Absorbent Article with Channel Portion

• US 20110152813A1
• Filed: 12/17/2009
• Published: 06/23/2011
• Est. Priority Date: 12/17/2009
• Status: Abandoned Application

• Current Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Original Assignee: Kimberly-Clark Worldwide Incorporated (Kimberly-Clark Corporation)
• Inventors: Ellingson, Daniel Lee
• Application Number:
  US12/640,626
• Publication Number:
  US 20110152813A1
• Time in Patent Office: Days
• US Class Current: 604/374
• CPC Class Codes: A61F 13/532 inhomogeneous in the plane of the pad
• 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

Abstract

An absorbent article includes a liquid pervious body side liner, a liquid impervious outer cover, and an absorbent core located between the body side liner and the outer cover. The absorbent core includes a first absorbent portion, a second absorbent portion, and a channel portion. The channel portion extends the entire length of the absorbent core. The first absorbent portion, the second absorbent portion, and the channel portion all lie in the same plane. The channel portion completely separates the first absorbent portion from the second absorbent portion and the channel portion is a stabilized, high-loft material with permanent thermal bond points.

Claims

1. An absorbent article comprising,

a liquid pervious body side liner, a liquid impervious outer cover, and an absorbent core located between the body side liner and the outer cover,

the absorbent core comprising a first absorbent portion, a second absorbent portion, and a channel portion,

the absorbent core defining a length in a longitudinal direction, a width in a lateral direction, and a thickness in a z-direction, the longitudinal direction and the lateral direction defining a first plane, wherein

the first absorbent portion, the second absorbent portion, and the channel portion all lie in the first plane;

the channel portion extends the entire length of the absorbent core;

the channel portion completely separates the first absorbent portion from the second absorbent portion; and

the channel portion is a stabilized, high-loft material with permanent thermal bond points.

2. The absorbent article of claim 1 wherein the channel portion is a bonded carded web, a meltblown web, a coformed web, or a spunbonded web.

3. The absorbent article of claim 1 wherein the channel portion is a bonded carded web comprising hollow polypropylene fibers.

4. The absorbent article of claim 1 wherein the channel portion is a powder bonded carded web comprising hollow polyester fibers.

5. The absorbent article of claim 1 wherein the first absorbent portion and the second absorbent portion are air-laid.

6. The absorbent article of claim 5 wherein the first absorbent portion and the second absorbent portion comprise a matrix of cellulosic fibers mixed with superabsorbent particles.

7. The absorbent article of claim 6 wherein the channel portion is substantially free of absorbent material.

8. The absorbent article of claim 7 further comprising a surge material positioned between the body side liner and the first absorbent portion, the second absorbent portion, and the channel portion.

9. The absorbent article of claim 1 wherein the absorbent article further comprises a core wrap having a first portion positioned between the body side liner and the absorbent core and a second portion positioned between the absorbent core and the outer cover.

10. The absorbent article of claim 9 wherein the core wrap is nonwoven web made from meltblown thermoplastic fibers.

11. The absorbent article of claim 10 wherein the absorbent core defines longitudinal edges and the core wrap is a unitary web comprising both the first portion and the second portion and the core wrap completely surrounds the longitudinal edges of the absorbent core.

12. The absorbent article of claim 11 wherein the first portion and the second portion are adhesively joined to first absorbent portion, the second absorbent portion, and the channel portion.

13. An absorbent article comprising,

a liquid pervious body side liner, a liquid impervious outer cover, and an absorbent core located between the body side liner and the outer cover,

the absorbent core comprising a first absorbent portion, a second absorbent portion, and a channel portion,

the absorbent article defining a longitudinal direction, a lateral direction, and a z-direction, the longitudinal direction and the lateral direction defining a first plane, wherein

the first absorbent portion, the second absorbent portion, and the channel portion all lie in the first plane;

the channel portion extends the entire longitudinal direction and completely separates the first absorbent portion from the second absorbent portion;

the first absorbent portion and the second absorbent portion are both air laid webs comprising a matrix of cellulosic fibers mixed with superabsorbent particles; and

the channel portion is a bonded carded web, a meltblown web, a coformed web, or a spunbonded web.

14. The absorbent article of claim 13 wherein the channel portion is a bonded carded web comprising hollow polypropylene fibers or hollow polyester fibers.

15. The absorbent article of claim 13 wherein the channel portion is substantially free of absorbent material.

16. The absorbent article of claim 13 further comprising a surge material positioned between the body side liner and the first absorbent portion, the second absorbent portion, and the channel portion.

17. The absorbent article of claim 13 wherein the absorbent article further comprises a core wrap having a first portion positioned between the body side liner and the absorbent core and a second portion positioned between the absorbent core and the outer cover.

18. The absorbent article of claim 13 wherein the channel portion extends the entire lateral direction and completely separates a first piece of the first absorbent portion from a second piece of the first absorbent portion and completely separates a first piece of the second absorbent portion from a second piece of the second absorbent portion.

19. An absorbent article comprising,

a liquid pervious body side liner, a liquid impervious outer cover, and an absorbent core located between the body side liner and the outer cover,

the absorbent core comprising an absorbent portion, a first channel portion, and a second channel portion,

the absorbent article defining a longitudinal direction, a lateral direction, and a z-direction, the longitudinal direction and the lateral direction defining a first plane, wherein

the first channel portion, the second channel portion, and the absorbent portion extend the entire longitudinal direction;

the absorbent portion completely separates the first channel portion from the second channel portion;

the absorbent portion, the first channel portion, and the second channel portion all lie in the first plane; and

the first channel portion and the second channel portion are bonded carded webs.

20. The absorbent article of claim 19 wherein the bonded carded webs comprise hollow polypropylene fibers and the absorbent portion comprises a matrix of cellulosic fibers mixed with superabsorbent particles.