Moisture-proof composite corrugated board

Abstract

The utility model relates to a moisture-proof composite corrugated board which comprises a first corrugated paper layer, a first core paper layer fixedly connected to one side of the first corrugated paper layer, a second corrugated paper layer fixedly connected to the side, away from the first corrugated paper layer, of the first core paper layer, and an inner paper layer fixedly connected to the side, away from the first core paper layer, of the second corrugated paper layer. And the other side of the first corrugated paper layer is fixedly connected with a honeycomb paper layer. The corrugated board has the beneficial effects that through the first corrugated paper layer and the second corrugated paper layer which are arranged in the transverse and longitudinal staggered manner, the pressure resistance of the corrugated board in different directions tends to be balanced, the defect of insufficient strength in a single direction is overcome, the compressive strength is improved, the local deformation risk is reduced, the stress distribution is improved, and the service life of the corrugated board is prolonged. The impact resistance and the buffering effect are improved through the buffering strips arranged in the first corrugated paper layer and the second corrugated paper layer, and after the honeycomb paper layer is arranged and combined with the corrugated paper board, the pressure resistance in the vertical direction is remarkably improved, and the pressure resistance and the bearing capacity are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to corrugated paperboard technical field, concretely relates to a moistureproof composite corrugated paperboard. BACKGROUND

[0002] Corrugated paper is a board-shaped object bonded by face paper and corrugated paper formed by corrugated roller, generally divided into single corrugated paperboard and double corrugated paperboard, corrugated paperboard is cut, indentation, nail box or stick box to make corrugated paper box, can protect goods, facilitate warehousing and transportation.

[0003] In the prior art, the patent with the patent number CN222275096U discloses a composite moistureproof corrugated paperboard structure, which comprises two outer layer papers, one of which is fixedly provided with corrugated core paper on one side, and the other outer layer paper is provided with a graphene-based sponge layer and a sponge cloth layer for moisture-proof on one side, the graphene-based sponge layer has two layers, the sponge cloth layer is between the two graphene-based sponge layers, and a plurality of separation paper strips are fixedly arranged on both sides of the sponge cloth layer, and one side of the plurality of separation paper strips is fixedly connected with the corresponding side of the graphene-based sponge layer. Although it can prevent moisture on the corrugated paperboard, the corrugated core paper only has one layer, which leads to the corrugated direction of the corrugated core paper being only in one direction, for example, the corrugated direction being in the horizontal direction, which leads to insufficient bending strength and weak compression resistance in the vertical direction, and the compression resistance is not high, and the protection ability of the goods in transportation is insufficient. UTILITY MODEL CONTENT

[0004] In view of the deficiencies of the prior art, the utility model provides a moistureproof composite corrugated paperboard, which can solve the problems of insufficient bending strength, weak compression resistance and low compression resistance of the corrugated paperboard in multiple directions in the prior art.

[0005] The utility model provides the following technical scheme, a moistureproof composite corruggated paperboard, comprising: first corrugated paper layer, first corrugated paper layer one side fixedly connected with first core paper layer, first core paper layer side away from first corrugated paper layer fixedly connected with second corrugated paper layer, second corrugated paper layer side away from first core paper layer fixedly connected with inner paper layer, first corrugated paper layer other side fixedly connected with honeycomb paper layer, honeycomb paper layer side away from first corrugated paper layer fixedly connected with face paper layer, first corrugated paper layer and second corrugated paper layer perpendicular setting of corrugated direction.

[0006] As the preferred scheme of the utility model, a plurality of corrugations in the first corrugated paper layer and the second corrugated paper layer are provided with buffer strips inside, and the buffer strips are arranged along the corrugated length direction of the first corrugated paper layer and the second corrugated paper layer.

[0007] As the preferred scheme of the utility model, the outer wall of the buffer strip is provided with a matching inclined surface along the length direction at the position of the first corrugated paper layer, the second corrugated paper layer, the first core paper layer and the second core paper layer.

[0008] As the preferred scheme of the utility model, the inside of the buffer strip is provided with a cavity along the length direction, and a plurality of avoiding grooves communicated with the cavity are provided at the side of the buffer strip at equal intervals.

