Hygroscopic composite film packaging bag

Abstract

The utility model relates to the technical field of packaging bags, in particular to a hygroscopic composite film packaging bag which comprises a bag body, and the bag body comprises a composite packaging bag. A moisture absorption mechanism is arranged on the inner side of the composite packaging bag and comprises a PET layer. Due to the arrangement of the PET layer, the packaging film has the advantages of being low in gas and water vapor permeability and excellent in gas, water, oil and peculiar smell blocking performance, the environment for packaging products can be guaranteed, the aluminum foil blocking layer serves as the blocking layer, external water vapor can be well prevented from entering the packaging film, the products can be prevented from being affected with damp, and the service life of the packaging film is prolonged. The SPE layer has high strength and high barrier property, so that the product is better protected, and meanwhile, the heat-sealing resin layer and the moisture absorption material in the heat-sealing resin layer are matched, so that water vapor in the composite packaging bag can be adsorbed, the product can obtain a good storage environment, and when the product is packaged, the product is not prone to falling off. Hygroscopicity can be realized without placing a drying agent, so that the cost is saved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of packing bag, specifically is a hygroscopic composite film packing bag. BACKGROUND

[0002] The packing bag is a bag-shaped article made of paper, plastic, textile and other materials, mainly used for containing and protecting goods or articles, which can prevent the articles from physical damage, chemical pollution or biological invasion, and provide convenience during transportation and storage. According to different materials and functions, the packing bag can be divided into various types, such as plastic bags, paper bags, cloth bags, etc. The composite film packing bag is a packing bag composed of two or more different materials by adhesion, heat sealing and other methods, which has many properties such as moisture-proof, oxygen barrier, light shielding, oil resistance, cold resistance, high temperature resistance, etc. According to the difference of composite materials and process, the properties are also different, which can be widely used in the packaging of food, pesticide, daily necessities, such as instant noodles, biscuits, puffed food, candy, milk, pesticide, etc.

[0003] In the prior art, when the product is packaged by the composite film packing bag, for the product sensitive to water vapor, the traditional composite film and bag packaging will place a desiccant in the bag if the bag is not vacuumized, which can absorb the moisture in the bag to avoid affecting the product in the bag. However, adding desiccant in the bag not only needs to buy desiccant, but also causes labor, efficiency and space cost when putting the desiccant into the bag. Therefore, in order to solve the above problems, a hygroscopic composite film packing bag is proposed. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a hygroscopic composite film packing bag to solve the problem of adding desiccant in the bag mentioned in the background technology, which not only needs to buy desiccant, but also causes labor, efficiency and space cost when putting the desiccant into the bag.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a hygroscopic composite film packing bag, comprising a bag body, the bag body comprises a composite packing bag;

[0006] The inner side of the composite packing bag is provided with a moisture absorption mechanism, the moisture absorption mechanism comprises a PET layer, the PET layer is arranged on the inner side of the composite packing bag, the surface of the PET layer is fixedly connected with an aluminum foil barrier layer, the surface of the aluminum foil barrier layer is fixedly connected with an SPE layer, and the surface of the SPE layer is fixedly connected with a heat sealing resin layer.

[0007] Preferably, one end of the aluminum foil barrier layer is fixedly connected with the PET layer, and the other end of the aluminum foil barrier layer is fixedly connected with the SPE layer.

[0008] Preferably, the heat-seal resin layer is fixedly connected to the SPE layer away from the aluminum foil barrier layer, and the inner side of the heat-seal resin layer is provided with a hygroscopic material.

[0009] Preferably, the surface of the composite packaging bag is provided with an auxiliary mechanism, the auxiliary mechanism comprising a handle fixedly connected to the surface of the composite packaging bag, and the inner side of the composite packaging bag is provided with a sealed connection port.

[0010] Preferably, the surface of the composite packaging bag is provided with a notch, and the inner surface of the composite packaging bag is fixedly connected with a self-sealing strip.

[0011] Preferably, the handle is fixedly connected to the surface of the composite packaging bag in two groups, and the notch is V-shaped.

