Multifunctional moisture-proof corrugated board
By introducing structures such as a waterproof layer, a limiting layer, an elastic layer, an isolation layer, an anti-detachment layer, and a support layer into corrugated cardboard, the problem of reduced strength of corrugated cardboard after it gets damp is solved, achieving the effects of moisture-proof, breathable, and pressure-resistant properties.
Patent Information
- Application Number
- CN202520455010.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-17
- Publication Date
- 2026-03-06
- Estimated Expiration
- 2035-03-17
AI Technical Summary
Existing corrugated cardboard loses strength after getting damp, which may cause it to be unable to bear the weight and collapse.
By incorporating a waterproof layer, a limiting layer, an elastic layer, a separating layer, an anti-detachment layer, a support layer, and an absorbent layer into the structure of corrugated cardboard, the combined design of these layers enhances the cardboard's moisture resistance and compressive strength.
It achieves the structural stability and compressive strength of cardboard in humid environments, prevents cardboard collapse, and has good moisture-proof and breathable properties.
Smart Images
Figure CN223974428U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of corrugated cardboard technology, and in particular to multifunctional moisture-proof corrugated cardboard. Background Technology
[0002] Corrugated cardboard is a multi-layered paperboard made of one or more layers of corrugated paper core bonded to one or two layers of flat cardboard using adhesives. The corrugated shape of the paper core is its prominent structural feature, which provides good cushioning and support strength.
[0003] In addition to its moisture-proof function, multi-functional moisture-proof corrugated cardboard also possesses excellent physical properties. Its internal support structure can absorb and disperse external impacts, providing cushioning protection for the product. During the transportation, loading, unloading, and storage of products, vibrations and collisions are inevitable.
[0004] The compressive and flexural strength of existing corrugated cardboard is crucial for protecting the products inside the packaging. When the cardboard gets damp, its internal fiber structure is damaged, and the strength originally provided by the interweaving and bonding between the fibers is reduced, which may cause the cardboard to be unable to bear the weight and collapse. Utility Model Content
[0005] To overcome the above shortcomings, this utility model provides a multifunctional moisture-proof corrugated cardboard, which aims to improve the problem that the strength of existing corrugated cardboard decreases after it gets wet, causing the cardboard to be unable to bear the weight and resulting in the cardboard collapsing.
[0006] To achieve the above objectives, the present invention provides the following technical solution:
[0007] A multifunctional moisture-proof corrugated cardboard includes a corrugated cardboard body. The upper surface of the corrugated cardboard body is provided with a waterproof layer. The lower surface of the corrugated cardboard body is provided with a limiting layer. The outer wall of the limiting layer is provided with an elastic layer. The outer wall of the elastic layer is provided with an isolation layer. The outer wall of the elastic layer is located on the lower surface of the upper corrugated cardboard body. The lower surface of the isolation layer is provided with an anti-detachment layer. The outer wall of the anti-detachment layer is provided with a support layer. A ventilation groove is provided between the isolation layer and the support layer. Multiple sets of support layers are arranged on the upper surface of the lower corrugated cardboard body. Hollow grooves are provided between the support layers. An absorbent layer is provided on the outer wall of the anti-detachment layer, and the absorbent layer is located within the hollow grooves. The lower surface of the support layer is located on the upper surface of the corrugated cardboard body, and the upper surface of the lower corrugated cardboard body is located on the outer wall of the anti-detachment layer.
[0008] Preferably, the waterproof layer sprayed on the upper surface of the corrugated cardboard body is composed of polyacrylate, which is polymerized from acrylate monomers.
[0009] Preferably, the limiting layer is composed of polyethylene terephthalate, which is a thermoplastic polyester made by polycondensation reaction of terephthalic acid and ethylene glycol.
[0010] Preferably, the elastic layer is composed of styrene-butadiene rubber, which is a synthetic rubber copolymerized from butadiene and styrene.
[0011] Preferably, the insulating layer is composed of polystyrene foam board.
[0012] Preferably, the support layer is made of hardboard, which is synthesized from wood fibers.
[0013] Preferably, the anti-shedding layer is composed of corrugated base paper.
[0014] Preferably, the absorbent layer is composed of natural fibers, which are composed of flax fibers from hemp fibers.
