Damp-proof corrugated carton
By adopting a combined structure of water-absorbing layer, hydrophobic layer and waterproof film in the corrugated carton, combined with the design of sealing groove and sealing strip, the problem of easy water absorption and moisture absorption of corrugated cartons is solved, achieving higher water resistance and longer service life.
Patent Information
- Application Number
- CN202421654447.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-13
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-13
AI Technical Summary
The existing corrugated cartons are easily absorbed by water and moisture, resulting in deformation, and cannot be re-dryed and reused, with a short service life and cannot effectively protect the goods in the carton.
A moisture-proof corrugated carton is designed, which adopts a combined structure of a water-absorbing layer, a hydrophobic layer and a water-proof film. The water-absorbing layer is made of water-absorbing cotton, the paper core is a corrugated structure, the hydrophobic layer is a polyolefin coating, and the water-proof film is a PVC film. Through the design of the sealing groove and sealing strip, a sealing effect is formed to prevent moisture from infiltration.
It effectively improves the waterproofness of the carton, prevents moisture from infiltration, extends the service life of the carton, and can effectively protect the goods in the carton.
Smart Images

Figure CN222973849U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of corrugated cartons, and more specifically, particularly relates to a moisture-proof corrugated carton. Background Art
[0002] Cartons are the most widely used packaging products. According to different materials, there are corrugated cartons, single-layer cardboard boxes, etc., with various specifications and models. Commonly used cartons have three layers, five layers, and seven layers are less used. Each layer is divided into inner paper, corrugated paper, core paper, and face paper. The inner and face papers are made of tea board paper and kraft paper, and the core paper is made of corrugated paper. The colors and feels of various papers are different, and the papers produced by different manufacturers (colors, feels) are also different. Existing cartons are prone to deformation after being affected by moisture due to the water-absorbing and moisture-absorbing characteristics of corrugated paper, and cannot be air-dried again for reuse, greatly reducing the service life, and at the same time, it cannot achieve the purpose of protecting the goods inside the carton. Content of the Utility Model
[0003] In order to solve the above technical problems, the utility model provides a moisture-proof corrugated carton to solve the problems mentioned in the background art.
[0004] The purpose and effect of the moisture-proof corrugated carton of the utility model are achieved by the following specific technical means:
[0005] A moisture-proof corrugated carton includes a box body. A pair of first covers and a pair of second covers are provided at the top of the box body. The pair of first covers and the pair of second covers cover the top of the box body. Sealing grooves are opened at the top of the first covers and the second covers close to each other. Sealing strips are installed at the bottom of the first covers and the second covers close to each other. The sealing strips are clamped in the sealing grooves. The box body, the first covers, and the second covers all include a water-absorbing layer. Paper cores are provided on both sides of the water-absorbing layer. A hydrophobic layer is provided on one side of one of the paper cores, and a waterproof film is provided on one side of the other paper core.
[0006] Further, the water-absorbing layer is made of absorbent cotton material, the paper core is of a corrugated structure, and the corrugated structure is perpendicular to the carton. The hydrophobic layer is a polyolefin coating, and the waterproof film is a PVC film.
[0007] Further, the width of the first cover is greater than half of the width of the box body, and the length of the second cover is greater than half of the length of the box body.
[0008] Further, the hydrophobic layer is provided on the outer sides of the box body, the first covers, and the second covers, and the waterproof film is provided on the inner sides of the box body, the first covers, and the second covers.
[0009] Further, four groups of rubber pads are installed at the bottom of the box body, and a lifting frame is installed at the inner bottom of the box body, and there is a gap between the lifting frame and the inner bottom of the box body.
[0010] Furthermore, reinforcing members are installed at the internal angles of the box body.
[0011] Compared with the prior art, the utility model has the following beneficial effects:
[0012] The top opening of the box body is covered by a pair of first covers and a pair of second covers to prevent rainwater from flowing into the box body. At the same time, the sealing grooves and sealing strips are used to cover the gaps between the first covers and between the second covers, so as to prevent rainwater from flowing into the box body through the gaps. Finally, the waterproof film, hydrophobic layer, and water-absorbing layer are used to prevent rainwater from seeping into the box body, ultimately improving the overall waterproofness of the box body. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] Figure 1 is the first three-dimensional view of the utility model.
