Absorbent article

• US 6,152,908 A
• Filed: 09/10/1996
• Issued: 11/28/2000
• Est. Priority Date: 03/18/1994
• Status: Expired due to Fees

• Current Assignee: Molnlycke AB (Investor AB)
• Original Assignee: Molnlycke AB (Investor AB)
• Inventors: Gustafsson, Anders, Widlund, Urban, Svernlov, Anna
• Primary Examiner(s): Weiss, John G.
• Assistant Examiner(s): REICHLE, KARIN M
• Application Number:
  US08/704,705
• Time in Patent Office: 1,540 Days
• Field of Search: 604/317, 604/327-331, 604/346-358, 604/369, 604/374-378, 604/385.1, 604/385.2, 604/397-399, 604/385.19, 604/385.27, 604/325.28, 128/98.1, 602/67
• US Class Current: 604/385.19
• CPC Class Codes: A61F 13/49017 the elastic means being located at the crotch region
• CPC Class Codes: A61F 13/491 specially adapted for gender distinct urine discharge pattern
• CPC Class Codes: A61F 13/49466 the edge leakage prevention means being at the waist region
• CPC Class Codes: A61F 13/49473 the edge leakage prevention means having a continuous closed form, e.g. circle, ellipse, rectangle
• CPC Class Codes: A61F 13/495 with faecal cavity
• CPC Class Codes: A61F 13/5116 being formed of multiple layers A61F13/5123 takes precedence
• CPC Class Codes: A61F 13/5323 having absorbent material located in discrete regions, e.g. pockets
• CPC Class Codes: A61F 2013/15406 Basis weight
• CPC Class Codes: A61F 2013/15422 Density
• CPC Class Codes: A61F 2013/4581 with absorbent core in separated pieces
• CPC Class Codes: A61F 2013/49025 having multiple elastic strands
• CPC Class Codes: A61F 2013/49031 being elastic in longitudinal direction
• CPC Class Codes: A61F 2013/49038 the elastic means is located all around the absorbent article's perimeter
• CPC Class Codes: A61F 2013/49039 the elastic means is located around the target zone
• CPC Class Codes: A61F 2013/4948 the edge leakage prevention means being elastic
• CPC Class Codes: A61F 2013/49493 the edge leakage prevention means being or forming three-dimensional barrier with raised lateral side-or end-wall
• CPC Class Codes: A61F 2013/4953 with rear faecal part separate from front urinary part
• CPC Class Codes: A61F 2013/51195 not contacting the absorber
• CPC Class Codes: A61F 2013/5128 characterized by open targets or acquisitions or vulnerability zones
• CPC Class Codes: A61F 2013/51409 being a film
• CPC Class Codes: A61F 2013/530007 : being made from pulp
• CPC Class Codes: A61F 2013/53445 : from several sheets

Abstract

An absorbent article having a front part (12), a rear part (14) and an intermediate crotch part (13), such as a diaper, an incontinence guard or like article. The article includes an absorbent body (1), a liquid-impermeable bottom sheet (7) joined to the absorbent body, and a top sheet (9) which is free from connection with the absorbent body over a large part of its surface and which lies proximal to the wearer'"'"'s body when the article is worn, and which top sheet includes an opening (15) which extends from the rear article part into the crotch part, and elastic devices (24, 25) which are fastened to the top sheet in a stretched state and which when contracting from the stretched state cause the part of the top sheet that is not joined to the absorbent body to be distanced from the body. The top sheet (9) includes a further opening (16) which extends from the front part (12) into the crotch part (13). A piece (26) of flexible material extends transversely across the article between the absorbent body (1) and the top sheet (9) within that region of the top sheet that lies between the two openings (15, 16), this piece of flexible material being fastened to the absorbent body and to the top sheet.

Claims

1. An absorbent article with front and rear parts and a crotch part therebetween, the article comprising:

an absorbent body extended longitudinally from the front part to the rear part of the article;

a liquid-impermeable bottom sheet joined to a first side of said absorbent body;

a top sheet that lies proximal to a wearer'"'"'s body when the article is being worn, said top sheet having a first opening at the front part of the article and a second opening at the rear part of the article, said first and second openings each having longitudinal edges and either a front or a rear part lateral edge, the longitudinal and lateral edges being spaced from a peripheral edge of said top sheet, and one crotch part lateral edge adjacent to a laterally extended bridge of said top sheet, said top sheet being connected to said absorbent body on a second side of said absorbent body opposite said first side at a periphery of said top sheet and at said bridge;

elastic devices fastened to said top sheet in a stretched state that separate said top sheet from said absorbent body when contracted, except at said periphery of said top sheet; and

a laterally aligned flexible member connected to said top sheet across said bridge and to said absorbent body adjacent the crotch part to separate a space between said top sheet and said absorbent body into a first pouch that opens at said first opening and a second pouch that opens at said second opening.

