A cardboard box liner with moisture-proof and mildew-proof functions

By introducing a combination structure of corrugated paper base layer, moisture-proof functional layer and antibacterial coating into the inner lining of the cardboard box, the problem of insufficient moisture-proof and mildew-proof performance of the inner lining of the cardboard box is solved, achieving better moisture-proof and mildew-proof effect and improving the use effect of the cardboard box.

CN224448670UActive Publication Date: 2026-07-03DONGGUAN LISHAN PAPER CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
DONGGUAN LISHAN PAPER CO LTD
Filing Date
2025-07-23
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing cardboard box linings lack effective moisture and mildew protection, affecting the box's performance.

Method used

The structure adopts a combination of corrugated paper base layer, moisture-proof functional layer and antibacterial coating, including moisture-proof board, polyethylene film and moisture-proof granules. The moisture-proof and antibacterial effect is improved by spraying antibacterial coating, and ventilation holes are set in the inner wall of the carton lining to enhance moisture-proof performance.

Benefits of technology

It significantly improves the moisture-proof and mildew-proof function of the cardboard box lining, enhances the cardboard box's performance, and ensures the long-term preservation of the contents and the moisture-proof and mildew-proof performance during transportation.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a cardboard box liner with moisture-proof and mildew-proof functions. It relates to the technical field of cardboard box liner structures and aims to solve the problem that existing cardboard box liners do not have good moisture-proof and mildew-proof performance, which affects the usability of the cardboard box. The key technical points include an outer cardboard box packaging with side sealing plates on both sides and an upper baffle at the top. One end of each side sealing plate has an installation end, and the upper end of the upper baffle has a lifting handle. An inner cardboard box liner is provided inside the outer cardboard box packaging. The inner cardboard box liner includes a corrugated paper base layer, a moisture-proof functional layer, and an antibacterial coating. One end of the corrugated paper base layer has a moisture-proof functional layer, and the other end of the moisture-proof functional layer has a moisture-proof functional layer. The moisture-proof functional layer is laminated to the surface of the corrugated paper base layer, and the antibacterial coating is sprayed onto the surface of the moisture-proof functional layer using a spraying process.
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Description

Technical Field

[0001] This utility model relates to the technical field of cardboard box lining structure, and in particular to a cardboard box lining with moisture-proof and mildew-proof functions. Background Technology

[0002] Moisture-proof and mildew-proof cardboard box liners are commonly used in scenarios requiring moisture protection, such as cigarette packaging. These liners have high barrier properties against light, air, and water, effectively isolating moisture and humidity to prevent the inside of the packaging from becoming damp and moldy. At the same time, their anti-corrosion properties protect the goods from microbial damage, making them especially suitable for goods that need to be stored or transported for a long time.

[0003] A search revealed that authorization announcement number CN217945857U discloses a cardboard box with shock absorption, mildew prevention, and moisture resistance functions. The box includes a box body, a top cover, and a mounting plate. The inner wall of the box body is fitted with a protective layer. The top cover is symmetrically mounted on the top of the box body. The mounting plate is installed inside the box body, and multiple sets of springs are symmetrically mounted on the top of the mounting plate. Multiple sets of air cushions are symmetrically mounted inside the box body. This invention utilizes the springs, which are flexible and can change shape under external pressure and return to their original shape when the pressure is removed. The air cushions have a certain degree of resilience and contain a certain amount of compressed air, which can reduce vibration through compression, thus achieving a shock absorption effect. The support plate provides a certain area for contacting the stored items, providing a contact point for the stored items, thereby achieving the purpose of shock absorption and protecting the items stored inside the box from damage.

[0004] However, existing cardboard box liners do not have good moisture-proof and mildew-proof properties, which affects the performance of the cardboard boxes. Therefore, there is an urgent need in the market for a cardboard box liner with moisture-proof and mildew-proof functions to solve these problems. Utility Model Content

[0005] The purpose of this utility model is to provide a carton liner with moisture-proof and mildew-proof functions, so as to solve the problem mentioned in the background art that the existing carton liner does not have good moisture-proof and mildew-proof performance, which will affect the use of the carton.

