Environment-friendly heat-resistant corrugated board

By setting a waterproof layer, a heat-resistant layer and protective corners on the corrugated cardboard, and combining aluminum foil, corrugated lining paper and honeycomb lining paper, the water resistance and heat resistance problems of the corrugated cardboard in high humidity and high temperature environments are solved, and the overall strength and service life of the paper are improved.

CN223329628UActive Publication Date: 2025-09-12ZHEJIANG HOPE PACKING CO LTD
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Patent Information

Application Number
CN202422870009.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-25
Publication Date
2025-09-12
Estimated Expiration
2034-11-25

AI Technical Summary

Technical Problem

Existing corrugated cardboard is easily affected by moisture, deformed or softened in high humidity and high temperature environments, resulting in a decrease in strength, affecting the integrity and service life of the packaging. It also has no waterproof function, increasing resource consumption and costs.

Method used

A waterproof layer and a heat-resistant layer are set on the base paper of the corrugated cardboard. The waterproof layer contains waterproof agents such as starch adhesives and water-resistant additives. The heat-resistant layer contains aluminum foil and corrugated lining paper, combined with polystyrene and honeycomb lining paper to enhance the waterproof and heat-resistant properties, and protective corners are fixedly connected to the base paper to enhance the protection function.

Benefits of technology

It improves the water resistance, moisture resistance and high temperature resistance of corrugated cardboard, enhances the overall strength and stability of the paper, prevents deformation and damage, extends its service life and reduces resource consumption.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides an environment-friendly heat-resistant corrugated board, which relates to the technical field of packaging materials and comprises body paper, a waterproof layer arranged on the body paper, a waterproof agent arranged in the waterproof layer, a heat-resistant layer arranged on the body paper and aluminum foil paper arranged in the heat-resistant layer. The waterproof paper is generally used for manufacturing various types of paper products, the waterproof layer is arranged on the body paper, the waterproof agent is contained in the waterproof layer, the waterproof agent can effectively prevent moisture from permeating, the water resistance and the moisture resistance of the paper are improved, in addition, the heat-resistant layer is further arranged on the body paper, the aluminum foil paper is contained in the heat-resistant layer, and the heat-resistant layer is more heat-resistant. The aluminum-foil paper has good thermal conductivity and high temperature resistance, can effectively block heat transfer and protect internal materials from being influenced by high temperature, and through the arrangement of the layers, the raw paper not only has the waterproof and heat-resistant characteristics, but also can adapt to wider use environments and requirements, and is worthy of popularization and application. Therefore, the technical problems of environmental protection, heat resistance and water resistance of the corrugated board are solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of packaging materials, in particular to an environmentally friendly and heat-resistant corrugated paperboard. Background Art

[0002] Environmentally friendly heat-resistant corrugated cardboard is a new type of paper material designed to improve the tolerance of corrugated cardboard in high temperature environments and reduce negative impacts on the environment. The cardboard uses environmentally friendly coating technology to enhance heat resistance and pressure resistance. At the same time, it uses recyclable raw materials, which meets the needs of green and sustainable development. It is widely used in food packaging, transportation and other fields.

[0003] However, in actual use, the following deficiencies still exist. For example, existing corrugated cardboard is not heat-resistant or waterproof. In a high-humidity environment, ordinary corrugated cardboard will absorb moisture in the air, resulting in a decrease in strength and deformation. This hygroscopicity makes the corrugated cardboard extremely susceptible to moisture during transportation and storage, thereby affecting the integrity and safety of the products inside the package. In a high-temperature environment, the strength of ordinary corrugated cardboard will also decrease significantly, which may cause the carton to become soft or even collapse. Since ordinary corrugated cardboard is easily damaged in humid and high-temperature environments, its service life is relatively short, and the packaging material needs to be replaced more frequently, increasing costs and resource consumption.

[0004] Therefore, the utility model proposes an environmentally friendly and heat-resistant corrugated cardboard to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings of the prior art and to provide an environmentally friendly and heat-resistant corrugated paperboard.

[0006] In order to achieve the above-mentioned purpose, the utility model adopts the following technical solution: an environmentally friendly heat-resistant corrugated cardboard, including base paper, a waterproof layer is provided on the base paper, a waterproof agent is provided in the waterproof layer, a heat-resistant layer is provided on the base paper, and aluminum foil is provided in the heat-resistant layer.