[0012] Compared with the prior art, the composite packaging bag has the advantages that:

[0013] 1. The PET layer has low gas and water vapor permeability, excellent gas, water, oil and odor resistance, and can protect the product packaging environment. The aluminum foil barrier layer can effectively prevent external moisture from entering, thereby preventing the product from being damp. The SPE layer has high strength and high barrier property, which can better protect the product. In combination with the heat-seal resin layer and the hygroscopic material inside the heat-seal resin layer, the water vapor in the composite packaging bag can be adsorbed, thereby providing a good storage environment for the product, so that the product can be packaged without the need for a desiccant, which saves costs.

[0014] 2. The handle facilitates the carrying of the composite packaging bag, making it easier to take the composite packaging bag. The notch facilitates the tearing of the composite packaging bag, allowing the composite packaging bag and the notch to be separated, thereby facilitating the opening of the composite packaging bag for product removal. The self-sealing strip can seal the composite packaging bag after the composite packaging bag and the notch are separated, thereby facilitating repeated opening and closing of the composite packaging bag, and preventing moisture from entering and causing the product to be damp, thereby protecting the product storage environment. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 is a structure front view schematic diagram of the composite packaging bag and the PET layer of the utility model;

[0016] Figure 2 is a structure front view schematic diagram of the composite packaging bag and the PET layer of the utility model;

[0017] Figure 3 is a structure front view schematic diagram of the composite packaging bag and the PET layer of the utility model;

[0018] Figure 4 The structure of the utility model is a top view schematic diagram.

[0019] In the figure: 1, composite packaging bag; 2, PET layer; 21, aluminum foil barrier layer; 22, SPE layer; 23, heat-seal resin layer; 3, handle; 31, sealing connection port; 32, notch; 33, self-sealing strip. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] Please refer to Figures 1-4 An embodiment provided by the utility model:

[0022] A hygroscopic composite film packaging bag, comprising a bag body, the bag body comprises a composite packaging bag 1, the composite packaging bag 1 is a packaging material combined by two or more than two materials through one or more dry composite processes, and can be widely applied in the fields of food, electronic products, chemical industry, medicine, tea, precision instruments and national defense cutting-edge products, etc.

[0023] The inner side of the composite packaging bag 1 is provided with a moisture absorption mechanism, the moisture absorption mechanism comprises a PET layer 2, the PET layer 2 is arranged on the inner side of the composite packaging bag 1, the surface of the PET layer 2 is fixedly connected with an aluminum foil barrier layer 21, the surface of the aluminum foil barrier layer 21 is fixedly connected with an SPE layer 22, the surface of the SPE layer 22 is fixedly connected with a heat-seal resin layer 23, the PET layer 2 has good mechanical properties, simultaneously has low gas and water vapor permeability, has the characteristics of excellent gas, water, oil and odor resistance, and can guarantee the quality and safety of product packaging, meanwhile, the SPE layer 22 has high strength and high barrier property, and can better avoid product dampness.

[0024] Further, one end of the aluminum foil barrier layer 21 is fixedly connected with the PET layer 2, and the other end of the aluminum foil barrier layer 21 is fixedly connected with the SPE layer 22, the SPE layer 22 adopts aluminum foil material as the barrier layer, can effectively block external moisture from entering, and thus can avoid product dampness, and can guarantee the environment of product packaging.

[0025] Further, the heat-seal resin layer 23 is fixedly connected to one end of the SPE layer 22 away from the aluminum foil barrier layer 21, the inner side of the heat-seal resin layer 23 is provided with a hygroscopic material, the heat-seal resin layer 23 is made of a heat-seal layer resin material and has a certain hygroscopicity, which, in cooperation with the hygroscopic material arranged therein, can adsorb the water vapor in the composite packaging bag 1, thereby facilitating the preservation of the product.

[0026] Further, the surface of the composite packaging bag 1 is provided with an auxiliary mechanism, the auxiliary mechanism includes a handle 3 fixedly connected to the surface of the composite packaging bag 1, and the inner side of the composite packaging bag 1 is provided with a sealing connection port 31, so that the composite packaging bag 1 can be conveniently carried by hand, thereby facilitating the taking and using of the composite packaging bag 1.

[0027] Further, the surface of the composite packaging bag 1 is provided with a notch 32, and the inner surface of the composite packaging bag 1 is fixedly connected with a self-sealing strip 33, so that after the composite packaging bag 1 is torn through the notch 32, the tight connection of the self-sealing strip 33 can realize the sealing of the composite packaging bag 1, facilitating the opening and closing of the composite packaging bag 1, thereby better preventing the product in the composite packaging bag 1 from being damp.

