# US 12,183,221 B2 · Adhesive label for pet bottles and method of forming the label

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- Number: US 12,183,221 B2
- Document ID: US12183221B2
- Status: Granted
- Kind: B2
- Application number: 18/328,383
- Filed: 2023-06-02
- Published: 2024-09-19
- Granted: 2024-12-31
- Earliest claimed: 2023-03-16
- Assignees: Dongil Chemical Co., Ltd.
- Applicants: Dongil Chemical Co., Ltd.
- Inventors: Won Seok Oh
- Web page: https://patentgrep.com/patent/US12183221B2

## CPC

- G09F 3/02: Forms or constructions (layered products B32B)
- G09F 3/10: by an adhesive layer
- G09F 2003/0222: {Features for removal or adhesion, e.g. tabs}
- G09F 2003/0229: {Carrier roll}
- G09F 2003/0241: {Repositionable or pressure sensitive adhesive}
- G09F 2003/0251: {Sleeve shaped label, i.e. wrapped around a device}
- G09F 2003/0273: {Labels for bottles, flasks}
- G09F: DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS

## Abstract

The present invention relates to a label made of a synthetic resin film in a roll-type, and disclosed is a label 20 coated with a pressure sensitive adhesive, wherein an adhesive portion 21 of a certain width coated with the pressure sensitive adhesive is formed at the intervals of one label which is to be attached to a PET bottle, and wherein the adhesive portion 21 consists of a front end adhesive portion 21a which is attached to the PET bottle and a rear end adhesive portion 21b which is attached to overlap on the front end adhesive portion 21a, and cutting is made at a cutting line 22 between the front end adhesive portion and the rear end adhesive portion 21b. As the synthetic resin film, a general non-shrinkable film as well as a heat-shrinkable film may be used.

## Claims

### Claim 1

A method of attaching a label to a PET bottle comprising the steps of:
attaching a front end adhesive portion 21a of a roll-type label made of synthetic resin film to a PET bottle;
rotating the PET bottle once so that a rear end adhesive portion 21b attaches to overlap the front end adhesive portion 21a; and
cutting the label 20 at a cutting line 22 between the front end adhesive portion 21a and the rear end adhesive portion 21b,
wherein a pressure sensitive adhesive is applied to the front end adhesive portion 21a and the rear end adhesive portion 21b.

### Claim 2 (depends on 1)

The method according to claim 1, wherein a non-adhesive portion 21c without a pressure sensitive adhesive is formed at an upper portion of the rear end adhesive portion 21b to facilitate label removal.

### Claim 3 (depends on 2)

The method of claim 2, wherein the synthetic resin film is a non-shrinkable film or a shrinkable film.

### Claim 4 (depends on 3)

The method of claim 3, further comprising the step of heat-shrinking the attached label by attaching the label to the PET bottle and then heating it in a heating chamber when the synthetic resin film is a shrinkable film.

### Claim 5 (depends on 4)

The method of claim 4, wherein the heat-shrinking step is performed within 1 second in a heating chamber at 70-80° C.