Casting polypropylene plated multi-layer metallized ultra-low-temperature, high-barrier and high-adhesive-force film

Abstract

The utility model relates to the technical field of food packaging, in particular to a casting polypropylene plated multi-layer metallized ultralow-temperature, high-barrier and high-adhesive-force film, which comprises a film body, the film body comprises a first metal layer, a second metal layer and a film base layer, and the high-performance film can be packaged at a high speed in an ultralow-temperature environment and can be packaged at a high temperature or a low temperature. According to the present invention, the food can be effectively protected and the best protection can be provided for the food in both the environment where the food is oxidized and the environment where the food is wet and dry, and the high adhesion force can be provided for the food susceptible to oxidation and humidity, such that the food can be tightly adhered to the surface of the food so as to ensure the safety and the stability of the food during the transportation and storage process; no matter in the production, transportation or storage process, food can be effectively prevented from falling off or being separated, and the food can be kept complete and attractive all the time.

Description

Technical Field

[0001] The utility model relates to the technical field of food packaging, in particular to a cast polypropylene multi-layer metallized ultra-low temperature, high barrier and high adhesion film. Background Art

[0002] Food packaging film is a type of polymer material used to wrap food. Its main function is to isolate bacteria and foreign contaminants, prevent food from spoiling, and extend its shelf life. Food packaging film can be classified into plastic film and composite film according to its material. Cast film is a production process for forming films, sheets and other materials. Cast polypropylene film is a polypropylene film produced using the cast film process.

[0003] Although the films in the prior art have many benefits, they still have the following problems: their low temperature resistance, weather resistance and aging resistance are poor, and there is a problem of the film falling off or separating from the food, resulting in the food not always remaining intact and beautiful. Utility Model Content

[0004] In view of the problems in the prior art, the utility model provides a cast polypropylene multi-layer metallized ultra-low temperature, high barrier and high adhesion film.

[0005] The utility model solves the technical problem by adopting a technical solution of casting polypropylene to coat a multilayer metallized ultra-low temperature, high barrier and high adhesion film, comprising a film body comprising a first metal layer, a second metal layer and a film base layer.

[0006] By adopting the above technical solution, the second metal layer and the first metal layer are respectively plated on the surface of the film base layer by vacuum plating, thereby forming the film body.

[0007] Specifically, the second metal layer is located at the lower end of the first metal layer, and the thin film base layer is located at the lower end of the second metal layer.

[0008] By adopting the above technical solution, the second metal layer and the first metal layer are both vacuum-plated to form a protective film on the surface of the film base, which can further improve the application effect of the film base and improve the application range of the film body.

[0009] Specifically, the thickness of the first metal layer and the second metal layer is less than the thickness of the thin film base layer.

[0010] By adopting the above technical solution, the first metal layer is designed with aluminum oxide material. The first metal layer can improve the insulation properties of the film base layer, effectively prevent the penetration of oxygen, water vapor and other gases, and can protect the packaged food from the influence of the external environment and extend the shelf life of the food. The second metal layer is designed with metal aluminum material. The second metal layer can prevent the film base layer from oxidation and deterioration, improve the friction resistance of the film body, and improve the overall durability of the film body, thereby increasing the protective performance of the film body.

[0011] Beneficial effects of the utility model:

[0012] (1) The cast polypropylene multi-layer metallized ultra-low temperature, high barrier, and high adhesion film described in the present invention is a high-performance film that can be packaged at high speed in an ultra-low temperature environment. It has excellent weather resistance and anti-aging properties and can maintain stable performance in various extreme environments. Whether it is high temperature, low temperature, or humid or dry environment, it can effectively protect food. The high barrier performance can effectively prevent the penetration of oxygen and moisture, providing the best protection for food. For those foods that are susceptible to oxidation and moisture, it also has high adhesion and can adhere tightly to the surface of food, ensuring the safety and stability of food during transportation and storage. Whether in the production, transportation or storage process, it can effectively prevent the food from falling off or separating, so that the food always remains intact and beautiful. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0014] Figure 1 This is a schematic diagram of the appearance of the film body structure of the utility model;

[0015] Figure 2 This is a schematic cross-sectional view of the film body structure of the present invention.

[0016] In the figure: 1. Film body; 2. First metal layer; 3. Second metal layer; 4. Film base layer. DETAILED DESCRIPTION

[0017] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0018] In order to save manpower and improve efficiency, as an embodiment of the present invention, Figure 1 、 Figure 2 As shown, the cast polypropylene multi-layer metallized ultra-low temperature, high barrier, and high adhesion film described in the present invention includes a film body 1, which includes a first metal layer 2, a second metal layer 3, and a film base layer 4.

[0019] When in use, the second metal layer 3 and the first metal layer 2 are respectively plated on the surface of the film base layer 4 by vacuum plating, thereby forming the film body 1.

[0020] In order to improve the performance of the thin film base layer 4, for example, Figure 2 As shown, the second metal layer 3 is located at the lower end of the first metal layer 2 , and the thin film base layer 4 is located at the lower end of the second metal layer 3 .

[0021] During use, the second metal layer 3 and the first metal layer 2 are both vacuum-plated to form a protective film on the surface of the film base 4, which can further improve the application effect of the film base 4 and improve the application range of the film body 1.

[0022] In order to improve the performance of the film base layer 4, for example, Figure 2 As shown, the thickness of the first metal layer 2 and the second metal layer 3 is lower than the thickness of the thin film base layer 4 .

[0023] When in use, the first metal layer 2 is designed with aluminum oxide material. The first metal layer 2 can improve the insulation of the film base layer 4, effectively prevent the penetration of oxygen, water vapor and other gases, and can improve the packaged food from being affected by the external environment and extend the shelf life of the food. The second metal layer 3 is designed with metal aluminum material. The second metal layer 3 can prevent the film base layer 4 from oxidation and deterioration, improve the friction resistance of the film body 1, and improve the overall durability of the film body 1, thereby increasing the protective performance of the film body 1.

[0024] When the present invention is in use, the second metal layer 3 and the first metal layer 2 are respectively coated on the surface of the film base layer 4 by vacuum coating, thereby forming the film body 1, improving the various properties of the film body 1, and being able to increase durability, insulation and weather resistance without changing the basic properties of the film base layer 4, thereby improving the protective effect of the film body 1 on food.

[0025] It should be noted that the present invention is a cast polypropylene multi-layer metallized ultra-low temperature, high barrier, and high adhesion film. The components in the present invention are all components known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0026] 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 to the above embodiments. The above embodiments and descriptions are merely illustrative of the principles of the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention. Such changes and improvements are intended to fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. Cast polypropylene multi-layer metallized ultra-low temperature, high barrier, high adhesion film, characterized by: The invention comprises a film body (1), wherein the film body (1) comprises a first metal layer (2), a second metal layer (3) and a film base layer (4).

2. The cast polypropylene multi-layer metallized ultra-low temperature, high barrier, and high adhesion film according to claim 1, characterized in that: The second metal layer (3) is located at the lower end of the first metal layer (2), and the thin film base layer (4) is located at the lower end of the second metal layer (3).

3. The cast polypropylene multi-layer metallized ultra-low temperature, high barrier, and high adhesion film according to claim 1, characterized in that: The thickness of the first metal layer (2) and the second metal layer (3) is lower than the thickness of the thin film base layer (4).

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