[0007] As a preferred embodiment, the waterproofing agent is a starch adhesive and a water-resistant additive, and the water-resistant additive is urea-formaldehyde resin, melamine formaldehyde resin, polyvinyl butyral, etc.

[0008] The beneficial effects of adopting the above further scheme are: urea-formaldehyde resin and melamine-formaldehyde resin are both excellent water-resistant materials. They can form a strong waterproof layer with starch adhesive to effectively prevent moisture penetration. This combination not only improves the water resistance of paper, but also enhances its resistance to moisture and hydrolysis. Polyvinyl butyral, as one of the water-resistant additives, has good bonding properties and can enhance the bonding force between paper fibers, thereby improving the overall strength and durability of the paper. Compared with traditional ones, the combination of water-resistant additives such as starch adhesives is more environmentally friendly because they do not contain harmful volatile organic compounds (VOCs) and have less impact on the environment and human health.

[0009] As a preferred embodiment, a support layer is provided in the heat-resistant layer, and the support layer includes corrugated lining paper, and the corrugated lining paper is fixedly connected to the aluminum foil.

[0010] The beneficial effect of adopting the above-mentioned further solution is that the corrugated lining paper is fixedly connected to the aluminum foil to form a composite structure. This structure combines the high heat resistance of the aluminum foil and the structural strength of the corrugated lining paper. The aluminum foil itself has good thermal conductivity and high temperature resistance, which can effectively block heat transfer and protect the internal materials from the influence of high temperature. The addition of the corrugated lining paper further enhances the physical stability and durability of this layer.

[0011] As a preferred embodiment, a heat insulating agent is provided on the corrugated lining paper, and the material of the heat insulating agent is polystyrene.

[0012] The beneficial effect of adopting the above further solution is that polystyrene is a lightweight, efficient thermal insulation material with excellent thermal insulation performance. It can effectively prevent heat transfer and maintain the low temperature state of the material, thereby providing good protection in high temperature environments.

[0013] As a preferred embodiment, a honeycomb lining paper is provided on the thermal insulation agent.

[0014] The beneficial effects of adopting the above-mentioned further scheme are as follows: honeycomb lining paper is known for its unique hexagonal honeycomb structure, which gives the paper extremely high strength and rigidity while maintaining its lightweight properties. The hexagonal structure can evenly disperse pressure, making the paper more stable when subjected to external forces and less prone to deformation or damage. The addition of honeycomb lining paper significantly improves the overall performance of the thermal insulation agent. Its high strength and rigidity help prevent the thermal insulation agent from being deformed or damaged due to external forces during use, thereby ensuring the durability and stability of the thermal insulation effect.

[0015] As a preferred embodiment, protective corners are fixedly connected to the base paper.

[0016] The beneficial effect of adopting the above-mentioned further solution is that the protective function of the product can be significantly enhanced by fixing and connecting the protective corners on the base paper. The protective corners can absorb and disperse the impact force from the outside, effectively preventing the corners of the product from being damaged due to collision, friction, etc. during transportation, storage and use. This protective effect is crucial to maintaining the integrity and aesthetics of the product, especially for products that need to be transported long distances or frequently handled.

[0017] Compared with the prior art, the advantages and positive effects of the present invention are:

[0018] In the utility model, base paper is a basic material, which is usually used to manufacture various types of paper products. A waterproof layer is provided on the base paper, and the waterproof layer contains a waterproof agent. This waterproof agent can effectively prevent moisture penetration and improve the water resistance and moisture resistance of the paper. In addition, a heat-resistant layer is also provided on the base paper, and the heat-resistant layer contains aluminum foil. The aluminum foil has good thermal conductivity and high temperature resistance, can effectively block heat transfer, and protect internal materials from high temperature. Through the setting of these layers, the base paper not only has the characteristics of waterproof and heat resistance, but also can adapt to a wider range of usage environments and needs, thereby solving the technical problems of environmental protection, heat resistance and waterproofness of corrugated cardboard. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural diagram of an environmentally friendly and heat-resistant corrugated paperboard of the utility model;

[0020] Figure 2 This is a schematic diagram of the heat-resistant layer structure of an environmentally friendly heat-resistant corrugated paperboard of the utility model;

[0021] Figure 3 This is a schematic diagram of the support layer structure of an environmentally friendly and heat-resistant corrugated paperboard of the utility model;

[0022] Figure 4 This is a schematic diagram of the protective corner structure of an environmentally friendly and heat-resistant corrugated cardboard of the utility model.

