Double-layer thermal shrinkage sleeve label

By using recycled PETG laser film in the double-layer heat shrink sleeve, the problem of insufficient tear resistance is solved, achieving stronger tear resistance and good light blocking properties, thus improving the overall durability of the sleeve.

CN223763977UActive Publication Date: 2026-01-06TIANJIN TINGZHENG PRINT & PACKING MATERIAL CO LTD
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Patent Information

Application Number
CN202423304605.8
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-31
Publication Date
2026-01-06
Estimated Expiration
2034-12-31

AI Technical Summary

Technical Problem

Existing double-layer heat shrink sleeves have poor tear resistance, especially due to the insufficient tear resistance of the milky white PETG film.

Method used

Recycled PETG laser film is used to replace the milky white PETG film to form a double-layer heat shrink sleeve structure, including a first recycled PETG film layer, an ink printing layer, an adhesive layer, and a second recycled PETG laser film layer. The metal foil layer of the PETG laser film is used to improve tear resistance.

Benefits of technology

It improves the tear resistance of the double-layer heat shrink sleeve while maintaining good light blocking properties, thus enhancing the overall durability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a double-layer thermal shrinkage sleeve label which comprises a first regenerated PETG film layer, an ink printing layer, an adhesive layer and a second regenerated PETG laser film layer, the adhesive layer is arranged between the first regenerated PETG film layer and the second regenerated PETG laser film layer, the ink printing layer is arranged on the first regenerated PETG film layer, and the adhesive layer is arranged on the second regenerated PETG laser film layer. And the ink printing film is positioned between the first regenerated PETG film layer and the adhesive layer. The shrink label has the following beneficial effects that by adopting the PETG laser film, the whole shrink label is ensured to have good light resistance and relatively better tear resistance.
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Description

Technical Field

[0001] This utility model relates to the field of packaging materials, and in particular to a double-layer heat shrink sleeve label. Background Technology

[0002] Double-layer shrink sleeves are a commonly used packaging auxiliary product. Patent publication CN221841552U discloses a double-layer heat shrink sleeve. In this double-layer heat shrink sleeve, both the shrink film and the bottom film are made of PETG film. In order to ensure the opacity of the entire shrink label, the bottom film is made of milky white PETG film, and the shrink film is made of transparent PETG film. Since both milky white PETG film and transparent PETG film have poor tear resistance, the tear resistance of this type of shrink sleeve is relatively poor. Utility Model Content

[0003] To address the aforementioned problems, this invention proposes a double-layer heat-shrinkable sleeve label. By employing PETG laser film, the entire shrink sleeve label is ensured to have good light-blocking properties and relatively better tear resistance.

[0004] The technical solution adopted by this utility model is as follows:

[0005] A double-layer heat-shrinkable sleeve includes a first recycled PETG film layer, an ink printing layer, an adhesive layer, and a second recycled PETG holographic film layer. The adhesive layer is disposed between the first recycled PETG film layer and the second recycled PETG holographic film layer. The ink printing layer is disposed on the first recycled PETG film layer, and the ink printing film is located between the first recycled PETG film layer and the adhesive layer.

[0006] In this type of heat shrink sleeve, both the first recycled PETG film layer and the second recycled PETG holographic film layer are made from recycled PETG material, making it more environmentally friendly. In this type of shrink sleeve, the second recycled PETG holographic film is used to replace the milky white PETG film. The PETG holographic film still has good light blocking properties compared to the milky white PETG film, and at the same time, the PETG holographic film has stronger tear resistance compared to the milky white PETG film. Therefore, this type of double-layer heat shrink sleeve has relatively stronger tear resistance.

[0007] In summary, the use of PETG laser film in this type of shrink sleeve ensures that the entire shrink sleeve has good light blocking properties and relatively better tear resistance.

[0008] Optionally, the thickness of the first recycled PETG membrane layer is 20 μm.

