High-barrier liquid packaging film

Abstract

The utility model relates to the technical field of boxed liquid aromatherapy packaging materials, and discloses a high-barrier liquid packaging film which comprises a first polyester film layer, an aluminum foil film layer, a second polyester film layer and a PE film layer, the aluminum foil film layer is assembled at the bottom of the first polyester film layer, the second polyester film layer is assembled at the bottom of the aluminum foil film layer, and the PE film layer is assembled at the bottom of the second polyester film layer. And the PE film layer is assembled at the bottom of the second polyester film layer. According to the high-barrier liquid packaging film, the second polyester film layer and the PE film layer are additionally arranged, so that the whole film has barrier and light-proof performance, the air permeability is achieved through the detachable first polyester film layer on the premise that the whole film body is not damaged, and a traditional liquid aroma packaging film is avoided; the aromatherapy can be volatilized and used only after the film body is completely damaged, so that the aromatherapy is prevented from being eroded by external dust, and meanwhile, the risk of explosion and the like caused by high-temperature exposure of the liquid aromatherapy in high-temperature weather can also be avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of boxed liquid aromatherapy packaging materials, specifically a high-barrier liquid packaging film. Background Technology

[0002] Liquid aromatherapy is a product that enhances the ambiance of an environment by releasing fragrance into the air. It is generally a perfume made of a mixture of aromatic oils and water, which can be released through devices such as spray bottles or heaters. Liquid aromatherapy requires liquid packaging film during processing and packaging, and existing liquid aromatherapy packaging films are usually made of plastic materials such as polyethylene (PE) or polypropylene (PP).

[0003] In existing technologies, liquid aromatherapy requires the outer packaging film to be completely removed before the internal gas can be released. This may cause dust to fall inside or outside the liquid aromatherapy, affecting the evaporation of the fragrance and reducing the overall aesthetics of the liquid aromatherapy. In addition, when the liquid aromatherapy is fully opened, it is easily exposed to sunlight, which may cause risks such as explosion. Utility Model Content

[0004] (a) Technical problems to be solved

[0005] To address the shortcomings of existing technologies, this utility model provides a high-barrier liquid packaging film to solve the technical problems mentioned above, such as dust falling inside or outside the liquid aromatherapy product affecting the evaporation of the aroma and reducing the overall aesthetics of the liquid aromatherapy product, and the risk of explosion caused by sunlight exposure when the liquid aromatherapy product is fully opened.

[0006] (II) Technical Solution

[0007] To achieve the above objectives, the present invention provides the following technical solution: a high-barrier liquid packaging film, comprising: a first polyester film layer, an aluminum foil film layer, a second polyester film layer and a PE film layer, wherein the aluminum foil film layer is assembled at the bottom of the first polyester film layer, the second polyester film layer is assembled at the bottom of the aluminum foil film layer, and the PE film layer is assembled at the bottom of the second polyester film layer.

[0008] Preferably, a printing layer is mounted on top of the first polyester film layer, and the printing layer is a square offset paper. The first polyester film layer is used to protect the aluminum foil film layer from external damage, and at the same time, the printing layer can provide the necessary printing appearance requirements.

[0009] Preferably, the barrier coefficient of the aluminum foil film layer is ≤0.001 (24h, 0.1Mpa, 23℃, 0%RH) cm. 3 / m 2The aluminum foil film layer mainly serves to block light and oxygen from the perfume gas. At the same time, its barrier coefficient can ensure the stability of highly volatile materials such as liquid perfumes and prevent the fragrance from exploding when exposed to high temperatures outdoors.

[0010] Preferably, the second polyester film layer and the PE film layer are coated. The second polyester film layer is used to ensure the overall stiffness of the film, so that the film remains stiff after being rolled up and unrolled, and the film does not bend. This facilitates subsequent finished product processing. At the same time, the coating process makes it easy to peel off later, and does not affect the air permeability of the PE film layer.

[0011] Preferably, the outer surface of the PE film layer is uniformly provided with breathable micropores, which allow aromatherapy gas molecules to pass through. The inner surface of the PE film layer is also provided with breathable micropores, which allow aromatherapy gas molecules to pass through. At the same time, the material properties of the PE film layer can avoid low-temperature heat sealing performance and facilitate heat sealing processing with other materials.