[0023] Reference numerals:

[0024] 1. Base paper;

[0025] 2. Waterproof layer; 21. Waterproofing agent;

[0026] 3. Heat-resistant layer; 31. Aluminum foil;

[0027] 4. Support layer; 41. Corrugated lining paper; 42. Heat insulation agent; 43. Honeycomb lining paper;

[0028] 5. Protective corners. DETAILED DESCRIPTION

[0029] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0030] like Figure 1-Figure 2 as well as Figure 4 As shown, this embodiment provides a technical solution: an environmentally friendly and heat-resistant corrugated cardboard, comprising base paper 1, a waterproof layer 2 is provided on the base paper 1, a waterproofing agent 21 is provided in the waterproof layer 2, a heat-resistant layer 3 is provided on the base paper 1, and aluminum foil 31 is provided in the heat-resistant layer 3. The base paper 1 is a basic material, which is usually used to manufacture various types of paper products. A waterproof layer 2 is provided on the base paper 1, and the waterproof layer 2 contains a waterproofing agent 21. This waterproofing agent 21 can effectively prevent moisture penetration and improve the water resistance and moisture resistance of the paper. In addition, a heat-resistant layer 3 is also provided on the base paper 1, and the heat-resistant layer 3 contains aluminum foil 31. The aluminum foil 31 has good thermal conductivity and high temperature resistance, can effectively block heat transfer, and protect internal materials from high temperature. Through the arrangement of these layers, the base paper 1 not only has the characteristics of waterproof and heat resistance, but also can adapt to a wider range of usage environments and needs, thereby solving the technical problems of environmental protection, heat resistance and waterproofness of corrugated cardboard.

[0031] The above solutions still have the problem that the corrugated cardboard cannot meet the stability requirements when subjected to external forces, such as Figure 1-Figure 2 as well as Figure 4 As shown: the waterproofing agent 21 is a starch adhesive and a water-resistant additive. The water-resistant additive is urea-formaldehyde resin, melamine-formaldehyde resin, polyvinyl butyral, etc. Urea-formaldehyde resin and melamine-formaldehyde resin are both excellent water-resistant materials. They can form a strong waterproof layer 2 with the starch adhesive to effectively prevent water penetration. This combination not only improves the water resistance of the paper, but also enhances its resistance to moisture and hydrolysis. Polyvinyl butyral, as one of the water-resistant additives, has good bonding properties and can enhance the bonding force between paper fibers, thereby improving the overall strength and durability of the paper. Compared with traditional ones, the combination of starch adhesives and other water-resistant additives is more environmentally friendly because they do not contain harmful volatile organic compounds (VOCs) and have less impact on the environment and human health.

[0032] like Figure 1 as well as Figure 3-Figure 4As shown, a support layer 4 is provided in the heat-resistant layer 3, and the support layer 4 includes a corrugated lining paper 41, which is fixedly connected to the aluminum foil 31. The corrugated lining paper 41 is fixedly connected to the aluminum foil 31 to form a composite structure. This structure combines the high heat resistance of the aluminum foil 31 and the structural strength of the corrugated lining paper 41. The aluminum foil 31 itself has good thermal conductivity and high temperature resistance, can effectively block heat transfer, and protect the internal material from high temperature. The addition of the corrugated lining paper 41 further enhances the physical stability and durability of this layer. A heat insulating agent 42 is provided on the corrugated lining paper 41. The material of the heat insulating agent 42 is polystyrene. Polystyrene is a lightweight and efficient heat insulating material with excellent The thermal insulation performance of the thermal insulation agent 42 is good, which can effectively prevent heat transfer and keep the material at a low temperature, thereby providing good protection in a high temperature environment. A honeycomb lining paper 43 is provided on the thermal insulation agent 42. The honeycomb lining paper 43 is famous for its unique hexagonal honeycomb structure. This structure gives the paper extremely high strength and rigidity while maintaining its lightweight characteristics. The hexagonal structure can evenly disperse the pressure, making the paper more stable when subjected to external forces and not easy to deform or damage. The addition of the honeycomb lining paper 43 significantly improves the overall performance of the thermal insulation agent 42. Its high strength and rigidity help prevent the thermal insulation agent 42 from being deformed or damaged due to external forces during use, thereby ensuring the durability and stability of the thermal insulation effect.

