High-hardness multi-layer composite corrugated board

Abstract

The utility model discloses a high-hardness multi-layer composite corrugated paperboard which comprises a paperboard main body, the paperboard main body is composed of an upper-layer board and a lower-layer board, a supporting interlayer is arranged between the upper-layer board and the lower-layer board, a wear-resistant waterproof layer is arranged at the top of the upper-layer board, a reinforcing layer is arranged in the lower-layer board, and the upper-layer board and the lower-layer board are made of plastic. Compared with an existing composite corrugated board, the composite corrugated board has the advantages that the compression resistance, the bending resistance and the structural strength of the corrugated board can be enhanced through the design, certain waterproofness and abrasion resistance of the corrugated board are provided, and the overall practicability is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paperboards, in particular to a high-hardness multi-layer composite corrugated paperboard. Background Art

[0002] Corrugated paperboard is a multi-layer adhesive body, which consists of at least one layer of corrugated core paper and one layer of paperboard. It has high mechanical strength and can withstand collisions and falls during transportation. Corrugated paper is a common paper product in people's lives. It is mostly used to make corrugated paper boxes. Especially in today's rapidly developing express delivery industry, the entire industry has an increasing demand for corrugated paper boxes.

[0003] Existing corrugated paper is mostly made from recycled waste paper as raw materials, and its compression resistance and strength are poor. When this type of corrugated paper is used to make corrugated paper boxes, the corrugated paper boxes will have the disadvantages of low compression resistance and poor strength. In addition, the corrugated paperboard is not waterproof and is easily softened and damaged when exposed to water.

[0004] Therefore, it is particularly important to design a high-hardness multi-layer composite corrugated paperboard to solve the above-mentioned defects. Utility Model Content

[0005] In view of the shortcomings of the existing technology, the utility model designs a high-hardness multi-layer composite corrugated cardboard, which aims to solve the technical problems of low compression resistance, poor strength, lack of waterproofness, and easy softening and damage when exposed to water in the existing technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A high-hardness multi-layer composite corrugated paperboard comprises a paperboard body, wherein the paperboard body is composed of an upper plate and a lower plate, a supporting interlayer is arranged between the upper plate and the lower plate, a wear-resistant and waterproof layer is arranged on the top of the upper plate, a reinforcing layer is arranged inside the lower plate, and a drying layer is arranged inside the lower plate below the reinforcing layer.

[0008] As a preferred solution of the utility model, a transverse corrugated paper core sandwich is provided inside the upper plate.

[0009] By adopting the above technical solution, the corrugated paper core interlayer enhances the compression, bending and tensile properties of the upper board, and improves the resistance of the paperboard body to external forces such as extrusion, collision and vibration.

[0010] As a preferred solution of the utility model, the supporting interlayer is composed of transverse support bars and longitudinal support bars, a plurality of groups of transverse support bars are fixedly connected to the top of the lower plate, a plurality of groups of longitudinal support bars are fixedly connected to the bottom of the upper plate, and plug-in grooves are provided at positions corresponding to the transverse support bars and the longitudinal support bars.

[0011] As a preferred solution of the utility model, the insertion groove is used for the longitudinal support bar and the transverse support bar to be aligned and connected, and the longitudinal support bar and the transverse support bar are bonded and fixed by a glue layer.

[0012] By adopting the above technical solution, the longitudinal support strips and the transverse support strips are aligned and connected through the plug-in grooves, and the longitudinal support strips and the transverse support strips are bonded and fixed with a glue layer, thereby enhancing the overall hardness and structural strength of the corrugated cardboard.

[0013] As a preferred solution of the utility model, the wear-resistant waterproof layer is composed of a waterproof coating and a wear-resistant layer, the top of the upper plate is provided with a waterproof coating, and the top of the waterproof coating is covered with a wear-resistant layer.

[0014] By adopting the above technical solution, the wear-resistant layer improves the wear resistance of the surface of the corrugated cardboard, and the waterproof coating improves the waterproofness of the corrugated cardboard, thereby preventing the corrugated cardboard from softening and being damaged when it comes into contact with water.

[0015] As a preferred solution of the utility model, the reinforcing layer is designed as a honeycomb paperboard structure, and the reinforcing layer is made of hard paperboard.

[0016] By adopting the above technical solution, the reinforcement layer of the honeycomb board structure further enhances the compression resistance and structural strength of the corrugated paperboard while reducing the weight of the corrugated paperboard.

[0017] As a preferred solution of the utility model, the drying layer is made of a plate-shaped desiccant material, and a breathable layer is provided at the bottom of the lower plate below the drying layer.

