Transparent high-barrier aluminum oxide-plated polyester film

Abstract

The utility model relates to a transparent high-barrier aluminum oxide plated polyester film which comprises a printing layer, a printing pattern layer and an inner layer, a middle layer and a high-barrier aluminum oxide plated layer are arranged between the inner layer and the printing pattern layer, and the high-barrier aluminum oxide plated layer is plated on the middle layer in a vacuum mode. According to the transparent high-barrier aluminum-oxide-plated polyester film, the high-barrier aluminum-oxide-plated layer is plated on the middle layer, so that the barrier property of a packaging material is improved, and the high-barrier aluminum-oxide-plated layer has transparency, so that compared with the traditional packaging of aluminum foils and aluminum-plastic composite materials, the high-barrier aluminum-oxide-plated polyester film has the advantages that the cost is reduced; the high-barrier aluminum-plated layer package has excellent transparency and visibility, the content of aluminum in the package is reduced, the environmental protection property and safety of the package are improved, the high-barrier aluminum-plated layer is located between the printing layer and the inner layer, the high-barrier aluminum-plated layer is prevented from being damaged by the outside and being migrated into the package content, and the service life of the high-barrier aluminum-plated layer package is prolonged. The requirement for the barrier property of the package is met, the transparency of the package is guaranteed, and the use and appearance performance of the package is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of packaging films, and particularly relates to a transparent high-barrier aluminum oxide-coated polyester film. Background Art

[0002] With the improvement of people's awareness of health, safety and environmental protection in today's society, the safety and environmental protection of products and product packaging are increasingly valued by people. The barrier property and visibility of packaging directly affect the packaging effect of products. The reason for the change of many packaged contents is poor barrier property, and the contents are affected by moisture, oxygen and microorganisms. In addition, the transparency and visibility of the packaging can also allow consumers to directly see the specific situation of the packaged products, improving their safety and display performance. In order to improve the barrier property of packaging, aluminum foil and aluminum-plastic composite materials are widely used as barrier functional packaging materials in the packaging field. However, this type of packaging material uses a large amount of aluminum, a heavy metal, and its disadvantages such as high production energy consumption, high aluminum metal content and opacity have a great impact on safety and environmental protection. Summary of the Utility Model

[0003] In view of the deficiencies of the prior art, the technical problem to be solved by the utility model is to provide a transparent high-barrier aluminum oxide-coated polyester film, which can be transparent and visible, and also improves the barrier property of the packaging material.

[0004] To solve the above technical problems, the technical solution adopted by the utility model is: a transparent high-barrier aluminum oxide-coated polyester film, including a printing layer, a printed pattern layer and an inner layer. A middle layer and a high-barrier aluminum oxide coating layer are provided between the inner layer and the printed pattern layer. The high-barrier aluminum oxide coating layer is vacuum-coated on the middle layer and is arranged in a laminating manner with the printed pattern layer.

[0005] The printing layer is a polyester film, a polyolefin film or a nylon film.

[0006] The middle layer is a polyester film.

[0007] The inner layer is a polyolefin film, a polyester film or a nylon film.

[0008] Separation ports are provided on both the middle layer and the high-barrier aluminum oxide coating layer. An adhesive layer is provided in the separation port, and a tearing score line is provided in the middle of the inner layer corresponding to the adhesive layer.

[0009] An antistatic layer is covered on the printing layer.

[0010] Compared with the prior art, the utility model has the following beneficial effects:

[0011] The utility model relates to a transparent high-barrier aluminum oxide-coated polyester film. By coating a high-barrier aluminum oxide layer on the intermediate layer, the barrier property of the packaging material is improved, and the high-barrier aluminum oxide layer has transparency. Compared with the packaging of traditional aluminum foil and aluminum-plastic composite materials, the packaging with the high-barrier aluminum oxide layer has excellent transparency and visibility, reduces the aluminum content in the packaging, and improves the environmental protection and safety of the packaging. The high-barrier aluminum oxide layer is located between the printing layer and the inner layer, preventing the high-barrier aluminum oxide layer from being damaged externally and migrating into the packaging contents, ensuring both the barrier property requirements of the packaging and the transparency of the packaging, and improving the use and appearance performance of the packaging. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a schematic structural diagram of the transparent high-barrier aluminum oxide-coated polyester film of the utility model.

