Bubble packing bag for logistics

CN224690858UActive Publication Date: 2026-08-28LONGGANG HUALIAN FLEXIBLE PACKAGING CO LTD
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Patent Information

Application Number
CN202522299605.1
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-30
Publication Date
2026-08-28
Estimated Expiration
2035-10-30

AI Technical Summary

Technical Problem

[0002]气泡包装袋因其良好的缓冲、防震性能,被广泛应用于物流运输中对物品的防护,现有的气泡包装袋通常为固定尺寸的袋状结构,当包装小于袋体内部空间的物品时,袋内会存在多余空间,导致物品在运输过程中容易晃动,与袋壁发生碰撞,从而增加了物品损坏的风险,为了解决这一问题,操作人员通常需要额外使用填充物(如泡沫块、填充气囊或碎纸)来填充空隙,这不仅增加了包装材料的成本,也使得包装操作更为繁琐、效率低下

Benefits of technology

通过将第一延长边、第二延长边和卷绕侧边向内弯折,可以显著减小包装袋的有效容积,使袋体能够紧密地包裹不同尺寸的物品,有效防止物品在运输过程中晃动,提升了缓冲保护的可靠性;

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of logistics packaging, especially bubble packaging bag for logistics, including bag body, first relative two sides of bag body opening end are equipped with first extension edge and second extension edge respectively, two winding side edges are equipped with respectively in second relative two sides of bag body opening end, one end away from bag body of second extension edge is equipped with adhesive piece, the utility model discloses can significantly reduce the effective volume of packaging bag through the inward bending of first extension edge, second extension edge and winding side edge, make bag body can tightly wrap the article of different size, effectively prevent the article from shaking in the transportation process, improve the reliability of buffer protection, need not to look for and use additional filling material, only through folding own structure and using adhesive piece fixed can complete the packing, greatly simplify the packing process, improve the packing efficiency, when not needing to adjust, can be used as ordinary bubble bag, when needing, can be converted into compact packing mode quickly, and the suitability is wide.
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Description

Technical Field

[0001] This utility model relates to the field of logistics packaging technology, specifically to a bubble wrap bag for logistics. Background Technology

[0002] Bubble wrap is widely used in logistics transportation to protect goods due to its excellent cushioning and shockproof properties. Existing bubble wrap is usually a fixed-size bag structure. When packaging items smaller than the internal space of the bag, there will be excess space inside the bag, which will cause the items to shake and collide with the bag walls during transportation, thus increasing the risk of damage to the items. To solve this problem, operators usually need to use additional fillers (such as foam blocks, air cushions, or shredded paper) to fill the gaps. This not only increases the cost of packaging materials, but also makes the packaging operation more cumbersome and inefficient.

[0003] Therefore, there is an urgent need for bubble wrap that can adapt to the size of items and tightly wrap them without additional padding. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing a simple, easy-to-operate bubble wrap bag for logistics that allows for flexible adjustment of internal capacity to accommodate items of different sizes.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A bubble wrap bag for logistics includes a bag body, wherein a first extended side and a second extended side are respectively provided on the first opposite sides of the opening end of the bag body, and two winding side edges are respectively provided on the second opposite sides of the opening end of the bag body, and an adhesive piece is provided at the end of the second extended side away from the bag body. The first extended edge, the second extended edge, and the two wound sides are all configured to bend into the inner cavity of the bag body, and when the second extended edge bends into the outer surface of the bag body, the adhesive sheet can be bonded and fixed to the outer surface of the bag body.

[0006] Furthermore, the bag body, the first extended side, the second extended side, and the two wound sides are all composed of an outer layer, a middle layer, and an inner layer. The outer layer is a protective layer, the inner layer is an antistatic layer, and the middle layer is a buffer bubble layer. The outer and inner layers are made of polyethylene material, and the middle layer is made of low-density polyethylene material.

[0007] Furthermore, a baffle is provided at the connection between the first and second extended sides and the corresponding winding side to restrict the winding side from turning outward, and the cross-section of the winding side is dovetail-shaped.

[0008] Furthermore, the surface of the adhesive sheet is covered with a peelable anti-adhesive layer, and the anti-adhesive layer is provided with a tear strip.

