Waterproof corrugated board

Abstract

The utility model provides a waterproof corrugated board, which relates to the technical field of corrugated boards and comprises an outer waterproof layer, a pressure relief layer is correspondingly arranged at the lower end of the outer waterproof layer, a fiber interlayer is arranged at the lower end of the pressure relief layer, pressure relief rings are uniformly distributed at the upper end and the lower end of the pressure relief layer, and wear-resistant grooves are uniformly distributed on the lower surface of the outer waterproof layer. Pressure relief grooves are evenly distributed in the upper surface of the fiber interlayer, impact of external force can extrude the corresponding pressure relief grooves and cavities through pressure relief rings on the pressure relief layer, so that the pressure relief rings deform and are folded towards the middle, and meanwhile when pressure disappears, the extruded parts of the pressure relief rings stretch into the cavities along with time. The intact pressure relief rings around the pressure relief rings deformed by extrusion form supporting force in the opposite direction, so that the deformed pressure relief rings are separated from the upper notch and the lower notch and are restored in a disguised mode, damage caused by external deformation is reduced, meanwhile, the purpose of buffering next impact is achieved, and therefore the strength is improved, and the service life is prolonged.

Description

Technical Field

[0001] The utility model mainly relates to the technical field of corrugated cardboard, in particular to a waterproof corrugated cardboard. Background Art

[0002] Corrugated cardboard is a multi-layer adhesive body, which consists of at least a layer of wavy core paper interlayer (commonly known as "corrugated sheet", "corrugated paper", "corrugated core paper", "corrugated paper core", "corrugated base paper") and a layer of cardboard (also known as "box board", "box board"). It has high mechanical strength and can withstand collisions and falls during transportation. The actual performance of corrugated cardboard depends on three factors: the characteristics of the core paper and cardboard and the structure of the carton itself, among which the most commonly used are in the transportation profession.

[0003] At present, most of the corrugated cardboards on the market are composed of a layer of corrugated core paper and other materials. The thick, impact-resistant corrugated cardboard is made of honeycomb-type thickening. Because this type of cardboard will have irreversible dents under external force, the waterproof layer on the surface will be deformed. Due to the large deformation, the density of the deformed area is reduced, the waterproof effect is reduced, and the service life will be greatly reduced. Therefore, a corrugated cardboard with strong pressure resistance and reusable properties is needed in the market, so it is necessary to propose an improvement measure to solve the above technical problems.

[0004] It should be noted that the above content belongs to the technical knowledge scope of the inventor. Since the technical content in this field is vast and too complicated, the above content of this application does not necessarily constitute prior art. Utility Model Content

[0005] The utility model provides a waterproof corrugated paperboard to solve the technical problems existing in the above background technology.

[0006] To achieve the above-mentioned purpose, the technical solution provided by the utility model is: a waterproof corrugated cardboard, comprising an outer waterproof layer, a pressure relief layer is correspondingly provided at the lower end of the outer waterproof layer, a fiber barrier layer is provided at the lower end of the pressure relief layer, pressure relief rings are evenly distributed at the upper and lower ends of the pressure relief layer, wear-resistant grooves are evenly distributed on the lower surface of the outer waterproof layer, and pressure relief grooves are evenly distributed on the upper surface of the fiber barrier layer. The pressure relief ring relieves pressure through the corresponding notches on the surfaces of the outer waterproof layer and the fiber barrier layer. After the pressure relief ring is squeezed, the squeezed area will gradually reset.

[0007] Furthermore, bumps are evenly distributed on the upper end of the outer waterproof layer, and a wear-resistant layer is sprayed on the bumps.

[0008] Furthermore, a plurality of tension papers are arranged between the pressure relief rings on both sides of the pressure relief layer, and the outer waterproof layer and the fiber barrier layer are connected to each other on both sides of the pressure relief layer through the tension papers. A corresponding cavity is arranged in the pressure relief ring, and a ventilation groove is arranged through the bottom of the cavity.

[0009] Furthermore, an insect-proof layer is provided at the lower end of the pressure relief groove, and the insect-proof layer is bonded to the bottom of the pressure relief groove, and the insect-proof layer is flush with the lower surface of the fiber insulation layer.

[0010] Furthermore, the lower end of the fiber barrier layer is provided with an anti-mildew layer, the lower end of the anti-mildew layer is provided with an antibacterial layer, and the lower end of the antibacterial layer is provided with corrugated paper.

[0011] Beneficial effects:

[0012] Compared with the prior art, the technical solution provided by this utility model has the following beneficial effects:

[0013] The utility model has a reasonable design. The pressure relief ring on the pressure relief layer will squeeze the corresponding pressure relief groove and cavity, so that the pressure relief ring is deformed and gathered in the middle. The air in the middle is pressurized and diffuses inward, thereby increasing the overall density and pressure resistance. At the same time, when the pressure disappears, the squeezed part of the pressure relief ring will form a supporting force in the opposite direction over time. The intact pressure relief ring around the squeezed and deformed pressure relief ring will form a supporting force in the opposite direction, so that the deformed pressure relief ring will be separated from the upper and lower notches and restored in a disguised manner, thereby reducing the damage caused by external deformation and achieving the purpose of buffering for the next impact, thereby achieving the purpose of improving strength and increasing service life.

