Moisture-proof composite paperboard

Abstract

The utility model discloses a moistureproof composite paperboard which comprises waterproof composite outer layers, waterproof composite inner layers and waterproof composite outer layers, reinforcing core layers are installed on the inner side of the waterproof composite outer layer, a damp-proof composite layer is connected between the reinforcing core layers, the reinforcing core layers comprise corrugated medium paper, and the corrugated medium paper is connected between the waterproof composite outer layer and the damp-proof composite layer; the reinforcing supporting pieces are arranged on the inner side of the corrugating medium paper in a staggered mode, and the reinforcing supporting pieces are used for supporting the corrugating medium paper. According to the utility model, the corrugated medium paper is supported between the waterproof composite outer layer and the moisture-proof composite layer through the arrangement mode that the corrugated medium paper is matched with the reinforcing support piece, so that the structural strength and the buffer performance of the composite paperboard are enhanced, and the gaps among the corrugated medium paper, the waterproof composite outer layer and the reinforcing core layer are filled through the support of the reinforcing support piece, so that the moisture-proof composite paperboard is formed. Therefore, the strength of the reinforcing supporting piece is higher, the overall bearing capacity of the composite paperboard is better, and the shaping capacity is higher.

Description

Technical Field

[0001] The utility model relates to the field of composite paperboard, in particular to a moisture-proof composite paperboard. Background Art

[0002] Corrugated paperboard is a composite paperboard made of one or more layers of corrugated paper bonded between several layers of paper or paperboard. It is mostly used to make corrugated boxes. Corrugated paperboard is widely used in product packaging because of its low price, easy processing, good cushioning and compression resistance.

[0003] The core layer of the corrugated cardboard is made of corrugated paper or honeycomb paper. It is the core part of the entire cardboard, providing structural strength and cushioning performance. The cross-section of the corrugated paper is generally serpentine and arranged on the inner side of the cardboard. In actual application, due to the large gap between the corrugated paper and the outer and inner layers, it is easy to deform after being compressed, making the overall bearing capacity of the cardboard poor, and it is easy to become deflated due to external force or extrusion of foreign objects. Utility Model Content

[0004] The purpose of the utility model is to provide a moisture-proof composite paperboard to solve the problems raised in the above background technology.

[0005] To achieve the above purpose, the utility model provides the following technical solution: a moisture-proof composite paperboard, comprising:

[0006] A waterproof composite outer layer, wherein the waterproof composite outer layer is symmetrically arranged in parallel;

[0007] A reinforcing core layer is installed on the inner side of the waterproof composite outer layer, and a moisture-proof composite layer is connected between the reinforcing core layers. The reinforcing core layer includes:

[0008] Corrugated core paper, the corrugated core paper is connected between the waterproof composite outer layer and the moisture-proof composite layer;

[0009] The reinforcing support members are staggeredly arranged on the inner side of the corrugated core paper, and the reinforcing support members are used to support the corrugated core paper.

[0010] Preferably, the corrugated core paper comprises:

[0011] A first arc-shaped support portion and a second arc-shaped support portion, wherein a plurality of the first arc-shaped support portions and the second arc-shaped support portions are staggered and connected end to end, and the depressions of the first arc-shaped support portions and the second arc-shaped support portions are in opposite directions.

[0012] Preferably, the reinforcing support member comprises:

[0013] A triangular support bar, the cross section of which is triangular, and the triangular support bar is supported on the inner side of the corrugated core paper, and the triangular support bar is hollow;

[0014] The support tube is inserted into the interior of the triangular support bar, and the support tube is tangent to the inner wall of the triangular support bar.

[0015] Preferably, the reinforcing support member further comprises:

[0016] The reinforcing rib is connected to one corner of the triangular support bar, and the other two corners of the triangular support bar are supported on the inner side of the corrugated core paper.

[0017] Preferably, the waterproof composite outer layer comprises:

[0018] Kraft paper, wherein the kraft paper is bonded to the reinforcing core layer;

[0019] A waterproof membrane is attached to the outer surface of the kraft paper.

[0020] Preferably, the moisture-proof composite layer comprises:

[0021] A flame retardant layer, wherein the flame retardant layer is bonded to the reinforcing core layer;

[0022] An anti-insect board, the anti-insect board is bonded to the surface of the flame retardant layer;

[0023] The activated carbon plate is bonded and connected to the surface of the anti-insect board.

[0024] Preferably, the flame retardant layer and the activated carbon plate are both filled with desiccant.