[0009] As the preferred scheme of the utility model, the plurality of honeycomb holes of the honeycomb paper layer are provided with reinforcing connecting blocks, the two sides of the reinforcing connecting block are fixedly connected with connecting ears, the side of the honeycomb paper layer is provided with a positioning groove at the position of the connecting ear, the connecting ear of the reinforcing connecting block is clamped into the positioning groove, the reinforcing connecting block is fixedly connected with the honeycomb paper layer by gluing, and the reinforcing connecting block is fixedly connected with the surface paper layer and the second core paper layer by gluing.

[0010] As the preferred scheme of the utility model, the two side surfaces of the reinforcing connecting block are flush with the two side surfaces of the honeycomb paper layer.

[0011] As the preferred scheme of the utility model, the outer surfaces of the inner paper layer and the surface paper layer are coated with a hydrophobic coating.

[0012] As the preferred scheme of the utility model, the outer side of the inner paper layer and the surface paper layer is further fixedly connected with a waterproof film, and the waterproof film covers the hydrophobic coating plate.

[0013] The utility model has the advantages of:

[0014] 1、In the utility model, the first corrugated paper layer and the second corrugated paper layer are arranged transversely and longitudinally, the compression resistance of the corrugated paper board in different directions tends to be balanced, the defect of insufficient strength in a single direction is made up, the compression strength is improved, the local deformation risk is reduced, the stress distribution is improved, the buffer strip arranged in the first corrugated paper layer and the second corruggated paper layer improves the impact resistance and buffering effect, the honeycomb paper layer is arranged, and after being combined with the corrugated paper board, the vertical direction compression resistance is improved obviously, and the compression resistance and the bearing capacity are improved.

[0015] 2、In the utility model, the outer surfaces of the inner paper layer and the surface paper layer are coated with a hydrophobic coating, and the outer side of the inner paper layer and the surface paper layer is further fixedly connected with a waterproof film covering the hydrophobic coating, two waterproof structures are formed by the waterproof film and the hydrophobic coating, even if the waterproof film is damaged, the hydrophobic coating can still delay water penetration through the hydrophobic property. DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the moisture-proof composite corrugated paper board.

[0017] Figure 2 A zone structure amplification schematic in the Figure 1

[0018] Figure 3 Buffer strip structure schematic diagram;

[0019] Figure 4 Honeycomb paper layer structure schematic diagram;

[0020] Figure 5 Reinforced connecting block and honeycomb paper layer split structure schematic diagram;

[0021] In the figure: 1, the first corrugated paper layer; 2, the first core paper layer; 3, the second corrugated paper layer; 4, the inner paper layer; 5, the second core paper layer; 6, the honeycomb paper layer; 601, the positioning groove; 7, the surface paper layer; 8, the buffer strip; 801, the matching slope; 802, the cavity; 803, the avoidance slot; 9, the waterproof film; 10, the reinforced connecting block; 1001, the connecting lug. DETAILED DESCRIPTION

[0022] In order to make the technical problems solved by the utility model, the technical scheme adopted and the technical effects reached more clear, the technical scheme of the embodiments of the utility model will be further described in detail below with reference to the drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0023] Embodiment:

[0024] As Figures 1 to 5 ​As shown, a moisture-proof composite corrugated paperboard comprises: a first corrugated paper layer 1, a first core paper layer 2 is fixedly connected to one side of the first corrugated paper layer 1, a second corrugated paper layer 3 is fixedly connected to the side of the first core paper layer 2 away from the first corrugated paper layer 1, an inner paper layer 4 is fixedly connected to the side of the second corrugated paper layer 3 away from the first core paper layer 2, a honeycomb paper layer 6 is fixedly connected to the other side of the first corrugated paper layer 1, and a surface paper layer 7 is fixedly connected to the side of the honeycomb paper layer 6 away from the first corrugated paper layer 1, wherein the corrugated direction of the first corrugated paper layer 1 is horizontally arranged, and the corrugated direction of the second corrugated paper layer 3 is vertically arranged. Through horizontal and vertical staggered arrangement, the compression resistance of the corrugated paperboard in different directions tends to be balanced, making up for the defect of insufficient strength in a single direction, improving the compression strength, forming a three-dimensional triangular support network through the staggered structure, dispersing external load, avoiding stress concentration in a single direction, reducing the risk of local deformation, improving stress distribution, absorbing impact energy through multi-directional deformation during compression, improving the buffering effect, and through the set honeycomb paper layer 6, the hexagonal honeycomb structure of the honeycomb paperboard has high flat compression strength, and after being combined with the corrugated paperboard, the vertical direction compression resistance is significantly improved, improving the pressure resistance and carrying capacity.

