Corrugated carton with anti-tearing function
By introducing reinforced film, tear-resistant strips and packaging edges into corrugated cartons, the problem of insufficient liquid penetration and tear-resistant performance caused by the lack of packaging edges of corrugated cartons is solved, and higher overall strength, waterproof performance and Compression resistance ensures the stability and safety of cartons during transportation and storage.
Patent Information
- Application Number
- CN202421219889.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-31
- Publication Date
- 2025-01-10
- Estimated Expiration
- 2034-05-31
AI Technical Summary
The cardboard on the bottom and top of the existing corrugated cartons lacks packaging edge treatment, which causes liquids to penetrate and damage the internal structure of the carton, reduces overall strength and tear resistance, especially during transportation and handling.
A corrugated carton including a carton body, reinforcement film, tear-resistant strips and caps, and back-covered edges were designed. By compositeing the reinforcement film inside the carton body, setting tear-resistant strips and edges on the outside, these were made of polymer materials. Components to enhance the overall strength and waterproof performance of the carton.
It significantly improves the overall aesthetics, tear resistance and waterproof performance of the carton, enhances compressive resistance and structural stability, ensures that the carton is not prone to deform or cracking during transportation and storage, and improves the safety of internal items.
Smart Images

Figure CN222330252U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of corrugated paper boxes, and in particular relates to a corrugated paper box with tear resistance function. Background Art
[0002] After precise die-cutting, meticulous creasing, and professional nailing or gluing processes, corrugated cardboard is finally formed into a functional corrugated box. This packaging product has long dominated various packaging products due to its wide range of applications and excellent performance, including calcium plastic corrugated boxes. Over the past half century, corrugated boxes have gradually replaced traditional wooden boxes and other transportation packaging containers with their excellent performance and convenient processing performance, becoming an indispensable partner in the logistics industry.
[0003] However, the bottom and top boards of one-piece corrugated boxes on the market often lack sealing and edging treatment. This design deficiency makes it easy for liquids to penetrate directly into the corrugated board through these unsealed gaps when the box is exposed to external liquid erosion, thereby damaging the internal (corrugated core) structure of the box and affecting its overall strength. What's more serious is that the overall strength and tear resistance of the edge parts that have not been sealed and edged are significantly reduced, and they are very likely to suffer large-scale tearing during transportation and handling, greatly reducing the service life and safety of the box.
[0004] Therefore, it is very necessary to invent a corrugated box with tear-resistant function. Utility Model Content
[0005] In order to solve the above technical problems, the utility model provides a corrugated paper box with anti-tear function, including a paper box body, a reinforcing film, an anti-tear strip, a top edge and a bottom edge, the reinforcing film is compounded inside the paper box body, and the anti-tear strip, the top edge and the bottom edge are respectively arranged on the outside of the paper box body, and the structures of the top edge and the bottom edge are the same.
[0006] Preferably, the carton body is an integrated carton, consisting of a box body, a top cover and a bottom cover, wherein the top cover and the bottom cover are made of four paperboards; the reinforcing film is compounded between the two corrugated cores of the carton body, and is located between the two corrugated cores, the face paper and the bottom paper.
[0007] Preferably, the anti-tear strips are compounded on the surface paper of the carton body, and are "N"-shaped wavy strips, four of which are provided and are located between the top edge and the bottom edge.
[0008] Preferably, the top edge and the bottom edge are respectively compounded on the top edge and the bottom edge of the carton body, and the top edge and the bottom edge are composed of an edge portion and an extension portion.
[0009] Preferably, the reinforcing film, the tear-resistant strip, the top edge and the bottom edge are all made of polymer materials.
[0010] Compared with the prior art, the utility model has the following beneficial effects:
[0011] The utility model is designed with top and bottom sealing edges for the top and bottom sealing edges of the carton to perform sealing and edge treatment, which not only significantly improves the overall aesthetics of the carton, but also greatly improves the waterproof performance of the carton while reinforcing the overall strength and tear resistance, effectively reducing the possibility of direct liquid penetration. A layer of reinforcing film is cleverly compounded between the corrugated cores. This innovative design significantly enhances the carton's compressive resistance and structural stability. During long-distance transportation and long-term storage, this design can ensure that the carton is not easily deformed or ruptured due to external pressure, thereby ensuring the safety and integrity of the items inside.
[0012] In addition, the utility model also laminates an "N"-shaped wave-shaped tear-resistant strip on the surface paper of the carton body. This detail processing significantly improves the tear resistance of the carton. Even if it encounters an unexpected impact during transportation or handling, the carton can remain intact, effectively preventing damage caused by tearing, and further improving the practicality and reliability of the carton. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 It is a schematic diagram of the explosion structure of the utility model.
[0014] Figure 2 It is a schematic diagram of the overall structure of the utility model.
[0015] In the figure:
[0016] Carton body 1, reinforcing film 2, anti-tear strip 3, top edge 4, bottom edge 5. DETAILED DESCRIPTION
[0017] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be described clearly and completely below. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0018] In the description of the embodiments, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, which are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In the description of the utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be a connection between the two elements. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood according to specific circumstances.