[0014] Figure 2 is the Figure 1 enlarged schematic view of the structure at A in the utility model.
[0015] Figure 3 is the second three-dimensional view of the utility model.
[0016] Figure 4 is the sectional view of the utility model.
[0017] In the figure, the corresponding relationship between the component names and the drawing reference numbers is as follows:
[0018] 1001, box body; 100101, water-absorbing layer; 100102, paper core; 100103, hydrophobic layer; 100104, waterproof film; 1002, first cover; 1003, second cover; 1004, sealing strip; 1005, sealing groove; 1006, rubber pad. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] The following further describes in detail the embodiments of the utility model in conjunction with the drawings and embodiments. The following embodiments are used to illustrate the utility model, but cannot be used to limit the scope of the utility model.
[0020] Embodiment:
[0021] As shown in the Figures 1-4 drawings:
[0022] The utility model provides a moisture-proof corrugated cardboard box, which includes a box body 1001. A pair of first cover plates 1002 and a pair of second cover plates 1003 are arranged at the top of the box body 1001. The pair of first cover plates 1002 and the pair of second cover plates 1003 cover the top of the box body 1001. Sealing grooves 1005 are formed at the top of the first cover plates 1002 and the second cover plates 1003 when they approach each other. Sealing strips 1004 are installed at the bottom of the first cover plates 1002 and the second cover plates 1003 when they approach each other. The sealing strips 1004 are clamped in the sealing grooves 1005. The box body 1001, the first cover plates 1002, and the second cover plates 1003 all include a water-absorbing layer 100101. Paper cores 100102 are arranged on both sides of the water-absorbing layer 100101. A hydrophobic layer 100103 is arranged on one side of one of the paper cores 100102, and a waterproof film 100104 is arranged on one side of the other paper core 100102. The top opening of the box body 1001 is covered by the pair of first cover plates 1002 and the pair of second cover plates 1003 to prevent rainwater from flowing into the box body 1001. At the same time, the sealing grooves 1005 and the sealing strips 1004 are used to cover the gaps between the first cover plates 1002 and between the second cover plates 1003, so as to prevent rainwater from flowing into the box body 1001 through the gaps. Finally, the waterproof film 100104, the hydrophobic layer 100103, and the water-absorbing layer 100101 are used to prevent rainwater from penetrating into the box body 1001, ultimately improving the overall waterproof performance of the box body 1001.
[0023] Among them, the water-absorbing layer 100101 is made of absorbent cotton material, the paper core 100102 is of a corrugated structure, the corrugated structure is perpendicular to the cardboard box, the hydrophobic layer 100103 is a polyolefin coating, and the waterproof film 100104 is a PVC film.
[0024] Among them, the width of the first cover plate 1002 is greater than half of the width of the box body 1001, and the length of the second cover plate 1003 is greater than half of the length of the box body 1001, ensuring that the first cover plates 1002 and the second cover plates 1003 after being closed can cover the top opening of the box body 1001.
[0025] Among them, the hydrophobic layer 100103 is arranged on the outer sides of the box body 1001, the first cover plates 1002, and the second cover plates 1003, and the waterproof film 100104 is arranged on the inner sides of the box body 1001, the first cover plates 1002, and the second cover plates 1003. The hydrophobic layer 100103 on the outer side is used to reduce the amount of moisture attached to the surface of the box body 1001. The moisture that penetrates into the box body 1001 is absorbed by the water-absorbing layer 100101, and a small amount of moisture that is not absorbed is blocked by the waterproof film 100104, so as to ensure the dryness of the environment inside the box body 1001.