[0018] By adopting the above technical solution, after the corrugated paperboard is made into a carton, the drying layer composed of the plate-shaped desiccant dehumidifies and reduces moisture in the air inside the carton through the breathable layer.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] First, the longitudinal support strips and the transverse support strips are aligned and connected through the plug-in slots, and the longitudinal support strips and the transverse support strips are bonded and fixed with a glue layer to enhance the overall hardness and structural strength of the corrugated cardboard. The transverse corrugated paper core interlayer enhances the compression, bending, and tensile properties of the upper board, and improves the cardboard body's resistance to external forces such as extrusion, collision, and vibration. The reinforcement layer of the honeycomb board structure enhances the compression resistance and structural strength of the corrugated cardboard while reducing the weight of the corrugated cardboard.

[0021] Secondly, the wear-resistant layer improves the wear resistance of the surface of the corrugated cardboard, and the waterproof coating improves the waterproofness of the corrugated cardboard to prevent the corrugated cardboard from softening and being damaged by water;

[0022] Finally, after the corrugated cardboard is made into a carton, the drying layer composed of the plate-shaped desiccant dehumidifies and reduces moisture in the air inside the carton through the breathable layer, thereby enhancing the functionality of the corrugated cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall three-dimensional structure of a high-hardness multi-layer composite corrugated paperboard;

[0024] Figure 2 Schematic diagram of the bottom structure of the upper plate;

[0025] Figure 3 It is a schematic diagram of the top structure of the lower plate;

[0026] Figure 4 for Figure 1 A schematic diagram of the enlarged structure of the middle A area;

[0027] Figure 5 for Figure 3 Schematic diagram of the enlarged structure of area B in the middle.

[0028] In the figure: 1. cardboard body; 101. upper board; 1011. transverse corrugated paper core interlayer; 102. lower board; 2. supporting interlayer; 201. transverse supporting strip; 2011. plug-in slot; 202. longitudinal supporting strip; 3. wear-resistant and waterproof layer; 301. waterproof coating; 302. wear-resistant layer; 4. reinforcing layer; 5. drying layer; 501. breathable layer. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Example

[0030] The utility model provides a high-hardness multi-layer composite corrugated paperboard, which aims to solve the technical problems of low compression resistance, poor strength, lack of waterproofness, and easy softening and damage when exposed to water in the prior art.

[0031] See also Figure 1-Figure 5 , the utility model provides a technical solution:

[0032] A high-hardness multi-layer composite corrugated paperboard comprises a paperboard body 1, wherein the paperboard body 1 is composed of an upper plate 101 and a lower plate 102, wherein a transverse corrugated paper core interlayer 1011 is arranged inside the upper plate 101, and the transverse corrugated paper core interlayer 1011 enhances the compression, bending and tensile properties of the upper plate 101, and improves the resistance of the paperboard body 1 to external forces such as extrusion, collision and vibration.

[0033] Among them, see Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 A supporting interlayer 2 is provided between the upper plate 101 and the lower plate 102, and the supporting interlayer 2 is composed of a transverse supporting strip 201 and a longitudinal supporting strip 202. A plurality of transverse supporting strips 201 are fixedly connected to the top of the lower plate 102, and a plurality of longitudinal supporting strips 202 are fixedly connected to the bottom of the upper plate 101. Insertion grooves 2011 are provided at positions corresponding to the transverse supporting strips 201 and the longitudinal supporting strips 202, and the insertion grooves 2011 are used for the longitudinal supporting strips 202 to be aligned and connected with the transverse supporting strips 201. The longitudinal supporting strips 202 and the transverse supporting strips 201 are bonded and fixed by a glue layer, so as to enhance the overall hardness and structural strength of the paperboard body 1.

[0034] For further information, see Figure 1 , Figure 2 and Figure 4 A wear-resistant waterproof layer 3 is provided on the top of the upper plate 101, and the wear-resistant waterproof layer 3 is composed of a waterproof coating 301 and a wear-resistant layer 302. A waterproof coating 301 is provided on the top of the upper plate 101, and the top of the waterproof coating 301 is covered with a wear-resistant layer 302. The wear-resistant layer 302 improves the wear resistance of the surface of the cardboard body 1, and the waterproof coating 301 improves the waterproofness of the cardboard body 1 to prevent the cardboard body 1 from softening and being damaged when it encounters water.

