A compressible mixed packaging bag

Abstract

This utility model discloses a compressible mixed packaging bag, relating to the field of packaging bag production technology. It includes a main body of the packaging bag, with a sealing edge fixedly connected to its outer side and a loose sealing edge inside. A first seal and a second seal are fixedly connected to the top of the main body. A trapezoidal strip is fixedly connected to one side of the first seal, and a sealing groove is formed on one side of the second seal. The outer side of the trapezoidal strip abuts against the inside of the sealing groove. The main body of the packaging bag consists of an inner layer, a middle layer, and an outer layer. This compressible mixed packaging bag utilizes the flexibility, waterproofness, and stability of polyethylene for food contact, the high toughness and puncture resistance of nylon for tear resistance, and the abrasion resistance and corrosion resistance of polypropylene for protection during transportation. This process simultaneously produces multiple layers of materials, resulting in high efficiency and low cost, and the multi-layer structure enhances overall strength and durability.

Description

Technical Field

[0001] This utility model relates to the field of packaging bag production technology, and in particular to a compressible mixed packaging bag. Background Technology

[0002] A packaging bag is a bag used to package goods, usually made of plastic, paper, cloth, or other materials. It has wide applications in daily life and business activities, primarily for protecting, transporting, and displaying goods.

[0003] While traditional mixed plastic packaging bags have a relatively mature production process, low cost, and can be quickly mass-produced, their relatively fragile structure makes them prone to tearing during logistics and transportation. This can lead to contamination or leakage of the contents. To address these issues, we have introduced a compressible mixed packaging bag. Utility Model Content

[0004] This utility model discloses a compressible mixed packaging bag, which improves upon the existing structure and its shortcomings to provide a compressible mixed packaging bag with better practical value.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A compressible mixed packaging bag includes a main body of the packaging bag, a sealing edge fixedly connected to the outer side of the main body of the packaging bag, a loose sealing edge provided inside the main body of the packaging bag, a first seal and a second seal fixedly connected to the top of the main body of the packaging bag, a trapezoidal strip fixedly connected to one side of the first seal, and a sealing groove opened on one side of the second seal, with the outer side of the trapezoidal strip abutting against the inside of the sealing groove, and the main body of the packaging bag is composed of an inner layer, a middle layer and an outer layer.

[0007] In a preferred embodiment, the inner layer is disposed at the innermost part of the packaging bag body, the middle layer is disposed on the outer side of the inner layer, and the outer layer is disposed on the outer side of the middle layer.

[0008] In a preferred embodiment, the inner layer is made of polyethylene.

[0009] In a preferred embodiment, the intermediate layer is made of nylon material.

[0010] In a preferred embodiment, the outer layer is made of polypropylene.

[0011] In a preferred embodiment, the inner layer, intermediate layer, and outer layer are formed by co-extrusion blow molding.

[0012] The compressible mixing packaging bag provided by this utility model has the following advantages:

[0013] Firstly, by using packaging bags formed by co-extrusion blow molding of inner, middle and outer layers, polyethylene has good flexibility, water resistance and chemical stability, making it suitable for direct contact with food or other sensitive items. Nylon has high toughness and good puncture resistance, which can significantly improve the puncture resistance of the packaging bag and reduce the risk of bag breakage. Polypropylene has good abrasion resistance and chemical corrosion resistance, which can provide additional protection and prevent the packaging bag from being damaged by friction during transportation.

[0014] Secondly, co-extrusion blow molding can achieve simultaneous production of multiple layers of materials, improve production efficiency, reduce production costs, and ensure the stability of product quality. The multi-layer structure can improve the overall strength and durability of the packaging bag. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of a compressible mixed packaging bag proposed in this utility model.

[0016] Figure 2 This is a cross-sectional schematic diagram of a compressible mixing packaging bag proposed in this utility model.

[0017] Figure 3 This utility model proposes a compressible mixing packaging bag. Figure 2 Enlarged diagram of point A in the middle.

[0018] Figure 4 This utility model proposes a compressible mixing packaging bag. Figure 2 Enlarged diagram of point B in the middle.

[0019] Figure 5 This is a schematic diagram of the internal structure of a compressible mixing packaging bag proposed in this utility model.

[0020] In the attached diagram: 1. Main body of the packaging bag; 2. Sealing edge; 3. Loose sealing edge; 4. First seal; 5. Trapezoidal strip; 6. Second seal; 7. Sealing groove; 8. Inner layer; 9. Middle layer; 10. Outer layer. Detailed Implementation

[0021] The technical solution of this utility model will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] It should be noted that, in the context of use, the terms up, down, left, right, front, back, top, bottom, forward, reverse, clockwise, and counterclockwise in the following description are used merely for convenience and do not imply any specific fixed direction. In fact, they are used to reflect the relative positions and / or orientations between the various parts of the object and therefore should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] It should be noted that, in practice, unless otherwise explicitly specified and limited, the terms "installation," "fixing," and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; a structural connection or a mechanical connection; a direct connection or an indirect connection via an intermediate medium; or a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances. Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0024] It should be noted that these and subsequent accompanying drawings are merely illustrative and are not drawn to scale, and should not be construed as limiting the scope of protection of this utility model. Furthermore, variations in different embodiments can be appropriately combined. The components of the embodiments described and marked in the accompanying drawings can typically be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of this application provided in the drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0025] The compressible mixed packaging bag disclosed in this utility model is mainly used in packaging bag scenarios.

