Multi-layer elastic corrugated board

Abstract

The utility model discloses a multi-layer elastic corrugated board which comprises two supporting layers, the two supporting layers are symmetrically arranged up and down, and each supporting layer comprises an outer-layer paper board, an inner-layer paper board and a supporting ridge located between the outer-layer paper board and the inner-layer paper board; the utility model relates to an elastic cushion, which comprises two supporting layers and an elastic layer, the elastic layer is arranged between the two supporting layers, the elastic layer comprises a connecting ridge with a wave-shaped structure, and buffering pieces and buffering pipes are arranged on the outer side of the connecting ridge along the wave-shaped structure in a staggered mode. The overall elasticity and impact resistance are improved; the buffering piece and the buffering pipe are made of paper or plastic materials with good elasticity and serve as buffering and elastic components, the impact resistance and elasticity of the paperboard are further improved, and the packaging material can bear larger pressure and cannot be damaged; the sunscreen layer is arranged on the outer side of the outer-layer paperboard and used for preventing potential damage, such as color fading or material degeneration, caused by direct sunlight to internal articles.

Description

Technical Field

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

[0002] Corrugated cardboard is a structural material consisting of a corrugated cardboard core sandwiched between two layers of kraft paper or kraft paper and cardboard. It is commonly used for packaging, transportation and protection of items because it is lightweight, strong and durable. The structure of corrugated cardboard enables it to withstand pressure and maintain its shape while reducing the overall weight. There are many different types of corrugated cardboard, and different corrugated cardboards can be selected as needed to meet specific packaging requirements. Existing corrugated cardboard is very easy to deform when it is hit. Its impact resistance and elasticity make it impossible for the packaging material to withstand greater pressure and break, affecting the subsequent use of the corrugated cardboard and reducing the practicality and service life of the corrugated cardboard. Utility Model Content

[0003] The purpose of the utility model is to provide a multi-layer elastic corrugated paperboard to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical solution: a multi-layer elastic corrugated paperboard, comprising:

[0005] Two supporting layers, the two supporting layers are symmetrically arranged up and down, each of the supporting layers comprises an outer paperboard layer and an inner paperboard layer and supporting flutes located therebetween;

[0006] An elastic layer, the elastic layer is placed between the two supporting layers, the elastic layer comprises connecting ridges of a corrugated structure, and buffer members and buffer tubes are alternately arranged along the corrugated structure on the outer side of the connecting ridges;

[0007] A sun protection layer is arranged on the outside of the outer paperboard.

[0008] Preferably, the supporting ribs are of a wavy structure, and two side edges of the supporting ribs are perpendicular to the outer paperboard layer and the inner paperboard layer.

[0009] Preferably, the connecting flutes and the buffer tubes are both fixedly connected between two inner paperboard layers.

[0010] Preferably, the buffer tube is a diamond-shaped structure.

[0011] Preferably, the buffer is made by stacking and fixing two elliptical pipes.

[0012] Preferably, a reinforcement layer is provided on the outer side of the outer paperboard, and the sun protection layer is located on the outer side of the reinforcement layer.

[0013] Preferably, the reinforcing layer is a polymer coating, and the sunscreen layer is a phenolic compound coating.

[0014] Compared with the prior art, the beneficial effects of the utility model are as follows: by setting a symmetrical layout of the support layers up and down, it can be ensured that the cardboard provides uniform support and protection on both sides; the elastic layer connects the two support layers through the wavy connecting ribs, thereby improving the overall elasticity and impact resistance; the buffer member and the buffer tube are made of paper or plastic materials with good elasticity, and as buffer and elastic components, further improve the impact resistance and elasticity of the cardboard, so that the packaging material can withstand greater pressure without being damaged; the sun protection layer is arranged on the outside of the outer cardboard to prevent potential damage to the internal items caused by direct sunlight, such as color fading or material degradation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the support rib of the utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the buffer tube of the utility model;

[0018] Figure 4 This is an enlarged view of point A of the utility model;

[0019] Figure 5 It is an enlarged view of point B of the present utility model.