[0006] To achieve the above objectives, the present invention provides the following technical solution:

[0007] A cardboard box liner with moisture-proof and mildew-proof functions includes an outer cardboard box packaging, with side sealing plates on both sides of the outer cardboard box packaging, and an upper baffle at the top of the outer cardboard box packaging. One end of each side sealing plate has an installation end, and the upper end of the upper baffle has a lifting handle. An inner cardboard box liner is provided inside the outer cardboard box packaging. The inner cardboard box liner includes a corrugated paper base layer, a moisture-proof functional layer, and an antibacterial coating. One end of the corrugated paper base layer has a moisture-proof functional layer, and the other end of the moisture-proof functional layer has a moisture-proof functional layer.

[0008] Preferably, the side sealing plate is connected to the outer packaging of the carton by adhesive, the mounting end and the side sealing plate are an integral structure, and the mounting end is provided with a limiting groove inside.

[0009] Preferably, the inside of the lifting handle is provided with a handle groove, the lifting handle and the upper baffle are integrally formed, and both ends of the lifting handle are provided with limit seats, the limit seats and the lifting handle are integrally formed, and the lifting handle and the limit groove are correspondingly set.

[0010] Preferably, the inner lining of the carton is provided with a placement chamber, and the inner wall of the inner lining of the carton is provided with ventilation holes. The ventilation holes are provided in a plurality of them and are evenly distributed inside the inner wall of the inner lining of the carton.

[0011] Preferably, the corrugated paper substrate layer includes a substrate board, a bent cardboard, and a protective plate. The bent cardboard is provided on both sides of the substrate board, and a protective plate is provided at one end of the bent cardboard.

[0012] Preferably, the moisture-proof functional layer includes a moisture-proof board and a polyethylene film. One end of the moisture-proof board is provided with a polyethylene film. The interior of the moisture-proof board is provided with a plurality of mounting grooves, which are evenly distributed inside the moisture-proof board. Moisture-proof particles are provided inside the mounting grooves.

[0013] Preferably, the moisture-proof functional layer is laminated onto the surface of the corrugated paper substrate layer, and the antibacterial coating is sprayed onto the surface of the moisture-proof functional layer by a spraying process, wherein the antibacterial coating is an antifungal agent.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] (1) The polyethylene film set by the moisture-proof functional layer of this utility model can improve the moisture-proof effect of the carton. The moisture-proof particles can be conveniently installed and placed through the installation groove. The moisture-proof particles can improve the moisture-proof effect of the moisture-proof functional layer. The antibacterial coating can improve the antibacterial effect of the moisture-proof functional layer. This can make the inner lining of the carton have better moisture-proof and mildew-proof functions, thereby making the carton better in use.

[0016] (2) The present invention can seal the carton by means of the installation end set by the side sealing plate and the limiting seat set by the lifting handle. The lifting handle groove can easily lift and transport the carton, making the carton more convenient to use. The inner wall of the carton lining is provided with several evenly distributed ventilation holes. The ventilation holes can make the carton lining have good air permeability, which can improve the moisture-proof effect of the carton lining. Attached Figure Description

[0017] Figure 1 This is the overall front view of the present invention;

[0018] Figure 2 This is a perspective view of the inner lining of the cardboard box according to this utility model;

[0019] Figure 3 This is a partial cross-sectional view of the inner lining of the cardboard box of this utility model;

[0020] Figure 4 This is a partial cross-sectional view of the corrugated paper substrate layer of this utility model;

[0021] Figure 5 This is a partial cross-sectional view of the moisture-proof functional layer of this utility model.

