High-strength tensile packaging bag

By using tensile and torsion plates in packaging bags, combined with specific materials, the problem of insufficient tensile strength of packaging bags is solved, achieving high strength of packaging bags and stable storage of goods.

CN223533975UActive Publication Date: 2025-11-11ZHEJIANG QINGLAN NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202421662783.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-11-11
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

Existing packaging bags have low tensile strength and are easily damaged when filled with heavy objects. Furthermore, items inside the packaging bags are subject to compression damage due to inconsistent shapes and sizes.

Method used

The high-strength tensile packaging bag design enhances tensile strength by installing tensile and torsion plates on the bag body and bottom, combined with aluminum foil, nylon, and linear low-density polyethylene materials, and a rigid plate is installed at the bottom of the bag to stabilize its shape.

Benefits of technology

It improves the tensile strength of the packaging bag, prevents breakage, maintains the original shape of the goods, and reduces crush damage.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a high-strength stretch-proof packaging bag, which relates to the field of packaging bags and comprises a packaging bag bottom, a packaging bag body is fixedly mounted at the top of the packaging bag bottom, two handles are fixedly mounted at the top of the packaging bag body, fixing pieces are fixedly mounted on the surfaces of the bottoms of the handles, and the fixing pieces are fixedly connected with the packaging bag bottom. One side of the fixing piece is fixedly installed on the surface of the packaging bag body. According to the packaging bag, an object is placed in the packaging bag body through the opening in the top of the packaging bag body, the first tensile sheet is made of nylon, and the second tensile sheet is made of linear low-density polyethylene, so that the packaging bag has higher tensile property; the packaging bag has higher tensile strength when the third tensile sheet is made of aluminum foil and combined with the packaging bag body, force borne by the packaging bag is shared through the torsion resistance and tensile strength of the first torsion sheet and the second torsion sheet, and the packaging bag is more perfect through the stability of the hard sheet fixedly installed at the bottom and the top of the packaging bag.
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Description

Technical Field

[0001] This utility model relates to the field of packaging bag technology, and in particular to high-strength tensile packaging bags. Background Technology

[0002] Packaging bags are bags used to package various goods, facilitating transportation and storage during production and distribution. They are widely used in daily life and industrial production. Actual figures show that 80% of used plastic bags end up in landfills like regular garbage, with only 7% being recycled. The commercial nature of packaging itself is becoming increasingly prominent; it has become a special product no longer dependent on commodity production.

[0003] When items are placed inside a packaging bag, the existing packaging bags have low tensile strength. When using packaging bags to hold heavy objects, the packaging bags may break, damaging the items inside. Furthermore, when items are placed inside packaging bags, the shapes and sizes of the items vary, and the bottom of the packaging bag may deform, causing the items to be squeezed inside the packaging bag and damaging them. Utility Model Content

[0004] The purpose of this invention is to solve the problems existing in the prior art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a high-strength tensile-resistant packaging bag, comprising: a packaging bag bottom, a packaging bag body fixedly installed on the top of the packaging bag bottom, a handle fixedly installed on the top of the packaging bag body, and two handles, a fixing piece fixedly installed on the bottom surface of the handle, and one side of the fixing piece fixedly installed on the surface of the packaging bag body.

[0006] In a preferred embodiment, a first tensile sheet is fixedly installed on one side of the bottom of the packaging bag, a second tensile sheet is fixedly installed on the other side of the first tensile sheet, and the other side of the second tensile sheet is fixedly installed on the other side of the bottom of the packaging bag.

[0007] In a preferred embodiment, an anti-tensile sheet is fixedly installed inside the packaging bag.

[0008] In a preferred embodiment, an anti-torsion piece is fixedly installed on the surface of the packaging bag body, an anti-torsion piece is fixedly installed on the bottom of the packaging bag bottom, and one end of the anti-torsion piece is fixedly installed on the bottom of the fixing piece.

[0009] In a preferred embodiment, an anti-torsion plate is fixedly fitted onto the surface of the packaging bag.