[0009] Compared with the prior art, the beneficial effects of this utility model are: By bending the first extended side, the second extended side, and the rolled side inward, the effective volume of the packaging bag can be significantly reduced, allowing the bag to tightly wrap items of different sizes, effectively preventing items from shaking during transportation and improving the reliability of cushioning protection. No need to find and use additional filler materials; packaging can be completed simply by folding its own structure and securing it with adhesive tabs, greatly simplifying the packaging process and improving packaging efficiency. When no adjustment is needed, it can be used as a regular bubble bag; when needed, it can be quickly converted into a compact packaging mode, making it widely applicable. Attached Figure Description

[0010] Figure 1 This is a schematic diagram of the overall structure of the present invention under normal conditions; Figure 2 This is a schematic diagram of the overall structure of the present invention in its compact state; Figure 3 This is a schematic diagram of the cross-sectional structure of the bag body of this utility model; Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0011] In the diagram: 1. Bag body; 11. Outer layer; 12. Middle layer; 13. Inner layer; 14. First extended edge; 15. Second extended edge; 16. Wrapped side; 2. Adhesive sheet; 21. Anti-adhesive layer; 22. Tear strip. Detailed Implementation

[0012] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0013] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, and several embodiments of the utility model will be provided. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the utility model more thorough and complete.

[0014] For examples, please refer to Figure 1-4 This utility model provides a technical solution: A bubble packaging bag for logistics includes a bag body 1. The first two opposite sides of the opening end of the bag body 1 are respectively provided with a first extended side 14 and a second extended side 15. The second opposite sides of the opening end of the bag body 1 are respectively provided with two rolled sides 16. By folding these four extended sides together, the size of the bag opening and the internal capacity can be effectively reduced. The bag body 1, the first extended side 14, the second extended side 15 and the two rolled sides 16 are all composed of an outer layer 11, a middle layer 12 and an inner layer 13. The outer layer 11 is a protective layer, whose main function is to provide wear-resistant and puncture-resistant protection. The inner layer 13 is an antistatic layer, used to prevent static electricity accumulation from damaging the internal precision items. The middle layer 12 is a buffer bubble layer, which uses the elasticity of the sealed air to absorb impact energy and achieve shock absorption. The outer layer 11 and the inner layer 13 are made of polyethylene material, which has good mechanical strength and heat-sealing performance. The middle layer 12 is made of low-density polyethylene material, which is flexible and easy to process into a bubble structure. The second extended edge 15 is provided with an adhesive piece 2 at the end away from the bag body 1 as the final fixing element. The surface of the adhesive piece 2 is covered with a peelable anti-adhesive layer 21 to protect the adhesiveness of the adhesive piece 2 before use. The anti-adhesive layer 21 is provided with a tear strip 22, which makes it easy for users to quickly tear off the anti-adhesive layer 21. The connection between the first extended side 14 and the second extended side 15 and the corresponding winding side 16 is provided with a baffle that restricts the winding side 16 from turning outward. The baffle is a protruding rib with a specific inclination angle formed at the connection by a hot pressing process. The side of the side closest to the inner cavity of the bag is a guiding slope, which facilitates the inward bending of the winding side 16; the side away from the inner cavity of the bag is a vertical surface or a reverse slope, which forms a mechanical interference with the end of the winding side 16, thereby preventing it from turning outward. This baffle structure ensures that the winding side 16 can only bend in one direction toward the inner cavity of the bag 1 when under force, preventing it from accidentally turning outward. The cross-section of the winding side 16 is dovetail-shaped. This design allows it to fit more tightly to the inner wall of the bag 1 after bending, increasing structural stability and reducing springback. Its wider end is located on the side closest to the inner cavity of the bag. This design, on the one hand, allows it to fit more tightly to the inner wall of the bag 1 after bending, increasing structural stability and reducing springback; on the other hand, its narrower end cooperates with the baffle to further ensure the smoothness of inward bending and the mechanical resistance to outward turning.

