A type of express delivery packaging bag with a wear-resistant structure
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DONGYANG WANSEN PLASTIC PRODUCTS CO LTD
- Filing Date
- 2025-09-05
- Publication Date
- 2026-06-30
Smart Images

Figure CN224428464U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of packaging bag technology, specifically to a courier packaging bag with a wear-resistant structure. Background Technology
[0002] Express delivery bags refer to the bags used in the express delivery industry to pack documents, invoices, materials, and goods. They are also known as courier bags, mail bags, or express packaging bags. Currently, the most commonly used plastic express delivery bags are made of polyethylene material, which has the characteristics of low cost, ease of use, and good waterproof performance.
[0003] In existing express delivery packaging bags, the waybill is usually directly attached to the outside of the bag. However, during transportation, sorting, and delivery, the waybill is easily blurred due to friction with other items or oil stains, making key information such as the recipient's information and logistics code illegible. This causes great trouble for couriers to identify delivery information and for recipients to verify the items. At the same time, the waybill is usually firmly attached to the bag, making it difficult for the recipient to remove. If the packaging bag is discarded directly, it may lead to the leakage of personal information. If it is deliberately destroyed, special tools are needed to scrape it off or black it out with a pen, which is both time-consuming and increases the user's workload. Utility Model Content
[0004] Therefore, the purpose of this utility model is to provide a courier packaging bag with a wear-resistant structure to solve the technical problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a wear-resistant express packaging bag, comprising a bag body, a flip-up part at the top of the bag body, an adhesive strip on the outer surface of the flip-up part, a self-sealing strip glued to the upper part of the inner wall of the bag body, a transparent protective film glued to the upper part of the outer surface of the bag body, an adhesive sheet on the back of the transparent protective film, an easy-tear strip on the outer surface of the bag body, and an easy-tear line between the easy-tear strip and the bag body.
[0006] Furthermore, the self-sealing strip includes a locking strip and a locking groove, and the locking strip and the locking groove are adapted to each other.
[0007] By adopting the above technical solution, the card strip is embedded in the card slot to form a tight fit, thereby achieving the initial sealing of the bag. Its adaptable structure ensures the stability of the seal.
[0008] Furthermore, the adhesive strip is in the shape of an inverted "U".
[0009] By adopting the above technical solution, its shape is adapted to the edge of the bag opening, increasing the contact area with the bag body and enhancing the tightness and stability of the secondary sealing.
[0010] Furthermore, both the adhesive strip and the adhesive sheet have a release film on their surfaces.
[0011] By adopting the above technical solution, the release film can protect its adhesive side when not in use, avoiding the adhesion effect from dust or accidental adhesion. When in use, simply tear off the release film to perform its adhesive function normally, ensuring the convenience and reliability of sealing and covering operations.
[0012] Furthermore, the inner side of the bag is bonded with a bubble layer by hot-pressing.
[0013] By adopting the above technical solution, hot-pressing composite can form a stable and tight bond between the two, while the bubble layer can provide cushioning and shockproof protection for the items inside the bag by means of its own structure, reducing transportation damage.
[0014] Furthermore, the easy-tear strip is provided in several groups, and the several groups of easy-tear strips are distributed at equal intervals from top to bottom.
[0015] By adopting the above technical solution, this layout can adapt to the information of different areas on the waybill, making it convenient for users to accurately peel off the tear strip at the corresponding position as needed.
[0016] Furthermore, a first peeling tab is provided on one side of the easy-tear strip, and a second peeling tab is provided below the outer surface of the transparent protective film.
[0017] By adopting the above technical solution, the first peeler makes it easy for users to quickly grab and apply force to peel off the easy-tear strip, while the second peeler makes it easy for users to lift the protective film.
[0018] Furthermore, the transparent protective film is made of PET material.
[0019] By adopting the above technical solution, the material has excellent transparency, which can clearly display the information on the waybill. It also has the characteristics of being abrasion-resistant and pollution-resistant, which can better protect the waybill from damage. In addition, it has good toughness and is suitable for operations such as flipping and lifting.