[0028] Further, the handle 3 is fixedly connected to the surface of the composite packaging bag 1 in two groups, and the notch 32 is V-shapedly provided on the surface of the composite packaging bag 1, so that when the composite packaging bag 1 is opened, the composite packaging bag 1 can be conveniently torn through the notch 32, thereby realizing the separation of the sealing connection port 31 and the composite packaging bag 1, and facilitating the use of the product in the composite packaging bag 1.

[0029] Working principle: when in use, the PET layer 2 has the advantages of low gas and water vapor permeability, excellent gas, water, oil and odor resistance, and can provide a stable and good environment for product packaging, the aluminum foil barrier layer 21 has the advantages of moisture-proof, airtight, light-shielding, wear-resistant, aroma-preserving, non-toxic and odorless, can block the external water vapor, prevent the invasion of external moisture to cause the product to be damp, the SPE layer 22 has the characteristics of high strength and high barrier, can better protect the product and ensure the dryness of the product, the heat-seal resin layer 23 and the hygroscopic material arranged therein can adsorb the water vapor in the composite packaging bag 1, thereby ensuring the dryness of the environment in the composite packaging bag 1 and the preservation environment of the product;

[0030] The handle 3 is arranged to facilitate the carrying of the composite packaging bag 1, the sealed connection port 31 is arranged to facilitate the tearing of the composite packaging bag 1, thereby facilitating the opening of the composite packaging bag 1, the self-sealing strip 33 is arranged to facilitate the sealing of the composite packaging bag 1 after the composite packaging bag 1 is torn, thereby facilitating the repeated opening and closing of the composite packaging bag 1, and facilitating the taking and storing of the product.

[0031] The above is only a preferred embodiment of the present application, and does not limit the present application in any form; any person skilled in the art can implement the present application according to the drawings and the above; however, any equivalent changes, modifications and evolutions made by those skilled in the art within the scope of the technical scheme of the present application, using the above disclosed technical content, are equivalent embodiments of the present application; at the same time, any equivalent changes, modifications and evolutions made according to the essential technology of the present application to the above embodiments are still within the protection scope of the technical scheme of the present application.

Claims

1. A moisture-absorbing composite film packaging bag, comprising a bag body, said bag body comprising a composite packaging bag (1), characterized in that, The composite packaging bag (1) is provided with a moisture-absorbing mechanism on the inside. The moisture-absorbing mechanism includes a PET layer (2). The PET layer (2) is provided on the inside of the composite packaging bag (1). An aluminum foil barrier layer (21) is fixedly connected to the surface of the PET layer (2). An SPE layer (22) is fixedly connected to the surface of the aluminum foil barrier layer (21). A heat-sealing resin layer (23) is fixedly connected to the surface of the SPE layer (22).

2. The moisture-absorbing composite film packaging bag according to claim 1, characterized in that: One end of the aluminum foil barrier layer (21) is fixedly connected to the PET layer (2), and the other end of the aluminum foil barrier layer (21) is fixedly connected to the SPE layer (22).

3. The moisture-absorbing composite film packaging bag according to claim 1, characterized in that: The heat-sealing resin layer (23) is fixedly connected to one end of the SPE layer (22) away from the aluminum foil barrier layer (21), and a moisture-absorbing material is provided on the inner side of the heat-sealing resin layer (23).

4. The moisture-absorbing composite film packaging bag according to claim 1, characterized in that: The surface of the composite packaging bag (1) is provided with an auxiliary mechanism, which includes a handle (3). The handle (3) is fixedly connected to the surface of the composite packaging bag (1), and a sealing connection port (31) is provided on the inner side of the composite packaging bag (1).

5. The moisture-absorbing composite film packaging bag according to claim 4, characterized in that: The surface of the composite packaging bag (1) has a notch (32), and a self-sealing strip (33) is fixedly connected to the inner surface of the composite packaging bag (1).

6. The moisture-absorbing composite film packaging bag according to claim 5, characterized in that: The handles (3) are fixedly connected to the surface of the composite packaging bag (1) in two sets, and the notch (32) is opened in a V shape on the surface of the composite packaging bag (1).

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