Heat-shrinkable label

Abstract

The utility model discloses a thermal shrinkage label, including printing PETG film layer, inner printing ink layer, first barrier PETG film layer, PETG core film layer, second barrier PETG film layer and back glue layer, PETG core film layer is provided between first barrier PETG film layer and second barrier PETG film layer, inner printing ink layer is provided between printing PETG film layer and first barrier PETG film layer, back glue layer is provided between printing PETG film layer and second barrier PETG film layer, back glue layer is provided between printing PETG film layer and second barrier PETG film layer, back glue layer is provided between printing PETG film layer and second barrier PETG film layer, back glue layer is provided between printing PETG film layer and second barrier PETG film layer. The gum layer is arranged on one side of the second barrier PETG film layer, and the gum layer and the PETG core film layer are arranged on the two sides of the second barrier PETG film layer respectively. Compared with the prior art, the heat-shrinkable label has the following beneficial effects that the back adhesive layer is arranged on the second barrier PETG film layer and is used for being adhered to an attached object, so that the whole heat-shrinkable label can be stably attached to the attached object by virtue of the adhesion effect of the back adhesive layer.

Description

Technical Field

[0001] The utility model relates to the field of packaging materials, in particular to a heat shrink label. Background Art

[0002] Shrink labels are a commonly used bottle attachment. Patent publication CN111739409A discloses a shrink label based on PETG film. This shrink label has several layers of coating applied to the PETG film, which is then attached to the bottle by heating. The PETG film adheres closely to the outer wall of the bottle. This shrink label relies on the PETG film to adhere closely to the outer wall of the bottle. There is no adhesion between the shrink label and the bottle wall, resulting in relatively poor adhesion strength to the bottle. Utility Model Content

[0003] In response to the above problems, the utility model proposes a heat shrink label. This label has an adhesive layer provided on the second barrier PETG film layer. The adhesive layer is used to adhere to the adhered object. With the help of the adhesive effect of the adhesive layer, it can be ensured that the entire heat shrink label is stably adhered to the adhered object.

[0004] The technical solutions adopted by this utility model are as follows:

[0005] A heat shrink label comprises a printing PETG film layer, a backing ink layer, a first barrier PETG film layer, a PETG core film layer, a second barrier PETG film layer and an adhesive layer, wherein the PETG core film layer is arranged between the first barrier PETG film layer and the second barrier PETG film layer, the backing ink layer is arranged between the printing PETG film layer and the first barrier PETG film layer, the adhesive layer is arranged on one side of the second barrier PETG film layer, and the backing layer and the PETG core film layer are respectively located on both sides of the second barrier PETG film layer.

[0006] In this heat shrink label, a back adhesive layer is provided on the second barrier PETG film layer. The back adhesive layer is used to adhere to the attached object (the attached object includes but is not limited to the bottle body). With the help of the adhesive effect of the back adhesive layer, it can be ensured that the entire heat shrink label is stably attached to the attached object.

[0007] In this type of label, the back printing ink layer is located between the printing PETG film layer and the first barrier PETG film layer, which can provide good protection for the back printing ink layer.

[0008] In this type of label, the first barrier PETG film layer and the second barrier PETG film layer are arranged on both sides of the PETG core film layer.

[0009] The first barrier PETG film layer and the second barrier PETG film layer have stronger light blocking performance than the PETG core film layer, and the PETG core film layer has better elongation performance than the first barrier PETG film layer and the second barrier PETG film layer.

[0010] Optionally, it further includes a surface-printed frosted ink layer, which is arranged on one side of the printing PETG film layer, and the surface-printed frosted ink layer and the back-printed ink layer are respectively located on both sides of the printing PETG film layer.

[0011] The purpose of setting a surface-printed frosted ink layer on one side of the printed PETG film layer is to give the entire label a frosted feel.

[0012] Optionally, the thickness of the surface-printed frosted ink layer is 1 um, and the thickness of the back-printed ink layer is 0.5 um.

[0013] Optionally, a polyurethane adhesive layer is further included, and the polyurethane adhesive layer is arranged between the back printing ink layer and the first barrier PETG film layer.

[0014] The function of the polyurethane adhesive layer is to play a bonding role and improve the adhesion strength between the inner printing ink layer (and the printing PETG film layer) and the first barrier PETG film layer.

[0015] Optionally, the thickness of the back adhesive layer is 3 μm.

[0016] Optionally, the thickness of the printed PETG film layer is 15 μm.

[0017] Optionally, the thickness of the first barrier PETG film layer is 5 um, and the thickness of the second barrier PETG film layer is 5 um.

[0018] Optionally, the thickness of the PETG core film layer is 15 μm.

[0019] The beneficial effect of the utility model is that: by arranging the adhesive layer on the second barrier PETG film layer, the adhesive layer is used to adhere to the adhered object, and with the help of the adhesive effect of the adhesive layer, it can be ensured that the entire heat shrink label is stably adhered to the adhered object. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the structure of a heat shrink label.

[0022] The reference numerals in the figure are: 1, surface printing frosted ink layer; 2, printing PETG film layer; 3, back printing ink layer; 4, polyurethane adhesive layer; 501, first barrier PETG film layer; 502, PETG core film layer; 503, second barrier PETG film layer; 6, adhesive layer. DETAILED DESCRIPTION

[0023] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0024] In the following description, many specific details are set forth to facilitate 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 may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0025] In the description of this application, it should be noted that the terms used herein are only for the purpose of describing specific embodiments and are 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 according to the actual proportional relationship. Technologies, methods and equipment known to ordinary technicians in the relevant fields may not be discussed in detail, but where appropriate, the technologies, methods and equipment should be considered as part of the authorization specification. In all examples shown and discussed here, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further discussed in subsequent figures.

