Carton with bottom water resistance

Abstract

The utility model belongs to the field of carton especially prevents the paper box of bottom water seepage, its including carton side plate and carton bottom plate, the four side bottom of carton side plate is fixedly connected with the four side inner wall of carton bottom plate through the degradable sealant strip respectively, the top of carton bottom plate is equipped with the article tray, the surface of article tray is compounded with the degradable polyethylene shower film, the utility model discloses the degradable sealant strip of setting up blocks off assembly gap, utilizes the degradable polyethylene shower film and carries out physical barrier, and again cooperation high water absorption resin composite paper locks water and high strength cowhide lining paper secondary resistance, can cut off the water seepage channel from the source, solved the traditional carton bottom easy water seepage problem, adapts to humid environment or need waterproof article package, and carton bottom plate four corners adds the anti -collision angle, can resist the collision friction when carrying, stacking, avoid the corner wear and tear, the silica gel pad of anti -collision angle bottom, can insulate the ground water mark and the bottom plate contact, prolongs the service life of carton.

Description

Technical Field

[0001] This utility model relates to the field of cardboard box technology, and in particular to a cardboard box that prevents water seepage from the bottom. Background Technology

[0002] Cardboard boxes are paper packaging containers made from corrugated cardboard or single-layer cardboard as the core raw material, through processes such as die-cutting, creasing, stapling, or gluing. They are lightweight, recyclable, low-cost, and offer good cushioning. They can be designed in different specifications and structures (such as slotted, interlocking, and folding types) to meet specific needs. Widely used in food, electronics, logistics, and industrial products, they are primarily used for product storage, protection, and transportation. They can also be printed to display brands and label information, making them one of the most common media used in modern packaging systems.

[0003] However, most existing cardboard boxes rely on a single cardboard structure, and gaps easily remain at the assembly points of the bottom and side panels. Without effective sealing measures, water from the ground or ambient moisture can easily seep in through these gaps. Furthermore, the bottom panel lacks a dedicated waterproof barrier and absorbent structure, allowing even small amounts of water to penetrate the cardboard and cause damage to the contents. This makes them unsuitable for storage or transportation scenarios requiring waterproofing. Additionally, the exposed corners of the boxes are prone to collisions and friction during handling and stacking, leading to wear and tear on the edges. Damaged corners not only reduce the overall structural stability of the box but also create new channels for water seepage, allowing moisture to penetrate more easily and shortening the box's lifespan.

[0004] Therefore, we propose a cardboard box that prevents water seepage from the bottom to solve the above problems. Utility Model Content

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A cardboard box for preventing bottom water leakage includes side panels and a bottom panel. The bottom of the four sides of the side panels is fixedly connected to the inner walls of the four sides of the bottom panel by biodegradable sealing strips. The inner wall of the bottom of the bottom panel is coated with polytetrafluoroethylene. The top of the bottom panel is provided with a storage tray, and the surface of the storage tray is coated with a biodegradable polyethylene film.

[0007] Specifically, a carton cover is detachably installed on the top of the side panel of the carton for easy sealing of the carton.

[0008] Specifically, the side panels of the cardboard box are provided with handle openings on both sides to facilitate handling and transportation of the cardboard box.

[0009] Specifically, anti-collision corners are fixedly installed on the four outer corners of the bottom plate of the carton, and the inner side of the four anti-collision corners is coated with a polyethylene wax coating to prevent the carton from leaking due to wear on the corners.

[0010] Specifically, silicone pads are fixedly installed at the bottom of each of the four anti-collision corners to prevent water from accumulating on the ground and wetting the bottom of the cardboard box.

[0011] Specifically, the bottom of the storage tray is fixedly equipped with super absorbent resin composite paper, which can quickly absorb and lock in moisture to prevent moisture from spreading into the box.

[0012] Specifically, a high-strength kraft paper is fixedly installed at the bottom of the superabsorbent resin composite paper. The bottom of the high-strength kraft paper is fixedly connected to the inner wall of the bottom of the carton bottom plate, which can enhance the bottom load-bearing capacity and further prevent residual moisture from penetrating.

[0013] Specifically, the storage tray, super absorbent resin composite paper, and high-strength kraft paper form a triple waterproof layer. All four sides of the triple waterproof layer are heat-sealed to completely seal the gaps between the layers and prevent water from seeping in from the edges.

