Absorbent article with elastic liner for waste material isolation

• US 4,990,147 A
• Filed: 09/02/1988
• Issued: 02/05/1991
• Est. Priority Date: 09/02/1988
• Status: Expired due to Term

• Current Assignee: The Procter & Gamble Company
• Original Assignee: The Procter & Gamble Company
• Inventors: Freeland, M. Elaine
• Primary Examiner(s): Rosenbaum, C. Fred
• Assistant Examiner(s): MCDERMOTT, CORRINE MARIE
• Application Number:
  US07/241,165
• Time in Patent Office: 886 Days
• Field of Search: 604/347, 604/397, 604/396, 604/392, 604/393, 604/366, 604/348, 604/385.1, 604/384, 604/389.2
• US Class Current: 604/385.22
• 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 2013/51322 being elastomeric or stretchable
• CPC Class Codes: A61F 2013/51409 being a film
• CPC Class Codes: A61F 2013/530007 being made from pulp
• CPC Class Codes: A61F 2013/530481 having superabsorbent materials, i.e. highly absorbent polymer gel materials

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 at least partially composed of elastic panels. The elastic panels register the passageway with the anal opening to minimize the size of the passageway and prevent unnecessary exposure of the skin to the solid waste materials.

Claims

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

a urine impervious backsheet;

an elastic liner made of a two-dimensional elastic material and having at least one passageway through said liner and adapted to permit waste materials to pass through said liner, said liner being at least partially peripherally affixed to and foreshortened relative to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and

an absorbent core intermediate said liner and said backsheet.

5. A disposable absorbent article according to claim 1, 2, 3 or 4 wherein said passageway is an aperture.

6. A disposable absorbent article according to claim 5 wherein said passageway has a greater longitudinal dimension than transverse dimension.

7. A disposable absorbent article according to claim 1, 2, 3 or 4 further comprising a means for transverse contraction of said liner.

8. A disposable absorbent article according to claim 7 wherein said means for transverse contraction of said liner comprises an elastic liner panel having a principal axis of elastic contraction oriented in a nonlongitudinal direction.

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

a urine impervious backsheet;

a liner having at least one passageway through said liner and adapted to permit waste materials to pass through said liner, said liner further having a trisection made of a first material and two panels made of a second material, said trisection being longitudinally centered intermediate said panels, one of said first and said second materials being elastic and made of a two-dimensional elastic material, the other being inelastic, said liner being at least partially peripherally affixed to and foreshortened relative to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and

an absorbent core intermediate said liner and said backsheet.

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

a urine impervious backsheet;

a liner having at least one passageway adapted to permit waste materials to pass through said liner, said liner further having a trisection made of a first material and two panels made of a second material, said trisection being transversely centered intermediate said panels, one of said first and said second materials being elastic, the other being inelastic, said liner being at least partially peripherally affixed to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and

an absorbent core intermediate said liner and said backsheet.

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

a urine impervious backsheet;

a liner having at least one passageway adapted to permit waste materials to pass through said liner, said liner having a panel disposed longitudinally offset from and to the front of said passageway and made of a first material, said liner further having a panel longitudinally offset from and to the rear of said passageway and made of a second material, one of said first and said second materials being elastic, the other being inelastic, said liner being at least partially peripherally affixed to said backsheet to form a void space registered with said passageway and intermediate said liner and said backsheet; and

an absorbent core intermediate said liner and said backsheet.