[0022] In the diagram: 1. Outer packaging of the carton; 2. Side sealing plate; 201. Mounting end; 202. Limiting groove; 3. Top baffle; 301. Lifting handle; 302. Handle groove; 303. Limiting seat; 4. Inner lining of the carton; 401. Placement chamber; 402. Ventilation hole; 5. Corrugated paper base layer; 501. Base board; 502. Bending cardboard; 503. Protective board; 6. Moisture-proof functional layer; 601. Moisture-proof board; 602. Polyethylene film; 603. Mounting groove; 7. Antibacterial coating; 8. Moisture-proof particles. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Please see Figure 1-5This utility model provides an embodiment of a cardboard box liner with moisture-proof and mildew-proof functions, including a cardboard box outer packaging 1, with side sealing plates 2 on both sides of the cardboard box outer packaging 1, the side sealing plates 2 being glued to the cardboard box outer packaging 1, an installation end 201 being an integral structure with the side sealing plates 2, a limiting groove 202 being provided inside the installation end 201, an upper baffle 3 being provided at the upper end of the cardboard box outer packaging 1, an installation end 201 being provided at one end of the side sealing plates 2, a lifting handle 301 being provided at the upper end of the upper baffle 3, a cardboard box liner 4 being provided inside the cardboard box outer packaging 1, a placement chamber 401 being provided inside the cardboard box liner 4, and ventilation holes 402 being provided inside the inner wall of the cardboard box liner 4, with a plurality of ventilation holes 402 being evenly distributed inside the inner wall of the cardboard box liner 4, the cardboard box liner 4 comprising corrugated paper. The corrugated paper base layer 5, the moisture-proof functional layer 6, and the antibacterial coating 7 are all present. The moisture-proof functional layer 6 is provided at one end of the corrugated paper base layer 5, and the moisture-proof functional layer 6 is provided at the other end of the corrugated paper base layer 5. The corrugated paper base layer 5 includes a base board 501, a bent cardboard 502, and a protective plate 503. Both sides of the base board 501 are provided with bent cardboard 502, and one end of the bent cardboard 502 is provided with a protective plate 503. The outer packaging 1 of the carton can protect the inner lining of the carton, and the side sealing plate 2 can seal both sides of the outer packaging 1 of the carton. The ventilation holes 402 provide good ventilation for the inner lining of the carton, which can improve the moisture-proof effect of the inner lining of the carton. It should be noted that, in order to save space and highlight the innovative elements of this patent, such as how the inner lining of the carton is specifically processed, it will not be described in detail in this patent.

[0025] See Figure 1 The inside of the lifting handle 301 is provided with a handle groove 302. The lifting handle 301 and the upper baffle 3 are integral structures. Both ends of the lifting handle 301 are provided with limit seats 303. The limit seats 303 and the lifting handle 301 are integral structures. The lifting handle 301 and the limit groove 202 are correspondingly arranged. The handle groove 302 provided by the lifting handle 301 can easily lift and transport the carton, making the carton more convenient to use. The corresponding lifting handle 301 and the limit groove 202 can seal the carton.

[0026] See Figure 3 , Figure 4 and Figure 5The moisture-proof functional layer 6 includes a moisture-proof board 601 and a polyethylene film 602. A polyethylene film 602 is attached to one end of the moisture-proof board 601. Several mounting grooves 603 are evenly distributed within the moisture-proof board 601. Moisture-proof particles 8 are placed inside the mounting grooves 603. The moisture-proof functional layer 6 is laminated onto the surface of the corrugated paper base layer 5. An antibacterial coating 7 is sprayed onto the surface of the moisture-proof functional layer 6 using a spraying process. The antibacterial coating 7 is an anti-mildew agent. The moisture-proof functional layer 6 improves the moisture-proof effect of the carton. The mounting grooves 603 facilitate the installation and placement of the moisture-proof particles 8, which in turn enhance the moisture-proof effect of the moisture-proof functional layer 6. The antibacterial coating 7 further enhances the antibacterial effect of the moisture-proof functional layer 6. This provides the carton lining with better moisture-proof and mildew-proof functions.

