Corrugated board capable of damping and preventing moisture

Abstract

The utility model relates to the technical field of corrugated boards, in particular to a damping and moisture-proof corrugated board which comprises a surface layer and a bottom layer, a middle layer is fixedly connected between the surface layer and the bottom layer, and the surface layer and the bottom layer are identical in structure and are distributed in an up-down mirror image mode. The middle layer comprises a corrugated board paper core, and a plurality of upper sponge boards are fixedly connected to the upper portion in the corrugated board paper core in a sleeved mode. According to the corrugated board capable of damping and preventing moisture, the corrugated board core of the middle layer has certain elasticity and can deform when being impacted by external force, part of impact force is absorbed, and the damping performance is further enhanced through the upper sponge boards and the lower sponge boards which are fixedly connected in a sleeved mode, so that the damping performance of the corrugated board is improved, and the service life of the corrugated board is prolonged. The sponge board has good elasticity and energy absorption characteristics, when the corrugated board is vibrated or impacted, impact force can be effectively absorbed and dispersed, vibration transmitted to objects inside the corrugated board is reduced, and the risk that the objects are damaged is greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of corrugated cardboard technology, and in particular to a corrugated cardboard that can be used for shock absorption and moisture protection. Background Technology

[0002] Corrugated cardboard is a multi-layered adhesive, consisting of at least one layer of corrugated core paper and one layer of cardboard. It has high mechanical strength and can withstand collisions and drops during handling. The actual performance of corrugated boxes depends on three factors: the characteristics of the core paper and cardboard, and the structure of the box itself. With the rapid development of the modern logistics industry and the continuous improvement of the requirements for commodity packaging, corrugated cardboard, as an important packaging material, has increasingly diversified performance requirements.

[0003] Traditional corrugated cardboard still has the following shortcomings: 1. During transportation and storage, traditional corrugated cardboard is easily damaged by vibration due to external forces such as bumps and collisions. For some fragile items, this vibration may cause breakage or damage, resulting in economic losses for businesses and consumers; 2. In humid environments, traditional corrugated cardboard has limited moisture-proof performance, and moisture can easily penetrate into the cardboard, affecting the quality of the packaged items. For moisture-sensitive items such as food and medicine, a humid packaging environment may cause the items to deteriorate or become ineffective. Therefore, we have launched a type of corrugated cardboard that can provide shock absorption and moisture protection. Utility Model Content

[0004] The main purpose of this invention is to provide a corrugated cardboard that can absorb shock and prevent moisture, which can effectively solve the problems in the background art.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A type of corrugated cardboard that can absorb shock and prevent moisture includes a top layer and a bottom layer, wherein an intermediate layer is fixedly connected between the top layer and the bottom layer, and the top layer and the bottom layer have the same structure and are distributed in a mirror image.

[0007] The intermediate layer includes a corrugated cardboard core, with several upper sponge boards fixedly sleeved inside the upper part of the corrugated cardboard core and several lower sponge boards fixedly sleeved inside the lower part of the corrugated cardboard core. The corrugated cardboard core is fixedly connected between the top layer and the bottom layer.

[0008] Preferably, the upper sponge plates and the lower sponge plates are distributed in pairs at equal distances.

[0009] By adopting the above technical solution, several upper and lower sponge boards are distributed at equal intervals in pairs, so that when the corrugated cardboard is subjected to external impact, the impact force can be evenly distributed.

[0010] Preferably, the surface layer comprises kraft paperboard, the upper end of which is coated with an adhesive layer, a waterproof layer is bonded to the upper end of the adhesive layer, and the lower end of the kraft paperboard is fixedly connected to the upper end of the corrugated cardboard core.

[0011] By adopting the above technical solution, using kraft paperboard as the main material for the surface layer, kraft paperboard has high strength and toughness, and can withstand certain external impacts and pressures during packaging and transportation, providing reliable protection for the contents.

[0012] Preferably, the outer surfaces of several of the upper sponge boards are fixedly connected to the lower end of the kraft paperboard.

[0013] By adopting the above technical solution, the outer surface of the upper sponge board is fixedly connected to the lower end of the kraft paperboard, so that when the corrugated paperboard is impacted by external force, the sponge board can directly transmit the impact force to the kraft paperboard, thereby dispersing and absorbing the impact force. The sponge has good elasticity and energy absorption characteristics, which can effectively reduce the impact of vibration and impact on the internal items.

