Packaging bag not prone to being damaged

The packaging bag design with a multi-layer composite film structure solves the problem of easy damage to plastic packaging bags, achieving higher structural strength and durability, and is suitable for bearing heavy objects and heat-resistant environments.

CN223935341UActive Publication Date: 2026-02-24GUANGDONG XIANGCHENG NEW MATERIALS TECHNOLOGY CO LTD
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Patent Information

Application Number
CN202520649872.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-08
Publication Date
2026-02-24
Estimated Expiration
2035-04-08

AI Technical Summary

Technical Problem

Existing plastic packaging bags are easily damaged, especially when subjected to heavy objects or friction, which affects the integrity of the packaging and causes waste of resources.

Method used

The multi-layer composite film structure, including square composite film of PE material and arc-shaped composite film of PP material, is used to make a composite packaging bag through one-piece molding, which enhances the structural strength and support.

Benefits of technology

It improves the durability and damage resistance of packaging bags, enabling them to maintain bag integrity when bearing heavy loads, reducing tears and stretching, and is suitable for environments requiring heat resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a packing bag not easy to damage, which relates to the field of packing bags and comprises a packing bag body, the packing bag body comprises a composite packing bag and two groups of arc-shaped openings, the arc-shaped openings are symmetrically arranged on two sides of the top of the composite packing bag, and the composite packing bag and multiple layers of composite films are integrally formed. The composite packaging bag comprises two sets of square composite films, two sets of first arc-shaped composite films, a second arc-shaped composite film and a reinforcing bottom film, the two sets of square composite films are connected through the two sets of first arc-shaped composite films, and the top end of the second arc-shaped composite film is fixedly connected with the two sets of square composite films and the bottom ends of the two sets of first arc-shaped composite films. According to the packaging bag not prone to being damaged, the packaging bag is made of multiple layers of composite materials, has high supporting performance and wrapping performance, can guarantee completeness of the bag body when bearing heavy objects, avoids the situation of crevasse or excessive stretching, and has better structural strength compared with a common single-layer plastic bag.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bags, specifically a packaging bag that is not easily damaged. Background Technology

[0002] Plastic packaging bags are bags made primarily of plastic and used for packaging various items. They are typically made from plastic materials such as polyethylene, polypropylene, and polyvinyl chloride, and processed through techniques such as blow molding, casting, and hot pressing. Plastic packaging bags are lightweight, durable, moisture-proof, dust-proof, transparent, or light-blocking, effectively protecting the contents, extending shelf life, and facilitating carrying and storage.

[0003] Existing plastic packaging bags are generally prone to breakage in practical use. While lightweight and inexpensive, these bags are easily torn or damaged when subjected to even slightly sharp objects or heavy pressure. Many plastic packaging bags are made of thin materials with insufficient tensile strength and abrasion resistance, making them susceptible to breakage during transportation, handling, or storage under external forces. This not only affects the integrity and hygiene of the packaged goods but also potentially leads to resource waste and environmental pollution. The problem of plastic packaging bag breakage is particularly prominent in situations requiring the packaging to withstand weight or friction, such as express delivery packaging and heavy-duty handling. Therefore, improving the durability and breakage resistance of plastic packaging bags has become an urgent issue for the packaging industry. Summary of the Invention

[0004] The purpose of this utility model is to provide a packaging bag that is not easily damaged, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a packaging bag that is not easily damaged, comprising a packaging bag body, the packaging bag body comprising a composite packaging bag and an arc-shaped opening, the arc-shaped opening having two sets symmetrically opened on both sides of the top of the composite packaging bag, the composite packaging bag being integrally formed from a multi-layer composite film.

[0006] Preferably, the composite packaging bag includes a square composite film, a first arc-shaped composite film, a second arc-shaped composite film, and a reinforcing bottom film. The square composite film is provided in two sets, and the two sets of square composite films are connected by two sets of first arc-shaped composite films. The top of the second arc-shaped composite film is fixedly connected to the bottom of the two sets of square composite films and the two sets of first arc-shaped composite films. The reinforcing bottom film is fixedly connected to the outer wall of the bottom end of the second arc-shaped composite film.

[0007] Preferably, the second arc-shaped composite membrane has an arc-shaped upper end and a straight lower end.

[0008] Preferably, the square composite film is made of PE material, and the first arc-shaped composite film and the second arc-shaped composite film are made of PP material.

[0009] Preferably, both the second arc-shaped composite film and the reinforcing base film have an arc-shaped top surface design.