[0015] This utility model has the following beneficial effects:
[0016] 1. In this utility model, a waterproof layer is provided on the upper surface of the corrugated cardboard body, a limiting layer is provided on the lower surface of the corrugated cardboard body, an elastic layer is provided on the outer wall of the limiting layer, the elastic layer is provided on the outer wall of the corrugated cardboard body and the isolation layer, an anti-detachment layer is provided on the lower surface of the isolation layer, a support layer is provided inside the anti-detachment layer, and an absorbent layer is provided inside the support layer, so that the corrugated cardboard has the effects of moisture resistance and pressure resistance. Attached Figure Description
[0017] Figure 1 This is a perspective view of the multifunctional moisture-proof corrugated cardboard proposed in this utility model;
[0018] Figure 2 This is a partial structural diagram of the limiting layer of the multifunctional moisture-proof corrugated cardboard proposed in this utility model.
[0019] Figure 3 This is a partial structural diagram of the elastic layer of the multifunctional moisture-proof corrugated cardboard proposed in this utility model.
[0020] Legend:
[0021] 1. Waterproof layer; 2. Corrugated cardboard body; 3. Restricting layer; 4. Elastic layer; 5. Isolation layer; 6. Support layer; 7. Anti-detachment layer; 8. Absorbent layer. Detailed Implementation
[0022] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.
[0023] Reference Figure 1 - Figure 3 This utility model provides an embodiment of a multifunctional moisture-proof corrugated cardboard, comprising a corrugated cardboard body 2, a waterproof layer 1 on the upper surface of the corrugated cardboard body 2, a limiting layer 3 on the lower surface of the corrugated cardboard body 2, an elastic layer 4 on the outer wall of the limiting layer 3, an isolation layer 5 on the outer wall of the elastic layer 4, the outer wall of the elastic layer 4 being disposed on the lower surface of the upper corrugated cardboard body 2, an anti-detachment layer 7 on the lower surface of the isolation layer 5, a support layer 6 on the outer wall of the anti-detachment layer 7, a breathable groove between the isolation layer 5 and the support layer 6, multiple sets of the support layers 6 being arranged on the upper surface of the lower corrugated cardboard body 2, hollow grooves between the support layers 6, an absorbent layer 8 on the outer wall of the anti-detachment layer 7, the absorbent layer 8 being disposed within the hollow grooves, the lower surface of the support layer 6 being disposed on the upper surface of the corrugated cardboard body 2, and the upper surface of the lower corrugated cardboard body 2 being disposed on the outer wall of the anti-detachment layer 7.
[0024] Specifically, the waterproof layer 1 sprayed on the upper surface of the corrugated cardboard body 2 provides waterproof and moisture-proof effects during use. The limiting layer 3 set on the lower surface of the corrugated cardboard body 2 prevents the elastic layer 4 set inside the limiting layer 3 from falling off during compression. The isolation layer 5 set outside the limiting layer 3 provides secondary waterproof and moisture-proof effects for the corrugated cardboard. The anti-fall-off layer 7 set on the lower surface of the isolation layer 5 prevents the support layer 6 set on the upper surface of the lower corrugated cardboard body 2 and the absorbent layer 8 set inside the support layer 6 from falling off. The ventilation groove between the isolation layer 5 and the support layer 6 provides moisture-proof and breathable effects during use. The absorbent layer 8 set between the support layers 6 achieves stable water absorption and breathability. During use, the corrugated cardboard can be prevented from getting damp and also has good compressive strength and load-bearing capacity.
[0025] Reference Figure 3The waterproof layer 1 sprayed on the upper surface of the corrugated cardboard body 2 is composed of polyacrylate, which is polymerized from acrylate monomers. The limiting layer 3 is composed of polyethylene terephthalate, which is a thermoplastic polyester made by polycondensation reaction of terephthalic acid and ethylene glycol. The elastic layer 4 is composed of styrene-butadiene rubber, which is a synthetic rubber copolymerized from butadiene and styrene. The isolation layer 5 is composed of polystyrene foam board. The support layer 6 is composed of hardboard, which is synthesized from wood fibers. The anti-shedding layer 7 is composed of corrugated base paper. The absorbent layer 8 is composed of natural fibers, which are composed of flax fibers from hemp fibers.
[0026] Specifically, the waterproof layer 1, composed of polyacrylate, is a highly efficient waterproof coating that effectively prevents water from entering the corrugated cardboard body 2 during use. The limiting layer 3, composed of polyethylene terephthalate, has strong toughness and prevents the elastic layer 4 from falling off. The elastic layer 4, composed of styrene-butadiene rubber, has good elasticity and compressive strength. The isolation layer 5, composed of polystyrene foam board, effectively isolates moisture. The support layer 6, composed of rigid fiberboard, provides good support and compressive strength. The absorbent layer 8, composed of natural fibers, placed between the support layers 6, allows the hollow grooves between the support layers 6 to effectively breathe and prevent moisture while also absorbing moisture. The anti-detachment layer 7, composed of corrugated base paper, prevents the support layer 6 and absorbent layer 8 from falling off. During use, the corrugated cardboard is moisture-proof, breathable, and compressive-resistant.