[0020] In summary, the present invention has the following main advantages:
[0021] 1. This utility model features a transparent protective film, adhesive strips, easy-tear strips, and easy-tear lines. When a sender affixes a shipping label, they can attach it to multiple sets of easy-tear strips, then flip the transparent protective film and adhere it to the bag body via the adhesive strips. This ensures the transparent protective film tightly covers the shipping label, effectively preventing damage to the information from friction and stains. Even if contaminants adhere to the transparent protective film, the courier or recipient can easily wipe away the stains, completely solving the problem of unclear information for the courier or recipient. When the recipient needs to remove critical personal information, they only need to peel off the transparent protective film and then remove the corresponding easy-tear strip. The easy-tear strip can be quickly torn open with the guidance of the easy-tear lines. Since the shipping label and the easy-tear strip are connected by adhesive, the personal information on it is simultaneously peeled off when the easy-tear strip is removed, ensuring that no personal information is leaked on the discarded shipping bag. No special tools are required, which avoids the risk of leakage caused by information residue and simplifies the destruction process, greatly improving the convenience and security of information protection.
[0022] 2. This utility model utilizes a self-sealing strip and an adhesive strip. When the mailer seals the packaging bag, the self-sealing strip first achieves an initial seal on the bag body, and then the adhesive strip is used to bond the flip-up part to the bag body for secondary reinforcement. Compared with the traditional sealing method that relies on only a single adhesive strip, this double sealing structure can prevent the packaging bag from opening and causing the items to be lost due to friction and changes in environmental temperature and humidity during transportation. Even if the adhesive strip is slightly delaminated, the self-sealing strip can still maintain the basic sealing effect, fundamentally preventing the internal items from falling out due to seal failure, and significantly improving the reliability and safety of the packaging bag. Attached Figure Description
[0023] Figure 1 This is a schematic diagram of the structure of this utility model;
[0024] Figure 2 This is a schematic diagram of the transparent protective film structure of this utility model;
[0025] Figure 3 This is a schematic diagram of the self-sealing strip structure of this utility model;
[0026] Figure 4 This is a schematic diagram of the bag structure of this utility model;
[0027] Figure 5 This is a top-section structural diagram of the bag body of this utility model;
[0028] Figure 6 This is a top-side sectional view of the bag body of this utility model.
[0029] In the diagram: 1. Bag body; 2. Turn-over section; 3. Adhesive strip; 4. Self-sealing strip; 401. Card strip; 402. Card slot; 5. Transparent protective film; 6. Easy-tear strip; 7. Easy-tear line; 8. First peel-off piece; 9. Second peel-off piece; 10. Adhesive sheet; 11. Bubble layer. Detailed Implementation
[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.
[0031] The embodiments of this utility model will be described below based on its overall structure.
[0032] Example 1: A type of express delivery packaging bag with a wear-resistant structure, such as... Figures 1-6 As shown, the bag includes a bag body 1, with a flip-up part 2 at the top. An adhesive strip 3 is provided on the outer surface of the flip-up part 2. A self-sealing strip 4 is adhered to the upper inner wall of the bag body 1. The self-sealing strip 4 includes a locking strip 401 and a locking groove 402, with the locking strip 401 and the locking groove 402 fitting together. The locking strip 401 is embedded into the locking groove 402 to form a tight fit, thus achieving initial sealing of the bag body 1. Its fitting structure ensures the stability of the seal. A transparent protective film 5 is adhered to the upper outer surface of the bag body 1, and an adhesive sheet 10 is provided on the back of the transparent protective film 5. The adhesive strip 3 and the adhesive sheet 10... All surfaces of the bag body 1 are provided with a release film. The release film protects the adhesive side when not in use, preventing dust or accidental adhesion from affecting the bonding effect. When in use, simply tear off the release film to perform the bonding function normally, ensuring the convenience and reliability of sealing and covering operations. The outer surface of the bag body 1 is provided with an easy-tear strip 6, and an easy-tear line 7 is provided between the easy-tear strip 6 and the bag body 1. A first peeling tab 8 is provided on one side of the easy-tear strip 6, and a second peeling tab 9 is provided below the outer surface of the transparent protective film 5. The first peeling tab 8 makes it easy for the user to quickly grab and apply force to peel off the easy-tear strip 6, while the second peeling tab 9 makes it easy for the user to lift the protective film.
[0033] See Figure 1 and Figure 4 In the above embodiment, the adhesive strip 3 is in the shape of an inverted "U", which is adapted to the edge of the bag opening, increases the contact area with the bag body 1, and enhances the tightness and stability of the secondary sealing.