[0025] Technical effects and advantages of the utility model:

[0026] The utility model utilizes a configuration mode in which corrugated core paper and a reinforcing support member cooperate with each other, and supports the corrugated core paper between the waterproof composite outer layer and the moisture-proof composite layer to enhance the structural strength and buffering performance of the composite paperboard, and supports the shape of the corrugated core paper through the reinforcing support member to fill the gap between the corrugated core paper, the waterproof composite outer layer and the reinforcing core layer, thereby making the strength of the reinforcing support member higher, and making the overall load-bearing capacity of the composite paperboard better and the shaping ability stronger. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0028] Figure 2 It is a schematic diagram of the front structure of the utility model.

[0029] Figure 3 It is a schematic diagram of the structure of the waterproof composite outer layer of the utility model.

[0030] Figure 4 It is a schematic diagram of the structure of the moisture-proof composite layer of the utility model.

[0031] Figure 5 It is a schematic diagram of the front structure of the reinforcement layer of the utility model.

[0032] In the figure: 1. Waterproof composite outer layer; 11. Kraft paper; 12. Waterproof membrane; 2. Reinforced core layer; 21. Corrugated core paper; 211. First arc-shaped support portion; 212. Second arc-shaped support portion; 22. Reinforced support member; 221. Triangular support bar; 222. Support tube; 223. Reinforcement rib; 3. Moisture-proof composite layer; 31. Flame-retardant layer; 32. Anti-insect board; 33. Activated carbon board; 34. Desiccant. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] The utility model provides Figure 1-5 A moisture-proof composite paperboard is shown, comprising: a waterproof composite outer layer 1, which is symmetrically arranged in parallel; a reinforcing core layer 2 is installed on the inner side of the waterproof composite outer layer 1, and a moisture-proof composite layer 3 is connected between the reinforcing core layers 2, and the reinforcing core layer 2 comprises: a corrugated core paper 21, which is connected between the waterproof composite outer layer 1 and the moisture-proof composite layer 3; reinforcing support members 22, which are staggeredly arranged on the inner side of the corrugated core paper 21, and the reinforcing support members 22 are used to support the corrugated core paper 21, and are supported between the waterproof composite outer layer 1 and the moisture-proof composite layer 3 through the corrugated core paper 21 to enhance the structural strength and buffering performance of the composite paperboard, and the shape of the corrugated core paper 21 is supported by the reinforcing support members 22 to fill the gap between the corrugated core paper 21 and the waterproof composite outer layer 1 and the reinforcing core layer 2, so that the strength of the reinforcing support members 22 is higher, and the overall bearing capacity of the composite paperboard is better and the shaping ability is stronger.

[0035] Specifically, the corrugated core paper 21 includes: a first arc-shaped support portion 211 and a second arc-shaped support portion 212, and multiple first arc-shaped support portions 211 and second arc-shaped support portions 212 are staggered and connected end to end, and the depressions of the first arc-shaped support portions 211 and the second arc-shaped support portions 212 are in opposite directions, so that multiple first arc-shaped support portions 211 and second arc-shaped support portions 212 form a serpentine structure, which is supported between the waterproof composite outer layer 1 and the moisture-proof composite layer 3, so as to facilitate the support and buffering of the relative position between the waterproof composite outer layer 1 and the moisture-proof composite layer 3. The reinforcing support member 22 includes: a triangular support bar 221, the cross-section of the triangular support bar 221 is triangular, and the triangular support bar 221 is supported on the inner side of the corrugated core paper 21, and the triangular support bar 221 is hollow; a support tube 222, the support tube 222 is inserted into the inside of the triangular support bar 221, and the support tube 222 is tangent to the inner wall of the triangular support bar 221. Since the triangle has the highest stability, the triangular support bar 221 is supported on the inner side of the first arc-shaped support portion 211 and the second arc-shaped support portion 212, so as to facilitate the support and shaping of the first arc-shaped support portion 211 and the second arc-shaped support portion 212 to improve the stability of the corrugated core paper 21, and the support tube 222 is tangent to the inside of the triangular support bar 221, so as to facilitate the shaping support of the triangular support bar 221 to increase the strength of the triangular support bar 221. The reinforcing support member 22 also includes: reinforcing ribs 223, which are connected to a corner of the triangular support bar 221, and the other two corners of the triangular support bar 221 are supported on the inner side of the corrugated core paper 21. The reinforcing ribs 223 facilitate the connection and fixation of the relative positions between the triangular support bar 221 and the waterproof composite outer layer 1 and the moisture-proof composite layer 3, so as to facilitate the installation of the reinforcing support member 22.

[0036] Furthermore, the waterproof composite outer layer 1 includes: kraft paper 11, which is bonded to the reinforcing core layer 2; a waterproof membrane 12, which is attached to the outer surface of the kraft paper 11, and the waterproof membrane 12 is a PVC polymer film, which is convenient for preventing external liquids from penetrating into the interior of the kraft paper 11. The kraft paper 11 has high tensile strength and tear strength, can withstand greater weight and pressure, and has good air permeability, which can prevent internal items from getting damp and moldy.

