Shrink label and glass bottle for replacing colored glass bottle

Abstract

The utility model discloses a shrink label and a glass bottle for replacing a colored glass bottle, comprising a first layer of heat-shrinkable polyester film, wherein a printing layer is arranged at the inner layer of the first layer of heat-shrinkable polyester film, the printing layer is used for printing pattern information, a brown resin coating is coated below the printing layer, an adhesive layer is arranged below the brown resin coating, a second layer of heat-shrinkable polyester film is arranged below the adhesive layer, and the brown resin coating is bonded to the second layer of heat-shrinkable polyester film through the adhesive layer; the shrink label is made of a double-layer composite heat-shrinkable polyester film material, and is put on a transparent glass bottle to replace the brown glass bottle, thereby providing protection for the glass bottle; the brown label has good light-blocking and ultraviolet light-blocking effects, and can provide light-shielding protection for medicines or products wrapped in the glass bottle; the polyester material can be self-degraded under certain conditions and is easy to replace, and can effectively solve the problem of difficult recycling of colored glass bottles.

Description

Technical Field

[0001] The utility model belongs to the technical field of shrink labels, and in particular relates to a shrink label and a glass bottle used for replacing a colored glass bottle. Background Art

[0002] Currently, colored glass bottles are widely used in the packaging industry. In the sorting process of colored glass bottles, due to different color categories, the sorting process requires more automated equipment and manual work to ensure that different colors of glass are correctly classified. It is relatively easy to reuse colored glass for products of the same or similar colors during recycling, but mixed color recycled glass mostly requires manual operation, and the selection process requires more processing steps to ensure that the color of the final product meets the requirements.

[0003] Because colored glass is difficult to recycle and sort, while transparent glass can be directly recycled and reused to make new glass products without being restricted by color, manufacturers use single-layer shrink labels on transparent glass bottles instead of colored glass bottles.

[0004] Although single-layer shrink label materials are widely used, they have the following disadvantages: 1. They are easily damaged. Shrink labels are usually made of thinner materials, so they are easily damaged by external forces such as tearing, scratching and folding, resulting in the information on the label not being clearly displayed;

[0005] 2. Unstable adhesion. The adhesion of single-layer shrink labels is usually not stable enough, especially under damp or high temperature conditions, it is easy to loosen and fall off, affecting the durability and effect of the label;

[0006] 3. Environmental issues: Single-layer shrink labels are usually made of single-layer polyvinyl chloride film materials. Discarded single-layer shrink labels are difficult to degrade and recycle. Discarded polyvinyl chloride films cause white pollution and have a negative impact on the ecological environment.

[0007] Therefore, in view of the above problems, it is urgent to provide a new type of colored shrink label with wear resistance, environmental protection and stable adhesion to replace the recycling of colored glass bottles. Utility Model Content

[0008] The purpose of the utility model is to provide a shrink label and a glass bottle for replacing colored glass bottles, so as to solve the problems raised in the above-mentioned background technology, and provide the following technical solutions: A shrink label for replacing colored glass bottles, comprising:

[0009] A first layer of heat-shrinkable polyester film, wherein a printing layer is provided on the inner layer of the first layer of heat-shrinkable polyester film, the printing layer is used to print pattern information, a brown resin coating is provided below the printing layer, an adhesive layer is provided below the brown resin coating, a second layer of heat-shrinkable polyester film is provided below the adhesive layer, and the brown resin coating is bonded to the second layer of heat-shrinkable polyester film through the adhesive layer;

[0010] The first layer of heat-shrinkable polyester film and the second layer of heat-shrinkable polyester film are heat-shrinkable polyester materials with a thickness of 20 μm to 30 μm.

[0011] In the present technical solution, during the production process of the shrink label, the first layer of heat-shrinkable polyester film and the second layer of heat-shrinkable polyester film are both made of heat-shrinkable polyester film materials with similar shrinkage rates, and the preferred thickness is 25 μm. The first layer of heat-shrinkable polyester film has the function of printing support and shrinking under heat to tightly wrap the contents.