[0012] (III) Beneficial Effects

[0013] Compared with the prior art, this utility model provides a high-barrier liquid packaging film with the following characteristics:

[0014] Beneficial effects:

[0015] This high-barrier liquid packaging film, when used to package liquid aromatherapy products, provides overall barrier and light-blocking properties through the addition of a second polyester film layer and a PE film layer. The removable first polyester film layer allows for breathability without damaging the entire film, avoiding the need for complete destruction of traditional liquid aromatherapy packaging films to allow the aromatherapy to evaporate. This prevents the aromatherapy from being corroded by external dust and also avoids the risk of explosion caused by high temperatures and exposure to sunlight in hot weather. Attached Figure Description

[0016] Figure 1 This is an exploded view of the present invention;

[0017] Figure 2 This is a plan view of the present utility model.

[0018] In the figure: 1. First polyester film layer; 2. Aluminum foil film layer; 3. Second polyester film layer; 4. PE film layer. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0020] This utility model provides a technical solution, please refer to Figure 1 and Figure 2 A high-barrier liquid packaging film includes: a first polyester film layer 1, an aluminum foil film layer 2, a second polyester film layer 3, and a PE film layer 4, wherein the aluminum foil film layer 2 is assembled at the bottom of the first polyester film layer 1, the second polyester film layer 3 is assembled at the bottom of the aluminum foil film layer 2, and the PE film layer 4 is assembled at the bottom of the second polyester film layer 3.

[0021] The top of the first polyester film layer 1 is fitted with a printing layer, which is a square piece of offset paper. The first polyester film layer 1 protects the aluminum foil film layer 2 from external damage, while also providing the necessary printed appearance. The barrier coefficient of the aluminum foil film layer 2 is ≤0.001 (24h, 0.1Mpa, 23°C, 0%RH) cm. 3 / m 2 The aluminum foil film layer 2 mainly serves to block light and oxygen from the perfume gas. At the same time, its barrier coefficient can ensure the stability of highly volatile materials such as liquid perfumes and prevent the fragrance from exploding when exposed to high temperatures outdoors.

[0022] The second polyester film layer 3 and the PE film layer 4 are coated together. The second polyester film layer 3 is used to ensure the overall stiffness of the film, so that the film remains stiff after being rolled up and unrolled, and does not bend. This facilitates subsequent finished product processing. At the same time, the coating process makes it easy to peel off later without affecting the air permeability of the PE film layer 4. The exterior of the PE film layer 4 is uniformly distributed with air-permeable micropores, which allow aromatherapy gas molecules to pass through. The interior of the PE film layer 4 also has air-permeable micropores, which allow aromatherapy gas molecules to pass through. In addition, the material properties of the PE film layer 4 can avoid low-temperature heat sealing, making it easy to heat seal with other materials.

[0023] In this solution, the second polyester film layer 3 is composite hot-melt processed using materials such as AL and VMPET, and then processed through molding micropores to give the PE film layer 4 a certain degree of air permeability and liquid impermeability. At the same time, the second polyester film layer 3 and the PE film layer 4 are coated. After the materials are combined with high-barrier materials, the film as a whole has barrier and light-blocking properties. When in use, the air permeability can be achieved by peeling off the outer first polyester film layer 1 without damaging the entire film. When not in use, the added first polyester film layer 1, aluminum foil film layer 2 and second polyester film layer 3 provide light-blocking protection for the aromatherapy materials, ensuring the various properties of the materials.

[0024] When packaging liquid aromatherapy products, the addition of a second polyester film layer 3 and a PE film layer 4 gives the film overall barrier and light-blocking properties. The detachable first polyester film layer 1 allows for breathability without damaging the entire film, avoiding the need for complete destruction of the film in traditional liquid aromatherapy packaging films to allow the aromatherapy to evaporate. This prevents the aromatherapy from being corroded by external dust and also avoids the risk of explosion caused by high temperatures and exposure to sunlight in hot weather.

[0025] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0026] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-barrier liquid packaging film, comprising: The first polyester film layer (1), the aluminum foil film layer (2), the second polyester film layer (3) and the PE film layer (4) are characterized in that: the aluminum foil film layer (2) is assembled at the bottom of the first polyester film layer (1), the second polyester film layer (3) is assembled at the bottom of the aluminum foil film layer (2), the PE film layer (4) is assembled at the bottom of the second polyester film layer (3), and the second polyester film layer (3) and the PE film layer (4) are coated.

2. The high-barrier liquid packaging film according to claim 1, characterized in that: The top of the first polyester film layer (1) is fitted with a printing layer, and the printing layer is a square offset paper.

3. The high-barrier liquid packaging film according to claim 1, characterized in that: The barrier coefficient of the aluminum foil film layer (2) is ≤0.001 (24h, 0.1Mpa, 23°C, 0%RH) cm³ / m².

4. The high-barrier liquid packaging film according to claim 1, characterized in that: The PE film layer (4) is uniformly provided with breathable micropores on its outer surface, and the breathable micropores allow aroma gas molecules to pass through.

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