[0027] Working principle: During use, the carton is sealed by the mounting end 201 of the side sealing plate 2 and the limiting seat 303 of the lifting handle 301. The lifting groove 302 of the lifting handle 301 allows for easy lifting and transportation of the carton, making it more convenient to use. The inner wall of the carton liner 4 has several evenly distributed ventilation holes 402, which allow the carton liner 4 to have good air permeability, thus improving its moisture-proof effect. The polyethylene film 602 of the moisture-proof functional layer 6 further enhances the moisture-proof effect of the carton. The mounting groove 603 allows for easy installation of moisture-proof particles 8, which enhance the moisture-proof effect of the moisture-proof functional layer 6. The antibacterial coating 7 further enhances the antibacterial effect of the moisture-proof functional layer 6. This gives the carton liner better moisture-proof and mildew-proof functions, resulting in a better overall performance of the carton.

[0028] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A paper box liner with moisture-proof and mildew-proof functions, comprising a paper box outer package (1), characterized in that: The outer packaging of the carton (1) is provided with side sealing plates (2) on both sides, and an upper baffle (3) is provided at the upper end of the outer packaging of the carton (1). An installation end (201) is provided at one end of the side sealing plate (2), and a lifting handle (301) is provided at the upper end of the upper baffle (3). The inner side of the outer packaging of the carton (1) is provided with a carton liner (4). The carton liner (4) includes a corrugated paper base layer (5), a moisture-proof functional layer (6), and an antibacterial coating (7). A moisture-proof functional layer (6) is provided at one end of the corrugated paper base layer (5), and a moisture-proof functional layer (6) is provided at one end of the moisture-proof functional layer (6).

2. The paper box liner with moisture-proof and mildew-proof functions according to claim 1, characterized in that: The side sealing plate (2) is connected to the outer packaging of the carton (1) by adhesive. The mounting end (201) and the side sealing plate (2) are an integral structure. The mounting end (201) is provided with a limiting groove (202) inside.

3. The paper box liner with moisture-proof and mildew-proof functions according to claim 2, characterized in that: The inside of the lifting handle (301) is provided with a handle groove (302). The lifting handle (301) and the upper baffle (3) are integral structures. Both ends of the lifting handle (301) are provided with limit seats (303). The limit seats (303) and the lifting handle (301) are integral structures. The lifting handle (301) and the limit groove (202) are correspondingly provided.

4. The paper box liner with moisture-proof and mildew-proof functions according to claim 3, characterized in that: The inner wall of the carton liner (4) is provided with a placement chamber (401), and the inner wall of the carton liner (4) is provided with ventilation holes (402). There are several ventilation holes (402), and the ventilation holes (402) are evenly distributed inside the inner wall of the carton liner (4).

5. The paper box liner with moisture-proof and mildew-proof functions according to claim 4, characterized in that: The corrugated paper substrate layer (5) includes a substrate board (501), a bent cardboard (502) and a protective plate (503). Both sides of the substrate board (501) are provided with bent cardboard (502), and one end of the bent cardboard (502) is provided with a protective plate (503).

6. The paper box liner with moisture-proof and mildew-proof functions according to claim 5, characterized in that: The moisture-proof functional layer (6) includes a moisture-proof board (601) and a polyethylene film (602). One end of the moisture-proof board (601) is provided with a polyethylene film (602). The interior of the moisture-proof board (601) is provided with an installation groove (603). There are several installation grooves (603) evenly distributed inside the moisture-proof board (601). Moisture-proof particles (8) are provided inside the installation grooves (603).

7. The paper box liner with moisture-proof and mildew-proof functions according to claim 6, characterized in that: The moisture-proof functional layer (6) is laminated on the surface of the corrugated paper substrate layer (5), and the antibacterial coating (7) is sprayed onto the surface of the moisture-proof functional layer (6) by a spraying process. The antibacterial coating (7) is an antifungal agent.