[0012] The heat-shrinkable polyester film material has high stability and durability, and can maintain its shape and performance during transportation and storage, thereby ensuring product quality. Compared with disposable packaging materials, the heat-shrinkable polyester film material has higher recyclability and environmental protection, which can reduce the impact on the environment.

[0013] In any of the above technical solutions, further, the adhesive layer is bonded using polyester glue.

[0014] In this technical solution, polyester glue can be used to effectively bond two layers of heat-shrinkable polyester films; polyester glue has excellent weather resistance under various climatic conditions and can resist the influence of ultraviolet radiation, high temperature and humidity. In addition, polyester glue has high heat resistance and can maintain stability in high temperature environments to ensure the stability of the film during heat shrinkage. In addition, polyester glue also has certain chemical resistance and can resist the erosion of some chemicals and solvents.

[0015] In any of the above technical solutions, further, the color of the brown resin coating is brown, brown or dark, and the color of the brown resin coating can be replaced by brown or other dark colors.

[0016] In the present technical solution, the resin coating preferably uses a brown resin coating, which can enhance the protective performance of the printed matter. The resin coating can form a protective covering layer to prevent the film surface from deinking, moisture or other contaminants, thereby improving the durability and damage resistance of the printed matter.

[0017] In addition, the brown resin coating has good anti-ultraviolet properties, which can effectively prevent ultraviolet radiation from sunlight and slow down the fading and decay of the color of objects in the glass bottle; and the brown resin coating can provide a good appearance effect, making the surface of the object present a beautiful color with a brown tone, which can enhance the decorative effect of the entire product.

[0018] In any of the above technical solutions, further, the first layer of heat-shrinkable polyester film and the second layer of heat-shrinkable polyester film have the same heat shrinkability.

[0019] In this technical solution, the second layer of heat-shrinkable polyester film provides structural support and plays a structural role in the double-layer heat-shrinkable film, providing strength and support for the entire package, enhancing the tear resistance and abrasion resistance of the film, and making the package more sturdy and durable; at the same time, the second layer of heat-shrinkable polyester film can be used as a protective layer to provide additional protection for the products in the package to block the intrusion of external substances, such as dust, moisture and oxygen, so as to extend the shelf life of the product.

[0020] The shrinkage rate of heat shrinkable polyester film is determined as follows:

[0021] Shrinkage rate = [1-(narrowest diameter / widest diameter)] × 100%, (the widest diameter and the narrowest diameter are the dimensions of the upper and lower ends of the glass bottle, respectively). In order to ensure the flatness and safety of the first and second heat-shrinkable polyester films during shrinkage, the shrinkage parameters of the heat-shrinkable polyester film are increased by 1%-2% on this basis, and the film with a shrinkage rate slightly higher than the calculated shrinkage rate is used to ensure that it is completely shrunk on the container.

[0022] In any of the above technical solutions, further, a shrink-label glass bottle includes a built-in transparent glass bottle and a shrink label mounted on its surface, characterized in that the shrink label is cut into strips and wrapped into a cylindrical shape and mounted on the surface of the transparent glass bottle, and the shrink label shrinks after being heated and fits onto the body of the transparent glass bottle.

[0023] In the technical scheme, the production process steps of the shrink label glass bottle are: printing-coating-slitting-jointing-labeling-heat shrinking. The pattern information is first printed on the inner layer of the transparent shrink polyester film, and after the pattern information is printed, a layer of brown resin is coated on the inner layer of the film, and then the first layer of heat shrinkable polyester film and the first layer of heat shrinkable polyester film are composited by coating polyester glue, and then the printed label is sealed into a ring, and finally the label is shrunk on the transparent glass bottle by high temperature, and the bottle production is completed.

[0024] The beneficial effects of the utility model are as follows: the shrink label is made of a double-layer composite heat-shrinkable polyester film material, and a brown resin layer is added in the middle of the two polyester materials. The stability and durability of the shrinkable polyester film are utilized to enhance the use strength and wear resistance of the brown label product. By putting the shrink label on the transparent glass bottle to replace the brown glass bottle, the glass bottle wrapped in the label is protected, thereby alleviating the problem of easy breakage of the glass bottle. In addition, the brown label has a good light-blocking and ultraviolet-blocking effect, and can protect the medicine or product wrapped in the glass bottle; the polyester material can degrade by itself under certain conditions, which has green and environmental protection significance. The shrink label made of polyester film material is easy to replace, which can effectively solve the problem of difficult recycling of traditional colored glass bottles. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a schematic diagram of the structure of a brown shrink label;

[0026] Figure 2 It is the widest and narrowest schematic diagram for calculating shrinkage rate of heat shrinkable polyester film;

[0027] Figure 3 This is the production process of brown shrink labels. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present application to clearly describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. All other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application belong to the scope of protection of this application.

