ABSORBENT ARTICLE

• US 20110137276A1
• Filed: 01/27/2009
• Published: 06/09/2011
• Est. Priority Date: 02/25/2008
• Status: Abandoned Application

• Current Assignee: Unicharm Corporation
• Original Assignee: Unicharm Corporation
• Inventors: Yoshikawa, Megumi
• Application Number:
  US12/919,420
• Publication Number:
  US 20110137276A1
• Time in Patent Office: Days
• US Class Current: 604/378
• CPC Class Codes: A61F 13/4704 having preferential bending zones, e.g. fold lines or grooves
• CPC Class Codes: A61F 13/4756 the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level
• 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
• CPC Class Codes: A61F 13/536 having discontinuous areas of compression

Abstract

An absorbent article has a liquid permeable top sheet (5) making contact with the wearer'"'"'s skin surface, a liquid impermeable back sheet (6) making contact with the surface of underwear, and an absorber (7) mounted between the top sheet (5) and the back sheet (6) and capable of absorbing a bodily liquid. The an absorber (7) has a projected portion (2) which is a portion formed on a lower layer absorber (8) by overlaying an upper layer absorber (9) on the lower layer absorber (8), and the upper layer absorber (9) has smaller dimensions in the longitudinal and lateral directions than the lower layer absorber (8). A first recessed portion (3) is provided around the projected portion (2) so as to surround the projected portion (2). The first recessed portion (3) is formed by a continued portion (3a) and an intermittent portion (4).

Claims

1. An absorbent article, comprising:

a top sheet being liquid permeable and adopted to contact a skin surface;

a back sheet being liquid impermeable and adopted to contact an undergarment surface; and

an absorber provided between the top sheet and the back sheet, being able to absorb a body fluid, and including a projected portion formed of an upper layer absorber and a lower layer absorber, while the upper layer absorber being smaller than the lower layer absorber in a longitudinal direction and a width direction of the absorbent article is laminated on the lower layer absorber, and a first recessed portion provided in a circumference of the projected portion so as to surround the projected portion, wherein

the first recessed portion includes a continued portion in which the first recessed portion is continued and an intermittent portion in which the first recessed portion is discontinued.

2. The absorbent article according to claim 1, wherein

the first recessed portion is formed in a substantially symmetric position with respect to a center axis in the longitudinal direction,

the first recessed portion is continued on one side with respect to the center axis, and the first recessed portion includes the intermittent portion on an other side with respect to the center axis.

3. The absorbent article according to claim 1, wherein

the first recessed portion is formed in a position substantially symmetric with respect to a center axis in the longitudinal direction, and

the intermittent portion is respectively formed at both sides of the center axis.

4. The absorbent article according to claim 3, further comprising,

a second recessed portion provided in a region outside the first recessed portion, wherein

the second recessed portion is formed continuously or discontinuously from a vicinity of the intermittent portion to an opposite side of the intermittent portion with respect to the center axis in the width direction.

5. The absorbent article according to claim 4, wherein

the second recessed portion includes a deep portion and a deepest portion,

a depth of the deepest portion is different from a depth of the deep portion, and

the deepest portion is separately formed in a plurality of places.

6. The absorbent article according to claim 5, wherein

the second recessed portion is arranged toward an edge in the longitudinal direction.

7. The absorbent article according to claim 4, wherein

the second recessed portion is a groove provided on an edge side in the longitudinal direction, and the groove is arranged to extend from an intermittent portion side to an opposite side of the intermittent portion in the width direction, with respect to the center axis in the longitudinal direction.

8. The absorbent article according to claim 1, further comprising:

a flat portion provided in an area surrounded by the first recessed portion and adjacent to the projected portion, wherein

a height of the flat portion is lower than a height of the projected portion.