[0013] Reference numerals in the figure: 1, printing layer; 2, printed pattern layer; 3, inner layer; 4, intermediate layer; 5, high-barrier aluminum oxide layer; 6, adhesive layer; 7, tear line; 8, antistatic layer. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0014] In order to make the above features and advantages of the utility model more obvious and understandable, specific embodiments are hereinafter given and described in detail in conjunction with the accompanying drawings.

[0015] As Figure 1 shown, this embodiment provides a transparent high-barrier aluminum oxide-coated polyester film, which includes a printing layer 1, a printed pattern layer 2 and an inner layer 3. An intermediate layer 4 and a high-barrier aluminum oxide layer 5 are provided between the inner layer 3 and the printed pattern layer 2. The high-barrier aluminum oxide layer 5 is vacuum-coated on the intermediate layer 4 and is arranged in a fitting manner with the printed pattern layer 2. Specifically, the printing layer 1 is a polyester film, a polyolefin film or a nylon film, preferably a polyester film, and the intermediate layer 4 is a polyester film. The inner layer 3 is a polyolefin film, a polyester film or a nylon film, preferably a polyolefin film. By coating a high-barrier aluminum oxide layer 5 on the intermediate layer 4, the barrier property of the packaging material is improved, and the high-barrier aluminum oxide layer 5 has transparency. Compared with the packaging of traditional aluminum foil and aluminum-plastic composite materials, the packaging with the high-barrier aluminum oxide layer 5 has excellent transparency and visibility, reduces the aluminum content in the packaging, and improves the environmental protection and safety of the packaging. The high-barrier aluminum oxide layer 5 is located between the printing layer 1 and the inner layer 3, preventing the high-barrier aluminum oxide layer 5 from being damaged externally and migrating into the packaging contents, ensuring both the barrier property requirements of the packaging and the transparency of the packaging, and improving the use and appearance performance of the packaging.

[0016] Further, separation ports are provided on both the intermediate layer 4 and the high-barrier aluminum oxide coating layer 5. An adhesive layer 6 is provided inside the separation ports. A tearing score line 7 is provided in the middle of the inner layer 3 corresponding to the adhesive layer 6. However, in the prior art, the initial area of the film produced by the manufacturer is relatively large. When in use, the film needs to be cut and slit according to the usage adjustment. However, the overall strength of the intermediate layer 4 and the high-barrier aluminum oxide coating layer 5 is high and the toughness is large. It is difficult to quickly and accurately slit the film during slitting. Therefore, by providing the tearing score line 7, the film can be cut along the tearing score line 7 to cut the adhesive layer 6, so as to achieve accurate slitting of the film, and the inner layer 3 covering the adhesive layer 6 can be removed, and the adhesive layer 6 can be used for pasting and bonding.

[0017] Further, an antistatic layer 8 is covered on the printing layer 1. The antistatic property is increased.

[0018] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and the descriptions in the specification only illustrate the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements fall within the scope of the present invention claimed. The scope of protection of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transparent high-barrier aluminum oxide-coated polyester film, characterized in that: It comprises a printing layer, a printing pattern layer and an inner layer, wherein an intermediate layer and a high-barrier aluminum oxide coating layer are arranged between the inner layer and the printing pattern layer, and the high-barrier aluminum oxide coating layer is vacuum-coated on the intermediate layer and is bonded to the printing pattern layer.

2. The transparent high-barrier aluminum oxide-coated polyester film according to claim 1, characterized in that: The printing layer is a polyester film, a polyolefin film or a nylon film.

3. The transparent high-barrier aluminum oxide-coated polyester film according to claim 1, characterized in that: The middle layer is a polyester film.

4. The transparent high-barrier aluminum oxide-coated polyester film according to claim 1, characterized in that: The inner layer is a polyolefin film, a polyester film or a nylon film.

5. The transparent high-barrier aluminum oxide-coated polyester film according to claim 1, characterized in that: Separation ports are provided on the intermediate layer and the high-barrier aluminum oxide-plated layer, an adhesive layer is provided inside the separation port, and a tear mark line is provided in the middle of the inner layer corresponding to the adhesive layer.

6. The transparent high-barrier aluminum oxide-coated polyester film according to claim 1, characterized in that: The printing layer is covered with an antistatic layer.

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