[0033] like Figure 1 as well as Figure 4 As shown, the base paper 1 is fixedly connected with a protective corner 5. Fixedly connecting the protective corner 5 to the base paper 1 can significantly enhance the protection function of the product. The protective corner 5 can absorb and disperse the impact force from the outside, and effectively prevent the corner damage of the product due to collision, friction, etc. during transportation, storage and use. This protective effect is crucial to maintaining the integrity and aesthetics of the product, especially for products that need to be transported over long distances or frequently handled.

[0034] Working principle:

[0035] like Figures 1-4As shown, base paper 1 is a basic material, which is usually used to manufacture various types of paper products. A waterproof layer 2 is provided on the base paper 1, and the waterproof layer 2 contains a waterproofing agent 21. This waterproofing agent 21 can effectively prevent moisture penetration and improve the water resistance and moisture resistance of the paper. In addition, a heat-resistant layer 3 is also provided on the base paper 1, and the heat-resistant layer 3 contains aluminum foil 31. The aluminum foil 31 has good thermal conductivity and high temperature resistance, can effectively block heat transfer, and protect internal materials from high temperature. Through the setting of these layers, the base paper 1 not only has the characteristics of waterproof and heat resistance, but urea-formaldehyde resin and melamine formaldehyde resin are both excellent water-resistant materials. They can form a strong waterproof layer 2 with starch adhesive to effectively prevent moisture penetration. The corrugated lining paper 41 is fixedly connected to the aluminum foil 31 to form a composite structure. This structure combines the high heat resistance of the aluminum foil 31 and the structural strength of the corrugated lining paper 41. The aluminum foil paper 31 itself has good thermal conductivity and high temperature resistance, which can effectively block heat transfer and protect internal materials from high temperature. Polystyrene is a lightweight, efficient thermal insulation material with excellent thermal insulation properties. It can effectively prevent heat transfer and keep the material at a low temperature. The honeycomb lining paper 43 is known for its unique hexagonal honeycomb structure. This structure gives the paper extremely high strength and rigidity while maintaining its lightweight properties. The hexagonal structure can evenly disperse pressure, making the paper more stable when subjected to external forces and not easy to deform or damage. Fixedly connecting the protective corners 5 on the base paper 1 can significantly enhance the protection function of the product. The protective corners 5 can absorb and disperse external impact forces, effectively preventing damage to the corners of the product due to collisions, friction, etc. during transportation, storage and use.

[0036] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any other form. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes for application in other fields. However, any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall still fall within the scope of protection of the technical solution of the present invention.

Claims

1. An environmentally friendly heat-resistant corrugated cardboard, characterized in that: The invention comprises base paper (1), a waterproof layer (2) is provided on the base paper (1), a waterproof agent (21) is provided in the waterproof layer (2), a heat-resistant layer (3) is provided on the base paper (1), and aluminum foil (31) is provided in the heat-resistant layer (3).

2. The environmentally friendly heat-resistant corrugated paperboard according to claim 1, characterized in that: The waterproofing agent (21) is a starch adhesive and a water-resistant auxiliary agent, and the water-resistant auxiliary agent is urea-formaldehyde resin, melamine formaldehyde resin, polyvinyl butyral, etc.

3. The environmentally friendly heat-resistant corrugated paperboard according to claim 1, characterized in that: A support layer (4) is provided in the heat-resistant layer (3), and the support layer (4) comprises a corrugated lining paper (41), and the corrugated lining paper (41) is fixedly connected to the aluminum foil (31).

4. The environmentally friendly heat-resistant corrugated paperboard according to claim 3, characterized in that: A heat insulating agent (42) is provided on the corrugated lining paper (41), and the material of the heat insulating agent (42) is polystyrene.

5. The environmentally friendly heat-resistant corrugated paperboard according to claim 4, characterized in that: A honeycomb-shaped lining paper (43) is provided on the heat insulating agent (42).

6. The environmentally friendly heat-resistant corrugated paperboard according to claim 1, characterized in that: A protective corner (5) is fixedly connected to the base paper (1).