[0010] In a preferred embodiment, a rigid sheet is fixedly mounted on the top of the bottom of the packaging bag.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. This utility model involves placing items into the packaging bag through the opening at the top of the bag body, placing it on top of the bottom of the bag. The third tensile sheet is made of aluminum foil, which, although having limited inherent elongation, enhances the overall tensile strength and provides good barrier properties when combined with other plastic films. The combination of the third tensile sheet and the packaging bag body makes the bag more robust. The first tensile sheet is made of nylon, possessing high strength, high toughness, and good wear resistance, significantly improving the tensile strength of the packaging bag. The second tensile sheet is made of linear low-density polyethylene (LLDPE). High-density polyethylene (HDPE) possesses excellent tensile strength and toughness. The packaging bag exhibits enhanced tensile strength through the use of tensile-resistant sheet one and tensile-resistant sheet two. Anti-torsion sheet one wraps around the bottom of the packaging bag and the surface of the bag body, while anti-torsion sheet two is fitted onto the surface of the bag body. When the bag is filled with goods, the forces acting on the packaging bag are distributed according to the torsional and tensile strength of anti-torsion sheets one and two, thereby enhancing the bag's tensile strength and making it more stable when packaging goods, preventing damage to the goods due to bag breakage.

[0013] 2. In this utility model, when items are placed into the packaging bag, the rigid sheet fixedly installed at the bottom and top of the packaging bag provides a certain degree of stability, so that when the packaging bag contains items of various shapes and sizes, the packaging bag body will not deform, allowing the items to be placed better inside the packaging bag, reducing the squeezing between items caused by the deformation of the packaging bag body, and allowing the items to better maintain their original shape, thus making the packaging bag more perfect. Attached Figure Description

[0014] Figure 1 A side view of the high-strength tensile packaging bag provided by this utility model;

[0015] Figure 2 Cutting diagram of the packaging bag body for the high-strength tensile packaging bag provided by this utility model;

[0016] Figure 3 Cutting diagram of the bottom of the high-strength tensile packaging bag provided by this utility model;

[0017] Figure 4 A side view of the rigid sheet of the high-strength tensile packaging bag provided by this utility model.

[0018] Legend:

[0019] 1. Packaging bag bottom; 101. Tensile sheet one; 102. Tensile sheet two; 2. Packaging bag body; 201. Tensile sheet three; 3. Handle; 4. Fixing piece; 5. Torsion sheet one; 6. Torsion sheet two; 7. Rigid sheet. Detailed Implementation

[0020] 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.

[0021] Please see Figure 1-4 This utility model provides a technical solution: a high-strength tensile-resistant packaging bag, including: a packaging bag bottom 1, a packaging bag body 2 fixedly installed on the top of the packaging bag bottom 1, a handle 3 fixedly installed on the top of the packaging bag body 2, and the number of handles 3 is two, a fixing piece 4 fixedly installed on the bottom surface of the handle 3, and one side of the fixing piece 4 fixedly installed on the surface of the packaging bag body 2.

[0022] Specifically: the handle 3 fixedly installed on the top of the packaging bag body 2 enables the packaging bag to be lifted better, and the fixing piece 4 fixedly installed on the surface of the handle 3 makes the handle 3 more stably installed on the top of the packaging bag body 2.

[0023] In one embodiment, a tensile sheet 101 is fixedly installed on one side inside the bottom of the packaging bag 1, a tensile sheet 102 is fixedly installed on the other side of the tensile sheet 101, and the other side of the tensile sheet 102 is fixedly installed on the other side inside the bottom of the packaging bag 1.

[0024] Specifically: The tensile sheet 101 inside the bottom of the packaging bag is made of nylon, which has high strength, high toughness and good wear resistance, and can significantly improve the tensile performance of the packaging bag. The tensile sheet 102 is made of linear low-density polyethylene, which has good tensile properties and toughness. The tensile sheets 101 and 102 together give the packaging bag higher tensile performance when it is filled with goods, making the packaging more stable and preventing the goods inside the packaging bag from being damaged due to packaging bag breakage, thus making the packaging bag more perfect.

[0025] In one embodiment, an anti-tensile sheet 201 is fixedly installed inside the packaging bag body 2.

[0026] Specifically: The tensile sheet 3201 is made of aluminum foil. Although its extensibility is limited, when combined with other plastic films, it can enhance the overall tensile strength and provide good barrier properties. The tensile sheet 3201 is installed inside the packaging bag body 2. The combination of the tensile sheet 3201 and the packaging bag body 2 makes the packaging bag more robust and its tensile strength more stable.

[0027] In one embodiment, an anti-torsion piece 5 is fixedly installed on the surface of the packaging bag body 2, and an anti-torsion piece 5 is fixedly installed on the bottom of the packaging bag bottom 1. One end of the anti-torsion piece 5 is fixedly installed on the bottom of the fixing piece 4.

