ABSORBENT ARTICLE

• US 20100121296A1
• Filed: 03/21/2008
• Published: 05/13/2010
• Est. Priority Date: 03/26/2007
• Status: Active Grant

• Current Assignee: Unicharm Corporation
• Original Assignee: Unicharm Corporation
• Inventors: Noda, Yuki, Nishikawa, Kumiko, Kuroda, Kenichiro
• Granted Patent: US 8,558,054 B2
• Time in Patent Office: Days
• US Class Current: 604/367
• CPC Class Codes: A61F 13/4704 having preferential bending zones, e.g. fold lines or grooves
• CPC Class Codes: A61F 13/532 inhomogeneous in the plane of the pad

Abstract

The present invention enables an absorbent body material article to be bent more easily when an absorbent article is wrapped. The invention provides an absorbent article that is used in a state in which the absorbent article contacts a body of a wearer on a skin face side, including: an absorbent article main unit; an absorbent body material that is included in the absorbent article main unit and that includes an absorbent fiber and a super absorbent resin; and interspersed sections that are included in the absorbent body material and that have a longitudinal direction, a lateral direction, and a thickness direction, wherein a densely gathered state of the absorbent fiber in each of the interspersed sections is less dense than a densely gathered state of the absorbent fiber around each of the interspersed sections, and an occupied volume ratio of the super absorbent resin in the interspersed sections is greater than an occupied volume ratio of the super absorbent resin around the interspersed sections, the absorbent article has a fold line for wrapping, and when the absorbent article is viewed from the skin face side, at least one of the interspersed sections overlaps the fold line in a state in which the longitudinal direction of the at least one of the interspersed sections is aligned with the fold line.

Claims

1. An absorbent article that is used in a state in which the absorbent article contacts a body of a wearer on a skin face side, comprising:

an absorbent article main unit;

an absorbent body material that is included in the absorbent article main unit and that includes an absorbent fiber and a super absorbent resin; and

interspersed sections that are included in the absorbent body material and that have a longitudinal direction, a lateral direction, and a thickness direction,

wherein

a densely gathered state of the absorbent fiber in each of the interspersed sections is less dense than a densely gathered state of the absorbent fiber around each of the interspersed sections, and an occupied volume ratio of the super absorbent resin in the interspersed sections is greater than an occupied volume ratio of the super absorbent resin around the interspersed sections,

the absorbent article has a fold line for wrapping, and

when the absorbent article is viewed from the skin face side, at least one of the interspersed sections overlaps the fold line in a state in which the longitudinal direction of the at least one of the interspersed sections is aligned with the fold line.

4. An absorbent article according to claim 1, wherein

the absorbent article has a longitudinal direction, a lateral direction, and a thickness direction,

the fold line is aligned with the lateral direction of the absorbent article,

a border between a center section of the absorbent article in the longitudinal direction of the absorbent article and an end section of the absorbent article in the longitudinal direction of the absorbent article is at a position where the fold line is formed, and

a channel section is formed on the skin face side of the absorbent body material, the channel section extending from a portion positioned in the center section of the absorbent article in the longitudinal direction of the absorbent article to the end section of the absorbent article in the longitudinal direction of the absorbent article.

2. An absorbent article that is used in a state in which the absorbent article contacts a body of a wearer on a skin face side, comprising:

an absorbent article main unit;

an absorbent body material that is included in the absorbent article main unit and that includes an absorbent fiber and a super absorbent resin; and

interspersed sections that are included in the absorbent body material and that have a longitudinal direction, a lateral direction, and a thickness direction,

wherein

the absorbent body material has a longitudinal direction, a lateral direction, and a thickness direction,

the interspersed sections each include a densely gathered layer in which the super absorbent resin is densely gathered, and an empty layer that is adjacent to the densely gathered layer in the thickness direction of the absorbent body material, and

when the absorbent article is viewed from the skin face side, at least one of the interspersed sections overlaps the fold line in a state in which the longitudinal direction of the at least one of the interspersed sections is aligned with the fold line.

3. An absorbent article according to claim 2, wherein

the absorbent body material includes the absorbent fiber, and

the absorbent fiber is accumulated around the interspersed sections.