[0034] See Figure 1 and Figure 4 In the above embodiments, the easy-tear strip 6 is provided in several groups, and the several groups of easy-tear strips 6 are distributed at equal intervals from top to bottom. This layout can adapt to the information of different areas on the express delivery slip, making it convenient for users to accurately peel off the easy-tear strip 6 at the corresponding position as needed.
[0035] See Figures 1-2 In the above embodiments, the transparent protective film 5 is made of PET material, which has excellent transparency, can clearly display the express delivery information, and has the characteristics of friction resistance and pollution resistance, which can better protect the express delivery from damage. It also has good toughness and is suitable for operations such as flipping and lifting.
[0036] Example 2: To protect the items and prevent damage, Example 2 is an improvement on Example 1. (See attached document.) Figures 5-6 The inner side of the bag body 1 is bonded with a bubble layer 11 by hot-pressing. Hot-pressing allows the two to form a stable and tight bond, while the bubble layer 11 can provide cushioning and shockproof protection for the items inside the bag by its own structure, reducing damage during transportation.
[0037] The implementation principle of this utility model is as follows: When the mailer uses it, they first put the item into the bag body 1, and achieve initial sealing through the self-sealing strip 4, that is, the matching card strip 401 in the self-sealing strip 4 is embedded in the card slot 402 to form a tight fit; then, they peel off the release film on the surface of the adhesive strip 3, because its inverted "U" shape fits the edge of the bag opening, and the flip part 2 is glued to the bag body 1 to complete the secondary sealing, and the double sealing enhances the stability and sealing; then, they attach the express delivery slip to several sets of easy-tear strips 6 on the surface of the bag body 1, and then peel off the transparent protective film. The release film of the back adhesive sheet 10 of the protective film 5 is used to adhere the transparent protective film 5 to the bag body 1, preventing the transparent protective film 5 from opening on its own and thus protecting the waybill. After receiving the package, if personal information needs to be removed, the recipient can lift the transparent protective film 5 through the second peeling piece 9, and then use the first peeling piece 8 to peel off the easy-tear strip 6 corresponding to the personal information. The easy-tear line 7 guides the recipient to tear it quickly. Since the waybill is adhered to the easy-tear strip 6, the personal information on the waybill can be torn off simultaneously when the easy-tear strip 6 is peeled off.
[0038] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.
Claims
1. A wear-resistant structure express packaging bag, comprising a bag body (1), characterized in that: The top of the bag body (1) is provided with a flip-up part (2), the outer surface of the flip-up part (2) is provided with an adhesive strip (3), the upper part of the inner wall of the bag body (1) is bonded with a self-sealing strip (4), the upper part of the outer surface of the bag body (1) is bonded with a transparent protective film (5), the back of the transparent protective film (5) is provided with an adhesive sheet (10), the outer surface of the bag body (1) is provided with an easy-tear strip (6), and an easy-tear line (7) is provided between the easy-tear strip (6) and the bag body (1).
2. The wear-resistant structure express packaging bag according to claim 1, characterized in that: The self-sealing strip (4) includes a card strip (401) and a card slot (402), and the card strip (401) and the card slot (402) are adapted to each other.
3. The express packaging bag with a wear-resistant structure according to claim 1, characterized in that: The adhesive strip (3) is in the shape of an inverted "U".
4. The express packaging bag with a wear-resistant structure according to claim 1, characterized in that: Both the adhesive strip (3) and the adhesive sheet (10) have release films on their surfaces.
5. The express packaging bag with a wear-resistant structure according to claim 1, characterized in that: The inner side of the bag (1) is bonded with a bubble layer (11) by hot pressing.
6. The express packaging bag with a wear-resistant structure according to claim 1, characterized in that: The easy-tear strip (6) is provided in several groups, and the several groups of easy-tear strips (6) are distributed at equal intervals from top to bottom.
7. The express packaging bag with a wear-resistant structure according to claim 1, characterized in that: The easy-tear strip (6) has a first peeling tab (8) on one side, and the transparent protective film (5) has a second peeling tab (9) below its outer surface.
8. The express packaging bag with a wear-resistant structure according to claim 1, characterized in that: The transparent protective film (5) is made of PET material.