Absorbent article having elastic strands

• US 4,892,536 A
• Filed: 09/02/1988
• Issued: 01/09/1990
• Est. Priority Date: 09/02/1988
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Moore, William J., DesMarais, Thomas A., Freeland, Mary E.
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): Polutta, Mark O.
• Application Number:
  US07/240,149
• Time in Patent Office: 494 Days
• Field of Search: 604/350, 604/351, 604/355, 604/385.1, 604/385.2, 604/392-395
• US Class Current: 604/385.27
• CPC Class Codes: A61F 13/49019 the elastic means being placed longitudinally, transversely or diagonally over the article
• CPC Class Codes: A61F 13/491 specially adapted for gender distinct urine discharge pattern
• CPC Class Codes: A61F 13/495 with faecal cavity
• CPC Class Codes: A61F 13/512 characterised by its apertures, e.g. perforations
• CPC Class Codes: A61F 13/58 Adhesive tab fastener elements A61F13/5611, A61F13/5616, A61F13/66 take precedence
• CPC Class Codes: A61F 2013/49031 being elastic in longitudinal direction
• CPC Class Codes: A61F 2013/51409 being a film

Abstract

A disposable absorbent article, such as a diaper, having a liquid impervious backsheet, a urine pervious liner, and absorbent core intermediate the backsheet and liner is disclosed. The liner has a passageway to allow communication of solid waste materials to the core, thereby isolating such waste from the skin of the wearer. The liner is longitudinally contracted by elastic strands disposed longitudinally nonadjacent the passageway, improving the fit of the article to the wearer without sacrificing leakage protection and allowing various sections of the article to assume independent functions.

Claims

1. A disposable absorbent article having a longitudinal axis, said article comprising:

a urine impervious backsheet;

a urine pervious liner having a front portion, a rear portion and at least one passageway adapted to permit waste materials to pass through said liner, said liner being at least partially peripherally affixed to said backsheet;

an absorbent core intermediate said liner and said backsheet;

a means for contracting said liner in the longitudinal direction, said contracting means being disposed substantially longitudinally nonadjacent said passageway and in the front portion of said liner; and

a means for contracting said liner in the longitudinal direction, said contracting means being disposed substantially longitudinally nonadjacent said passageway and in the rear portion of said liner.

3. A disposable absorbent article according to claim 1 or 2 wherein said passageway is an aperture.

4. A disposable absorbent article according to claim 3 wherein said aperture has a greater longitudinal dimension than transverse dimension.

5. A disposable absorbent article according to claim 1 or 2 further comprising a means for transverse contraction of said liner.

6. A disposable absorbent article according to claim 5 wherein said means for transverse contraction of said liner comprises at least one elastic strand having a nonlongitudinal orientation.

7. A disposable absorbent article according to claim 6 wherein said liner has a front portion and a rear portion, said liner having more than one elastic strand disposed in said front portion and at least one elastic strand disposed in said rear portion.

8. A disposable absorbent article according to claim 7 having two elastic strands disposed in said front portion, said two elastic strands forming a V-shape, said V-shape having the vertex oriented towards said passageway.

9. A disposable absorbent article according to claim 8 wherein said elastic strands are transversely adjacent said passageway and further comprising a plurality of secondary elastic strands which contract said liner in the generally longitudinal direction, said secondary elastic strands being disposed substantially transversely and longitudinally nonadjacent said passageway.

10. A disposable absorbent article according to claim 9 wherein said secondary elastic strands contract said liner less than said transversely adjacent elastic strands contract said liner.

11. A disposable absorbent article according to claim 1 wherein said front portion contracting means and said rear portion contracting means are oriented at an angle of about 0°

to about 45°

relative to the longitudinal axis.

12. A disposable absorbent article according to claim 11 wherein both of said contracting means are oriented at an angle of about 10°

to about 45°

relative to the longitudinal axis.

2. A disposable absorbent article having a longitudinal axis, said article comprising:

a urine impervious backsheet;

a urine pervious liner having a front portion, a rear portion and at least one passageway adapted to permit waste materials to pas through said liner, said liner being at least partially peripherally affixed to said backsheet;

an absorbent core intermediate said liner and said backsheet; and

at least one elastic strand disposed in said front portion and at least one elastic strand disposed in said rear portion, which elastic strands contract said liner in the longitudinal direction, said elastic strands being substantially longitudinally nonadjacent said passageway.

13. A disposable absorbent article according to claim 2 wherein said front portion elastic strands and said rear portion elastic strands are oriented at an angle of about 0°

to about 45°

relative to the longitudinal axis.

14. A disposable absorbent article according to claim 13 wherein both of said elastic strands are oriented at an included angle of about 10°

to about 45°

relative to the longitudinal axis.