# US 10,307,304 B2 · Absorbent article

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- Number: US 10,307,304 B2
- Document ID: US10307304B2
- Status: Granted
- Kind: B2
- Application number: 15/316,277
- Filed: 2015-06-11
- Published: 2017-05-25
- Granted: 2019-06-04
- Earliest claimed: 2014-06-13
- Assignees: Daio Paper Corporation
- Applicants: Daio Paper Corporation
- Inventors: Ryoko Kurihara
- Web page: https://patentgrep.com/patent/US10307304B2

## CPC

- A61F 13/4704: {having preferential bending zones, e.g. fold lines or grooves}
- A61F 13/51108: {the top sheet having corrugations or embossments having one axis relatively longer than the other axis, e.g. forming channels or grooves in a longitudinal direction}
- A61F 13/15: Absorbent pads, e.g. sanitary towels, swabs or tampons for external or internal application to the body; Supporting or fastening means therefor; Tampon applicators
- A61F 13/4756: {the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level}
- A61F 13/511: Topsheet, i.e. the permeable cover or layer facing the skin
- A61F 13/51104: {the top sheet having a three-dimensional cross-section, e.g. corrugations, embossments, recesses or projections}
- A61F 13/539: characterised by the connection of the absorbent layers with each other or with the outer layers
- A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C)

## Abstract

An absorbent article (1) includes a permeable front-side sheet (3), a back-side sheet (2), an absorber (4) disposed between the permeable front-side sheet and the back-side sheet, and an embossment (10) formed in the front surface of the permeable front-side sheet (3). The embossment (10) includes bent parts (30) at which an embossment direction abruptly changes. An outer edge of each of the bent parts (30) is an angled part (31), and an inner edge of each of the bent parts (30) is a curved part (32).

## Claims

### Claim 1

An absorbent article, comprising:
a permeable front-side sheet;
a back-side sheet;
an absorber disposed between the permeable front-side sheet and the back-side sheet; and
an embossment formed in a front surface of the permeable front-side sheet, wherein
the embossment includes bent parts at which an embossment direction abruptly changes;
each of the bent parts protrudes inward or outward in a width direction of the absorbent article;
an outer edge, which faces in a direction of the protrusion, of each of the bent parts is an angled part; and
an inner edge, which faces in a direction opposite the direction of the protrusion, of each of the bent parts is a curved part.

### Claim 2 (depends on 1)

The absorbent article as claimed in claim 1, wherein the bent parts include a bent part protruding inward in the width direction of the absorbent article and a bent part protruding outward in the width direction that are sequentially arranged in a longitudinal direction of the absorbent article.

### Claim 3 (depends on 1)

The absorbent article as claimed in claim 1, wherein the bent parts include at least three bent parts that are sequentially arranged in a longitudinal direction of the absorbent article such that a bent part protruding inward in the width direction of the absorbent article and a bent part protruding outward in the width direction are alternately arranged to form a zigzag shape.

### Claim 4 (depends on 1)

The absorbent article as claimed in claim 1, wherein the embossment is formed such that outer edges of all of the bent parts are angled parts and inner edges of all of the bent parts are curved parts.

### Claim 5 (depends on 1)

The absorbent article as claimed in claim 1, wherein
high-compression parts are discretely arranged on a bottom of the embossment; and
an area of each of the high-compression parts disposed in the bent parts is greater than an area of each of the high-compression parts disposed in other positions.

### Claim 6 (depends on 1)

The absorbent article as claimed in claim 1, wherein
high-compression parts are discretely arranged on a bottom of the embossment; and
the high-compression parts are arranged discretely in an embossed groove such that at least one high-compression part is present on a line drawn in a longitudinal direction of the absorbent article.