High-strength ultrathin double-E corrugated board

Abstract

The utility model relates to the technical field of corrugated boards, and discloses a high-strength ultrathin double-E corrugated board which comprises a core paper layer, corrugated paper adheres to the top and the bottom of the core paper layer, a buffer layer is arranged on the side, away from the core paper layer, of the corrugated paper, the buffer layer comprises a shell and two sets of elastic pieces, and the elastic pieces are arranged in the shell. The high-strength ultra-thin double-E corrugated board comprises two sets of elastic pieces, the two sets of elastic pieces are arranged on the outer side of the shell and are crossed, the two sets of elastic pieces are fixed to each other, one ends of the two sets of elastic pieces are fixed to the inner side of the shell, the other ends of the two sets of elastic pieces abut against the inner side of the shell, the shell is in a U shape, and the number of the shells is two. According to the corrugated board, the two groups of elastic pieces are arranged, so that the overall strength of the corrugated board can be enhanced, meanwhile, when the corrugated board is extruded, the two groups of elastic pieces deform to play a certain buffering role, and when the corrugated board is not stressed any more, the elastic pieces reset under the self-elasticity effect, so that the overall shock resistance of the corrugated board is improved, and the corrugated board is prevented from being damaged.

Description

Technical Field

[0001] The utility model relates to the technical field of corrugated paperboards, in particular to a high-strength ultra-thin double E corrugated paperboard. Background Art

[0002] Corrugated cardboard, also known as corrugated cardboard, is made of at least one layer of corrugated paper and one layer of boxboard (also called boxboard) bonded together. It has good elasticity and extensibility and is mainly used to make cartons, cardboard sandwiches and other packaging materials for fragile goods. It mainly uses local straw pulp and waste paper through pulping to make raw cardboard similar to yellow cardboard, which is then machined and rolled into a corrugated shape, and then bonded to the boxboard with adhesives such as sodium silicate on its surface. The corrugated waves of the corrugated cardboard are like connected arched doors, arranged in a row and supporting each other to form a triangular structure. It has good mechanical strength, can withstand a certain amount of pressure on the plane, and is elastic and has a good cushioning effect. It can be made into pads or containers of various shapes and sizes as needed, which is simpler and faster than plastic cushioning materials. It is less affected by temperature, has good light-shielding properties, does not deteriorate under light, and is generally less affected by humidity, but it is not suitable for long-term use in an environment with high humidity, which will affect its strength.

[0003] The strength of the corrugated cardboard currently used is relatively poor. When it is made into a carton and is used, if heavy objects are placed inside and it is hit, the corrugated cardboard is easily deformed and damaged, affecting its normal use. For this reason, we propose a high-strength ultra-thin double E corrugated cardboard. Summary of the invention

[0004] The utility model aims to provide a high-strength ultra-thin double E corrugated paperboard to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above object, the utility model provides the following technical solution: a high-strength ultra-thin double E corrugated paperboard, comprising a core paper layer, the top and bottom of the core paper layer are bonded with corrugated paper, and a buffer layer is arranged on the side of the corrugated paper away from the core paper layer, and the buffer layer comprises:

[0006] A shell body, wherein the shell body is bonded to a side of the corrugated paper away from the core paper layer;

[0007] Shrapnel, a shrapnel is arranged on the inner side of the shell, and the shell is a cardboard coated with carbon fiber, which can enhance the overall strength of the corrugated cardboard while ensuring its thickness, achieving an ultra-thin effect.

[0008] Preferably, the spring sheets are provided in two groups, and the two groups of spring sheets are in a cross shape, the two groups of spring sheets are fixed to each other, one end of the two groups of spring sheets is fixed to the inner side of the shell, and the other end of the two groups of spring sheets is in contact with the inner side of the shell. When the corrugated cardboard is squeezed, the two groups of spring sheets are deformed to provide a certain buffer. When no longer subjected to force, the spring sheets are reset under the action of their own elasticity, thereby improving the overall impact resistance of the corrugated cardboard.

[0009] Preferably, the shell is U-shaped, and two groups of the shell are provided. The two groups of the shell are symmetrically arranged. When the corrugated cardboard is squeezed, the two groups of shells are close to each other to squeeze the spring piece.

[0010] Preferably, one group of the shells is bonded to the side of the corrugated paper away from the core paper layer, and the other group of the shells is coated with a waterproof layer on the side away from the spring sheet. The waterproof layer is a polyurethane coating, which can make the corrugated paperboard have good waterproof performance and increase the strength and durability of the corrugated paperboard.

[0011] Preferably, the two groups of shells are penetrated by a connecting column and are slidably connected to the connecting column. Through the friction between the connecting column and the two groups of shells, the elastic sheet is squeezed and deformed, thereby playing a good buffering role.

[0012] Preferably, the buffer layer, the waterproof layer and the connecting column are each provided in two groups, and the two groups of buffer layers, waterproof layers and connecting columns are symmetrically arranged with the transverse center line of the core paper layer as the symmetry axis.

[0013] Compared with the prior art, the utility model provides a high-strength ultra-thin double E corrugated paperboard, which has the following beneficial effects:

[0014] 1. The high-strength ultra-thin double E corrugated cardboard can enhance the overall strength of the corrugated cardboard by setting a buffer layer. At the same time, when the corrugated cardboard is squeezed, the two groups of springs are deformed to provide a certain buffer. When no longer under stress, the springs are reset under their own elasticity, thereby improving the overall impact resistance of the corrugated cardboard and avoiding damage to the corrugated cardboard.

[0015] 2. The high-strength ultra-thin double E corrugated paperboard can have good waterproof performance and increase the strength and durability of the corrugated paperboard by coating a waterproof layer on the surface of the shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the front view structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the buffer layer structure of the utility model.

