Transparent high-barrier composite film bag

Abstract

The utility model relates to the technical field of packaging bags, and discloses a transparent high-barrier composite film bag which comprises a composite film bag body. The base material printing layer is used for printing product information, the tear-resistant reinforcing layer is used for improving the strength of the film bag, the flame-retardant protective layer is used for improving the flame retardance of the film bag, the protective composite layer is used for effectively blocking and protecting an internal packaging product, and the base material printing layer is located on the outermost layer of the composite film bag body. The tear-resistant reinforcing layer is positioned between the base material printing layer and the flame-retardant protective layer; the composite film bag has high barrier performance, can avoid water loss after a product is packaged, can effectively block external air and water vapor, effectively protects the product in the film bag, prolongs the shelf life of the product, and improves the production efficiency. And a consumer can observe the condition of an internal product through the composite film bag before purchasing, so that the consumption experience of the consumer is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to a transparent high-barrier composite film bag. Background Art

[0002] Packaging bags refer to bags used to package various supplies, which make it convenient to transport and store goods during the production and circulation process. They are widely used in daily life and industrial production. At present, composite film bags are a common type of packaging bags and are widely used in the packaging of food, medicine, chemicals, electronic products and other fields. Composite film bags are a kind of film or bag with certain barrier properties and mechanical strength, which is composed of two or more different materials through bonding, coating or co-extrusion.

[0003] At present, after the composite film bag is used to package products with high water content, when the composite film bag is affected by the external environment, the products inside are prone to water evaporation, which in turn affects the quality of the packaged products. In addition, after the current composite film bag is used to package the product, consumers cannot directly see the product inside through the composite film bag when purchasing, and cannot get a sensory impression of the product, resulting in a poor consumer experience. Utility Model Content

[0004] The purpose of the utility model is to provide a transparent high-barrier composite film bag to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the utility model provides the following technical solutions: a transparent high-barrier composite film bag, comprising a composite film bag body, the composite film bag body comprising a substrate printing layer for printing product information, a tear-resistant reinforcement layer for increasing the strength of the film bag, a flame-retardant protective layer for improving the flame retardancy of the film bag, and a protective composite layer for effectively blocking and protecting the internally packaged products, the substrate printing layer is located at the outermost layer of the composite film bag body, the tear-resistant reinforcement layer is located between the substrate printing layer and the flame-retardant protective layer, the protective composite layer is located on the surface of the flame-retardant protective layer away from the tear-resistant reinforcement layer, the protective composite layer comprises a first protective layer, a second protective layer and a third protective layer, and easy-tear openings are provided at the upper positions on both sides of the surface of the composite film bag body for users to open the film bag conveniently.

[0006] Preferably, the first protective layer is located on the surface of the flame retardant protective layer away from the tear resistant reinforcement layer, and the second protective layer is located between the first protective layer and the third protective layer.

[0007] Preferably, the second protective layer is made of polyethylene film, and the third protective layer is made of polyethylene film.

[0008] Preferably, the first protective layer is made of modified PET.

[0009] Preferably, the material of the substrate printing layer is aluminum oxide film PET, and the material of the tear-resistant reinforcement layer is polyester film.

[0010] Preferably, the flame retardant protective layer is made of PC film.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] The utility model has high barrier performance. After the composite film bag is used to package the product, it can prevent the loss of moisture and can effectively block the external air and water vapor, thereby effectively protecting the product inside the film bag and extending the shelf life of the product. In addition, consumers can observe the internal product conditions through the composite film bag before purchasing, thereby improving the consumer's consumption experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0014] Figure 2 It is a structural stacking diagram of the utility model;

[0015] Figure 3 It is a three-dimensional schematic diagram of the protective composite layer in the utility model.

[0016] In the figure: 1. Composite film bag body; 11. Base material printing layer; 12. Anti-tear reinforcement layer; 13. Flame retardant protective layer; 14. Protective composite layer; 141. First protective layer; 142. Second protective layer; 143. Third protective layer; 2. Easy-tear opening. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3As shown, a transparent high-barrier composite film bag comprises a composite film bag body 1, wherein the composite film bag body 1 comprises a substrate printing layer 11, an anti-tear reinforcement layer 12, a flame-retardant protective layer 13 and a protective composite layer 14, wherein the substrate printing layer 11 is located at the outermost layer of the composite film bag body 1, the anti-tear reinforcement layer 12 is located between the substrate printing layer 11 and the flame-retardant protective layer 13, the protective composite layer 14 is located on the surface of the flame-retardant protective layer 13 away from the anti-tear reinforcement layer 12, the protective composite layer 14 comprises a first protective layer 141, a second protective layer 142 and a third protective layer 143, and easy-tear openings 2 are provided at the upper positions on both sides of the surface of the composite film bag body 1 for users to open the film bag conveniently.