2. The absorbent article of claim 1, further comprising a liquid-permeable casing sheet joined to said second side of said absorbent body, and wherein said top sheet is affixed to said casing sheet at said periphery of said top sheet.

3. The absorbent article of claim 2, wherein said flexible member comprises a tubular body having diametrically opposing sides affixed to said bridge of said top sheet and to said casing sheet.

4. The absorbent article of claim 2, wherein said flexible member comprises a fold of said casing sheet that is affixed to said bridge of said top sheet.

5. The absorbent article of claim 2, wherein said flexible member comprises a single sheet affixed to said bridge of said top sheet and to said casing sheet.

6. The absorbent article of claim 1, wherein said first opening is for being positioned adjacent a wetting point of the wearer and said second opening is for being positioned adjacent a faecal discharge point of the wearer, when the article is being worn.

7. The absorbent article of claim 1, wherein said first and second openings are narrower at said bridge than adjacent the front and rear parts of the article.

8. The absorbent article of claim 1, wherein said elastic devices are fastened to said longitudinal edges of said first and second openings.

9. The absorbent article of claim 1, wherein said flexible member comprises a tubular body having diametrically opposing sides connected to said bridge of said top sheet and said absorbent body at the crotch part of the article.

10. The absorbent article of claim 1, wherein said absorbent body comprises a longitudinally extended central body and two laterally separated side bodies.

11. The absorbent article of claim 10, further comprising a liquid-permeable casing sheet joined to said second side of said absorbent body, and wherein said casing sheet is affixed to said bottom sheet at separations between said side bodies and said central body.

12. The absorbent article of claim 1, wherein said front and rear part lateral edges of said first and second openings are spaced farther from longitudinal ends of the front and rear parts, respectively, than corresponding ends of said absorbent body.

13. An absorbent article with front and rear parts and a crotch part therebetween, the article comprising:

an absorbent member having a central body extended longitudinally from the front part to the rear part of the article and two laterally separated side bodies;

a liquid-impermeable bottom sheet joined to a first side of said absorbent member;

a liquid-permeable casing sheet joined to a second side of said absorbent member opposite said first side, said casing sheet being affixed to said bottom sheet at separations between said side bodies and said central body;

a top sheet that lies proximal to a wearer'"'"'s body when the article is being worn, said top sheet having a first opening at the front part of the article and a second opening at the rear part of the article, said first and second openings being separated by a laterally extended bridge of said top sheet at the crotch part of the article, said top sheet being affixed to said casing sheet at a periphery of said top sheet and connected to said casing sheet at said bridge;

elastic devices fastened to said top sheet in a stretched state that separate said top sheet from said casing sheet when contracted, except at said periphery of said top sheet; and

a laterally aligned flexible member connected to said top sheet across said bridge and to said casing sheet adjacent the crotch part to separate a space between said top sheet and said casing sheet into a first pouch that opens at said first opening and a second pouch that opens at said second opening.

14. The absorbent article of claim 13, wherein said flexible member comprises a tubular body having diametrically opposing sides affixed to said bridge of said top sheet and to said casing sheet.

15. The absorbent article of claim 13, wherein said flexible member comprises a fold of said casing sheet that is affixed to said bridge of said top sheet.

16. The absorbent article of claim 13, wherein said flexible member comprises a single sheet affixed to said bridge of said top sheet and to said casing sheet.

17. An absorbent article with front and rear parts and a crotch part therebetween, the article comprising:

an absorbent body;

a top sheet that lies proximal to a wearer'"'"'s body when the article is being worn, said top sheet having a first opening at the front part of the article and a second opening at the rear part of the article, said first and second openings being separated by a bridge of said top sheet, said top sheet being connected to said absorbent body at a periphery of said top sheet and at said bridge;

a tubular body having diametrically opposing sides connected to said top sheet across said bridge and to said absorbent body adjacent the crotch part to form a first pouch that opens at said first opening and a second pouch that opens at said second opening.

18. The absorbent article of claim 17, wherein said first and second openings each have side edges and either a front or a rear part lateral edge, the side and lateral edges being spaced from a peripheral edge of said top sheet, and one crotch part lateral edge adjacent to said bridge.

19. The absorbent article of claim 18, wherein said front and rear part lateral edges of said first and second openings are spaced farther from ends of the front and rear parts, respectively, than corresponding ends of said absorbent body.