A high-strength, environmentally friendly non-woven packaging bag

CN224703575UActive Publication Date: 2026-09-01WENZHOU XINWEI PLASTIC PROD CO LTD
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Patent Information

Application Number
CN202522263639.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-27
Publication Date
2026-09-01
Estimated Expiration
2035-10-27

AI Technical Summary

Technical Problem

然而,现有无纺布包装袋在实际使用中仍存在明显技术缺陷,难以满足用户对承重能力和耐用性的需求:传统无纺布包装袋多依赖袋体自身材质或简单缝制的提手实现承载,提手与袋体的连接部位易因受力集中发生撕裂,尤其在装载较重物品(如生鲜、日用品、工业零件等)时,提手脱落、袋体破损的问题频发,导致包装失效、物品损坏;

Benefits of technology

[0011]本实用新型中,加强绳组件中,穿绳依次贯穿顶孔和底孔并与底端外侧的塑胶垫片固定,形成“顶部提拉-底部支撑”的受力闭环——塑胶垫片可将穿绳对袋体底端的局部拉力分散为面状压力,避免底孔因集中受力发生撕裂;同时,横绳直径大于穿绳直径,不仅提升了提手部位的承重强度,还能减少手部提拉时的勒痛感。此外,横绳与穿绳连接处套设的中空环状堵头,其外径大于顶孔内径,可牢牢卡在顶孔外侧,既防止穿绳从顶孔中滑脱,又避免了横绳与穿绳的连接部位因反复受力发生断裂,大幅延长了包装袋的使用寿命。

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Abstract

This utility model relates to the technical field of non-woven packaging bag structure, specifically to a high-strength environmentally friendly non-woven packaging bag, including a non-woven bag body. Top and bottom holes are provided on both sides of the top and bottom ends of the non-woven bag body. A reinforcing rope assembly is inserted between the top and bottom holes. The reinforcing rope assembly includes horizontal ropes at both ends, threaded ropes fixed to both sides of the horizontal ropes, and pads connected to the threaded ropes. Each threaded rope passes through the top and bottom holes sequentially and is fixedly connected to one end of the pad. The threaded ropes pass through the top and bottom holes sequentially and are fixed to the plastic pad on the outer side of the bottom end, forming a closed-loop force distribution of "top lifting - bottom support." The plastic pad can disperse the local tension of the threaded ropes on the bottom of the bag body into planar pressure, preventing the bottom hole from tearing due to concentrated force. Simultaneously, the diameter of the horizontal ropes is larger than the diameter of the threaded ropes, which not only increases the load-bearing strength of the handle but also reduces the pain when lifting the bag.
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Description

Technical Field

[0001] This utility model relates to the field of nonwoven packaging bag structure technology, specifically to a high-strength environmentally friendly nonwoven packaging bag. Background Technology

[0002] With the popularization of environmental protection concepts, non-woven packaging bags, due to their reusability and biodegradability, are gradually replacing traditional plastic bags and are widely used in shopping, logistics packaging, industrial storage, and other fields. However, existing non-woven packaging bags still have obvious technical defects in actual use, making it difficult to meet users' needs for load-bearing capacity and durability: traditional non-woven packaging bags mostly rely on the material of the bag body itself or simply sewn handles to achieve load-bearing capacity. The connection between the handle and the bag body is prone to tearing due to concentrated stress. Especially when loading heavy items (such as fresh produce, daily necessities, industrial parts, etc.), the problems of handles falling off and bag damage occur frequently, leading to packaging failure and damage to the goods. Furthermore, although some packaging bags are equipped with drawstring handles, the perforation between the drawstring and the bag body lacks a protective structure. During repeated pulling, the drawstring is prone to wear and tear on the bag fibers, causing the perforation to enlarge and the drawstring to loosen. At the same time, the connection between the drawstring and the main body of the handle is often just a direct knot or simple sewing, which is prone to breakage after long-term stress, shortening the service life of the packaging bag. Utility Model Content

[0003] Technical problems to be solved In view of the above-mentioned shortcomings of the existing technology, the present invention provides a high-strength environmentally friendly non-woven packaging bag, which can effectively solve the problems in the existing technology.