[0019] The first protective layer 141 is located on the surface of the flame retardant protective layer 13 away from the tear resistant reinforcement layer 12, the second protective layer 142 is located between the first protective layer 141 and the third protective layer 143, the first protective layer 141 is made of modified PET, the second protective layer 142 is made of polyethylene film, and the third protective layer 143 is made of polyethylene film. The modified PET of the first protective layer 141 is added with an anti-ultraviolet agent, and the first protective layer 141 arranged inside the film bag has an anti-ultraviolet function. When the film bag is placed in a sunlight exposure position, it can block the irradiated ultraviolet rays, thereby protecting the products filled in the film bag, while the second protective layer 142 improves the sealing of the film bag to prevent product leakage or external pollution, and the third protective layer 143 can block external gases, and has high oxygen and water vapor barrier properties to prevent the outside world from affecting the products inside the film bag.

[0020] The material of the substrate printing layer 11 is PET alumina film, which is convenient for manufacturers to print product information on the surface of the composite film bag body 1. The material of the tear-resistant reinforcement layer 12 is polyester film. The tear-resistant reinforcement layer 12 can increase the overall strength of the film bag and prevent the film bag from being damaged during transportation or handling.

[0021] The flame retardant protective layer 13 is made of PC film, so that the film bag has a flame retardant function, and provides flame retardant protection for the protective composite layer 14, thereby improving the safety of the film bag.

[0022] Working principle: After the film bag is used to package the product, the first protective layer 141, the second protective layer 142 and the third protective layer 143 inside the film bag can effectively isolate the external air and water vapor. At the same time, if the film bag is filled with products with a high water content, the setting of multiple protective layers can also prevent water loss. Moreover, when the film bag is placed in a light environment, it can also effectively protect the products inside the film bag and extend the shelf life of the products in the film bag. The overall strength of the film bag is relatively high. When the film bag is squeezed or pulled, the tear-resistant reinforcement layer 12 arranged inside it can protect the entire film bag, prevent the film bag from being worn and causing the product inside the film bag to flow out, thereby extending the service life of the film bag.

[0023] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A transparent high-barrier composite film bag, comprising a composite film bag body (1), characterized in that: The composite film bag body (1) includes a substrate printing layer (11) for printing product information, a tear-resistant reinforcement layer (12) for increasing the strength of the film bag, a flame-retardant protective layer (13) for improving the flame retardancy of the film bag, and a protective composite layer (14) for effectively blocking and protecting the internally packaged products. The substrate printing layer (11) is located at the outermost layer of the composite film bag body (1), the tear-resistant reinforcement layer (12) is located between the substrate printing layer (11) and the flame-retardant protective layer (13), the protective composite layer (14) is located on the surface of the flame-retardant protective layer (13) away from the tear-resistant reinforcement layer (12), the protective composite layer (14) includes a first protective layer (141), a second protective layer (142) and a third protective layer (143), and the upper positions on both sides of the surface of the composite film bag body (1) are provided with tear-away openings (2) for users to open the film bag conveniently.

2. A transparent high barrier composite film bag according to claim 1, characterized in that: The first protective layer (141) is located on the surface of the flame retardant protective layer (13) away from the tear resistant reinforcement layer (12), and the second protective layer (142) is located between the first protective layer (141) and the third protective layer (143).

3. The transparent high-barrier composite film bag according to claim 1, characterized in that: The material of the second protective layer (142) is a polyethylene film, and the material of the third protective layer (143) is a polyethylene film.

4. The transparent high-barrier composite film bag according to claim 1, characterized in that: The material of the first protective layer (141) is modified PET.

5. The transparent high-barrier composite film bag according to claim 1, characterized in that: The material of the substrate printing layer (11) is aluminum oxide film PET, and the material of the tear-resistant reinforcement layer (12) is polyester film.

6. The transparent high-barrier composite film bag according to claim 1, characterized in that: The flame retardant protective layer (13) is made of PC film.

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