[0029] In the description of the present application, it should be noted that the terms used herein are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present application. For ease of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. The technology, methods and equipment known to ordinary technicians in the relevant field may not be discussed in detail, but in appropriate cases, the technology, methods and equipment should be regarded as part of the authorization specification. In all examples shown and discussed here, any specific value should be interpreted as merely exemplary, rather than as a limitation. 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 drawings, so once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings. Example

[0030] like Figure 1 As shown, this embodiment provides a shrink label for replacing colored glass bottles, comprising:

[0031] A first layer of heat-shrinkable polyester film 10, wherein a printing layer 20 is provided at the inner layer of the first layer of heat-shrinkable polyester film 10, wherein the printing layer 20 is used to print pattern information, wherein a brown resin coating 30 is coated below the printing layer 20, wherein an adhesive layer 40 is provided below the brown resin coating 30, wherein a second layer of heat-shrinkable polyester film 50 is provided below the adhesive layer 40, wherein the brown resin coating 30 is bonded to the second layer of heat-shrinkable polyester film 50 via the adhesive layer 40;

[0032] The first heat-shrinkable polyester film 10 and the second heat-shrinkable polyester film 50 are made of heat-shrinkable polyester material with a thickness of 20 μm to 30 μm.

[0033] In the present technical solution, during the production process of the shrink label, the first layer of heat-shrinkable polyester film 10 and the second layer of heat-shrinkable polyester film 50 are both made of heat-shrinkable polyester film materials with similar shrinkage rates, and the preferred thickness is 25 μm. The first layer of heat-shrinkable polyester film 10 has the functions of printing support and shrinking under heat to wrap the contents tightly.

[0034] The heat-shrinkable polyester film material has high stability and durability, and can maintain its shape and performance during transportation and storage, thereby ensuring product quality. Compared with disposable packaging materials, the heat-shrinkable polyester film material has higher recyclability and environmental protection, which can reduce the impact on the environment. Example

[0035] As shown in FIG. 1 , specifically, the adhesive layer 40 is bonded using polyester glue.

[0036] In this technical solution, polyester glue can be used to effectively bond two layers of heat-shrinkable polyester films; polyester glue has excellent weather resistance under various climatic conditions and can resist the influence of ultraviolet radiation, high temperature and humidity. In addition, polyester glue has high heat resistance and can maintain stability in high temperature environments to ensure the stability of the film during heat shrinkage. In addition, polyester glue also has certain chemical resistance and can resist the erosion of some chemicals and solvents. Example

[0037] As shown in FIG. 1 , specifically, the color of the brown resin coating 30 is brown, brown or dark. The color of the brown resin coating 30 can be replaced by brown or other dark colors. The color of the resin layer should be determined according to the required color of the product during the coating process, and this is not limited in the present application.

[0038] In the present technical solution, the resin coating 30 preferably adopts a brown resin coating, which can enhance the protective performance of the printed matter. The resin coating 30 can form a protective covering layer to prevent the film surface from de-inking, moisture or damage by other pollutants, thereby improving the durability and damage resistance of the printed matter.

[0039] In addition, the brown resin coating has good anti-ultraviolet properties, which can effectively prevent ultraviolet radiation from sunlight and slow down the fading and decay of the color of objects in the glass bottle; and the brown resin coating can provide a good appearance effect, making the surface of the object present a beautiful color with a brown tone, which can enhance the decorative effect of the entire product. Example

[0040] As shown in FIG. 2 , specifically, the first layer of heat-shrinkable polyester film 10 and the second layer of heat-shrinkable polyester film 50 have the same heat shrinkability.

