Wave-shaped reinforced five-layer corrugated paperboard

Abstract

The utility model provides a kind of wavy shape reinforcing five-layer corrugated paperboard, it is related to corrugated paperboard technical field.The wavy shape reinforcing five-layer corrugated paperboard, including first face paper, second face paper and third face paper.The wavy shape reinforcing five-layer corrugated paperboard, by being provided with the first core paper and second core paper of staggered arrangement in wave shape structure on second face paper, so that first core paper and second core paper penetrate second face paper and with first face paper and third face paper are bonded, when being distorted, by the staggered arrangement of first core paper and second core paper and the interaction force between second face paper and two, it can be mutually restrained and supported transversely, to ensure that corrugated paperboard is not easy to delaminate or deformation, and by being provided with multiple reinforcing paper tubes in the staggered gap of first core paper and second core paper, when being subjected to vertical pressure, utilize reinforcing paper tube to support vertically, to increase the structural strength of corrugated paperboard whole, it is beneficial to practical application.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard technology, specifically to a corrugated cardboard with wavy reinforcement and five layers. Background Technology

[0002] Corrugated cardboard is a multi-layered composite paperboard material. Its core feature lies in the bonding of the corrugated core paper (corrugated core) and the linerboard (boxboard) together with an adhesive. The linerboard, typically boxboard, serves as the outer layer, providing abrasion resistance and a printable surface. The corrugated core paper, with its corrugated structure (such as U-shape, V-shape, or UV-shape), imparts compression resistance and cushioning to the material. Corrugated cardboard is widely used in cartons and logistics containers, replacing wooden and metal crates.

[0003] However, in the existing technology, the layers of corrugated cardboard are mainly bonded in parallel, lacking lateral mutual restraint and support. When subjected to torsional force, it is easy to delaminate or deform. Furthermore, when subjected to vertical pressure, it mainly relies on the vertical support of the corrugations, and the flute shape is prone to instability. As a result, the overall structural strength of the corrugated cardboard is not ideal, which is not conducive to practical applications.

[0004] Therefore, those skilled in the art provide a corrugated reinforced five-layer corrugated cardboard to solve the problems mentioned in the background art. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model provides a corrugated reinforced five-layer corrugated cardboard, which solves the problems mentioned in the background art where the layers of the existing corrugated cardboard are mainly bonded in parallel, lacking lateral mutual restraint and support. This makes it prone to delamination or deformation when subjected to torsional forces, and when subjected to vertical pressure, it mainly relies on the vertical support of the corrugations, making the corrugations prone to instability, thus resulting in insufficient overall structural strength of the corrugated cardboard.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: a corrugated five-layer corrugated cardboard with a wave-shaped reinforcement, comprising a first face paper, a second face paper, and a third face paper, wherein the second face paper is disposed between the first face paper and the third face paper, and a first core paper and a second core paper with a wave-shaped structure are alternately arranged on the second face paper, wherein both the first core paper and the second core paper penetrate the second face paper, and a first reinforcing paper tube is glued at equal intervals between the first core paper and the second face paper, as well as between the second core paper and the second face paper, by means of glue; a second reinforcing paper tube is glued at equal intervals between the first core paper, the second core paper, and the first face paper by means of glue; and a third reinforcing paper tube is glued at equal intervals between the first core paper, the second core paper, and the third face paper by means of glue.

[0007] Through the above technical solution, a first core paper and a second core paper with an alternating wavy structure are set on the second face paper, so that the first core paper and the second core paper penetrate the second face paper and are bonded to the first face paper and the third face paper. When subjected to torsional force, the alternating arrangement of the first core paper and the second core paper and the interaction force between the second face paper and the two can provide lateral mutual restraint and support, thereby ensuring that the corrugated cardboard is not prone to delamination or deformation. Furthermore, by setting multiple reinforcing paper tubes in the alternating gaps of the first core paper and the second core paper, the reinforcing paper tubes are used for vertical support when subjected to vertical pressure, thereby increasing the overall structural strength of the corrugated cardboard, which is beneficial for practical applications.

[0008] Preferably, the first, second, and third sheets are all made of kraft paper.

[0009] The above technical solutions facilitate the increase of wear resistance.

[0010] Preferably, the high peaks and low troughs of the first core paper and the second core paper are respectively bonded to the corresponding first and third face papers with adhesive.

[0011] The above technical solution facilitates the connection of the first core paper, the second core paper, the first face paper, and the third face paper, thereby increasing the number of bonding points and improving the bonding stability.