[0027] Working principle: When this corrugated cardboard is needed, a waterproof layer 1 is sprayed onto the corrugated cardboard body 2. The waterproof layer 1 is made of polyacrylate. During use, it not only provides waterproofing but also allows for adjustment of the type and proportion of monomers to regulate the coating's flexibility, hardness, and water resistance, thus meeting the waterproofing requirements of different corrugated cardboards. An elastic layer 4 is set within the limiting layer 3. During use, when heavy objects fall onto the corrugated cardboard body 2, the elastic layer 4, composed of styrene-butadiene rubber, provides compression resistance. Simultaneously, the limiting layer 3, composed of polyethylene terephthalate, has excellent strength and toughness, preventing the elastic layer 4 from detaching, achieving both compression resistance and anti-detachment effects. An isolation layer 5, made of polystyrene foam board, is set outside the limiting layer 3. During use, it provides support and cushioning while also being waterproof. The anti-detachment layer 7 on the lower surface of the isolation layer 5 allows the anti-detachment layer 7, composed of corrugated paper, to effectively prevent the support layer 6 and absorbent layer 8 from detaching. The absorbent layer 8, composed of hemp fiber, between the support layers 6 has the function of absorbing moisture and allowing air to pass through during use. The support layer 6, composed of wood fiber, provides stable support. When a heavy object breaks the isolation layer 5, the elastic layer 4 falls into the ventilation groove, where the support layer 6 provides secondary pressure resistance. When the heavy object is removed, the elasticity of the elastic layer 4 causes the corrugated cardboard body 2 to spring back, allowing the corrugated cardboard to continue to be used. During use, the corrugated cardboard has both moisture-proof and waterproof properties as well as excellent pressure resistance.
[0028] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. Multifunctional moisture resistant corrugated board, comprising a corrugated board body (2), characterized in that: The upper surface of the corrugated paperboard body (2) is provided with a waterproof layer (1), the lower surface of the corrugated paperboard body (2) is provided with a limiting layer (3), the outer wall of the limiting layer (3) is provided with an elastic layer (4), the outer wall of the elastic layer (4) is provided with an isolation layer (5), the outer wall of the elastic layer (4) is arranged on the lower surface of the upper corrugated paperboard body (2), the lower surface of the isolation layer (5) is provided with an anti-falling layer (7), the outer wall of the anti-falling layer (7) is provided with a supporting layer (6), a breathable groove is arranged between the isolation layer (5) and the supporting layer (6), the supporting layer (6) is arranged on the upper surface of the lower corrugated paperboard body (2) in multiple groups, a hollow groove is arranged between the supporting layers (6), the outer wall of the anti-falling layer (7) is provided with an absorbing layer (8), the absorbing layer (8) is arranged in the hollow groove, the lower surface of the supporting layer (6) is arranged on the upper surface of the corrugated paperboard body (2), and the upper surface of the lower corrugated paperboard body (2) is arranged on the outer wall of the anti-falling layer (7).
2. The multi-functional moisture barrier corrugated paperboard according to claim 1, wherein: The waterproof layer (1) sprayed on the upper surface of the corrugated paperboard body (2) is composed of polyacrylate, which is polymerized from acrylate monomers.
3. The multi-functional moisture barrier corrugated paperboard according to claim 1, wherein: The limiting layer (3) is composed of polyethylene terephthalate, which is a thermoplastic polyester made from terephthalic acid and ethylene glycol through polycondensation reaction.
4. The multi-functional moisture barrier corrugated paperboard of claim 1, wherein: The elastic layer (4) is composed of butadiene styrene rubber, which is a synthetic rubber copolymerized from butadiene and styrene.
5. The multi-functional moisture barrier corrugated paperboard of claim 1, wherein: The isolation layer (5) is composed of polystyrene foam board.
6. The multi-functional moisture barrier corrugated paperboard of claim 1, wherein: The supporting layer (6) is composed of hard fiber board, which is synthesized from wood fiber.
7. The multi-functional moisture barrier corrugated paperboard of claim 1, wherein: The anti-falling layer (7) is composed of corrugated paper.
8. The multi-functional moisture barrier corrugated paperboard of claim 1, wherein: The absorbing layer (8) is composed of natural fibers, which are composed of flax fibers.