Thermosensitive adhesive label

By introducing multi-layer structure and through-hole design into the thermally sensitive self-adhesive label, combined with the oil film to reduce surface tension, the problem of label curling is solved and the bonding strength and appearance quality are improved.

CN223092514UActive Publication Date: 2025-07-11ZHEJIANG HUIKAI PRINTING CO LTD
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Patent Information

Application Number
CN202422190411.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-09-06
Publication Date
2025-07-11
Estimated Expiration
2034-09-06

AI Technical Summary

Technical Problem

Existing thermally sensitive self-adhesive labels are prone to curl during use, affecting the appearance and market attractiveness of the product.

Method used

A multi-layer structure design is adopted, including a first base paper, a second base paper, an oil film and an adhesive layer. A through hole is provided on the second base paper. The adhesive layer extends through the through hole to the side of the second base paper away from the adhesive layer. The surface tension is reduced in combination with the oil film to enhance the adhesive effect.

Benefits of technology

Effectively reduce label curling phenomenon, improve bonding strength, maintain product appearance integrity, and enhance market attractiveness.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to a thermosensitive self-adhesive label, relates to label paper technical field, including label paper component and release paper, label paper component includes first base paper, second base paper, oil film and bonding layer, bonding layer is provided on the release paper, the second base paper is provided on the bonding layer, the oil film is provided on the first base paper, and the oil film is provided on the second base paper. A plurality of through holes are formed in the second base paper, the bonding layer extends to the face, away from the bonding layer, of the second base paper along the through holes, the first base paper is arranged on the second base paper, and the oil film is arranged on the first base paper. The oil film can be adopted, the through hole is formed in the second base paper, and the bonding layer extends to the side, away from the bonding layer, of the second base paper through the through hole in the second base paper, so that the problem of label warping is solved, and the probability that the overall appearance is damaged and the market attraction and brand image of a product are affected due to the warping problem is reduced.
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Description

Technical Field

[0001] This application relates to the technical field of label paper, and particularly to a thermal self-adhesive label. Background Art

[0002] A thermal self-adhesive label is a special label material, which mainly consists of three layers: the bottom layer is a paper base, the middle layer is a thermal coating, and the top layer is a protective layer. When this label encounters a heat source, the thermal coating will undergo a chemical reaction due to heat, thereby showing a color and forming the required pattern or text.

[0003] Currently, the Chinese utility model patent application with the publication date of June 21, 2024 and the publication number of CN 221200643U provides a self-adhesive label, which includes a base layer, a protective layer, an anti-corrosion layer, an adhesive layer, and a release layer; the protective layer includes a tear-resistant layer, a flame-retardant layer, and a waterproof layer; the tear-resistant layer is arranged on the top of the base layer; the flame-retardant layer is arranged on the top of the tear-resistant layer; the waterproof layer is arranged on the top of the flame-retardant layer; the anti-corrosion layer is arranged on the top of the waterproof layer; the adhesive layer is arranged on the bottom of the base layer; the release layer is arranged on the bottom of the adhesive layer.

[0004] In the related art, the thermal self-adhesive label cannot achieve the effect of not warping during the use of the label paper. In product packaging, the warping of the label will damage the overall appearance and affect the market attractiveness and brand image of the product.

[0005] Therefore, it is necessary to provide a thermal self-adhesive label to solve the above problems. Summary of the Utility Model

[0006] To conveniently improve the technical problem that the label paper in the related art can achieve the effect of not warping during use, the embodiment of this application provides a thermal self-adhesive label, which includes a label paper assembly and a release paper. The label paper assembly includes a first base paper, a second base paper, an oil film, and an adhesive layer. The adhesive layer is arranged on the release paper, the second base paper is arranged on the adhesive layer, a plurality of through holes are formed in the second base paper, the adhesive layer extends along the through holes to the side of the second base paper away from the adhesive layer, the first base paper is arranged on the second base paper, and the oil film is arranged on the first base paper.

[0007] The thermal self-adhesive label provided by the embodiment of this application can, when the label is used on an object, reduce the surface tension of the surface of the object to be pasted through the oil film on the surface of the label, making it easier for the adhesive to bond with the surface, thereby reducing the possibility of warping. At the same time, by forming through holes in the second base paper and the adhesive layer extending through the through holes in the second base paper to the side of the second base paper away from the adhesive layer, the adhesive layer plays an effect of strengthening the adhesion, expanding the adhesion area, improving the adhesion effect, and reducing the probability of warping.