[0014] Preferably, the waterproof layer includes a moisture-proof cardboard, the upper end of which has several shock-absorbing grooves, the upper surface of which is coated with a waterproof coating, and the lower end of which is bonded to the upper end of the kraft paperboard through an adhesive layer.

[0015] By adopting the above technical solution: the moisture-proof cardboard itself has a certain moisture-proof performance and can prevent water penetration. As a basic component of the waterproof layer, it provides the first moisture barrier for the corrugated cardboard. In a humid environment, the moisture-proof cardboard can absorb and block some moisture, preventing moisture from directly contacting the inner kraft paperboard and items.

[0016] Preferably, the shock-absorbing grooves are arranged in a rectangular array.

[0017] By adopting the above technical solution, the shock-absorbing grooves distributed in a rectangular array can evenly disperse the impact force when the corrugated cardboard is subjected to external impact.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. In this utility model, the corrugated cardboard core in the middle layer has a certain elasticity and can deform when subjected to external impact, absorbing part of the impact force. The several upper and lower sponge boards fixedly connected inside further enhance the shock absorption performance. The sponge boards have good elasticity and energy absorption characteristics. When the corrugated cardboard is subjected to vibration or impact, it can effectively absorb and disperse the impact force, reduce the vibration transmitted to the internal items, and greatly reduce the risk of damage to the items.

[0020] 2. In this utility model, the waterproof layers in the top and bottom layers play a key role in moisture prevention. The moisture-proof cardboard itself has a certain moisture-proof performance and can prevent water penetration. The waterproof coating is applied to the upper surface of the moisture-proof cardboard to form a tight waterproof film, which further enhances the moisture-proof performance of the corrugated cardboard. Even in a humid environment, it can effectively prevent water from entering the interior of the corrugated cardboard and protect the internal items from moisture.

[0021] 3. In this utility model, the several shock-absorbing grooves on the upper end of the moisture-proof cardboard not only increase the elasticity of the waterproof layer and play a certain buffering role, but also help guide the flow of water in a humid environment, prevent water from accumulating in specific areas, and further improve the moisture-proof effect. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of a corrugated cardboard that can provide shock absorption and moisture protection according to this utility model.

[0023] Figure 2 This is a schematic diagram of the overall structure of the surface layer of a corrugated cardboard that can provide shock absorption and moisture protection according to this utility model.

[0024] Figure 3 This is a schematic diagram of the overall structure of the waterproof layer of corrugated cardboard that can provide shock absorption and moisture protection according to this utility model.

[0025] Figure 4 This is a schematic diagram of the overall structure of the middle layer of a corrugated cardboard material that can provide shock absorption and moisture protection according to this utility model.

[0026] In the diagram: 1. Top layer; 2. Bottom layer; 3. Middle layer; 11. Kraft paperboard; 12. Adhesive layer; 13. Waterproof layer; 131. Moisture-proof paperboard; 132. Shock-absorbing groove; 133. Waterproof coating; 31. Corrugated paperboard core; 32. Upper sponge board; 33. Lower sponge board. Detailed Implementation

[0027] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0028] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0029] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Please see Figure 1-4 This utility model provides a technical solution:

[0031] A type of corrugated cardboard that can absorb shock and prevent moisture includes a face layer 1 and a bottom layer 2, with an intermediate layer 3 fixedly connected between the face layer 1 and the bottom layer 2. The face layer 1 and the bottom layer 2 have the same structure and are distributed in a mirror image.

[0032] In this embodiment, the intermediate layer 3 includes a corrugated cardboard core 31. Several upper sponge boards 32 are fixedly sleeved on the upper part of the corrugated cardboard core 31, and several lower sponge boards 33 are fixedly sleeved on the lower part of the corrugated cardboard core 31. The corrugated cardboard core 31 is fixedly connected between the top layer 1 and the bottom layer 2. The upper sponge boards 32 and the lower sponge boards 33 are distributed in pairs at equal intervals. The top layer 1 includes kraft paperboard 11. An adhesive layer 12 is coated on the upper end of the kraft paperboard 11, and a waterproof layer is bonded to the upper end of the adhesive layer 12. Layer 13, the lower end of the kraft paperboard 11 is fixedly connected to the upper end of the corrugated paperboard core 31; the outer surfaces of several upper sponge boards 32 are all fixedly connected to the lower end of the kraft paperboard 11; the waterproof layer 13 includes a moisture-proof paperboard 131, the upper end of the moisture-proof paperboard 131 has several shock-absorbing grooves 132, the upper surface of the moisture-proof paperboard 131 is coated with a waterproof coating 133, and the lower end of the moisture-proof paperboard 131 is bonded to the upper end of the kraft paperboard 11 through an adhesive layer 12; the several shock-absorbing grooves 132 are distributed in a rectangular array.