[0037] Furthermore, the moisture-proof composite layer 3 includes: a flame retardant layer 31, which is bonded to the reinforcing core layer 2; an insect-proof board 32, which is bonded to the surface of the flame retardant layer 31, and the flame retardant layer 31 is environmentally friendly halogen-free flame-retardant polypropylene. The flame retardant layer 31 has an environmentally friendly performance while achieving a flame retardant function; an activated carbon board 33 is bonded to the surface of the insect-proof board 32; the insect-proof board 32 is made of camphor fiber material, and camphor wood has a good insect-proof effect, which can prevent the composite paperboard from being eaten by insects. The activated carbon board 33 has a high specific surface area and a rich pore structure, which can effectively It absorbs harmful gases, chemicals and odors in the composite paperboard, thereby purifying the air quality. The activated carbon board 33 can absorb and remove odors. The activated carbon board 33 has a certain moisture absorption capacity, which can reduce the impact of moisture on the packaging, prevent mildew and corrosion, and extend the shelf life of the product. By absorbing harmful substances and moisture, the activated carbon board 33 can protect the products in the package from pollution and moisture. It is particularly suitable for packaging of products with high sensitivity. Since activated carbon is a natural material, it is harmless to the environment and human body, and will not release harmful substances during use, which meets environmental protection and health standards. Furthermore, the interior of the flame retardant layer 31 and the activated carbon board 33 are filled with a desiccant 34. The filling of the desiccant 34 can effectively absorb moisture in the cardboard, prevent water from intruding, keep the internal environment dry, and prevent the product from getting damp, moldy or corroded. By reducing humidity, the desiccant 34 can extend the shelf life of the product in the package, especially for food, medicine, electronic products and other items that are sensitive to humidity. In an environment with large temperature changes, the desiccant 34 can prevent the condensation of moisture inside and outside the package and protect the product surface from the influence of condensed water. By controlling humidity, the desiccant 34 can effectively prevent the deterioration of product quality and maintain the appearance, performance and service life of the product.

[0038] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A moisture-proof composite paperboard, comprising: A waterproof composite outer layer (1), wherein the waterproof composite outer layer (1) is symmetrically arranged in parallel; The invention is characterized in that a reinforcing core layer (2) is installed on the inner side of the waterproof composite outer layer (1), a moisture-proof composite layer (3) is connected between the reinforcing core layers (2), and the reinforcing core layer (2) comprises: Corrugated core paper (21), the corrugated core paper (21) being connected between the waterproof composite outer layer (1) and the moisture-proof composite layer (3); The reinforcing support members (22) are arranged in a staggered manner on the inner side of the corrugated core paper (21), and the reinforcing support members (22) are used to support the corrugated core paper (21).

2. The moisture-proof composite paperboard according to claim 1, characterized in that: The corrugated medium paper (21) comprises: A first arc-shaped support portion (211) and a second arc-shaped support portion (212), wherein a plurality of the first arc-shaped support portions (211) and the second arc-shaped support portions (212) are arranged in an interlaced manner with each other end to end, and the depressions of the first arc-shaped support portions (211) and the second arc-shaped support portions (212) are in opposite directions.

3. The moisture-proof composite paperboard according to claim 1, characterized in that: The reinforcing support member (22) comprises: A triangular support bar (221), wherein the cross section of the triangular support bar (221) is triangular, and the triangular support bar (221) is supported on the inner side of the corrugated core paper (21), and the triangular support bar (221) is hollow; A support tube (222), wherein the support tube (222) is inserted into the interior of the triangular support bar (221), and the support tube (222) is tangent to the inner wall of the triangular support bar (221).

4. The moisture-proof composite paperboard according to claim 3, characterized in that: The reinforcing support member (22) further comprises: A reinforcing rib (223), wherein the reinforcing rib (223) is connected to a corner of the triangular support bar (221), and the other two corners of the triangular support bar (221) are supported on the inner side of the corrugated core paper (21).

5. The moisture-proof composite paperboard according to claim 1, characterized in that: The waterproof composite outer layer (1) comprises: Kraft paper (11), wherein the kraft paper (11) is bonded to the reinforcing core layer (2); A waterproof membrane (12), wherein the waterproof membrane (12) is attached to the outer surface of the kraft paper (11).

6. The moisture-proof composite paperboard according to claim 1, characterized in that: The moisture-proof composite layer (3) comprises: A flame retardant layer (31), wherein the flame retardant layer (31) is bonded to the reinforcing core layer (2); An anti-insect board (32), wherein the anti-insect board (32) is bonded to the surface of the flame retardant layer (31); An activated carbon plate (33) is bonded to the surface of the anti-insect plate (32).

7. The moisture-proof composite paperboard according to claim 6, characterized in that: The flame retardant layer (31) and the activated carbon plate (33) are both filled with a desiccant (34).

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