High-strength waterproof corrugated board

Abstract

The utility model relates to the technical field of corrugated paper boards, and particularly discloses a high-strength waterproof corrugated paper board which comprises an outer box paper board and an inner box paper board, a corrugated paper core is arranged between the outer box paper board and the inner box paper board, and a first groove is formed in the face, facing the corrugated paper core, of the outer box paper board. A first groove is formed in one side of the inner box paperboard, a first closed shockproof cavity is formed between the first groove and the outer wall of the corrugated paper core, a second groove is formed in one side, facing the corrugated paper core, of the inner box paperboard, and a second closed shockproof cavity is formed between the second groove and the corrugated paper core. A first corrugated structure and a second corrugated structure are arranged on the opposite faces of the outer layer and the inner layer respectively, a waterproof coating is arranged on the outer wall of the outer box paperboard, and a protective layer is arranged on the outer surface of the waterproof coating. According to the corrugated board, the strength and the shock resistance of the corrugated board can be effectively improved, the corrugated board has high waterproof and moisture-proof capacity, the phenomenon that the corrugated board is rotten and damaged due to damp in the actual use process is avoided, and the service life of the corrugated board is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paperboards, in particular to high-strength waterproof corrugated paperboards. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which is composed of at least one layer of wavy core paper interlayer (commonly known as "corrugated paper", "corrugated core paper", "corrugated paper core", "corrugated base paper") and a layer of cardboard (also known as "box board", "box board"). It has high mechanical strength and can withstand collisions and falls during transportation. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and cardboard and the structure of the carton itself.

[0003] As a common packaging material, corrugated paper is widely used in the packaging and transportation of various commodities. Although the existing technology can realize the normal use of corrugated paperboard, the existing technology has the problem of poor strength and toughness of the paperboard, and also has the problem of not being able to well protect the paperboard in humid conditions, which cannot meet the market demand. Utility Model Content

[0004] In view of the defects of the above-mentioned prior art, the utility model provides a high-strength waterproof corrugated cardboard with a simple structure and reasonable design. It can effectively improve the strength and seismic resistance of the corrugated cardboard, and has strong waterproof and moisture-proof capabilities, thereby avoiding the corrugated cardboard from rotting and being damaged due to moisture during actual use, thereby increasing the service life of the corrugated cardboard and meeting market demand.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The high-strength waterproof corrugated paperboard comprises an outer box paperboard and an inner box paperboard, a corrugated paper core is arranged between the outer box paperboard and the inner box paperboard, the outer box paperboard, the corrugated paper core and the inner box paperboard are sequentially bonded together, a first groove is arranged on a side of the outer box paperboard facing the corrugated paper core, a first closed shockproof cavity is formed between the first groove and the outer wall of the corrugated paper core, a plurality of first partitions are arranged in the first closed shockproof cavity, and the plurality of first partitions divide the first closed shockproof cavity into a plurality of first chambers, a second groove is arranged on a side of the inner box paperboard facing the corrugated paper core, and the second groove and the corrugated paper core are connected to each other. A second closed shockproof cavity is formed therein, and a plurality of second partitions are arranged in the second closed shockproof cavity, and the plurality of second partitions divide the second closed shockproof cavity into a plurality of second chambers. The corrugated paper core comprises an outer layer and an inner layer, and the opposite surfaces of the outer layer and the inner layer are respectively provided with a first corrugated structure and a second corrugated structure, and the corrugation shapes of the first corrugated structure and the second corrugated structure are both triangular, and are arranged in a staggered manner, and a composite fiber material for reinforcement is arranged in the corrugated structure, and a waterproof coating is provided on the outer wall of the outer box paperboard, and a protective layer is provided on the surface of the waterproof coating.

[0007] In the above description, preferably, the composite fiber material is glass fiber or carbon fiber.

[0008] In the above description, preferably, the waterproof coating is a polyurethane coating or a polyurea coating.

[0009] In the above description, preferably, the protective layer is an acrylic coating or a polyester coating.

[0010] In the above description, preferably, the outer boxboard, the corrugated paper core and the inner boxboard are bonded together by an adhesive.

[0011] The beneficial effects of the utility model are as follows: a first closed shockproof cavity is formed between the first groove and the outer wall of the corrugated paper core, a plurality of first partitions are arranged in the first closed shockproof cavity, and the plurality of first partitions divide the first closed shockproof cavity into a plurality of first chambers; a second groove is arranged on the side of the inner box paperboard facing the corrugated paper core, a second closed shockproof cavity is formed between the second groove and the corrugated paper core, a plurality of second partitions are arranged in the second closed shockproof cavity, and the plurality of second partitions divide the second closed shockproof cavity into a plurality of second chambers; by arranging a plurality of first chambers and second chambers, vibration energy can be absorbed and dispersed, the impact force of vibration on the corrugated paperboard can be reduced, and the shock resistance of the corrugated paperboard can be effectively improved; the corrugated paper core The invention comprises an outer layer and an inner layer, wherein the first corrugated structure and the second corrugated structure are respectively arranged on opposite surfaces of the outer layer and the inner layer, wherein the corrugated shapes of the first corrugated structure and the second corrugated structure are both triangular and arranged in a staggered manner, and a composite fiber material for reinforcement is arranged in the corrugated structure, and the strength and toughness of the corrugated cardboard can be effectively improved by arranging the first corrugated structure and the second corrugated structure staggered with each other inside and adding the composite fiber material thereto; a waterproof coating is arranged on the outer wall of the outer box cardboard, and a protective layer is arranged on the surface of the waterproof coating, so that it has strong waterproof and moisture-proof capabilities, thereby preventing the corrugated cardboard from being rotten and damaged due to moisture during actual use, thereby improving the service life of the corrugated cardboard and meeting market demand. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 : It is a schematic diagram of the exploded structure of an embodiment of the utility model;