[0020] In the figure: 1. Support layer; 2. Elastic layer; 3. Outer cardboard; 4. Inner cardboard; 5. Support ribs; 6. Buffer tube; 7. Connecting ribs; 8. Buffer parts; 9. Sun protection layer; 10. Reinforcement layer. DETAILED DESCRIPTION

[0021] 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.

[0022] See also Figure 1 , 2As shown in Figures 3, 4 and 5, the utility model provides a technical solution: a multi-layer elastic corrugated cardboard, comprising: two supporting layers 1, the two supporting layers are symmetrically arranged up and down, each supporting layer comprises an outer cardboard 3 and an inner cardboard 4 and a supporting rib 5 located therebetween; an elastic layer 2 is bonded between the two supporting layers 1, the elastic layer 2 comprises connecting ribs 7 of a wavy structure, and the outer side of the connecting rib 7 is staggeredly bonded with buffer parts 8 and buffer tubes 6 along the wavy structure; a sun protection layer 9 is placed on the outer side of the outer cardboard 3.

[0023] It should be noted that the two supporting layers of the utility model are symmetrically arranged up and down, which can provide uniform support and protection on both sides of the cardboard; the outer cardboard and the inner cardboard are made of high-strength paper materials to enhance the overall durability and compression resistance of the cardboard. The supporting ribs 5 are the parts that provide structural support. They are corrugated paper, which helps to absorb impact and increase the bending resistance of the cardboard; the elastic layer 2 is located between the two supporting layers. This layer fixes the two supporting layers by bonding. The elastic layer includes a connecting rib 7 with a corrugated structure parallel to the inner cardboard 4 in the top tangent direction, which can enhance the overall elasticity and better absorb and disperse external pressure or impact; the buffer 8 and the buffer tube 6 are supported by paper or plastic with good elasticity. As buffer and elastic components, they further enhance the impact resistance and elasticity of the cardboard; the sunscreen layer 9 is arranged on the outside of the outer cardboard 3. Prevent potential damage to the internal items caused by direct sunlight, such as color fading or material degradation. The sunscreen layer 9 can be made of a special material with the ability to reflect or absorb ultraviolet rays to help keep the temperature inside the package stable.

[0024] See also Figure 2 , 4 As shown, the supporting ribs 5 are of a wave-shaped structure, and both sides of the supporting ribs 5 are vertically bonded to the outer paperboard 3 and the inner paperboard 4.

[0025] It should be noted that the two side edges of the supporting ribs 5 of the utility model are perpendicular to the outer cardboard 3 and the inner cardboard 4, and the supporting ribs form a vertical relationship with the two layers of cardboard. The vertical arrangement helps to maximize the load-bearing capacity and elasticity of the wavy supporting ribs to resist external pressure and impact; and the vertical structure also helps to maintain the shape of the cardboard stable and reduce bending or deformation caused by external forces.

[0026] See also Figure 3 , 4 As shown, the connecting ribs 7 and the buffer tube 6 are both fixedly connected between the two inner paperboards 4, the buffer tube 6 is a diamond structure, and the buffer member 8 is made by stacking and fixing two elliptical pipes.

[0027] It should be noted that the connecting corrugation 7 of the utility model is located between the two inner cardboards 4, and plays the role of connecting the various parts of the structure together; the corrugated paper is firmly adhered to the inner cardboard 4 by adhesive or hot melt adhesive to ensure the integrity of the entire structure; the buffer tube 6 adopts a diamond structure, which is more advantageous in symmetry and structural stability than ordinary rectangular or circular structures; the inclined surface of the diamond structure can evenly disperse the pressure when subjected to force, and due to its shape characteristics, it has a good ability to buffer and absorb energy; the diamond structure can deform through its inclined surface when subjected to external impact, thereby absorbing the impact force; the buffer 8 is made of two elliptical pipes stacked and fixed, which makes the buffer itself have a high degree of stability and bearing capacity; the multi-layer structure formed by the superposition of elliptical pipes can provide more buffering space and absorb more impact force when subjected to external force; the two elliptical pipes are tightly connected together by superposition and fixing with adhesive or hot melt adhesive to form an integral buffer structure.