[0014] The utility model has a reasonable design and utilizes an outer waterproof layer to isolate water erosion. At the same time, it will be squeezed and other external factors during use, causing the pressure relief ring to deform and shrink toward the middle. The air in the middle will be pressurized and diffuse inward. The density in the middle of the insect-proof layer is relatively low and can pass through a small amount of airflow. When the outer waterproof layer is pressed, the pressure gas inside the outer waterproof layer and the fiber barrier layer is emitted inward through the insect-proof layer, thereby improving the internal insect repellent level. At the same time, the airflow will pass through the mildew-proof layer. Since a large amount of desiccant particles are mixed inside the mildew-proof layer, its density is relatively low and can pass through a small amount of airflow, thereby increasing the internal dryness and avoiding bacterial growth. When the airflow passes through the mildew-proof layer and the antibacterial layer, it flows in the space of the corrugated antibacterial layer. At the same time, when the airflow is turned over, a small amount of functional gas can be brought back to form an internal reflux, thereby forming a dry and insect-proof waterproof function.

[0015] It should be noted that the structures not introduced in the present invention do not involve the design points and improvement directions of the present invention, and are the same as the existing technology or can be implemented by using the existing technology, so they are not described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0017] Figure 2 This is a schematic diagram of the overall exploded cross-section structure of the utility model;

[0018] Figure 3 For the utility model Figure 2 Middle A is a schematic diagram of the enlarged structure;

[0019] Figure 4 For the utility model Figure 2 Middle B is a schematic diagram of the enlarged structure.

[0020] Reference numerals:

[0021] 1. Outer waterproof layer; 2. Pressure relief layer; 3. Fiber barrier layer; 4. Mildew-proof layer; 5. Antibacterial layer; 6. Corrugated paper; 101. Bump; 102. Wear-resistant groove; 201. Pressure relief ring; 202. Cavity; 203. Ventilation groove; 204. Tension paper; 301. Pressure relief groove; 302. Insect-proof layer. DETAILED DESCRIPTION

[0022] To facilitate understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings. Several embodiments of the present invention are given in the drawings. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the present invention more thorough and comprehensive.

[0023] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "page", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc., indicating the orientation or position relationship, are based on the orientation or position relationship 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 operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0025] In this utility model, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," "provided with," "provided on," etc. should be understood in a broad sense. For example, they may refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; or internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in this utility model based on specific circumstances. Example

[0026] Refer to the attached Figure 1-4 A waterproof corrugated cardboard of this embodiment includes an outer waterproof layer 1, a pressure relief layer 2 is correspondingly provided at the lower end of the outer waterproof layer 1, a fiber barrier layer 3 is provided at the lower end of the pressure relief layer 2, pressure relief rings 201 are evenly distributed at the upper and lower ends of the pressure relief layer 2, wear-resistant grooves 102 are evenly distributed on the lower surface of the outer waterproof layer 1, and pressure relief grooves 301 are evenly distributed on the upper surface of the fiber barrier layer 3. The pressure relief ring 201 relieves pressure through the corresponding notches on the surfaces of the outer waterproof layer 1 and the fiber barrier layer 3. After the pressure relief ring 201 is squeezed, the squeezed area of ​​the pressure relief ring 201 will gradually return to its original position. As time goes by, the intact pressure relief rings 201 around the squeezed part of the pressure relief ring 201 will be pulled back to their original position.

[0027] Bumps 101 are evenly distributed on the upper end of the outer waterproof layer 1, and a wear-resistant layer is sprayed on the bumps 101. Wear-resistant grooves 102 are evenly distributed on the lower surface of the outer waterproof layer 1. The outer waterproof layer 1 is formed by mixing and punching waterproof glue and paper scraps to form a waterproof layer. The bumps 101 can better protect the waterproof layer from wear during transportation.

[0028] A plurality of tension papers 204 are arranged between the pressure relief rings 201 on both sides of the pressure relief layer 2. The outer waterproof layer 1 and the fiber barrier layer 3 are connected to the outer waterproof layer 1 and the fiber barrier layer 3 on both sides of the pressure relief layer 2 through the tension papers 204. A corresponding cavity 202 is provided in the pressure relief ring 201, and a ventilation groove 203 is provided through the bottom of the cavity 202. The tension papers 204 are bonded to form a pressable composite structure of the outer waterproof layer 1, the fiber barrier layer 3 and the pressure relief layer 2.

[0029] An insect-proof layer 302 is provided at the lower end of the pressure relief groove 301. The insect-proof layer 302 is correspondingly bonded to the bottom of the pressure relief groove 301, and the insect-proof layer 302 is flush with the lower surface of the fiber barrier layer 3. The density in the middle of the insect-proof layer 302 is relatively low, and a small amount of airflow can pass through it. When the outer waterproof layer 1 is pressed, the pressurized gas inside the outer waterproof layer 1 and the fiber barrier layer 3 is dissipated inward through the insect-proof layer 302, thereby improving the internal insect repellent level.