[0025] In this embodiment, as shown in Figure 2 The outer surfaces of the inner paper layer 4 and the surface paper layer 7 are coated with a hydrophobic coating, and the outer sides of the inner paper layer 4 and the surface paper layer 7 are also fixedly connected with a waterproof film 9 covering the hydrophobic coating. The hydrophobic coating can be made of polylactic acid, paraffin, etc., so that the surface of the inner paper layer 4 and the surface paper layer 7 forms a lotus effect, allowing water droplets to slide off rather than penetrate. The waterproof film 9 can be made of polyethylene shower film to form a physical barrier layer, completely isolating water from contacting the paperboard. Through the waterproof film 9 and the hydrophobic coating, a two-layer waterproof structure is formed, so that even if the waterproof film 9 is damaged, the hydrophobic coating can still delay water penetration through its hydrophobic properties.

[0026] In this embodiment, as shown in Figure 2 and Figure 3As shown, the plurality of corrugations in the first corrugated paper layer 1 and the second corrugated paper layer 3 are provided with a buffer strip 8, the buffer strip 8 is arranged along the length direction of the corrugations of the first corrugated paper layer 1 and the second corrugated paper layer 3, and the outer wall of the buffer strip 8 is provided with a matching inclined surface 801 along the length direction at the positions of the first corrugated paper layer 1, the second corrugated paper layer 3, the first core paper layer 2 and the second core paper layer 5. The matching inclined surface 801 of the buffer strip 8 is fixed with the first corrugated paper layer 1, the second corrugated paper layer 3, the first core paper layer 2 and the second core paper layer 5 by adhesion. A cavity 802 is formed in the buffer strip 8 along the length direction. A plurality of avoidance grooves 803 are formed on one side of the buffer strip 8 at equal intervals and communicate with the cavity 802. The buffer strip 8 can be made of rubber material. The buffer strip 8 is filled in the corrugation cavity of the first corrugated paper layer 1 and the second corrugated paper layer 3. The matching inclined surface 801 of the buffer strip 8 can be in large-area contact with the side walls of the first corrugated paper layer 1 and the second corrugated paper layer 3. When the first corrugated paper layer 1 and the second corrugated paper layer 3 are pressed, the buffer strip 8 is extruded, thereby improving the impact resistance and buffering effect.

[0027] In the present embodiment, as shown in Figure 2 and Figure 3 As shown, the plurality of honeycomb holes in the honeycomb paper layer 6 are provided with a reinforcing connecting block 10. The two sides of the reinforcing connecting block 10 are fixedly connected with connecting ears 1001. A positioning groove 601 is formed in the side of the honeycomb paper layer 6 at the position of the connecting ear 1001. The connecting ear 1001 of the reinforcing connecting block 10 is clamped into the positioning groove 601. The reinforcing connecting block 10 is adhesively fixed with the honeycomb paper layer 6. The reinforcing connecting block 10 is adhesively fixed with the face paper layer 7 and the second core paper layer 5. The two side surfaces of the reinforcing connecting block 10 are flush with the two side surfaces of the honeycomb paper layer 6. The reinforcing connecting block 10 is connected in the interior of the honeycomb paper layer 6. The two sides of the reinforcing connecting block 10 can increase the contact area with the face paper layer 7 and the second core paper layer 5, thereby improving the connecting effect of the honeycomb paper layer 6 with the face paper layer 7 and the second core paper layer 5.