[0004] Technical solution

[0005] This utility model provides a high-strength environmentally friendly non-woven packaging bag, including a non-woven bag body. The top and bottom sides of the non-woven bag body are provided with a top hole and a bottom hole. A reinforcing rope assembly is inserted between the top hole and the bottom hole. The reinforcing rope assembly includes horizontal ropes at both ends, threaded ropes fixed to both sides of the horizontal ropes, and pads connected to the threaded ropes.

[0006] Furthermore, each set of ropes passes sequentially through the top hole and the bottom hole, and is fixedly connected to one end of the gasket.

[0007] Furthermore, the gasket is disposed on the outer side of the bottom end of the nonwoven bag body, and the gasket is made of plastic.

[0008] Furthermore, the size of the threaded rope is adapted to the size of the top hole and the bottom hole, and the diameter of the horizontal rope is larger than the diameter of the threaded rope.

[0009] Furthermore, a plug is fitted at the connection between the horizontal rope and the threaded rope. The plug is a hollow ring structure, and the outer diameter of the plug is larger than the inner diameter of the top hole.

[0010] Beneficial effects

[0011] In this invention, the reinforcing rope assembly has the rope passing through the top and bottom holes sequentially and fixed to a plastic gasket on the outer side of the bottom, forming a closed-loop force distribution of "top lifting - bottom support." The plastic gasket disperses the localized tension of the rope on the bottom of the bag into planar pressure, preventing the bottom hole from tearing due to concentrated force. Simultaneously, the diameter of the horizontal rope is larger than that of the rope, which not only increases the load-bearing strength of the handle but also reduces the pain when lifting. Furthermore, the hollow annular plug fitted at the connection between the horizontal rope and the rope has an outer diameter larger than the inner diameter of the top hole, allowing it to be firmly secured to the outside of the top hole. This prevents the rope from slipping out of the top hole and avoids breakage at the connection between the horizontal rope and the rope due to repeated stress, significantly extending the service life of the packaging bag.

[0012] In this device, the rope size is precisely matched with the top and bottom hole sizes, ensuring that the rope can be smoothly threaded into the hole while preventing the rope from shaking and rubbing inside the hole due to excessive hole diameter, thus reducing wear on the bag fibers. The double fixing structure of the plug and gasket restricts the displacement of the reinforcing rope assembly from both the top and bottom, keeping the entire reinforcing structure stable at all times. Even when loading heavy items or repeatedly lifting, there will be no problem of the rope coming loose or the handle shifting. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is an exploded view of the structure of this utility model; Figure 3 This is a cross-sectional view of the structure of this utility model.

[0015] The labels in the diagram represent: 1. Non-woven bag body; 11. Top hole; 12. Bottom hole; 13. End cap; 2. Reinforcing rope assembly; 21. Horizontal rope; 22. Threaded rope; 23. Gasket. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Example: A high-strength, environmentally friendly non-woven packaging bag, see attached figure. Figure 1 -Appendix Figure 3 The bag includes a non-woven fabric bag body 1. Both the top and bottom sides of the non-woven fabric bag body 1 have a top hole 11 and a bottom hole 12. A reinforcing rope assembly 2 is inserted between the top hole 11 and the bottom hole 12. The reinforcing rope assembly 2 includes horizontal ropes 21 at both ends, threaded ropes 22 fixed to both sides of the horizontal ropes 21, and a pad 23 connected to the threaded ropes 22. In the reinforcing rope assembly 2, the threaded ropes 22 pass through the top hole 11 and the bottom hole 12 in sequence and are fixed to the plastic pad 23 on the outer side of the bottom end, forming a closed-loop force distribution of "top lifting - bottom support." The plastic pad 23 can disperse the local tension of the threaded ropes 22 on the bottom end of the bag body into a planar pressure, preventing the bottom hole 12 from tearing due to concentrated force. At the same time, the diameter of the horizontal ropes 21 is larger than the diameter of the threaded ropes 22, which not only increases the load-bearing strength of the handle but also reduces the pain when lifting the bag. In addition, the hollow annular plug 13 fitted at the connection between the horizontal rope 21 and the threaded rope 22 has an outer diameter larger than the inner diameter of the top hole 11, which can be firmly locked on the outside of the top hole 11. This not only prevents the threaded rope 22 from slipping out of the top hole 11, but also avoids the connection between the horizontal rope 21 and the threaded rope 22 from breaking due to repeated stress, thus greatly extending the service life of the packaging bag.