[0026] Among them, four groups of rubber pads 1006 are installed at the bottom of the box body 1001, and a lifting frame is installed at the inner bottom of the box body 1001, and there is a gap between the lifting frame and the inner bottom of the box body 1001. The height of the bottom of the box body 1001 is increased through the rubber pads 1006 to avoid its long-term contact with accumulated water. The lifting frame is used to ensure that the items placed on it do not contact the inner bottom of the box body 1001. If water accidentally seeps in through the bottom of the box body 1001, in this way, the dryness of the items can be ensured.
[0027] Among them, reinforcing members are installed at the internal corners of the box body 1001, and the strength of the box body 1001 is improved by arranging the reinforcing members at the corners.
[0028] The specific usage mode and function of this embodiment:
[0029] When using this product, first, check whether the connections of the product are fastened. After ensuring it is in good condition, place the product at the designated position. After placing the items on the lifting frame inside the box body 1001, cover a pair of first covers 1002 or a pair of second covers 1003, and then cover a pair of second covers 1003 or a pair of first covers 1002, while ensuring that the sealing strip 1004 is engaged in the sealing groove 1005. Then, stick the waterproof tape at the connection of a pair of first covers 1002 or a pair of second covers 1003. The top opening of the box body 1001 is covered by a pair of first covers 1002 and a pair of second covers 1003 to prevent rainwater from flowing into the box body 1001. At the same time, the sealing groove 1005 and the sealing strip 1004 are used to cover the gaps between the first covers 1002 and between the second covers 1003, so as to prevent rainwater from flowing into the box body 1001 through the gaps. Finally, the waterproof film 100104, the hydrophobic layer 100103, and the water-absorbing layer 100101 are used to prevent rainwater from seeping into the box body 1001, ultimately improving the overall waterproofness of the box body 1001.
[0030] The embodiments of the present invention are given for the purposes of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are chosen and described in order to better illustrate the principles of the present invention and its practical applications, and to enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.
Claims
1. A moisture-proof corrugated paper box, characterized in that: The invention comprises a box body (1001), wherein a pair of first cover plates (1002) and a pair of second cover plates (1003) are provided on the top of the box body (1001), wherein the pair of first cover plates (1002) and the pair of second cover plates (1003) cover the top of the box body (1001), wherein the first cover plate (1002) and the second cover plate (1003) are both provided with sealing grooves (1005) at the tops where they are close to each other, and wherein the first cover plate (1002) and the second cover plate (1003) are both provided with sealing strips (1004) at the bottoms where they are close to each other, and wherein the sealing strips (1004) are engaged in the sealing grooves (1005); The box body (1001), the first cover plate (1002), and the second cover plate (1003) all include a water-absorbing layer (100101), and paper cores (100102) are provided on both sides of the water-absorbing layer (100101), one side of one of the paper cores (100102) is provided with a hydrophobic layer (100103), and one side of the other paper core (100102) is provided with a waterproof film (100104).
2. The moisture-proof corrugated paper box according to claim 1, characterized in that: The water-absorbing layer (100101) is made of absorbent cotton, the paper core (100102) is a corrugated structure, the corrugated structure is arranged vertically to the carton, the hydrophobic layer (100103) is a polyolefin coating, and the waterproof film (100104) is a PVC film.
3. The moisture-proof corrugated paper box according to claim 1, characterized in that: The width of the first cover plate (1002) is greater than half of the width of the box body (1001), and the length of the second cover plate (1003) is greater than half of the length of the box body (1001).
4. The moisture-proof corrugated paper box according to claim 1, characterized in that: The hydrophobic layer (100103) is arranged on the outside of the box body (1001), the first cover plate (1002), and the second cover plate (1003), and the waterproof membrane (100104) is arranged on the inside of the box body (1001), the first cover plate (1002), and the second cover plate (1003).
5. The moisture-proof corrugated paper box according to claim 1, characterized in that: Four groups of rubber pads (1006) are installed at the bottom of the box (1001), and a lifting frame is installed at the inner bottom of the box (1001), and a gap is left between the lifting frame and the inner bottom of the box (1001).
6. The moisture-proof corrugated paper box according to claim 1, characterized in that: Reinforcements are installed at the internal corners of the box body (1001).