# US 2013/0152944 A1 · Skin Patch Sheet, Use Thereof, and Method for Attaching Skin Patch Sheet

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- Number: US 2013/0152944 A1
- Document ID: US20130152944A1
- Status: Published application
- Kind: A1
- Application number: 13/820,074
- Filed: 2011-08-31
- Published: 2013-06-20
- Earliest claimed: 2010-08-31
- Inventors: Masaki Okada; Akihito Takezaki; Takahiro Kajiwara
- Web page: https://patentgrep.com/patent/US20130152944A1

## CPC

- A61F 13/0259: {characterised by the release liner covering the skin adhering layer}
- A45D 44/12: Ear, face, or lip protectors (shaving masks A45D27/42)
- A45D 44/22: Face shaping devices, e.g. chin straps; Wrinkle removers, e.g. stretching the skin (skin stretchers for shaving A45D27/38)
- A61F 13/023: {wound covering film layers without a fluid retention layer}
- A61F 13/024: {the application or handling support layer being removable}
- A61K 9/703: {characterised by shape or structure; Details concerning release liner or backing; Refillable patches; User-activated patches}
- A61F 2013/00812: {perforate or breakable zones}
- 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)
- A45D: HAIRDRESSING OR SHAVING EQUIPMENT (wigs, toupees or the like A41G3/00, A41G5/00; hairdressers' chairs A47C1/04; hair cutting appliances, razors B26B); EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
- A61K: PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES (devices or methods specially adapted for bringing pharmaceutical products into particular physical or administering forms A61J3/00; chemical aspects of, or use of materials for deodorisation of air, for disinfection or sterilisation, or for bandages, dressings, absorbent pads or surgical articles A61L; soap compositions C11D)

## Abstract

Provided are a skin patch sheet including a carrier sheet, an adhesive patch and a release liner laminated in this order, in which (a) the adhesive patch includes two layers, namely, a backing and an adhesive layer having the same shape; (b) the carrier sheet is adjacent to the backing of the adhesive patch; (c) the skin patch sheet includes a grip section and a body section; (d) in the body section or the body section and grip section, the area of the release liner is larger than the area of the adhesive patch; (e) the boundary between the grip section and the body section is a slit line formed by a slit; and (f) the slit extends from the side of the release liner, penetrating into the adhesive patch, up to a depth in the range of greater than or equal to 20% and less than 50% of the thickness on the adhesive patch side of the carrier sheet; a skin patch sheet in which plural sheets of adhesive patches on which carrier sheets are laminated are formed in a parallel arrangement on a release liner; use of the skin patch sheet by attaching the skin patch sheet to the skin surface in order to prevent direct scratching of an affected site of the skin, or by attaching the skin patch sheet to the face for a lift-up effect; and a method for attaching the skin patch sheet.

## Claims

### Claim 1

A skin patch sheet comprising a carrier sheet, an adhesive patch and a release liner laminated in this order, wherein
(a) the adhesive patch comprises two layers of a backing and an adhesive layer having the same shape,
(b) the carrier sheet is adjacent to the backing of the adhesive patch,
(c) the skin patch sheet comprises a grip section and a body section,
(d) in the body section, the area of the release liner is larger than the area of the adhesive patch,
(e) the boundary between the grip section and the body section is a slit line formed by a slit, and
(f) the slit cuts into the skin patch sheet from the release liner side, penetrating into the adhesive patch, to a position at which at least half or more of the thickness of the carrier sheet on the adhesive patch is left uncut.

### Claim 2 (depends on 1)

The skin patch sheet according to claim 1, wherein plural sheets of the adhesive patches, each having a carrier sheet laminated thereon, are arranged in parallel on the release liner.

### Claim 3 (depends on 1)

The skin patch sheet according to claim 1, wherein plural sheets of the adhesive patches, each having a carrier sheet laminated thereon, are arranged in parallel on the release liner, and the outer periphery of the grip section is formed by being connected to the slit line.

### Claim 4 (depends on 1)

The skin patch sheet according to claim 1, wherein in the grip section, the area of the release liner is larger than the area of the adhesive patch.

### Claim 5 (depends on 1)

The skin patch sheet according to claim 1, wherein the grip section comprises only a carrier sheet.

### Claim 6 (depends on 1)

The skin patch sheet according to claim 1, wherein the slit of (f) does not penetrate into the release liner.

### Claim 7 (depends on 1)

The skin patch sheet according to claim 1, wherein the thickness of the backing is 1 to 10 μm.

### Claim 8 (depends on 1)

The skin patch sheet according to claim 1, wherein the backing is an elastomer film.

### Claim 9 (depends on 1)

The skin patch sheet according to claim 1, wherein the backing is a polyurethane elastomer film.

### Claim 10 (depends on 1)

The skin patch sheet according to claim 1, wherein the carrier sheet is a polyester film, a polyolefin film or a plastic laminated paper, and the release liner is a polyester film, a polyolefin film or a plastic laminated paper, all of which are release-treated.

### Claim 11 (depends on 1)

The skin patch sheet according to claim 1, wherein the adhesive patch has an approximately rectangular shape in which the ratio of lengths of the shorter edge and the longer edge is 1:2 to 1:9, and the slit line is formed in a direction parallel to the shorter edge at a distance in the range of ⅛ to ⅓ of the length of the longer edge of the adhesive patch.

### Claim 12 (depends on 11)

The skin patch sheet according to claim 11, wherein the vicinities of vertexes of the adhesive patch having an approximately rectangular shape are cut out to an approximately arc shape.

### Claim 13 (depends on 1)

The skin patch sheet according to claim 1, wherein the carrier sheet in the grip section forms an angle of 1° to 90° with respect to the extended direction of the surface of the body section, with the slit line serving as the fulcrum.

### Claim 14 (depends on 1)

The skin patch sheet according to claim 1, wherein the peeling force required to detach the carrier sheet from the backing is larger than the peeling force required to detach the release liner from the adhesive layer.

### Claim 15 (depends on 1)

The skin patch sheet according to claim 1, wherein a pharmacologically active substance is included in the adhesive layer.

### Claim 16 (depends on 1)

The skin patch sheet according to claim 1, wherein the adhesive patch is used by being attached to the face.

### Claim 17 (depends on 16)

The skin patch sheet according to claim 16, wherein the adhesive patch is used by being attached to the face for a lift-up effect.

### Claim 18 (depends on 1)

The skin patch sheet according to claim 1, wherein the skin patch sheet is used to prevent direct scratching of the skin.

### Claim 19 (depends on 1)

Use of the skin patch sheet according to claim 1, the adhesive patch being attached to the face for a lift-up effect.

### Claim 20 (depends on 1)

Use of the skin patch sheet according to claim 1, the adhesive patch being attached to the skin surface in order to prevent direct scratching of the skin.

### Claim 21 (depends on 1)

A method for attaching the adhesive patch of the skin patch sheet according to claim 1 to an object to be attached, the method comprising holding the grip section; detaching the adhesive patch of the body section having a carrier sheet laminated thereon, from the release liner; attaching the adhesive patch having a carrier sheet laminated thereon, to an object to be attached; and subsequently finishing the operation of attachment by detaching the grip section and the carrier sheet.

### Claim 22 (depends on 1)

The skin patch sheet according to claim 1, wherein the slit extends from the release liner side, penetrating into the adhesive patch, up to a depth in the range of greater than or equal to 20% and less than 50% of the thickness of the carrier sheet on the adhesive patch side.