[0014] Compared with existing technologies, the advantages of this utility model are as follows: by sealing the assembly gaps with biodegradable sealing strips, using biodegradable polyethylene film for physical barrier, and combining it with super absorbent resin composite paper for water locking and high-strength kraft paper for secondary barrier, the water seepage channel can be cut off from the source. Even if a small amount of water seeps in, it can be quickly absorbed and locked, completely solving the problem of easy water seepage at the bottom of traditional cardboard boxes. It is suitable for packaging items in humid environments or that require waterproofing. In addition, anti-collision corners are added to the four corners of the cardboard box bottom plate to resist collisions and friction during handling and stacking, avoiding edge wear. The silicone pads at the bottom of the anti-collision corners can prevent ground water from contacting the bottom plate, extending the service life of the cardboard box. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of a cardboard box for preventing bottom water seepage according to the present invention.

[0016] Figure 2 This is a three-dimensional structural disassembly diagram of a cardboard box designed to prevent bottom water seepage according to the present invention.

[0017] Figure 3 A three-dimensional structural breakdown diagram of the bottom plate, storage tray, super absorbent resin composite paper, high-strength kraft paper, polytetrafluoroethylene coating and biodegradable polyethylene film of a cardboard box that prevents bottom water seepage according to this utility model.

[0018] Figure 4 This is a three-dimensional structural diagram of the anti-collision corner, silicone pad, and polyethylene wax coating of a cardboard box to prevent bottom water seepage proposed in this utility model.

[0019] In the picture: 1. Side panel of carton; 2. Carton lid; 3. Carton bottom panel; 4. Anti-collision corner; 5. Silicone pad; 6. Storage tray; 7. Super absorbent resin composite paper; 8. High-strength kraft paper; 9. Polytetrafluoroethylene coating; 10. Polyethylene wax coating; 11. Biodegradable polyethylene film. Detailed Implementation

[0020] Reference Figure 1-4 A cardboard box for preventing bottom water seepage includes a side panel 1 and a bottom panel 3. The bottom of the four sides of the side panel 1 is fixedly connected to the inner walls of the four sides of the bottom panel 3 by biodegradable sealing strips. The inner wall of the bottom of the bottom panel 3 is coated with a polytetrafluoroethylene coating 9. The top of the bottom panel 3 is provided with a storage tray 6, and the surface of the storage tray 6 is coated with a biodegradable polyethylene film 11.

[0021] In this embodiment, a carton cover 2 is detachably installed on the top of the carton side panel 1 to facilitate sealing the carton.

[0022] In this embodiment, handle openings are provided on both sides of the carton side panel 1 to facilitate handling and transportation of the carton.

[0023] In this embodiment, anti-collision corners 4 are fixedly installed on the four outer corners of the bottom plate 3 of the carton, and the inner sides of the four anti-collision corners 4 are coated with polyethylene wax coating 10 to prevent the carton from leaking due to edge wear.

[0024] In this embodiment, silicone pads 5 are fixedly installed at the bottom of the four anti-collision corners 4 to prevent water from the ground from soaking the bottom plate 3 of the cardboard box.

[0025] In this embodiment, a super absorbent resin composite paper 7 is fixedly installed at the bottom of the storage tray 6, which can quickly absorb and lock in moisture to prevent moisture from spreading into the box.

[0026] In this embodiment, a high-strength kraft paper 8 is fixedly installed at the bottom of the superabsorbent resin composite paper 7. The bottom of the high-strength kraft paper 8 is fixedly connected to the bottom inner wall of the carton bottom plate 3, which can enhance the bottom load-bearing capacity and further prevent residual moisture from penetrating.

[0027] In this embodiment, the storage tray 6, the super absorbent resin composite paper 7, and the high-strength kraft paper 8 form a triple waterproof layer. All four sides of the triple waterproof layer are heat-sealed to completely seal the gaps between the layers and prevent water from seeping in from the edges.