[0015] The first extension edge 14, the second extension edge 15, and the two winding sides 16 are all configured to bend into the inner cavity of the bag body 1. When the second extension edge 15 bends into the outer surface of the bag body 1, the adhesive piece 2 can be bonded and fixed to the outer surface of the bag body 1, thereby locking all the folded parts and forming a compact and stable packaging whole.

[0016] The usage process of this utility model is as follows: I. Packaging process under normal conditions When the size of the object to be packaged matches the internal space of bag 1, or when regular protection does not require a tight seal, please follow these steps: Place the items that need protection directly into the storage cavity through the opening of bag 1.

[0017] Simply close the first extended edge 14, the second extended edge 15, and the two rolled-up sides 16 at the opening end of the bag body 1.

[0018] Peel off the anti-adhesive layer 21 from the surface of the adhesive sheet 2.

[0019] Attach adhesive piece 2 to the closed bag opening to seal it.

[0020] In this state, the packaging bag is used as a standard cushioning and protective bag, which is simple and quick to operate.

[0021] II. Packaging process under tight fit When the object to be packaged is much smaller than the internal space of bag 1, and it is required that the item does not move during transportation, please enable the tight fit mode. The operation steps are as follows: Place the items: Place the items that need protection into the bottom of the storage cavity from the opening end of bag 1.

[0022] Folding the rolled sides 16: Press the two rolled sides 16 with your thumbs respectively, and use the guide strips at their joints to rotate and bend them toward the inner cavity of the bag body 1. Since the cross-section of the rolled sides 16 is dovetail-shaped, they can bend smoothly and finally fit against the inner cavity side wall of the bag body 1.

[0023] Fold the first extended side 14: bend the first extended side 14 toward the inner cavity of the bag body 1, covering or between the folded rolled side 16.

[0024] Fix the second extension side 15: bend the second extension side 15 toward the outer surface of the bag body 1 so that it covers the top of the bag opening.

[0025] Adhesive sealing: Grasp the tear strip 22 and completely peel off the release liner 21 covering the adhesive sheet 2. Then press the adhesive sheet 2 firmly onto the outer surface of the bag body 1.

[0026] After completing the above steps, the opening size and internal capacity of bag 1 are effectively reduced, forming a compact package. The items are firmly fixed in the center of bag 1 by each folded edge, thereby minimizing shaking and collision during transportation and achieving the best protection effect.

[0027] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A bubble wrap bag for logistics, comprising a bag body (1), characterized in that: The bag body (1) has a first extended side (14) and a second extended side (15) on the first opposite sides of the opening end, and two winding side edges (16) on the second opposite sides of the opening end, and an adhesive piece (2) is provided at the end of the second extended side (15) away from the bag body (1). The first extension edge (14), the second extension edge (15) and the two winding sides (16) are all configured to bend into the inner cavity of the bag body (1), and when the second extension edge (15) bends into the outer surface of the bag body (1), the adhesive piece (2) can be bonded and fixed to the outer surface of the bag body (1).

2. The bubble wrap bag for logistics according to claim 1, characterized in that: The bag body (1), the first extended side (14), the second extended side (15) and the two rolled sides (16) are all composed of an outer layer (11), a middle layer (12) and an inner layer (13).

3. The bubble wrap bag for logistics according to claim 2, characterized in that: The outer layer (11) is a protective layer, the inner layer (13) is an antistatic layer, and the middle layer (12) is a buffer bubble layer.

4. The bubble wrap bag for logistics according to claim 3, characterized in that: The outer layer (11) and inner layer (13) are made of polyethylene material, and the middle layer (12) is made of low-density polyethylene material.

5. A bubble wrap bag for logistics according to claim 1, characterized in that: The connection between the first extended side (14) and the second extended side (15) and the corresponding winding side (16) is provided with a baffle to restrict the winding side (16) from turning outward.

6. A bubble wrap bag for logistics according to claim 5, characterized in that: The cross-section of the wound side (16) is swallowtail shaped.

7. A bubble wrap bag for logistics according to claim 1, characterized in that: The surface of the adhesive sheet (2) is covered with a peelable anti-adhesive layer (21), and the anti-adhesive layer (21) is provided with a tear strip (22).