[0028] See also Figure 5 As shown, a reinforcing layer 10 is provided on the outer side of the outer paperboard 3, and a sunscreen layer 9 is located on the outer side of the reinforcing layer 10. The reinforcing layer 10 is a polymer coating, and the sunscreen layer 9 is a phenolic compound coating.

[0029] It should be noted that the reinforcing layer 10 of the utility model is made of polymer material; the polymer coating has good elasticity and durability, and can effectively improve the structural strength and wear resistance of the cardboard; this coating can also be waterproof and moisture-proof, reducing the expansion or deformation of the cardboard due to exposure to a humid environment; applying a polymer coating on the outer cardboard 3 helps to protect the inner structure from physical damage and extend the service life of the packaging; the sunscreen layer 9 uses a phenolic compound coating, which can absorb or reflect ultraviolet rays to prevent ultraviolet rays from damaging the contents of the package and the packaging material itself; phenolic compounds have antioxidant properties, which can prevent the cardboard from fading, yellowing or material degradation due to ultraviolet radiation; adding a sunscreen layer 9 on the outside of the reinforcing layer 10 is suitable for products that need to be transported or stored outdoors, and can greatly reduce potential damage caused by exposure to sunlight.

[0030] In the description of the present invention, it should be understood that the terms "coaxial", "bottom", "one end", "top", "middle", "the other end", "upper", "one side", "top", "inside", "front", "center", "both ends" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0031] In addition, the terms "first", "second", "third" and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first", "second", "third" and "fourth" may explicitly or implicitly include at least one of such features.

[0032] In the present utility model, unless otherwise clearly stipulated and limited, the terms such as "installation", "setting", "connection", "fixation" and "screw-on" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integrated connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. Unless otherwise clearly defined, ordinary technicians in this field can understand the specific meanings of the above terms in the utility model according to the specific circumstances.

[0033] 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 multi-layer elastic corrugated paperboard, characterized in that: include: Two support layers (1), the two support layers are symmetrically arranged up and down, each of the support layers comprises an outer paperboard (3) and an inner paperboard (4) and a support rib (5) located therebetween; An elastic layer (2), the elastic layer (2) being disposed between the two supporting layers (1), the elastic layer (2) comprising a connecting rib (7) with a wavy structure, and buffer members (8) and buffer tubes (6) being alternately arranged along the wavy structure on the outer side of the connecting rib (7); A sun protection layer (9), the sun protection layer (9) is arranged on the outside of the outer paperboard (3).

2. The multi-layer elastic corrugated paperboard according to claim 1, characterized in that: The supporting ribs (5) are of a wave-shaped structure, and two side edges of the supporting ribs (5) are perpendicular to the outer paperboard (3) and the inner paperboard (4).

3. The multi-layer elastic corrugated paperboard according to claim 1, characterized in that: The connecting ribs (7) and the buffer tube (6) are both fixedly connected between the two inner paperboards (4).

4. The multi-layer elastic corrugated paperboard according to claim 1, characterized in that: The buffer tube (6) is of a diamond-shaped structure.

5. The multi-layer elastic corrugated paperboard according to claim 1, characterized in that: The buffer member (8) is made by stacking and fixing two elliptical pipes.

6. The multi-layer elastic corrugated paperboard according to claim 1, characterized in that: A reinforcement layer (10) is provided on the outer side of the outer paperboard (3), and the sun protection layer (9) is located on the outer side of the reinforcement layer (10).

7. The multi-layer elastic corrugated paperboard according to claim 6, characterized in that: The reinforcing layer (10) is a polymer coating, and the sunscreen layer (9) is a phenolic compound coating.

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