[0009] Optionally, the thickness of the ink printing layer is 2µm.

[0010] Optionally, the thickness of the adhesive layer is 3 μm.

[0011] Optionally, the thickness of the second recycled PETG laser film layer is 25µm to 30µm.

[0012] The beneficial effects of this invention are: by using PETG laser film, the entire shrink sleeve label is ensured to have good light blocking properties and relatively better tear resistance. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0014] Figure 1 This is a simplified schematic diagram of the structure of a double-layer heat shrink sleeve.

[0015] The figures are labeled as follows: 1. First recycled PETG film layer; 2. Ink printing layer; 3. Adhesive layer; 4. Second recycled PETG film layer. Detailed Implementation

[0016] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0017] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0018] In the description of this application, it should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. For ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following drawings denote similar items; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0019] As attached Figure 1 As shown, a double-layer heat-shrinkable sleeve includes a first recycled PETG film layer 1, an ink printing layer 2, an adhesive layer 3, and a second recycled PETG holographic film layer. The adhesive layer 3 is disposed between the first recycled PETG film layer 1 and the second recycled PETG holographic film layer. The ink printing layer 2 is disposed on the first recycled PETG film layer 1, and the ink printing film is located between the first recycled PETG film layer 1 and the adhesive layer 3.

[0020] In this type of heat shrink sleeve, both the first recycled PETG film layer 1 and the second recycled PETG holographic film layer are made from recycled PETG material, making them more environmentally friendly. In this type of shrink sleeve, the second recycled PETG holographic film is used to replace the milky white PETG film. Since the PETG holographic film is coated with a layer of metal foil, it still has good light blocking properties compared to the milky white PETG film. At the same time, the PETG holographic film has stronger tear resistance than the milky white PETG film. Therefore, this type of double-layer heat shrink sleeve has relatively stronger tear resistance.

[0021] In summary, the use of PETG laser film in this type of shrink sleeve ensures that the entire shrink sleeve has good light blocking properties and relatively better tear resistance.

[0022] As attached Figure 1 As shown, the thickness of the first recycled PETG membrane layer 1 is 20 μm.

[0023] As attached Figure 1 As shown, the thickness of ink printing layer 2 is 2µm.

[0024] As attached Figure 1 As shown, the thickness of adhesive layer 3 is 3 μm.

[0025] Specifically, in this embodiment, the adhesive used in adhesive layer 3 is a polyurethane adhesive.

[0026] Specifically, in this embodiment, the first recycled PETG membrane can be a recycled membrane of model rPETG2 produced by Henan Yinjinda New Material Co., Ltd., and the second recycled PETG laser membrane can be a recycled membrane of model rPETG2X produced by Henan Yinjinda New Material Co., Ltd.

[0027] As attached Figure 1 As shown, the thickness of the second recycled PETG laser film layer is 25um~30um.

[0028] The above-described embodiments only illustrate some aspects of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A dual layer heat shrink sleeve label characterized by, The first recycled PETG film layer, the ink printing layer, the adhesive layer and the second recycled PETG laser film layer are included, the adhesive layer is arranged between the first recycled PETG film layer and the second recycled PETG laser film layer, the ink printing layer is arranged on the first recycled PETG film layer, and the ink printing film is located between the first recycled PETG film layer and the adhesive layer.

2. A dual layer heat shrink sleeve label according to claim 1, wherein, The thickness of the first recycled PETG film layer is 20 um.

3. A dual layer heat shrink sleeve label according to claim 1, wherein, The thickness of the ink printing layer is 2 um.

4. A dual layer heat shrink sleeve label according to claim 1, wherein, The thickness of the adhesive layer is 3 um.

5. A dual layer heat shrink sleeve label according to claim 1, wherein, The thickness of the second recycled PETG laser film layer is 25 um to 30 um.

Citation Information

Patent Citations

  • Composite shrinkage sleeve label

    CN221841552U