[0012] Preferably, the outer side of the second face paper is provided with a first strip groove and a second strip groove at equal intervals, the first core paper passes through the first strip groove, and the second core paper passes through the second strip groove.

[0013] The above technical solution utilizes a first groove to match the first core paper and a second groove to match the second core paper, allowing the first and second core papers to better penetrate the second face paper, forming an alternating structure. This ensures that when subjected to torsional forces, the alternating arrangement of the first and second core papers, along with the interaction between the second face paper and both, provides lateral restraint and support, preventing the corrugated cardboard from delaminating or deforming.

[0014] Preferably, the outer side of the first core paper is provided with a third strip groove that cooperates with the second core paper, and the second core paper passes through the third strip groove.

[0015] Through the above technical solution, the third groove is used in conjunction with the second core paper to enable the first core paper and the second core paper to be better arranged in an alternating manner to form a staggered support.

[0016] Preferably, the first, second, and third reinforcing paper tubes each have three reinforcing plates installed at equal intervals inside.

[0017] By utilizing the above technical solution and the reinforcing plate, multiple fan-shaped structures can be formed inside the first, second, and third reinforcing paper tubes, thereby increasing the overall structural strength of the first, second, and third reinforcing paper tubes.

[0018] This utility model provides a corrugated reinforced five-layer corrugated cardboard with the following beneficial effects: This corrugated reinforced five-layer corrugated cardboard features a first and second core paper arranged in an alternating wavy structure on the second face paper. These core papers penetrate the second face paper and are bonded to both the first and third face papers. Under torsional forces, the alternating arrangement of the first and second core papers, along with the interaction between the second face paper and the two core papers, provides lateral restraint and support, preventing delamination or deformation. Furthermore, multiple reinforcing paper tubes are placed in the gaps between the first and second core papers, providing vertical support under vertical pressure, thus increasing the overall structural strength of the corrugated cardboard and improving its practical applications. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0020] Figure 2 This is a schematic diagram of the disassembled structure of this utility model.

[0021] Figure 3 This is a schematic diagram of the structure of the second sheet, the first core sheet, and the second core sheet of this utility model.

[0022] Figure 4 This is a schematic diagram of the structure of the second paper side of this utility model.

[0023] Figure 5 This is a schematic diagram of the structure of the first core paper and the second core paper of this utility model.

[0024] Figure 6 This is a schematic diagram showing the combination of the first core paper and the second core paper of this utility model.

[0025] In the diagram: 1. First face paper; 2. Second face paper; 3. Third face paper; 4. First core paper; 5. Second core paper; 6. First reinforcing paper tube; 7. Second reinforcing paper tube; 8. Third reinforcing paper tube; 9. First groove; 10. Second groove; 11. Third groove; 12. Reinforcing plate. Detailed Implementation

[0026] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0027] Reference Figure 1 and Figure 2 This utility model provides a corrugated five-layer reinforced corrugated cardboard, including a first face paper 1, a second face paper 2, and a third face paper 3, with the second face paper 2 disposed between the first face paper 1 and the third face paper 3. The first face paper 1, the second face paper 2, and the third face paper 3 are all made of kraft paper to increase abrasion resistance.

[0028] Reference Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6 In one aspect of this embodiment, the second face paper 2 is provided with staggered, wavy first core paper 4 and second core paper 5, forming a five-layer structure consisting of the first face paper 1, second face paper 2, third face paper 3, first core paper 4, and second core paper 5. The high peaks and low troughs of the first core paper 4 and second core paper 5 are respectively bonded to the corresponding first face paper 1 and third face paper 3 with adhesive, facilitating the connection of the first core paper 4, second core paper 5, first face paper 1, and third face paper 3, thereby increasing the number of bonding points and improving bonding stability. Both the first core paper 4 and second core paper 5 penetrate the second face paper 2. The outer side of the second face paper 2 is provided with equidistant first grooves 9 and second grooves 10. The first core paper 4 penetrates the first groove 9, and the second core paper 5 penetrates the second groove 10. The first groove 9 matches the first core paper 4, and the second groove 10 matches the second core paper 5, allowing the first core paper 4 and second core paper 5 to better penetrate the second face paper 2, forming a staggered structure. This allows for lateral mutual restraint and support when subjected to torsional forces, through the staggered arrangement of the first core paper 4 and the second core paper 5, as well as the interaction force between the second face paper 2 and the two, thus ensuring that the corrugated cardboard is not prone to delamination or deformation. The outer side of the first core paper 4 has equidistant third grooves 11 that cooperate with the second core paper 5. The second core paper 5 passes through the third grooves 11. The cooperation of the third grooves 11 with the second core paper 5 allows for a better staggered arrangement between the first core paper 4 and the second core paper 5, forming a staggered support.

