorbent article having laterally opposed side margins, a front waistband portion, a back waistband portion and an intermediate portion which interconnects said front and back waistband portions, said article comprising:

a backsheet layer;

an absorbent retention portion superposed on said backsheet layer;

a liquid permeable topsheet layer superposed on said retention portion to sandwich said retention portion between said topsheet and backsheet layers;

a leg elastic connected to each of said side margins of said article to provide elasticized, gathered leg openings;

a liquid permeable surge management portion located between said retention portion and said topsheet layer, said surge portion having laterally opposed side edge regions thereof, longitudinally opposed end sections thereof and an intermediate section which interconnects said end sections;

a laterally extending contracting means connected to said surge management portion and constructed separate from said leg elastics, said contracting means configured to shorten a width dimension of said surge management portion; and

attaching means for securing said surge management portion to said article, said attaching means configured to attach a cross-wise medial region of said surge management portion to said article at an anchor region and configured to provide non-anchored sections of said surge management portion on either side of said anchor region, thereby allowing said non-anchored sections to retract toward a centerline of said surge management portion.

15. An absorbent article as recited in claim 14, wherein said shortened width of said surge management portion is less than a flat-out width of said article.

16. An absorbent article as recited in claim 15, wherein said surge management portion is positioned adjacent an outwardly facing surface of said topsheet layer.

17. An absorbent article as recited in claim 16, wherein a longitudinally extending medial section of said surge management portion is secured to a longitudinally extending, medial portion of said article.

18. An absorbent article as recited in claim 17, wherein each of said contracting means comprises at least one elastic member.

19. An absorbent article as recited in claim 17, wherein each of said contracting means comprises at least one heat-shrinkable member.

20. An absorbent article as recited in claim 17, wherein said surge management portion is a fabric web which includes fibers constructed of an elastomeric material to thereby provide said contracting means.

21. An absorbent article having laterally opposed side margins, a front waistband portion, a back waistband portion and an intermediate portion which interconnects said front and back waistband portions, said article comprising:

a backsheet layer;

an absorbent retention portion superposed on said backsheet layer;

a liquid permeable topsheet layer superposed on said retention portion to sandwich said retention portion between said topsheet and backsheet layers;

a leg elastic connected to each of said side margins of said article to provide elasticized, gathered leg openings;

a liquid permeable surge management portion located adjacent a bodyside surface of said retention portion, between said retention portion and said topsheet layer, said surge portion having laterally opposed side edge regions thereof, longitudinally opposed end sections thereof and an intermediate section which interconnects said end sections;

a first contracting means connected to said surge management portion and constructed separate from said leg elastics, said contracting means configured to shorten a length dimension of said surge management portion;

a second, laterally extending contracting means connected to said surge management portion and constructed separate from said leg elastics, said contracting means configured to shorten a width dimension of said surge management portion; and

attaching means for securing said surge management portion to said article, said attaching means configured to secure a portion of said intermediate section of said surge management to said article with said end sections of said surge management portion substantially unattached to said article, thereby allowing a differential contraction in length between said surge management portion and said topsheet layer, and said attaching means configured to attach a cross-wise medial region of said surge management portion to said article at an anchor region and configured to provide non-anchored sections of said surge management portion on either side of said anchor region, thereby allowing said second contracting means to retract said non-anchored sections toward a centerline of said surge management portion.

22. An absorbent article as recited in claim 21, wherein a back portion of said surge management portion has a higher dignity than a front portion of said surge management portion, thereby allowing said back portion to contract a lesser distance than said front portion.

23. An absorbent article as recited in claim 21, wherein a back portion of said surge management portion has a higher dignity than a front portion of said surge management portion, thereby allowing a contraction of said surge management portion to provide said back portion with a lesser gain in basis weight and loft than provided to said front portion.