[0033] It should be noted that this utility model is a corrugated cardboard that can provide shock absorption and moisture protection. During use, the corrugated cardboard core 31 itself has a certain degree of elasticity. When subjected to external impact, it can deform to a certain extent, thereby absorbing part of the impact force. The upper sponge board 32 and the lower sponge board 33 are distributed in the upper and lower parts of the corrugated cardboard core 31. When the corrugated cardboard is subjected to vibration or impact, the upper sponge board 32 and the lower sponge board 33 can further play a shock absorption role. The sponge has good elasticity and energy absorption characteristics, which can effectively absorb and disperse the impact force, reducing the vibration transmitted to the surface layer 1, the bottom layer 2, and the internal items. The kraft paperboard 11 has high strength and toughness, providing basic support for the corrugated cardboard. The adhesive layer 12 is used to firmly bond the waterproof layer 13 to the kraft paperboard 11. Firstly, the moisture-proof cardboard 131 itself has a certain moisture-proof performance and can prevent water penetration. The presence of the shock-absorbing groove 132 can increase the elasticity of the waterproof layer 13 and play a certain buffering role when subjected to external pressure. The waterproof coating 133 is applied to the upper surface of the moisture-proof cardboard 131 to form a waterproof film, which further enhances the moisture-proof performance of the corrugated cardboard. When encountering a humid environment, the waterproof coating 133 can prevent water from penetrating into the interior of the corrugated cardboard, while the moisture-proof cardboard 131 can absorb and block the small amount of water that has already penetrated in, preventing the water from continuing to spread to the inner kraft paperboard 11 and the intermediate layer 3. The bottom layer 2 has the same structure as the top layer 1 and also plays a moisture-proof role, preventing water from entering the interior of the corrugated cardboard from the bottom, and together with the top layer 1, protecting the internal items from the influence of the humid environment.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A type of corrugated cardboard capable of shock absorption and moisture protection, comprising a surface layer (1) and a bottom layer (2), characterized in that: The top layer (1) and the bottom layer (2) are fixedly connected by an intermediate layer (3), and the top layer (1) and the bottom layer (2) have the same structure and are distributed in a mirror image. The intermediate layer (3) includes a corrugated cardboard core (31), with several upper sponge boards (32) fixedly sleeved in the upper part of the corrugated cardboard core (31) and several lower sponge boards (33) fixedly sleeved in the lower part of the corrugated cardboard core (31). The corrugated cardboard core (31) is fixedly connected between the surface layer (1) and the bottom layer (2).

2. The corrugated cardboard with shock absorption and moisture protection according to claim 1, characterized in that: The upper sponge plates (32) and the lower sponge plates (33) are all distributed in pairs at equal distances.

3. The corrugated cardboard with shock absorption and moisture protection according to claim 1, characterized in that: The surface layer (1) includes kraft paperboard (11), the upper end of which is coated with an adhesive layer (12), the upper end of which is bonded with a waterproof layer (13), and the lower end of which is fixedly connected to the upper end of the corrugated paperboard core (31).

4. A corrugated cardboard material capable of shock absorption and moisture protection according to claim 1, characterized in that: The outer surfaces of several of the upper sponge boards (32) are fixedly connected to the lower end of the kraft paperboard (11).

5. A corrugated cardboard material capable of shock absorption and moisture protection according to claim 3, characterized in that: The waterproof layer (13) includes a moisture-proof cardboard (131), the upper end of which has several shock-absorbing grooves (132), the upper surface of which is coated with a waterproof coating (133), and the lower end of which is bonded to the upper end of the kraft paperboard (11) through an adhesive layer (12).

6. A corrugated cardboard material capable of shock absorption and moisture protection according to claim 5, characterized in that: Several of the aforementioned shock-absorbing grooves (132) are distributed in a rectangular array.

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