Anti-permeation easy-to-package corrugated carton
The corrugated paper box with a layered structure and reinforced support structures addresses the cost and structural integrity issues of existing moisture-resistant boxes, improving moisture resistance and sealing efficiency.
Patent Information
- Application Number
- CN202422146624.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-02
- Publication Date
- 2025-07-15
- Estimated Expiration
- 2034-09-02
AI Technical Summary
Existing corrugated cartons have good moisture resistance, but their support effect is poor and their cost is high. In particular, the bottom support plate leads to an increase in cost and the support effect is not ideal.
The design of anti-seepage layer, waterproof layer and anti-seepage part is adopted, combined with the support strip structure, to improve the anti-seepage and packaging stability of the carton and reduce costs.
The anti-permeability and packaging speed of the carton are improved, while reducing production costs and improving support effect.
Smart Images

Figure CN223101435U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of corrugated cartons. More specifically, the utility model relates to an anti-permeation and easy-to-seal corrugated carton. Background Art
[0002] Corrugated cardboard is made into corrugated cartons through die-cutting, indentation, box nailing or gluing. Corrugated cartons are the most widely used packaging products, and their usage has always been the first among various packaging products, including calcium plastic corrugated cartons. For more than half a century, corrugated cartons have gradually replaced transportation packaging containers such as wooden boxes with their superior performance and good processing performance, becoming the main force of transportation packaging. In addition to protecting goods, facilitating warehousing and transportation, they also play the role of beautifying and promoting goods. Corrugated cartons are green environmental protection products, which are beneficial to environmental protection and loading and unloading transportation.
[0003] An existing corrugated carton with good moisture-proof performance, publication number CN 216970509 U, includes two cardboard sheets. The outer surface of each cardboard sheet is clamped with a wrapping cardboard. Moisture-proof films are fixedly connected to the mutually distant side surfaces of the two cardboard sheets and the mutually distant side surfaces of the two wrapping cardboard sheets. Reverse osmosis membranes are fixedly connected to the mutually close side surfaces of the two cardboard sheets and the mutually close side surfaces of the two wrapping cardboard sheets. A box bottom is jointly placed below the two cardboard sheets. A waterproof film is fixedly connected to the outer surface of the box bottom. Two groups of partition plates are fixedly connected to the inner bottom wall of the box bottom. Two groups of exhaust holes are opened on the bottom surface of the box bottom. For this corrugated carton with good moisture-proof performance, by providing a moisture-proof film, and the moisture-proof film is made of PE film, it can make the cardboard sheets and the wrapping cardboard have moisture-proof properties, achieving the purpose of reducing the moisture permeability of the cardboard sheets and the wrapping cardboard, and avoiding the problem that the supportiveness and hardness of the cardboard sheets and the wrapping cardboard decrease due to moisture. However, the support plate provided at the bottom of this kind of corrugated carton leads to an increase in cost and poor support effect, which is not conducive to actual use. Summary of the Invention
[0004] In order to overcome the above-mentioned defects of the prior art, the purpose of the utility model is to provide an anti-permeation and easy-to-seal corrugated carton, which has the characteristics of anti-permeation and easy-to-seal, saves costs and is conducive to actual use.
[0005] To achieve the above purpose, the utility model provides the following technical solution: an anti-permeation and easy-to-seal corrugated carton, including a bottom cardboard, side cardboards, a top cardboard, and a carrying handle. The bottom cardboard is rectangular as a whole. The side plates of the bottom cardboard are connected upward to the side cardboards. The top cardboard is provided above the side cardboards. A pair of carrying handles are provided on the side cardboards. The lower part of the side cardboards is an anti-seepage part.
[0006] Preferably, the bottom cardboard includes a face paper layer, an anti-seepage layer, a corrugated paper core layer, and a waterproof layer. The face paper layer is arranged on the outermost side, the bottom of the face paper layer is bonded to the anti-seepage layer, the bottom of the anti-seepage layer is bonded to the corrugated paper core layer, and the waterproof layer is coated on the bottom of the corrugated paper core layer.
[0007] Preferably, the face paper layer is made of coated paper or kraft paper.
[0008] Preferably, the anti-seepage layer is made of polyethylene film or polypropylene film.
[0009] Preferably, the waterproof layer is made of waterproof latex paint or wax-based coating.
[0010] Preferably, the side cardboard is divided into an anti-seepage part and a base plate part. The anti-seepage part is arranged below the base plate part, and a wax-based coating is sprayed on the outside of the anti-seepage part.
[0011] Preferably, the top cardboard includes a top plate one, a top plate two, and a support bar. The top plate one and the top plate two are respectively connected to both sides of the side cardboard. The lower side of the top plate one protrudes, and the upper side of the top plate two protrudes. Support bars are provided between the top plate one and the inner side of the side cardboard, and support bars are provided between the top plate two and the inner side of the side cardboard.
[0012] Compared with the prior art, the beneficial effects of the present utility model are as follows:
[0013] 1. The anti-seepage and easy-to-seal corrugated cardboard box of the present utility model is provided with a waterproof layer, an anti-seepage layer and an anti-seepage part, which improve the anti-seepage property of the lower side of the cardboard box, can effectively isolate the water vapor coming from the ground, and reduce the manufacturing cost of the cardboard box while improving the anti-seepage property;
[0014] 2. The anti-seepage and easy-to-seal corrugated cardboard box of the present utility model is provided with auxiliary support bars at the top, which can maintain the stable support of the top plate when the top plate is closed for sealing, and improve the sealing speed of the cardboard box. Description of the Drawings
[0015] Figure 1 is a structural diagram of an anti-seepage and easy-to-seal corrugated cardboard box of the present utility model;
[0016] Figure 2 is a schematic structural diagram of an anti-seepage and easy-to-seal corrugated cardboard box of the present utility model;
[0017] Figure 3 is a schematic structural diagram of the bottom plate of an anti-seepage and easy-to-seal corrugated cardboard box of the present utility model;
[0018] In the figure: 1-bottom cardboard, 11-face paper layer, 12-anti-seepage layer, 13-corrugated paper core layer, 14-waterproof layer, 2-side cardboard, 21-anti-seepage part, 22-base plate part, 3-top cardboard, 31-top plate one, 32-top plate two, 33-support bar, 4-carrying handle. Detailed implementation mode
[0019] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without making creative efforts shall fall within the protection scope of the present utility model.