[0035] For further information, see Figure 1 , Figure 3 , Figure 4 and Figure 5 A reinforcing layer 4 is provided inside the lower plate 102. The reinforcing layer 4 is designed as a honeycomb paperboard structure and is made of hard paperboard. The reinforcing layer 4 of the honeycomb paperboard structure enhances the compression resistance and structural strength of the paperboard body 1 while reducing the weight of the paperboard body 1.

[0036] For further information, see Figure 1 , Figure 3 , Figure 4 and Figure 5A drying layer 5 is provided inside the lower plate 102 below the reinforcing layer 4. The drying layer 5 is made of a plate-like desiccant material. A breathable layer 501 is provided at the bottom of the lower plate 102 below the drying layer 5. After the paperboard body 1 is made into a carton, the drying layer 5 made of a plate-like desiccant material dehumidifies and reduces moisture inside the carton through the breathable layer 501.

[0037] In addition, it should be added based on the above embodiments that the wear-resistant layer 302, the waterproof coating 301 and the plate-shaped desiccant are all existing technologies, and their internal working principles and operating procedures will not be described in detail here.

[0038] The working process of the utility model is as follows: first, after the cardboard body 1 is made into a carton, the wear-resistant layer 302 improves the wear resistance of the carton surface, the waterproof coating 301 improves the waterproofness of the carton, and prevents the cardboard body 1 from softening and being damaged when it comes into contact with water. The transverse corrugated paper core interlayer 1011 enhances the compression, bending, and tensile properties of the upper plate 101, and improves the carton's resistance to external forces such as extrusion, collision, and vibration. The plug-in groove 201 allows the longitudinal support bar 202 to be aligned with the transverse support bar 201, and the longitudinal support bar 202 and the transverse support bar 201 are bonded and fixed by a glue layer, thereby enhancing the overall hardness and structural strength of the cardboard body 1. The reinforcing layer 4 of the honeycomb cardboard structure enhances the compression resistance and structural strength of the cardboard body 1 while reducing the weight of the cardboard body 1. The drying layer 5 of the plate-like desiccant material dehumidifies and reduces moisture in the air inside the carton through the breathable layer 501.

[0039] The entire operation process is simple and convenient. Compared with the existing composite corrugated cardboard, the utility model can enhance the compression resistance, bending resistance and structural strength of the corrugated cardboard through design, provide the corrugated cardboard with certain waterproofness and wear resistance, and enhance the overall practicality.

[0040] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-hardness multi-layer composite corrugated paperboard, comprising a paperboard body (1), characterized in that: The paperboard body (1) is composed of an upper plate (101) and a lower plate (102); a supporting interlayer (2) is provided between the upper plate (101) and the lower plate (102); a wear-resistant and waterproof layer (3) is provided on the top of the upper plate (101); a reinforcing layer (4) is provided inside the lower plate (102); and a drying layer (5) is provided inside the lower plate (102) and below the reinforcing layer (4).

2. The high-hardness multi-layer composite corrugated paperboard according to claim 1, characterized in that: A transverse corrugated paper core sandwich (1011) is provided inside the upper plate (101).

3. The high-hardness multi-layer composite corrugated paperboard according to claim 1, characterized in that: The supporting interlayer (2) is composed of transverse supporting bars (201) and longitudinal supporting bars (202); a plurality of groups of transverse supporting bars (201) are fixedly connected to the top of the lower plate (102); a plurality of groups of longitudinal supporting bars (202) are fixedly connected to the bottom of the upper plate (101); and plug-in grooves (2011) are provided at positions corresponding to the transverse supporting bars (201) and the longitudinal supporting bars (202).

4. The high-hardness multi-layer composite corrugated paperboard according to claim 3, characterized in that: The plug-in groove (2011) is used for the longitudinal support bar (202) and the transverse support bar (201) to be aligned and connected, and the longitudinal support bar (202) and the transverse support bar (201) are bonded and fixed by a glue layer.

5. The high-hardness multi-layer composite corrugated paperboard according to claim 1, characterized in that: The wear-resistant waterproof layer (3) is composed of a waterproof coating (301) and a wear-resistant layer (302); the waterproof coating (301) is provided on the top of the upper plate (101), and the top of the waterproof coating (301) is covered with the wear-resistant layer (302).

6. The high-hardness multi-layer composite corrugated paperboard according to claim 1, characterized in that: The reinforcing layer (4) is designed as a honeycomb paperboard structure, and the reinforcing layer (4) is made of hard paperboard.

7. The high-hardness multi-layer composite corrugated paperboard according to claim 1, characterized in that: The drying layer (5) is made of a plate-shaped desiccant material, and a breathable layer (501) is provided at the bottom of the lower plate (102) located below the drying layer (5).

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