[0013] Figure 2 : It is a cross-sectional structural schematic diagram of an embodiment of the utility model;

[0014] Explanation of the accompanying drawings: 10-outer boxboard, 11-inner boxboard, 12-first closed shock-proof cavity, 13-first partition, 14-first chamber, 15-second closed shock-proof cavity, 16-second partition, 17-second chamber, 18-waterproof coating, 19-protective layer, 20-corrugated paper core, 21-outer layer, 22-inner layer, 23-first corrugated structure, 24-second corrugated structure. DETAILED DESCRIPTION

[0015] In order to more clearly explain the structural features, technical means and specific purposes and functions achieved by the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments:

[0016] This embodiment: Figure 1-2 As shown, the high-strength waterproof corrugated paperboard includes an outer box paperboard 10 and an inner box paperboard 11, a corrugated paper core 20 is arranged between the outer box paperboard 10 and the inner box paperboard 11, and the outer box paperboard 10, the corrugated paper core 20 and the inner box paperboard 11 are sequentially bonded together by an adhesive;

[0017] A first groove is provided on one side of the outer boxboard 10 facing the corrugated paper core 20, a first closed shockproof cavity 12 is formed between the first groove and the outer wall of the corrugated paper core 20, a plurality of first partitions 13 are provided in the first closed shockproof cavity 12, and the plurality of first partitions 13 divide the first closed shockproof cavity 12 into a plurality of first chambers 14, a second groove is provided on one side of the inner boxboard 11 facing the corrugated paper core 20, a second closed shockproof cavity 15 is formed between the second groove and the corrugated paper core 20, a plurality of second partitions 16 are provided in the second closed shockproof cavity 15, and the plurality of second partitions 16 divide the second closed shockproof cavity 15 into a plurality of second chambers 17, by providing a plurality of first chambers 14 and second chambers 17, vibration energy can be absorbed and dispersed, the impact force of vibration on the corrugated paperboard can be reduced, and the shock resistance of the corrugated paperboard can be effectively improved;

[0018] The corrugated paper core 20 includes an outer layer 21 and an inner layer 22. The first corrugated structure 23 and the second corrugated structure 24 are respectively arranged on the opposite surfaces of the outer layer 21 and the inner layer 22. The corrugated shapes of the first corrugated structure 23 and the second corrugated structure 24 are both triangular, and the arrangement is staggered. The corrugated structure is provided with a composite fiber material for reinforcement, and the composite fiber material is glass fiber. By arranging the first corrugated structure 23 and the second corrugated structure 24 staggered with each other inside and adding glass fiber material thereto, the strength and toughness of the corrugated paperboard can be effectively improved.

[0019] A waterproof coating 18 is provided on the outer wall of the outer box paperboard 10. The waterproof coating 18 is a polyurethane coating, which has strong waterproof and moisture-proof capabilities, thereby preventing the corrugated paperboard from rotting and being damaged due to moisture during actual use, thereby increasing the service life of the corrugated paperboard and meeting market demand. A protective layer 19 is provided on the surface of the waterproof coating 18. The protective layer 19 is an acrylic coating. By providing the protective layer 19, the corrugated paperboard can be protected from erosion by external factors such as ultraviolet rays and chemicals.

[0020] It should be noted that the composite fiber material in this embodiment may also be carbon fiber.

[0021] It should be noted that the waterproof coating 18 in this embodiment may also be a polyurea coating.

[0022] It should be noted that the protective layer 19 in this embodiment may also be a polyester coating.

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Therefore, any modification, equivalent replacement, improvement, etc. made to the above embodiment based on the technical solution of the present invention still falls within the scope of the technical solution of the present invention.

Claims

1. High-strength waterproof corrugated paperboard, including outer box paperboard and inner box paperboard, characterized by: A corrugated paper core is arranged between the outer box cardboard and the inner box cardboard, the outer box cardboard, the corrugated paper core and the inner box cardboard are bonded together in sequence, a first groove is arranged on the side of the outer box cardboard facing the corrugated paper core, a first closed shockproof cavity is formed between the first groove and the outer wall of the corrugated paper core, a plurality of first partitions are arranged in the first closed shockproof cavity, the plurality of first partitions divide the first closed shockproof cavity into a plurality of first chambers, a second groove is arranged on the side of the inner box cardboard facing the corrugated paper core, a second closed shockproof cavity is formed between the second groove and the corrugated paper core, a plurality of second partitions are arranged in the second closed shockproof cavity, the plurality of second partitions divide the second closed shockproof cavity into a plurality of second chambers, the corrugated paper core comprises an outer layer and an inner layer, first corrugated structures and second corrugated structures are respectively arranged on opposite surfaces of the outer layer and the inner layer, the corrugated shapes of the first corrugated structure and the second corrugated structure are both triangular, and the arrangement is staggered, a composite fiber material for reinforcement is arranged in the corrugated structure, a waterproof coating is arranged on the outer wall of the outer box cardboard, and a protective layer is arranged on the surface of the waterproof coating.

2. The high-strength waterproof corrugated paperboard according to claim 1, characterized in that: The composite fiber material is glass fiber or carbon fiber.

3. The high-strength waterproof corrugated paperboard according to claim 1, characterized in that: The waterproof coating is a polyurethane coating or a polyurea coating.

4. The high-strength waterproof corrugated paperboard according to claim 1, characterized in that: The protective layer is acrylic coating or polyester coating.

5. The high-strength waterproof corrugated paperboard according to claim 1, characterized in that: The outer boxboard, corrugated paper core and inner boxboard are bonded together by adhesive.

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