[0020] Refer to Figures 1 - 3 , in the embodiments of the present utility model, a leak-proof and easy-to-seal corrugated cardboard box includes a bottom cardboard 1, side cardboards 2, a top cardboard 3, and a handle opening 4. The bottom cardboard 1 is overall rectangular. The bottom cardboard 1 includes a face paper layer 11, an anti-seepage layer 12, a corrugated paper core layer 13, and a waterproof layer 14. The face paper layer 11 is arranged on the outermost side. The face paper layer 11 is made of coated paper or kraft paper. The bottom of the face paper layer 11 is bonded to the anti-seepage layer 12. The anti-seepage layer 12 is made of polyethylene film or polypropylene film. The bottom of the anti-seepage layer 12 is bonded to the corrugated paper core layer 13. The bottom of the corrugated paper core layer 13 is coated with the waterproof layer 14. The waterproof layer 14 is made of waterproof latex paint or wax-based coating. The side plates of the bottom cardboard 1 are connected upward to the side cardboards 2. The side cardboards 2 are divided into an anti-seepage part 21 and a base plate part 22. The anti-seepage part 21 is arranged below the base plate part 22. The outside of the anti-seepage part 21 is sprayed with a wax-based coating. The top cardboard 3 is arranged above the side cardboards 2. The top cardboard 3 includes a top plate one 31, a top plate two 32, and a support bar 33. The top plate one 31 and the top plate two 32 are respectively connected to both sides of the side cardboard 2. The lower side of the top plate one 31 protrudes, and the upper side of the top plate two 32 protrudes. The support bar 33 is arranged between the top plate one 31 and the inner side of the side cardboard 2, and the support bar 33 is also arranged between the top plate two 32 and the inner side of the side cardboard 2. A pair of handle openings 4 are arranged on the side cardboards 2. The lower side part of the side cardboards 2 is the anti-seepage part 21.
[0021] For the leak-proof and easy-to-seal corrugated cardboard box of the present utility model, during use, since the anti-seepage layer 12 and the waterproof layer 14 are provided on the bottom cardboard 1 to enhance the anti-seepage effect of the bottom cardboard 1, a waterproof coating is sprayed on the anti-seepage part 21 on the lower side of the side cardboard 2 to increase the overall anti-seepage ability of the lower side of the cardboard box. The support bar 33 is arranged at the connection between the top plate one 31 and the top plate two 32 and the side cardboard 2 on the top cardboard 3 above the cardboard box. When packing and sealing, the support bar 33 can be fixed at a ninety-degree angle to support the top plate one 31 and the top plate two 32 from continuing to bend downward, thereby improving the sealing speed.
[0022] The above embodiments are illustrative of the present utility model, not restrictive of the present utility model. Any solution obtained by simply transforming the present utility model shall fall within the protection scope of the present utility model.
Claims
1. An anti-permeation and easily encapsulatable corrugated cardboard box, characterized in that: It includes a bottom cardboard (1), side cardboards (2), a top cardboard (3), and a carrying opening (4). The bottom cardboard (1) is rectangular as a whole. The side plates of the bottom cardboard (1) are connected upward to the side cardboards (2). The top cardboard (3) is provided on the upper side of the side cardboards (2). A pair of carrying openings (4) are provided on the side cardboards (2). The lower side part of the side cardboards (2) is an anti-seepage part (21). The bottom cardboard (1) includes a face paper layer (11), an anti-seepage layer (12), a corrugated paper core layer (13), and a waterproof layer (14). The face paper layer (11) is arranged on the outermost side. The bottom of the face paper layer (11) is bonded to the anti-seepage layer (12). The bottom of the anti-seepage layer (12) is bonded to the corrugated paper core layer (13). The waterproof layer (14) is coated on the bottom of the corrugated paper core layer (13).
2. The anti-permeation and easy-to-seal corrugated cardboard box according to claim 1, characterized in that: The face paper layer (11) is made of coated paper or kraft paper.
3. The anti-permeation and easy-to-seal corrugated cardboard box according to claim 1, characterized in that: The anti-seepage layer (12) is made of polyethylene film or polypropylene film.
4. The anti-permeation and easy-to-seal corrugated cardboard box according to claim 1, wherein: The waterproof layer (14) is made of waterproof latex paint or wax-based coating.
5. The anti-permeation and easy-to-seal corrugated cardboard box according to claim 1, wherein: The side cardboard (2) is divided into an anti-seepage part (21) and a base plate part (22). The anti-seepage part (21) is arranged below the base plate part (22). A wax-based coating is sprayed on the outside of the anti-seepage part (21).
6. The anti-permeation and easy-to-seal corrugated cardboard box according to claim 1, characterized in that: The top cardboard (3) includes a top plate one (31), a top plate two (32), and a support strip (33). The top plate one (31) and the top plate two (32) are respectively connected to both sides of the side cardboard (2). The lower side of the top plate one (31) protrudes, and the upper side of the top plate two (32) protrudes. The support strip (33) is provided between the top plate one (31) and the inner side of the side cardboard (2), and the support strip (33) is also provided between the top plate two (32) and the inner side of the side cardboard (2).