[0041] In the present technical solution, the second layer of heat-shrinkable polyester film 50 provides structural support and plays a structural role in the double-layer heat-shrinkable film, providing strength and support for the entire package, enhancing the tear resistance and abrasion resistance of the film, and making the package more sturdy and durable; at the same time, the second layer of heat-shrinkable polyester film 50 can be used as a protective layer to provide additional protection for the products in the package to block the intrusion of external substances, such as dust, moisture, and oxygen, so as to extend the shelf life of the product.

[0042] The shrinkage rate of heat shrinkable polyester film is determined as follows:

[0043] Shrinkage rate = [1-(narrowest diameter / widest diameter)] × 100%, (the widest diameter and the narrowest diameter are the sizes of the upper and lower ends of the glass bottle, respectively). In order to ensure the flatness and safety of the first layer of heat-shrinkable polyester film 10 and the second layer of heat-shrinkable polyester film 50 when shrinking, the shrinkage parameters of the heat-shrinkable polyester film are increased by 1%-2% on this basis, and the film with a shrinkage rate slightly higher than the calculated shrinkage rate is used to ensure that it is completely shrunk on the container. Example

[0044] As shown in FIG. 3 , a shrink-label glass bottle includes a built-in transparent glass bottle and a shrink label sleeved on the surface thereof, wherein the shrink label is cut into strips and wrapped into a cylindrical shape and sleeved on the surface of the transparent glass bottle, and the shrink label shrinks after being heated and fits on the body of the transparent glass bottle.

[0045] In the technical scheme, the production process steps of the shrink label glass bottle are: printing-coating-slitting-jointing-labeling-heat shrinking. The pattern information is first printed on the inner layer of the transparent shrink polyester film, and after the pattern information is printed, a layer of brown resin is coated on the inner layer of the film, and then the first layer of heat shrinkable polyester film and the first layer of heat shrinkable polyester film are composited by coating polyester glue, and then the printed label is sealed into a ring, and finally the label is shrunk on the transparent glass bottle by high temperature, and the bottle production is completed.

[0046] The embodiments of the present application are described above in conjunction with the accompanying drawings. In the absence of conflict, the embodiments in the present application and the features in the embodiments can be combined with each other. The present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of the present application, ordinary technicians in this field can also make many forms without departing from the purpose of the present application and the scope of protection of the claims, all of which are within the protection of the present application.

Claims

1. A shrink label for replacing colored glass bottles, characterized in that: The shrink label comprises: a first layer of heat-shrinkable polyester film (10); a printing layer (20) is provided at the inner layer of the first layer of heat-shrinkable polyester film (10); the printing layer (20) is used to print pattern information; a brown resin coating (30) is coated below the printing layer (20); an adhesive layer (40) is provided below the brown resin coating (30); a second layer of heat-shrinkable polyester film (50) is provided below the adhesive layer (40); the brown resin coating (30) is bonded to the second layer of heat-shrinkable polyester film (50) via the adhesive layer (40).

2. A shrink label for replacing colored glass bottles according to claim 1, characterized in that: The adhesive layer (40) is bonded using polyester glue.

3. A shrink label for replacing colored glass bottles according to claim 1, characterized in that: The first layer of heat-shrinkable polyester film (10) and the second layer of heat-shrinkable polyester film (50) are heat-shrinkable polyester materials with a thickness of 20 μm to 30 μm.

4. A shrink label for replacing colored glass bottles according to claim 1, characterized in that: The color of the brown resin coating (30) may alternatively be brown.

5. A shrink label for replacing colored glass bottles according to claim 2, characterized in that: The first layer of heat-shrinkable polyester film (10) and the second layer of heat-shrinkable polyester film (50) have the same heat shrinkability.

6. A shrink-label glass bottle, comprising a shrink label for replacing a colored glass bottle according to any one of claims 1 to 5, comprising a built-in transparent glass bottle and a shrink label sleeved on the outer surface thereof, characterized in that: The shrink label is cut into strips and wrapped into a cylindrical shape to be sleeved on the outer surface of the transparent glass bottle.

7. The shrink-label glass bottle according to claim 6, characterized in that: The shrink label shrinks after being heated and fits the bottle body of the transparent glass bottle.

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