[0010] Compared with the prior art, the beneficial effects of this utility model are:

[0011] This utility model proposes a packaging bag that is not easily damaged, comprising a main body of the packaging bag, which includes a composite packaging bag and an arc-shaped opening. The arc-shaped opening is provided in two sets and symmetrically opened on both sides of the top of the composite packaging bag. The composite packaging bag is integrally formed from multiple layers of composite film. This packaging bag is made of multiple layers of composite material, which has strong support and wrapping properties. It can ensure the integrity of the bag when bearing heavy objects and will not tear or be overstretched. Compared with ordinary single-layer plastic bags, it has better structural strength. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings:

[0013] Figure 1 This is a schematic diagram of the packaging bag that is not easily damaged according to this utility model. Figure 1 ;

[0014] Figure 2 This is a schematic diagram of the packaging bag that is not easily damaged according to this utility model. Figure 2 ;

[0015] Figure 3 This is a schematic diagram of the packaging bag that is not easily damaged according to this utility model. Figure 3 .

[0016] As shown in the figure: 1. Main body of the packaging bag; 11. Composite packaging bag; 111. Square composite film; 112. First arc-shaped composite film; 113. Second arc-shaped composite film; 114. Reinforcing bottom film; 12. Arc-shaped opening. Detailed Implementation

[0017] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0018] It should be noted that many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0019] Furthermore, it should be understood in the description of this utility model that the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0020] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral unit; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. However, specifying a direct connection indicates that the two entities connected are not linked by an intermediate structure but are connected as a whole through a transmission structure. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0021] In this utility model, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0022] Please see Figures 1 to 3 This utility model provides a technical solution: a packaging bag that is not easily damaged, including a packaging bag body 1, the packaging bag body 1 including a composite packaging bag 11 and an arc-shaped opening 12, the arc-shaped opening 12 is provided in two sets and symmetrically opened on both sides of the top of the composite packaging bag 11, the composite packaging bag 11 is integrally formed by multiple layers of composite film, the packaging bag 1 is made of multiple layers of composite material, has strong support and wrapping properties, can ensure the integrity of the bag when bearing heavy objects, and will not have tears or excessive stretching, and has better structural strength than ordinary single-layer plastic bags;

[0023] The composite packaging bag 11 includes a square composite film 111, a first arc-shaped composite film 112, a second arc-shaped composite film 113, and a reinforcing bottom film 114. The square composite film 111 is provided in two sets, and the two sets of square composite films 111 are connected by two sets of first arc-shaped composite films 112. The top end of the second arc-shaped composite film 113 is fixedly connected to the bottom end of the two sets of square composite films 111 and the two sets of first arc-shaped composite films 112. The reinforcing bottom film 114 is fixedly connected to the outer wall of the bottom end of the second arc-shaped composite film 113.

[0024] The second arc-shaped composite membrane 113 has an arc-shaped upper end and a straight lower end;

[0025] The square composite film 111 is made of PE material, while the first arc-shaped composite film 112 and the second arc-shaped composite film 113 are made of PP material.

[0026] Both the second arc-shaped composite membrane 113 and the reinforcing base membrane 114 have an arc-shaped top surface design;

[0027] The composite splicing design utilizes two different plastic materials. The PE square composite film 111 is not easily broken, can withstand heavy items, and has good elasticity, is not easily deformed, and will not crack even after long-term use. It also has high transparency, making it easy to identify the items inside the bag. The PP first arc-shaped composite film 112 and the second arc-shaped composite film 113 have high strength and can withstand greater external forces without easily breaking. When holding the items inside the bag, it is not easy for items to fall out. It can be used at high temperatures and is suitable for occasions requiring heat resistance. Even in summer, it is not easy to melt when placed on the ground after carrying items.

[0028] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.

[0029] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A packaging bag that is not easily damaged, characterized in that: The packaging bag body (1) includes a composite packaging bag (11) and an arc-shaped opening (12). The arc-shaped opening (12) has two sets and is symmetrically opened on both sides of the top of the composite packaging bag (11). The composite packaging bag (11) is integrally formed from a multi-layer composite film.

2. The packaging bag that is not easily damaged according to claim 1, characterized in that: The composite packaging bag (11) includes a square composite film (111), a first arc-shaped composite film (112), a second arc-shaped composite film (113), and a reinforcing bottom film (114). The square composite film (111) is provided in two sets, and the two sets of square composite films (111) are connected by two sets of the first arc-shaped composite films (112). The top of the second arc-shaped composite film (113) is fixedly connected to the bottom of the two sets of square composite films (111) and the two sets of the first arc-shaped composite films (112). The reinforcing bottom film (114) is fixedly connected to the outer wall of the bottom of the second arc-shaped composite film (113).

3. The packaging bag that is not easily damaged according to claim 2, characterized in that: The second arc-shaped composite membrane (113) has an arc-shaped upper end and a straight lower end.

4. A packaging bag that is not easily damaged according to claim 3, characterized in that: The square composite film (111) is made of PE material, while the first arc-shaped composite film (112) and the second arc-shaped composite film (113) are made of PP material.

5. A packaging bag that is not easily damaged according to claim 4, characterized in that: Both the second arc-shaped composite membrane (113) and the reinforced base membrane (114) have an arc-shaped top surface design.