[0019] As attached Figure 1 To Attachment Figure 2 As shown:
[0020] The utility model provides a corrugated paper box with anti-tear function, comprising a paper box body 1, a reinforcing film 2, an anti-tear strip 3, a top edge 4 and a bottom edge 5, the reinforcing film 2 is compounded inside the paper box body 1, and the anti-tear strip 3, the top edge 4 and the bottom edge 5 are respectively arranged on the outside of the paper box body 1, and the structures of the top edge 4 and the bottom edge 5 are the same. Embodiment 1:
[0021] Specifically, the carton body 1 is an integrated carton, consisting of a box body, a top cover and a bottom cover, wherein the top cover and the bottom cover are made of four paperboards; the reinforcing film 2 is compounded between the two corrugated cores of the carton body 1, and is located between the two corrugated cores, the face paper and the bottom paper. This design greatly enhances the compression resistance and structural stability of the carton. During transportation and storage, even in the face of external pressure, the carton can maintain its original shape and structure, effectively preventing deformation or rupture.
[0022] Specifically, the tear-resistant strip 3 is compounded on the surface paper of the carton body 1. The tear-resistant strip 3 is an "N"-shaped wave strip, of which there are four in total and located between the top edge 4 and the bottom edge 5. This not only increases the strength of the tear-resistant strip, but also enables it to better adapt to various stresses that the carton may suffer during transportation and storage. The wave shape can disperse external forces and reduce the generation of concentrated stress, thereby effectively reducing the risk of carton tearing.
[0023] Specifically, the top edge 4 and the bottom edge 5 are respectively compounded on the top and bottom edges of the carton body, ensuring a close connection and stability with the carton body 1. The extension portion extends outward to form a certain protective layer, further enhancing the protective ability of the carton. The top edge 4 and the bottom edge 5 are composed of the edge portion and the extension portion, which not only improves the overall strength and stability of the carton, but also enhances its tear resistance. During transportation and storage, even if there is external impact or pressure, the top edge and the bottom edge can effectively disperse and alleviate these forces to protect the safety of the items inside the carton.
[0024] Specifically, the reinforcing film 2, the tear-resistant strip 3, the top edge 4 and the bottom edge 5 are all made of polymer materials. Embodiment 2:
[0025] Carton body 1 design:
[0026] Between the two corrugated cores of the carton body 1, there is a reinforcing film 2, located between the two corrugated cores, the face paper and the bottom paper. This reinforcing film greatly enhances the compression resistance and structural stability of the carton, allowing the carton to maintain its original shape and structure during transportation and storage, effectively preventing deformation or rupture.
[0027] Function of anti-tear strip 3:
[0028] The tear-resistant strips 3 are "N"-shaped wave strips, four of which are provided and are located between the top edge 4 and the bottom edge 5. This wave-shaped design not only increases the strength of the tear-resistant strips 3, but also enables it to better adapt to various stresses that the carton may suffer during transportation and storage.
[0029] When the carton is subjected to external impact or pressure, the wave shape can disperse the external force and reduce the generation of concentrated stress, thereby effectively reducing the risk of carton tearing.
[0030] Protection of top edge 4 and bottom edge 5:
[0031] The top sealing edge 4 and the bottom sealing edge 5 are respectively compounded on the top sealing edge and the bottom sealing edge of the carton body 1, and are composed of a sealing portion and an extension portion. The sealing portion ensures a close connection and stability with the carton body 1, while the extension portion extends outward to form a certain protective layer.
[0032] This design not only improves the overall strength and stability of the carton, but also enhances its tear resistance. During transportation and storage, even if it encounters external impact or pressure, the top and bottom edges can effectively disperse and alleviate these forces to protect the safety of the items inside the carton.
[0033] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.
Claims
1. A tear-resistant corrugated paper box, characterized in that: The invention comprises a carton body (1), a reinforcing film (2), an anti-tear strip (3), a top edge (4) and a bottom edge (5), wherein the reinforcing film (2) is laminated inside the carton body (1), and the anti-tear strip (3), the top edge (4) and the bottom edge (5) are respectively arranged outside the carton body (1), and the top edge (4) and the bottom edge (5) have the same structure.
2. A tear-resistant corrugated paper box according to claim 1, characterized in that: The carton body (1) is an integrated carton, consisting of a box body, a top cover and a bottom cover, wherein the top cover and the bottom cover are made of four paperboards; the reinforcing film (2) is laminated between two corrugated cores of the carton body (1), and is located between the two corrugated cores, the face paper and the bottom paper.
3. The tear-resistant corrugated paper box according to claim 1, characterized in that: The tear-resistant strip (3) is laminated on the surface paper of the carton body (1), and the tear-resistant strip (3) is an "N"-shaped wave strip, of which four are provided in total and are located between the top cover edge (4) and the bottom cover edge (5).
4. A tear-resistant corrugated paper box according to claim 1, characterized in that: The top sealing edge (4) and the bottom sealing edge (5) are respectively compounded on the top sealing edge and the bottom sealing edge of the carton body (1); the top sealing edge (4) and the bottom sealing edge (5) are composed of an edge portion and an extension portion.
5. The tear-resistant corrugated paper box according to claim 1, characterized in that: The reinforcing film (2), the tear-resistant strip (3), the top edge (4) and the bottom edge (5) are all made of polymer materials.