# US 9,040,769 B2 · Absorbent article

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- Number: US 9,040,769 B2
- Document ID: US9040769B2
- Status: Granted
- Kind: B2
- Application number: 13/820,007
- Filed: 2011-08-31
- Published: 2013-06-27
- Granted: 2015-05-26
- Earliest claimed: 2010-08-31
- Assignees: Daio Paper Corporation
- Applicants: Ryoko Kurihara
- Inventors: Ryoko Kurihara
- Web page: https://patentgrep.com/patent/US9040769B2

## CPC

- A61F 13/538: characterised by specific fibre orientation or weave
- A61F 13/4756: {the means consisting of grooves, e.g. channels, depressions or embossments, resulting in a heterogeneous surface level}
- A61F 13/533: having discontinuous areas of compression
- A61F 2013/47281: {with internal collecting device}
- 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, such as a sanitary napkin and the like, constituted of an absorbing body between permeable (skin contact surface) and impermeable (skin non-contact surface) sheets, is provided with intermittent recess grooves formed in a longitudinal direction on the absorbent article on the skin non-contact surface side of the absorbing body, a plurality of laterally elongated peripheral embosses formed at intervals in the longitudinal direction of the absorbent article on absorbent body areas located peripherally to the recess grooves, and an absorbing body deficit portion formed at least between the recess grooves. Thus achieved are close contact with buttock cleavage and prevention of leakage to the rear.

## Claims

### Claim 1

An absorbent article, comprising
an absorbing body interposed between a permeable front-surface sheet, said front-surface sheet forming a skin contact surface, and an impermeable back-surface sheet, said back-surface sheet forming a skin non-contact surface,
intermittent recess grooves extending in a longitudinal direction in the widthwise central portion of said absorbent article on the skin non-contact surface side of said absorbing body,
a plurality of laterally elongated peripheral embosses formed at intervals in the longitudinal direction of said absorbent article on the skin non-contact surface side on absorbing body areas located peripherally to said recess grooves, and
an absorbing-body deficit portion formed at least between said recess grooves on the skin non-contact surface side.

### Claim 2 (depends on 1)

The absorbent article according to claim 1,
further comprising an absorbing body middle high portion extending in the longitudinal direction of said absorbent article and raised to the skin contact surface side provided at least on a lateral center part in a longitudinal rear of said absorbent article,
wherein said intermittent recess grooves are formed at said absorbing-body middle high portion,
wherein said plurality of laterally elongated peripheral embosses are located peripherally of said absorbing-body middle high portion,
wherein said absorbing-body deficit portion is a first absorbing-body deficit portion, and
further comprising a second absorbing-body deficit portion, which is formed at least between said recess grooves of the absorbing body at said absorbing-body middle high portion.

### Claim 3 (depends on 2)

The absorbent article according to claim 2, wherein
said absorbing-body deficit portion has a rectangular, diamond, wedge or triangular planar cross-section, wherein the planar cross-section is defined by an axis that is parallel to the longitudinal direction of the absorbent article.

### Claim 4 (depends on 1)

The absorbent article according to claim 1, further comprising
a first longitudinally extending emboss in a left rear portion and a second longitudinally extending emboss in a right rear portion of said absorbent article on the skin contact surface side of said absorbing body in a region corresponding to the buttocks of a wearer, and
at a position corresponding to said absorbing-body deficit portion, a fit emboss extending to a center part in the width direction of said absorbent article from said rear portion embosses.

### Claim 5 (depends on 4)

The absorbent article according to claim 4, wherein
said absorbing-body deficit portion changes shape in the thickness direction of the absorbing body.

### Claim 6

An absorbent article, comprising
an absorbing body interposed between a permeable front-surface sheet, said front-surface sheet forming a skin contact surface, and an impermeable back-surface sheet, said back-surface sheet forming a skin non-contact surface,
intermittent recess grooves extending in a longitudinal direction of said absorbent article on the skin non-contact surface side of said absorbing body,
a plurality of laterally elongated peripheral embosses formed at intervals in the longitudinal direction of said absorbent article on absorbing body areas located peripherally to said recess grooves,
an absorbing-body deficit portion formed at least between said recess grooves, and
an absorbing body middle high portion extending in the longitudinal direction of said absorbent article and raised to the skin contact surface side provided at least on a lateral center part in a longitudinal rear of said absorbent article,
wherein said intermittent recess grooves are formed at said absorbing-body middle high portion,
wherein said plurality of laterally elongated peripheral embosses are located peripherally of said absorbing-body middle high portion,
wherein said absorbing-body deficit portion is a first absorbing-body deficit portion, and
further comprising a second absorbing-body deficit portion, which is formed at least between said recess grooves of the absorbing body at said absorbing-body middle high portion.

### Claim 7 (depends on 6)

The absorbent article according to claim 6, wherein
said absorbing-body deficit portion has a rectangular, diamond, wedge or triangular planar cross-section, wherein the planar cross-section is defined by an axis that is parallel to the longitudinal direction of the absorbent article.

### Claim 8

An absorbent article, comprising
an absorbing body interposed between a permeable front-surface sheet, said front-surface sheet forming a skin contact surface, and an impermeable back-surface sheet, said back-surface sheet forming a skin non-contact surface,
intermittent recess grooves extending in a longitudinal direction of said absorbent article on the skin non-contact surface side of said absorbing body,
a plurality of laterally elongated peripheral embosses formed at intervals in the longitudinal direction of said absorbent article on absorbing body areas located peripherally to said recess grooves,
an absorbing-body deficit portion formed at least between said recess grooves,
a first longitudinally extending emboss in a left rear portion and a second longitudinally extending emboss in a right rear portion of said absorbent article on the skin contact surface side of said absorbing body in a region corresponding to the buttocks of a wearer, and
at a position corresponding to said absorbing-body deficit portion, a fit emboss extending to a center part in the width direction of said absorbent article from said rear portion embosses.

### Claim 9 (depends on 8)

The absorbent article according to claim 8, wherein
said absorbing-body deficit portion changes shape in the thickness direction of the absorbing body.