[0030] An anti-mildew layer 4 is provided at the lower end of the fiber barrier layer 3, an anti-mildew layer 5 is provided at the lower end of the anti-mildew layer 4, and a corrugated base paper 6 is provided at the lower end of the anti-mildew layer 5. A large amount of desiccant particles are doped inside the anti-mildew layer 4 to make it have a lower density and can pass through a fine airflow, thereby increasing the internal dryness and preventing bacterial growth. When the airflow passes through the anti-mildew layer 4 and the anti-bacterial layer 5, it flows in the space of the corrugated anti-bacterial layer 5. At the same time, when the airflow is turned over, a small amount of functional gas can be brought back to form an internal reflux.

[0031] Working principle: When the pressure relief ring 201 on the pressure relief layer 2 is hit by external force, it will squeeze the corresponding pressure relief groove 301 and cavity 202, causing the pressure relief ring 201 to deform and shrink toward the middle. The air in the middle will diffuse inward under pressure, increasing the overall density and pressure resistance. At the same time, when the pressure disappears, the squeezed part of the pressure relief ring 201 will form a supporting force in the opposite direction over time. The intact pressure relief ring 201 around the squeezed and deformed pressure relief ring 201 will form a supporting force in the opposite direction, so that the deformed pressure relief ring 201 will be separated from the upper and lower notches to restore it in disguise, reducing the damage caused by external deformation and achieving the purpose of buffering the next impact, thereby achieving the purpose of increasing strength and service life. At the same time, the outer waterproof layer 1 is used to isolate water erosion. At the same time, it will be squeezed and other external factors during use, so that the pressure relief ring 2 01 is deformed and shrinks toward the middle. The air in the middle is under pressure and diffuses inward. The density in the middle of the insect-proof layer 302 is relatively low and can pass through a small amount of airflow. When the outer waterproof layer 1 is pressed, the pressure gas inside the outer waterproof layer 1 and the fiber barrier layer 3 is emitted inward through the insect-proof layer 302, thereby improving the internal insect repellency. At the same time, the airflow will pass through the mildew-proof layer 4. Since the mildew-proof layer 4 is doped with a large number of desiccant particles, its density is relatively low and can pass through a small amount of airflow, thereby increasing the internal dryness and preventing bacterial growth. When the airflow passes through the mildew-proof layer 4 and the antibacterial layer 5, it flows in the space of the corrugated antibacterial layer 5. At the same time, when the airflow is turned over, a small amount of functional gas can be brought back to form an internal reflux, thereby forming a dry, insect-proof and waterproof function. It is worth mentioning that the overall structure is composed of a mixture of paper materials.

[0032] The above embodiments only express a certain implementation method of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent of the present invention shall be based on the attached claims.

Claims

1. A waterproof corrugated cardboard, characterized by: The invention comprises an outer waterproof layer (1), wherein a pressure relief layer (2) is correspondingly provided at the lower end of the outer waterproof layer (1), a fiber barrier layer (3) is provided at the lower end of the pressure relief layer (2), pressure relief rings (201) are evenly distributed at the upper and lower ends of the pressure relief layer (2), wear-resistant grooves (102) are evenly distributed on the lower surface of the outer waterproof layer (1), and pressure relief grooves (301) are evenly distributed on the upper surface of the fiber barrier layer (3), and the pressure relief ring (201) relieves pressure through the corresponding grooves on the surfaces of the outer waterproof layer (1) and the fiber barrier layer (3), and after the pressure relief ring (201) is squeezed, the squeezed area thereof will gradually return to its original position.

2. The waterproof corrugated cardboard according to claim 1, characterized in that: The upper end of the outer waterproof layer (1) is evenly distributed with protrusions (101), and the protrusions (101) are sprayed with a wear-resistant layer.

3. The waterproof corrugated cardboard according to claim 1, characterized in that: A plurality of tension papers (204) are arranged between the pressure relief rings (201) on both sides of the pressure relief layer (2), and the outer waterproof layer (1) and the fiber barrier layer (3) are connected to each other on both sides of the pressure relief layer (2) through the tension papers (204). A cavity (202) is correspondingly provided in the pressure relief ring (201), and a ventilation slot (203) is provided through the bottom of the cavity (202).

4. The waterproof corrugated cardboard according to claim 1, characterized in that: An insect-proof layer (302) is provided at the lower end of the pressure relief groove (301), and the insect-proof layer (302) is correspondingly bonded to the bottom of the pressure relief groove (301), and the insect-proof layer (302) is flush with the lower surface of the fiber barrier layer (3).

5. The waterproof corrugated cardboard according to claim 1, characterized in that: The lower end of the fiber barrier layer (3) is provided with a mildew-proof layer (4), the lower end of the mildew-proof layer (4) is provided with an antibacterial layer (5), and the lower end of the antibacterial layer (5) is provided with corrugated paper (6).

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