[0026] As attached Figure 1 As shown, a heat shrink label includes a printing PETG film layer 2, a backing ink layer 3, a first barrier PETG film layer 501, a PETG core film layer 502, a second barrier PETG film layer 503 and an adhesive layer 6. The PETG core film layer 502 is arranged between the first barrier PETG film layer 501 and the second barrier PETG film layer 503, the backing ink layer 3 is arranged between the printing PETG film layer 2 and the first barrier PETG film layer 501, the adhesive layer 6 is arranged on one side of the second barrier PETG film layer 503, and the backing adhesive layer 6 and the PETG core film layer 502 are on both sides of the second barrier PETG film layer 503 respectively.

[0027] In this heat shrink label, a back adhesive layer 6 is provided on the second barrier PETG film layer 503. The back adhesive layer 6 is used to adhere to the attached object (the attached object includes but is not limited to the bottle body). With the help of the adhesive effect of the back adhesive layer 6, it can be ensured that the entire heat shrink label is stably attached to the attached object.

[0028] In this label, the back-printed ink layer 3 is located between the printing PETG film layer 2 and the first barrier PETG film layer 501 , which can provide good protection for the back-printed ink layer 3 .

[0029] In this label, the first barrier PETG film layer 501 and the second barrier PETG film layer 503 are arranged on both sides of the PETG core film layer 502.

[0030] The first barrier PETG film layer 501 and the second barrier PETG film layer 503 have stronger light blocking performance than the PETG core film layer 502. The PETG core film layer 502 has better elongation performance than the first barrier PETG film layer 501 and the second barrier PETG film layer 503.

[0031] In this label, the first barrier PETG film layer 501, the PETG core film layer 502, and the second barrier PETG film layer 503 form a complete PETG film. Therefore, this label is equivalent to two PETG films laminated together. Compared to a single-layer film, this double-layered label has superior light-blocking properties and strength. Once attached to an object, this label can reduce the effects of ultraviolet rays or external forces on the liquid within the object (including but not limited to bottles).

[0032] As attached Figure 1 As shown, it also includes a surface printing frosted ink layer 1, which is arranged on one side of the printing PETG film layer 2, and the surface printing frosted ink layer 1 and the back printing ink layer 3 are respectively located on both sides of the printing PETG film layer 2.

[0033] The purpose of providing the surface printing frosted ink layer 1 on one side of the printing PETG film layer 2 is to give the entire label a frosted feel.

[0034] As attached Figure 1 As shown, the thickness of the surface printing frosted ink layer 1 is 1 μm, and the thickness of the back printing ink layer 3 is 0.5 μm.

[0035] As attached Figure 1 As shown, it also includes a polyurethane adhesive layer 4, which is arranged between the back printing ink layer 3 and the first barrier PETG film layer 501.

[0036] The function of the polyurethane adhesive layer 4 is to play a bonding role, thereby improving the adhesion strength between the back printing ink layer 3 (and the printing PETG film layer 2) and the first barrier PETG film layer 501.

[0037] As attached Figure 1 As shown, the thickness of the adhesive layer 6 is 3 μm.

[0038] As attached Figure 1 As shown, the thickness of the printed PETG film layer 2 is 15 μm.

[0039] As attached Figure 1 As shown, the thickness of the first barrier PETG film layer 501 is 5 μm, and the thickness of the second barrier PETG film layer 503 is 5 μm.

[0040] As attached Figure 1 As shown, the thickness of the PETG core film layer 502 is 15 μm.

[0041] The adhesive layer of this label may be made of PP3300 adhesive produced by Shanghai Licai.

[0042] The above-described embodiments only express some embodiments of the present invention. The description is relatively specific and detailed, but it should not be understood as limiting the scope of the patent of the present invention. It should be pointed out that for those skilled in the art, it is still possible to modify the technical solutions described in the above-mentioned embodiments or to replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of this utility model should be included in the scope of protection of this utility model.

Claims

1. A heat shrink label, characterized in that: It includes a printing PETG film layer, a back printing ink layer, a first barrier PETG film layer, a PETG core film layer, a second barrier PETG film layer and a back adhesive layer. The PETG core film layer is arranged between the first barrier PETG film layer and the second barrier PETG film layer, the back printing ink layer is arranged between the printing PETG film layer and the first barrier PETG film layer, the back adhesive layer is arranged on one side of the second barrier PETG film layer, and the two sides of the second barrier PETG film layer are respectively the back adhesive layer and the PETG core film layer.

2. The heat shrink label according to claim 1, characterized in that: It also includes a surface-printed frosted ink layer, which is arranged on one side of the printing PETG film layer. The surface-printed frosted ink layer and the back-printed ink layer are respectively located on both sides of the printing PETG film layer.

3. The heat shrink label according to claim 2, characterized in that: The thickness of the surface printing frosted ink layer is 1 μm, and the thickness of the back printing ink layer is 0.5 μm.

4. The heat shrink label according to claim 1, characterized in that: The invention also comprises a polyurethane adhesive layer, which is arranged between the back printing ink layer and the first barrier PETG film layer.

5. The heat shrink label according to claim 1, characterized in that: The thickness of the back adhesive layer is 3 μm.

6. The heat shrink label according to claim 1, characterized in that: The thickness of the printing PETG film layer is 15 μm.

7. The heat shrink label according to claim 1, characterized in that: The thickness of the first barrier PETG film layer is 5 μm, and the thickness of the second barrier PETG film layer is 5 μm.

8. The heat shrink label according to claim 1, characterized in that: The thickness of the PETG core film layer is 15 μm.

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