[0028] Specifically: the anti-torsion plate 5 is wrapped around the bottom of the packaging bag bottom 1 and the surface of the packaging bag body 2. When the packaging bag is full of items, the anti-torsion and tensile properties of the anti-torsion plate 5 distribute the force on the packaging bag, making the tensile properties of the packaging bag more stable.

[0029] In one embodiment, an anti-torsion plate 6 is fixedly fitted onto the surface of the packaging bag body 2.

[0030] Specifically: the anti-torsion plate 26 is set on the surface of the packaging bag body 2. Based on the torsional and tensile properties of the anti-torsion plate 26, the force on the packaging bag is distributed, so that the packaging bag can better package the goods.

[0031] In one embodiment, a rigid sheet 7 is fixedly mounted on the top of the bottom 1 of the packaging bag.

[0032] Specifically: The rigid plate 7 fixedly installed at the top of the bottom 1 of the packaging bag has a certain degree of stability, so that when the packaging bag is used to pack items of different shapes and sizes, the packaging bag body 2 will not deform, allowing the items to be placed better inside the packaging bag, reducing the squeezing caused by the deformation of the packaging bag body 2 between items, and allowing the items to better maintain their original shape, thus making the packaging bag more perfect.

[0033] Working Principle: Items are placed inside the packaging bag 2 through the opening at the top, positioned on top of the bottom 1. Tensile sheet 3 (201) is made of aluminum foil; although its inherent elongation is limited, when combined with other plastic films, it enhances the overall tensile strength and provides good barrier properties. The combination of tensile sheet 3 (201) and packaging bag 2 makes the bag more robust. Tensile sheet 1 (101) is made of nylon, possessing high strength, high toughness, and good abrasion resistance, significantly improving the bag's tensile strength. Tensile sheet 2 (102) is made of linear low-density polyethylene, exhibiting good tensile strength and toughness. The combination of tensile sheets 1 (101) and 102 gives the bag even higher tensile strength. Torsion sheet 5 wraps around the packaging bag. The bottom of the bottom 1 and the surface of the packaging bag body 2 are fitted with anti-torsion plates 6. When the packaging bag is full of items, the force on the packaging bag is distributed according to the torsional and tensile properties of the anti-torsion plates 5 and 6, thereby giving the packaging bag higher tensile strength and making the packaging bag more stable when packaging items, preventing damage to the items due to packaging bag breakage. When items are placed into the packaging bag, the rigid plate 7 fixedly installed at the top of the bottom 1 of the packaging bag provides a certain degree of stability, so that the packaging bag body 2 will not deform when packing items of various shapes and sizes, allowing the items to be placed better inside the packaging bag, reducing the squeezing caused by the deformation of the packaging bag body 2 between items, and allowing the items to better maintain their original shape, thus making the packaging bag more perfect.

[0034] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A high-strength, tensile-resistant packaging bag, characterized in that, include: The packaging bag bottom (1) has a packaging bag body (2) fixedly installed on the top of the packaging bag bottom (1). The packaging bag body (2) has a handle (3) fixedly installed on the top of the packaging bag body (2), and there are two handles (3). A fixing piece (4) is fixedly installed on the bottom surface of the handle (3). One side of the fixing piece (4) is fixedly installed on the surface of the packaging bag body (2). A tensile sheet one (101) is fixedly installed on one side inside the packaging bag bottom (1). A tensile sheet two (102) is fixedly installed on the other side of the tensile sheet one (101). The other side of the tensile sheet two (102) is fixedly installed on the other side inside the packaging bag bottom (1). A tensile sheet three (201) is fixedly installed inside the packaging bag body (2).

2. The high-strength tensile packaging bag according to claim 1, characterized in that: An anti-torsion piece (5) is fixedly installed on the surface of the packaging bag body (2), and an anti-torsion piece (5) is fixedly installed on the bottom of the packaging bag bottom (1). One end of the anti-torsion piece (5) is fixedly installed on the bottom of the fixing piece (4).

3. The high-strength tensile packaging bag according to claim 1, characterized in that: The surface of the packaging bag (2) is fixedly fitted with an anti-torsion plate (6).

4. The high-strength tensile packaging bag according to claim 1, characterized in that: A rigid sheet (7) is fixedly installed on the top of the bottom (1) of the packaging bag.