[0028] Working principle: When using the cardboard box, the worker folds the bottom plate 3 of the box to form its shape. Then, the side plate 1 of the box is unfolded to form a rectangular frame. The bottom plate 3 and the side plate 1 are then assembled. At the contact point between the bottom plate 3 and the side plate 1, biodegradable sealing strips are affixed. After pressing, the sealing strips allow the bottom plate 3 and the side plate 1 to naturally adhere, sealing any gaps and water seepage channels. The top of the bottom plate 3 is equipped with high-strength kraft paper 8, super absorbent resin composite paper 7, and a storage tray 6. The storage tray 6 is located above the super absorbent resin composite paper 7, and the high-strength kraft paper 8 is located below the super absorbent resin composite paper 7. The surface of the storage tray 6 is covered with a biodegradable polyethylene film 11. After the pallets 6 are assembled together, their four sides are heat-sealed to completely seal the gaps between the layers and prevent water from seeping in from the edges. At the same time, the four corners of the bottom plate 3 of the carton are equipped with anti-collision corners 4. The four anti-collision corners 4 prevent water seepage caused by wear at the four corners of the bottom plate 3 of the carton. In addition, each of the four corners is equipped with a silicone pad 5 to prevent water stains on the ground from wetting the bottom plate 3 of the carton. The biodegradable polyethylene film 11 is the first waterproof barrier, which can improve the wear resistance of the bottom and prevent the film layer from being damaged during handling. When a small amount of water seeps in and penetrates the storage pallet 6 and the biodegradable polyethylene film 11, the super absorbent resin composite paper 7 can quickly absorb and lock in the moisture to prevent the moisture from spreading into the box. The high-strength kraft paper 8 can enhance the load-bearing capacity of the bottom and further block the penetration of residual moisture, thereby improving the bottom waterproof effect of the carton.

[0029] The technological advancements of this invention compared to existing technologies are as follows: By sealing assembly gaps with biodegradable sealing strips and using biodegradable polyethylene film 11 for physical barrier, combined with superabsorbent resin composite paper 7 for water locking and high-strength kraft paper 8 for secondary barrier, the seepage channels can be cut off at the source. Even if a small amount of water seeps in, it can be quickly absorbed and locked, completely solving the problem of easy water seepage at the bottom of traditional cardboard boxes. It is suitable for packaging items in humid environments or that require waterproofing. Furthermore, the four corners of the cardboard box bottom plate 3 are equipped with anti-collision corners 4, which can resist collisions and friction during handling and stacking, and prevent edge wear. The silicone pads 5 at the bottom of the anti-collision corners 4 can prevent ground water from contacting the bottom plate, extending the service life of the cardboard box.

Claims

1. A cardboard box designed to prevent water seepage from the bottom, characterized in that, The carton includes a side panel (1) and a bottom panel (3). The bottom of the four sides of the side panel (1) is fixedly connected to the inner walls of the four sides of the bottom panel (3) by biodegradable sealing strips. The bottom inner wall of the bottom panel (3) is coated with a polytetrafluoroethylene coating (9). The top of the carton bottom plate (3) is provided with a storage tray (6), and the surface of the storage tray (6) is coated with a biodegradable polyethylene film (11).

2. A cardboard box for preventing bottom water leakage according to claim 1, characterized in that, The top of the carton side panel (1) is detachably fitted with a carton cover (2).

3. A cardboard box for preventing bottom water leakage according to claim 1, characterized in that, The side panel (1) of the carton is provided with handle openings on both sides.

4. A cardboard box for preventing bottom leakage according to claim 1, characterized in that, Anti-collision corners (4) are fixedly installed on the four outer corners of the bottom plate (3) of the carton, and the inner sides of the four anti-collision corners (4) are coated with polyethylene wax coating (10).

5. A cardboard box for preventing bottom water seepage according to claim 4, characterized in that, Silicone pads (5) are fixedly installed at the bottom of the four anti-collision corners (4).

6. A cardboard box for preventing bottom water leakage according to claim 1, characterized in that, The bottom of the storage tray (6) is fixedly installed with super absorbent resin composite paper (7).

7. A cardboard box for preventing bottom water seepage according to claim 6, characterized in that, The bottom of the superabsorbent resin composite paper (7) is fixedly installed with high-strength kraft paper (8), and the bottom of the high-strength kraft paper (8) is fixedly connected to the bottom inner wall of the carton bottom plate (3).

8. A cardboard box for preventing bottom water seepage according to claim 7, characterized in that, The storage tray (6), super absorbent resin composite paper (7) and high-strength kraft paper (8) form a triple waterproof layer, and the four sides of the triple waterproof layer are heat-sealed.

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