[0008] In the technical solutions described above in the embodiments of the present application, there are at least the following technical effects: When a thermal self-adhesive label is in use, at high temperatures, an oil film is adopted and through holes are provided in the second base paper. The adhesive layer extends to the side of the second base paper away from the adhesive layer through the through holes in the second base paper, reducing the problem of label warping and reducing the probability of damaging the overall appearance due to warping problems and affecting the market attractiveness and brand image of the product.

[0009] In some embodiments, an anti-tearing layer is provided on the second base paper, a pulling paper is provided on the anti-tearing layer, and the pulling paper extends out of the ends of the first base paper and the anti-tearing layer.

[0010] In some embodiments, an anti-counterfeiting coating is provided on the first base paper.

[0011] In some embodiments, a thermal protection coating is provided on the anti-counterfeiting coating.

[0012] In some embodiments, first easy-tearing lines are provided on the outer sides of both ends of the label paper assembly on the surface of the release paper, and the first easy-tearing lines are located below the pulling paper.

[0013] In some embodiments, second easy-tearing lines are provided on the pulling paper at the end face of the first base paper close to the pulling paper. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings in the following description are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0015] Figure 1 It is a three-dimensional structure diagram of the thermal self-adhesive label provided by the embodiment of the present application;

[0016] Figure 2 It is a cross-sectional structure diagram of the thermal self-adhesive label provided by the embodiment of the present application;

[0017] Figure 3 is Figure 2 the enlarged view at A in

[0018] Figure 4 It is a three-dimensional structure diagram of the second base paper in the thermal self-adhesive label provided by the embodiment of the present application.

[0019] Among them, the reference numerals in the drawings are as follows:

[0020] 1. Label paper assembly; 11. First base paper; 12. Second base paper; 13. Oil film; 14. Thermal protection coating; 15. Anti-counterfeiting coating; 16. Anti-tearing layer; 17. Adhesive layer; 2. Release paper; 3. Pull paper; 4. First easy tear line; 5. Second easy tear line. Detailed implementation manners

[0021] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer and more understandable, the present application will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the technical field to which the present application belongs; the terms used herein are only for the purpose of describing specific embodiments and do not limit the present application. The terms "comprising" and "having" and any variations thereof in the specification and claims of the present application and the above accompanying drawings are intended to cover non-exclusive inclusion.

[0023] Thermal self-adhesive label is a special label material, which mainly consists of three layers: the bottom layer is the paper base, the middle layer is the thermal coating, and the top layer is the protective layer. When this label encounters a heat source, the thermal coating will undergo a chemical reaction due to heat, thereby showing a color and forming the required pattern or text.

[0024] Currently, the Chinese utility model patent application with a publication date of June 21, 2024 and a publication number of CN 221200643U provides a self-adhesive label, including a base layer, a protective layer, an anti-corrosion layer, an adhesive layer and a release layer; the protective layer includes an anti-tearing layer, a flame-retardant layer and a waterproof layer; the anti-tearing layer is arranged on the top of the base layer; the flame-retardant layer is arranged on the top of the anti-tearing layer; the waterproof layer is arranged on the top of the flame-retardant layer; the anti-corrosion layer is arranged on the top of the waterproof layer; the adhesive layer is arranged on the bottom of the base layer; the release layer is arranged on the bottom of the adhesive layer.

[0025] Based on this, in order to improve the problem in the related technology that the label paper cannot achieve the effect of not warping during use, and on the product packaging, label warping will damage the overall appearance and affect the market attractiveness and brand image of the product, the embodiments of the present application provide the following solutions.

[0026] Please refer to Figure 1 and Figure 2, embodiments of the present application provide a thermal self-adhesive label. The thermal self-adhesive label includes a label paper assembly 1 and a release paper 2. The label paper assembly 1 includes a first base paper 11, a second base paper 12, an oil film 13, and an adhesive layer 17. The adhesive layer 17 is disposed on the release paper 2. The second base paper 12 is disposed on the adhesive layer 17. A plurality of through holes are formed in the second base paper 12. The adhesive layer 17 extends along the through holes to the side of the second base paper 12 away from the adhesive layer 17. The first base paper 11 is disposed on the second base paper 12. The oil film 13 is disposed on the first base paper 11.