[0028] The corrugated paper board is balanced in compression resistance in different directions through the first corrugated paper layer 1 and the second corrugated paper layer 3 arranged in crisscross, compensates for the defect of insufficient strength in a single direction, improves the compression strength, forms a three-dimensional triangular support network through the crisscross structure, disperses external load, avoids stress concentration in a single direction, reduces the risk of local deformation, improves stress distribution, absorbs impact energy through multi-directional deformation in the compression process, improves the buffering effect, and through the buffer strip 8 arranged inside the first corrugated paper layer 1 and the second corrugated paper layer 3, the matching inclined surface 801 of the buffer strip 8 can be in large-area contact with the side wall of the first corrugated paper layer 1 and the second corrugated paper layer 3, and extrude the buffer strip 8 when the first corrugated paper layer 1 and the second corrugated paper layer 3 are compressed, improve the impact resistance and buffering effect, through the arranged honeycomb paper layer 6, the plurality of honeycomb holes of the honeycomb paper layer 6 are connected with the reinforcing connecting block 10, and the two sides of the reinforcing connecting block 10 can increase the contact area with the surface paper layer 7 and the second core paper layer 5, thereby improving the connection effect of the honeycomb paper layer 6 with the surface paper layer 7 and the second core paper layer 5, the hexagonal honeycomb structure of the honeycomb paper board has high flatting strength, and after being combined with the corrugated paper board, the vertical direction compression resistance is significantly improved, the compression resistance and the bearing capacity are improved, through the two waterproof structures formed by the waterproof film 9 and the hydrophobic coating, even if the waterproof film 9 is damaged, the hydrophobic coating can still delay water penetration through the hydrophobic property.

[0029] Although the preferred embodiments of the present application have been described, those skilled in the art who understand the basic inventive concept can make further changes and modifications to the embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments and all changes and modifications falling within the scope of the present application.

[0030] Obviously, those skilled in the art can make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application also intends to include these modifications and variations.

Claims

1. A moisture-proof composite corrugated paperboard, characterized by, The utility model relates to a corrugated paper box, including: The first corrugated paper layer is fixedly connected with the first core paper layer on one side, the first core paper layer is fixedly connected with the second corrugated paper layer on the side away from the first corrugated paper layer, the second corruggated paper layer is fixedly connected with the inner paper layer on the side away from the first core paper layer, the other side of the first corrugated paper layer is fixedly connected with the honeycomb paper layer, the honeycomb paper layer is fixedly connected with the surface paper layer on the side away from the first corrugated paper layer, and the corrugated directions of the first corrugated paper layer and the second corrugated paper layer are perpendicular.

2. The moisture-proof composite corrugated paperboard according to claim 1, characterized in that, A plurality of buffers are arranged in the first corrugated paper layer and the second corrugated paper layer.

3. The moisture-proof composite corrugated paperboard according to claim 2, characterized in that, The outer wall of the buffer is provided with a matching inclined surface along the length direction at the positions of the first corrugated paper layer, the second corrugated paper layer, the first core paper layer and the second core paper layer.

4. The moisture-proof composite corrugated paperboard according to claim 3, characterized in that, A cavity is formed in the buffer along the length direction, and a plurality of avoidance grooves are formed in the buffer on one side and communicated with the cavity.

5. The moisture-proof composite corrugated paperboard according to claim 1, wherein, A plurality of reinforcing connecting blocks are arranged in the plurality of honeycomb holes of the honeycomb paper layer, the two sides of each reinforcing connecting block are fixedly connected with connecting ears, a positioning groove is formed in the honeycomb paper layer on one side at the position of the connecting ear, the connecting ear of the reinforcing connecting block is clamped into the positioning groove in a position-locked mode, the reinforcing connecting block is adhesively fixed with the honeycomb paper layer, and the reinforcing connecting block is adhesively fixed with the surface paper layer and the second core paper layer.

6. The moisture-proof composite corrugated paperboard according to claim 5, wherein, The two side surfaces of the reinforcing connecting block are flush with the two side surfaces of the honeycomb paper layer.

7. The moisture-proof composite corrugated paperboard according to claim 1, wherein, The outer surfaces of the inner paper layer and the surface paper layer are coated with a hydrophobic coating.

8. The moisture-proof composite corrugated paperboard according to claim 7, wherein, The outer side of the inner paper layer and the surface paper layer is further fixedly connected with a waterproof film, and the waterproof film covers the hydrophobic coating.

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