[0018] In the figure: 1. core paper layer; 2. corrugated paper; 3. buffer layer; 31. shell; 32. spring; 4. waterproof layer; 5. connecting column. DETAILED DESCRIPTION

[0019] like Figure 1-Figure 2 As shown, the utility model provides a technical solution: a high-strength ultra-thin double E corrugated paperboard, including a core paper layer 1, the top and bottom of the core paper layer 1 are bonded with corrugated paper 2, and a buffer layer 3 is arranged on the side of the corrugated paper 2 away from the core paper layer 1, and the buffer layer 3 includes: a shell 31 and a spring 32.

[0020] The shell 31 is bonded to the side of the corrugated paper 2 away from the core paper layer 1. A spring piece 32 is arranged inside the shell 31. The shell 31 is a paperboard coated with carbon fiber, which can enhance the overall strength of the corrugated paperboard while ensuring its thickness, achieving an ultra-thin effect.

[0021] Two groups of spring sheets 32 are provided, and the two groups of spring sheets 32 are in a cross shape. The two groups of spring sheets 32 are fixed to each other, one end of the two groups of spring sheets 32 is fixed to the inner side of the shell 31, and the other end of the two groups of spring sheets 32 contacts the inner side of the shell 31. When the corrugated cardboard is squeezed, the two groups of spring sheets 32 are deformed to play a certain role in buffering. When no longer under force, the spring sheets 32 are reset under the action of their own elasticity, thereby improving the overall impact resistance of the corrugated cardboard.

[0022] The shell 31 is U-shaped. There are two groups of shells 31 , and the two groups of shells 31 are symmetrically arranged. When the corrugated cardboard is squeezed, the two groups of shells 31 approach each other to squeeze the spring piece 32 .

[0023] One group of shells 31 is bonded to the side of the corrugated paper 2 away from the core paper layer 1, and the other group of shells 31 is coated with a waterproof layer 4 on the side away from the spring sheet 32. The waterproof layer 4 is a polyurethane coating, which can make the corrugated paperboard have good waterproof performance and increase the strength and durability of the corrugated paperboard. The two groups of shells 31 are penetrated by the connecting column 5 and are slidably connected to the connecting column 5. Through the friction between the connecting column 5 and the two groups of shells 31, the spring sheet 32 ​​is squeezed and deformed, thereby playing a good buffering role.

[0024] The buffer layer 3 , the waterproof layer 4 and the connecting column 5 are each provided in two groups, and the two groups of the buffer layer 3 , the waterproof layer 4 and the connecting column 5 are symmetrically arranged with the transverse center line of the core paper layer 1 as the symmetry axis.

[0025] The above generally describes the present invention in detail, but it is obvious to a person skilled in the art that some modifications or improvements can be made to the present invention. Therefore, modifications or improvements that do not depart from the spirit of the present invention are within the scope of protection of the present invention.

Claims

1. A high-strength ultra-thin double E corrugated paperboard, comprising a core paper layer (1), characterized in that: The top and bottom of the core paper layer (1) are both bonded with corrugated paper (2), and a buffer layer (3) is provided on the side of the corrugated paper (2) away from the core paper layer (1), wherein the buffer layer (3) comprises: A shell (31), wherein the shell (31) is bonded to a side of the corrugated paper (2) away from the core paper layer (1); The shell (31) is provided with a spring piece (32) on the inner side thereof. The shell (31) is made of a paperboard coated with carbon fibers, which can enhance the overall strength of the corrugated paperboard while ensuring its thickness, achieving an ultra-thin effect.

2. The high-strength ultra-thin double E corrugated paperboard according to claim 1, characterized in that: The spring sheets (32) are provided in two groups, and the two groups of spring sheets (32) are in a cross shape. The two groups of spring sheets (32) are fixed to each other, one end of the two groups of spring sheets (32) is fixed to the inner side of the shell (31), and the other end of the two groups of spring sheets (32) contacts the inner side of the shell (31). When the corrugated paperboard is squeezed, the two groups of spring sheets (32) are deformed to provide a certain buffer. When no longer subjected to force, the spring sheets (32) are reset under the action of their own elasticity, thereby improving the overall impact resistance of the corrugated paperboard.

3. The high-strength ultra-thin double E corrugated paperboard according to claim 1, characterized in that: The shell (31) is U-shaped, and two groups of the shell (31) are provided. The two groups of the shell (31) are symmetrically arranged, and when the corrugated cardboard is compressed, the two groups of the shell (31) are close to each other to compress the spring sheet (32).

4. The high-strength ultra-thin double E corrugated paperboard according to claim 3, characterized in that: One group of the shells (31) is bonded to a side of the corrugated paper (2) away from the core paper layer (1), and another group of the shells (31) is coated with a waterproof layer (4) on a side away from the spring sheet (32). The waterproof layer (4) is a polyurethane coating, which can make the corrugated paperboard have good waterproof performance and increase the strength and durability of the corrugated paperboard.

5. The high-strength ultra-thin double E corrugated paperboard according to claim 4, characterized in that: The two groups of shells (31) are penetrated by a connecting column (5) and are slidably connected to the connecting column (5). The friction between the connecting column (5) and the two groups of shells (31) causes the elastic sheet (32) to be squeezed and deformed, thereby achieving a good buffering effect.

6. The high-strength ultra-thin double E corrugated paperboard according to claim 5, characterized in that: The buffer layer (3), the waterproof layer (4) and the connecting column (5) are each provided in two groups, and the two groups of buffer layers (3), the waterproof layer (4) and the connecting column (5) are both symmetrically arranged with the transverse center line of the core paper layer (1) as the symmetry axis.

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