[0019] Each set of ropes 22 passes through the top hole 11 and the bottom hole 12 in sequence and is fixedly connected to one end of the gasket 23. The size of the ropes 22 is precisely matched with the size of the top hole 11 and the bottom hole 12, which not only ensures that the ropes 22 can be smoothly inserted into the holes, but also avoids the ropes 22 from shaking and rubbing in the holes due to the large hole diameter, thus reducing the wear of the bag fibers. The double fixing structure of the plug 13 and the gasket 23 restricts the displacement of the reinforcing rope assembly 2 from both the top and the bottom, so that the entire reinforcing structure always remains stable. Even when loading heavy items or repeatedly lifting, there will be no problem of the ropes 22 coming loose or the handle shifting.

[0020] The gasket 23 is located on the outer bottom of the non-woven bag body 1, and the gasket 23 is made of plastic. The size of the threaded rope 22 is adapted to the size of the top hole 11 and the bottom hole 12, and the diameter of the horizontal rope 21 is larger than the diameter of the threaded rope 22. A plug 13 is fitted at the connection between the horizontal rope 21 and the threaded rope 22. The plug 13 is a hollow ring structure, and the outer diameter of the plug 13 is larger than the inner diameter of the top hole 11. The core reinforcing components of this packaging bag (horizontal rope 21, threaded rope 22, plug 13, and gasket 23) are all made of environmentally friendly materials that are highly compatible with non-woven fabric (such as biodegradable plastic gasket 23 and environmentally friendly fiber rope). After disposal, they can degrade together with the non-woven bag body 1 without causing environmental pollution. This design avoids the drawbacks of traditional, non-environmentally friendly reinforcement components. Furthermore, the simple structure of the reinforcing rope assembly 2 eliminates the need for complex sewing or welding processes during production, facilitating mass production and minimizing increased production costs. This achieves a balance between high strength, environmental friendliness, and economy. The assembly process of the reinforcing rope assembly 2 simply involves threading the rope 22 through the hole, fixing the gasket 23, and attaching the plug 13. This simple process facilitates industrial mass production. Moreover, the optimized structure does not increase the overall volume or weight of the packaging bag, making it convenient for users to carry and store. It also addresses the pain points of traditional packaging bags, such as poor load-bearing capacity and easy breakage, as well as the discomfort caused by the handles, significantly improving user comfort.

[0021] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A high-strength, environmentally friendly non-woven packaging bag, characterized in that, The nonwoven bag includes a nonwoven bag body (1), with a top hole (11) and a bottom hole (12) through both the top and bottom ends of the nonwoven bag body (1). A reinforcing rope assembly (2) is inserted between the top hole (11) and the bottom hole (12). The reinforcing rope assembly (2) includes horizontal ropes (21) at both ends, threaded ropes (22) fixed to both sides of the horizontal ropes (21), and pads (23) connected to the threaded ropes (22).

2. The high-strength environmentally friendly non-woven packaging bag according to claim 1, characterized in that, Each set of the threaded ropes (22) passes through the top hole (11) and the bottom hole (12) in sequence and is fixedly connected to one end of the gasket (23).

3. The high-strength environmentally friendly non-woven packaging bag according to claim 1, characterized in that, The gasket (23) is located on the outer side of the bottom end of the nonwoven bag body (1), and the gasket (23) is made of plastic.

4. The high-strength environmentally friendly non-woven packaging bag according to claim 1, characterized in that, The size of the threaded rope (22) is adapted to the size of the top hole (11) and the bottom hole (12), and the diameter of the horizontal rope (21) is larger than the diameter of the threaded rope (22).

5. A high-strength environmentally friendly non-woven packaging bag according to claim 4, characterized in that, A plug (13) is fitted at the connection between the horizontal rope (21) and the threaded rope (22). The plug (13) is a hollow ring structure, and the outer diameter of the plug (13) is larger than the inner diameter of the top hole (11).