[0027] With such a setting, the oil film 13 adheres to the outer surface of the label paper assembly 1. The adhesive layer 17 adheres to the release paper 2. The second base paper 12 is adhesively bonded to the adhesive layer 17 by an adhesive. A plurality of through holes are formed in the second base paper 12. The adhesive layer 17 extends along the through holes to the side of the second base paper 12 away from the adhesive layer 17 by an adhesive. The oil film 13 on the label surface can reduce the surface tension of the surface of the object to be pasted, making it easier for the adhesive to bond with the surface, thereby reducing the possibility of warping. At the same time, by providing through holes in the second base paper 12 and the adhesive layer 17 extending through the through holes in the second base paper 12 to the side of the second base paper 12 away from the adhesive layer 17, the adhesive layer 17 plays an effect of strengthening the adhesion, expanding the adhesion area, improving the adhesion effect, and reducing the probability of warping.

[0028] In some embodiments, please also refer to Figures 1 to 3 , an anti-tearing layer 16 is provided on the second base paper 12. A pulling paper 3 is provided on the anti-tearing layer 16, and the pulling paper 3 extends out of the ends of the first base paper 11 and the anti-tearing layer 16. An anti-counterfeiting coating 15 is provided on the first base paper 11. A thermal protection coating 14 is provided on the anti-counterfeiting coating 15. First tear lines 4 are formed on the surface of the release paper 2 outside both ends of the label paper assembly 1, and the first tear lines 4 are located below the pulling paper 3. Second tear lines 5 are provided on the pulling paper 3 at the end face of the first base paper 11 close to the pulling paper 3.

[0029] Set in this way, the tear-resistant layer 16 is attached to the second base paper 12 by opening a plurality of through holes in the second base paper 12. The adhesive layer 17 extends along the through holes to the side of the second base paper 12 away from the adhesive layer 17 through self-adhesive, and the self-adhesive makes the tear-resistant layer 16 adhere to the second base paper 12. The tear-resistant layer 16 can significantly improve the physical strength of the label, making it not easily torn or damaged during daily use, especially suitable for labels that need to be frequently handled or used in harsh environments. The pulling paper 3 extends out of the ends of the first base paper 11 and the tear-resistant layer 16, facilitating the tearing of the label from the release paper 2. The pulling paper 3 is provided with a second easy-tear line 5 at the end face of the first base paper 11 close to the pulling paper 3, facilitating the tearing of the pulling paper 3 through the second easy-tear line 5 after the label paper is pasted at the required position, reducing the probability of warping caused by the pulling paper 3. The anti-counterfeiting coating 15 is attached to the first base paper 11. The anti-counterfeiting coating 15 usually has a unique visual effect, such as color change, flashing or showing special patterns under specific light, facilitating users to quickly identify the authenticity during use. The thermal protection coating 14 is provided on the anti-counterfeiting coating 15. The thermal protection coating 14 can prevent the printed content on the label from fading or disappearing due to temperature changes. By protecting the printed content, the thermal protection coating 14 helps to extend the service life of the label and ensure the long-term readability of the information. The first easy-tear line 4 is opened on the surface of the release paper 2 outside both ends of the label paper assembly 1, facilitating users to separate a single label paper. Through the first easy-tear line 4, the individual label papers are separated.

[0030] The above are only the preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A thermal self-adhesive label, characterized in that: It includes a label paper component (1) and a release paper (2). The label paper component (1) includes a first base paper (11), a second base paper (12), an oil film (13), and an adhesive layer (17). The adhesive layer (17) is disposed on the release paper (2), the second base paper (12) is disposed on the adhesive layer (17), a plurality of through holes are formed in the second base paper (12), and the adhesive layer (17) extends along the through holes to the side of the second base paper (12) away from the adhesive layer (17). The first base paper (11) is disposed on the second base paper (12), and the oil film (13) is disposed on the first base paper (11).

2. The thermal self-adhesive label according to claim 1, characterized in that: An anti-tearing layer (16) is disposed on the second base paper (12), a pulling paper (3) is disposed on the anti-tearing layer (16), and the pulling paper (3) extends out of the ends of the first base paper (11) and the anti-tearing layer (16).

3. The thermal self-adhesive label according to claim 2, characterized in that: An anti-counterfeiting coating (15) is disposed on the first base paper (11).

4. A thermal self-adhesive label according to claim 3, characterized in that: A thermal protection coating (14) is disposed on the anti-counterfeiting coating (15).

5. A thermal self-adhesive label according to claim 4, characterized in that: First tear lines (4) are formed on the surface of the release paper (2) outside both ends of the label paper component (1), and the first tear lines (4) are located below the pulling paper (3).

6. A thermal self-adhesive label according to claim 5, characterized in that: Second tear lines (5) are formed on the pulling paper (3) at the end face of the first base paper (11) close to the pulling paper (3).

Citation Information

Patent Citations

  • Adhesive label

    CN221200643U