[0026] Reference Figures 1 to 5 A compressible mixed packaging bag includes: a packaging bag body 1, a sealing edge 2 fixedly connected to the outer side of the packaging bag body 1, a loose sealing edge 3 provided inside the packaging bag body 1, a first seal 4 and a second seal 6 fixedly connected to the top of the packaging bag body 1 respectively, a trapezoidal strip 5 fixedly connected to one side of the first seal 4, a sealing groove 7 opened on one side of the second seal 6, the outer side of the trapezoidal strip 5 abutting against the inside of the sealing groove 7, and the packaging bag body 1 is composed of an inner layer 8, a middle layer 9 and an outer layer 10;

[0027] The inner layer 8 is located at the innermost part of the main body 1 of the packaging bag, the middle layer 9 is located on the outside of the inner layer 8, and the outer layer 10 is located on the outside of the middle layer 9.

[0028] The inner layer 8 is made of polyethylene material;

[0029] The middle layer 9 is made of nylon material;

[0030] The outer layer 10 is made of polypropylene material;

[0031] The inner layer 8, the middle layer 9, and the outer layer 10 are formed by co-extrusion blow molding.

[0032] In the above technical solution, considering that although traditional mixed plastic packaging bags have relatively mature production processes, low costs, and can quickly achieve large-scale mass production, their relatively fragile structure makes them prone to tearing during logistics and transportation, leading to contamination or leakage of the contents. To solve this problem, the specific operation is as follows: By setting equidistant false seals 3 inside the main body 1 of the packaging bag, different items can be packaged separately in the same bag during production. Subsequently, the outlet of the packaging bag is sealed using the first seal 4, trapezoidal strip 5, second seal 6, and sealing groove 7. These false seals can be torn open as needed, facilitating mixed use by the user. By using packaging bags formed by co-extrusion blow molding of an inner layer 8, a middle layer 9, and an outer layer 10, polyethylene, with its good flexibility, water resistance, and chemical stability, is suitable for direct contact with food or other sensitive items. Nylon, with its high toughness and good puncture resistance, can significantly improve the puncture resistance of the packaging bag and reduce the risk of bag breakage. Polypropylene, with its good abrasion resistance and chemical corrosion resistance, can provide additional protection to prevent the packaging bag from being damaged by friction during transportation. The co-extrusion blow molding process can realize the simultaneous production of multiple layers of materials, improve production efficiency, reduce production costs, and at the same time ensure the stability of product quality. The multi-layer structure can improve the overall strength and durability of the packaging bag.

[0033] Working principle: In use, by setting equidistant false seals 3 inside the main body 1 of the packaging bag, different items can be classified and packaged in the same packaging bag during the production process. Subsequently, the outlet of the packaging bag is sealed using the first seal 4, trapezoidal strip 5, second seal 6, and sealing groove 7. These false seals can be torn open as needed, facilitating mixed use by the user. All contents not described in detail in this manual are existing technologies known to those skilled in the art.

[0034] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A compressible mixing packaging bag, comprising a bag body (1), characterized in that, The outer side of the main body (1) of the packaging bag is fixedly connected with a sealing edge (2), and the inside of the main body (1) of the packaging bag is provided with a false sealing edge (3). The top of the main body (1) of the packaging bag is fixedly connected with a first seal (4) and a second seal (6). A trapezoidal strip (5) is fixedly connected to one side of the first seal (4), and a sealing groove (7) is opened on one side of the second seal (6). The outer side of the trapezoidal strip (5) abuts against the inside of the sealing groove (7). The main body (1) of the packaging bag consists of an inner layer (8), a middle layer (9) and an outer layer (10).

2. The compressible mixing packaging bag according to claim 1, characterized in that, The inner layer (8) is located at the innermost part of the main body (1) of the packaging bag, the middle layer (9) is located on the outside of the inner layer (8), and the outer layer (10) is located on the outside of the middle layer (9).

3. The compressible mixing packaging bag according to claim 1, characterized in that, The inner layer (8) is made of polyethylene material.

4. The compressible mixing packaging bag according to claim 1, characterized in that, The intermediate layer (9) is made of nylon material.

5. A compressible mixing packaging bag according to claim 1, characterized in that, The outer layer (10) is made of polypropylene.

6. A compressible mixing packaging bag according to claim 1, characterized in that, The inner layer (8), the middle layer (9) and the outer layer (10) are formed by co-extrusion blow molding.

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