[0029] Reference Figure 2In one aspect of this embodiment, first reinforcing paper tubes 6 are glued equidistantly between the first core paper 4 and the second face paper 2, and between the second core paper 5 and the second face paper 2. Second reinforcing paper tubes 7 are glued equidistantly between the first core paper 4, the second core paper 5, and the first face paper 1. Third reinforcing paper tubes 8 are glued equidistantly between the first core paper 4, the second core paper 5, and the third face paper 3. The first reinforcing paper tubes 6, 7, and 8 provide vertical support for the corrugated cardboard under vertical pressure, thereby increasing the overall structural strength of the corrugated cardboard and benefiting practical applications. Three reinforcing plates 12 are equidistantly installed inside each of the first, second, and third reinforcing paper tubes 6 and 7. These reinforcing plates 12 form multiple fan-shaped structures inside the tubes, further increasing their overall structural strength.

[0030] Working principle: In use, the first groove 9 is used to match the first core paper 4, and the second groove 10 is used to match the second core paper 5. This allows the first core paper 4 and the second core paper 5 to better penetrate the second face paper 2, forming an interlaced structure. Therefore, when subjected to torsional forces, the interlacing of the first core paper 4 and the second core paper 5, along with the interaction force between the second face paper 2 and the two, provides lateral mutual restraint and support, ensuring that the corrugated cardboard is not prone to delamination or deformation.

[0031] Simultaneously, by utilizing the reinforcing plate 12, multiple fan-shaped structures can be formed inside the first reinforcing paper tube 6, the second reinforcing paper tube 7, and the third reinforcing paper tube 8, thereby increasing the overall structural strength of the first reinforcing paper tube 6, the second reinforcing paper tube 7, and the third reinforcing paper tube 8. Furthermore, by utilizing the first reinforcing paper tube 6, the second reinforcing paper tube 7, and the third reinforcing paper tube 8, the corrugated cardboard can be vertically supported under vertical pressure, thus increasing the overall structural strength of the corrugated cardboard and benefiting practical applications.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A corrugated five-layer reinforced corrugated cardboard, comprising a first face sheet (1), a second face sheet (2), and a third face sheet (3), wherein the second face sheet (2) is disposed between the first face sheet (1) and the third face sheet (3), characterized in that, The second face paper (2) is provided with a first core paper (4) and a second core paper (5) arranged in a wavy structure. The first core paper (4) and the second core paper (5) both penetrate the second face paper (2). The first core paper (4) and the second face paper (2) and the second core paper (5) and the second face paper (2) are bonded together at equal intervals by glue. The first core paper (4), the second core paper (5) and the first face paper (1) are bonded together at equal intervals by glue. The first core paper (4), the second core paper (5) and the first face paper (1) are bonded together at equal intervals by glue. The first core paper (4), the second core paper (5) and the third face paper (3) are bonded together at equal intervals by glue. The third reinforcing paper (8) is bonded together at equal intervals by glue.

2. The corrugated reinforced five-layer corrugated cardboard according to claim 1, characterized in that: The first sheet (1), the second sheet (2) and the third sheet (3) are all made of kraft paper.

3. The corrugated reinforced five-layer corrugated cardboard according to claim 1, characterized in that: The high peaks and low troughs of the first core paper (4) and the second core paper (5) are respectively bonded to the corresponding first face paper (1) and third face paper (3) by adhesive.

4. The corrugated reinforced five-layer corrugated cardboard according to claim 1, characterized in that: The second face paper (2) has a first groove (9) and a second groove (10) equidistantly spaced on its outer side. The first core paper (4) passes through the first groove (9), and the second core paper (5) passes through the second groove (10).

5. The corrugated reinforced five-layer corrugated cardboard according to claim 1, characterized in that: The outer side of the first core paper (4) is provided with a third groove (11) that works in conjunction with the second core paper (5), and the second core paper (5) passes through the third groove (11).

6. The corrugated reinforced five-layer corrugated cardboard according to claim 1, characterized in that: The first reinforcing paper tube (6), the second reinforcing paper tube (7) and the third reinforcing paper tube (8) are each equipped with three reinforcing plates (12) at equal intervals inside.

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