Composite black paperboard

Abstract

The utility model discloses a composite black cardboard, which relates to the technical field of cardboards and comprises a surface layer, a black core layer, a damp-proof layer, a regenerated fiber layer and a bottom layer, the black core layer is arranged at the bottom end of the surface layer, the damp-proof layer is arranged at the bottom end of the black core layer, the regenerated fiber layer is arranged at the bottom end of the damp-proof layer, and the bottom layer is arranged at the bottom end of the regenerated fiber layer. A first fixing mechanism is arranged between the surface layer and the black core layer, and a second fixing mechanism is arranged between the regenerated fiber layer and the bottom layer. According to the utility model, the damp-proof layer is arranged, is made of a high polymer material, is connected with the black core layer through a physical pressing or hot melting technology and is used for improving the damp-proof performance of the paperboard, so that the damp-proof performance of the paperboard can be improved, the paperboard is prevented from absorbing moisture and deforming in a humid environment, and the durability of the paperboard is enhanced; therefore, the paperboard can be suitable for various environmental conditions.

Description

Technical Field

[0001] The utility model relates to the technical field of cardboard, and particularly relates to a composite black cardboard. Background Art

[0002] Cardboard is a general term for a kind of thick paper between paper and cardboard. Cardboard is often used for postcards, cards, album liners, etc. The surface of cardboard is delicate, smooth, firm and wear-resistant.

[0003] When cardboard is in use, there is a phenomenon that the cardboard comes into contact with water. When water is poured on the surface of the cardboard, the moisture will penetrate into the inside of the cardboard, resulting in the cardboard absorbing moisture and deforming, thereby reducing the durability of the cardboard. At the same time, the supporting strength of the cardboard is low, resulting in easy breakage during the use of the cardboard. For this reason, we propose a composite black cardboard. Content of the Utility Model

[0004] The purpose of the utility model is to provide a composite black cardboard to solve the problems put forward in the above background art.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: A composite black cardboard, including a surface layer, a black core layer, a moisture-proof layer, a recycled fiber layer, and a bottom layer. The black core layer is arranged at the bottom end of the surface layer, the moisture-proof layer is arranged at the bottom end of the black core layer, the recycled fiber layer is arranged at the bottom end of the moisture-proof layer, the bottom layer is arranged at the bottom end of the recycled fiber layer. A first fixing mechanism is arranged between the surface layer and the black core layer, and a second fixing mechanism is arranged between the recycled fiber layer and the bottom layer.

[0006] Preferably, the first fixing mechanism includes a first adhesive layer. The top end of the first adhesive layer is connected to the bottom end of the surface layer, and the bottom end of the first adhesive layer is connected to the bottom end of the black core layer.

[0007] Preferably, the second fixing mechanism includes a second adhesive layer. The top end of the second adhesive layer is connected to the bottom end of the recycled fiber layer, and the bottom end of the second adhesive layer is connected to the top end of the bottom layer.

[0008] Preferably, the surface layer is coated paper, and an anti-ultraviolet coating is arranged at the top end of the surface layer. The thickness of the surface layer is 0.05 - 0.2 millimeters.

[0009] Preferably, the raw material of the black core layer is pure wood black pulp, and the thickness of the black core layer is 0.2 - 0.5 millimeters.

[0010] Preferably, the material of the moisture-proof layer is polyethylene, and the thickness of the moisture-proof layer is 0.02 - 0.1 millimeters.

[0011] Preferably, the thickness of the regenerated fiber layer is 0.1 - 0.5 mm, the bottom layer is kraft paper, and the grammage of the bottom layer is 200 - 300 g per square meter.

[0012] Technical effects and advantages of the present utility model:

[0013] (1) By providing a moisture-proof layer made of a polymer material and connected to the black core layer through physical lamination or hot melt technology, the present utility model can improve the moisture-proof performance of the cardboard, prevent the cardboard from absorbing moisture and deforming in a humid environment, enhance the durability of the cardboard, and enable the cardboard to be applicable to various environmental conditions.

[0014] (2) By providing a bottom layer made of high-strength kraft paper, the present utility model can provide additional strength and support for the cardboard, offer additional strength and rigidity to the cardboard, ensure that the cardboard is not easily damaged during use, provide support and stability, and ensure the reliability of the cardboard in various applications. Description of the drawings

[0015] Figure 1 It is a front sectional structural schematic diagram of the present utility model.

[0016] In the figure: 101, surface layer; 102, first adhesive layer; 103, black core layer; 104, moisture-proof layer; 105, regenerated fiber layer; 106, second adhesive layer; 107, bottom layer. Specific embodiments

[0017] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0018] The present utility model provides as Figure 1A composite black cardboard as shown includes a surface layer 101, a black core layer 103, a moisture-proof layer 104, a recycled fiber layer 105, and a bottom layer 107. The black core layer 103 is disposed at the bottom end of the surface layer 101, the moisture-proof layer 104 is disposed at the bottom end of the black core layer 103, the recycled fiber layer 105 is disposed at the bottom end of the moisture-proof layer 104, and the bottom layer 107 is disposed at the bottom end of the recycled fiber layer 105. A first fixing mechanism is provided between the surface layer 101 and the black core layer 103, and a second fixing mechanism is provided between the recycled fiber layer 105 and the bottom layer 107. The surface layer 101 is made of high-quality coated paper, having excellent printing adaptability and glossiness, providing excellent printing quality and visual effects for the cardboard, being suitable for high-grade printing and packaging. At the same time, the surface of the cardboard is smooth, which can improve the overall aesthetics of the cardboard. The black core layer 103 is made of pure wood pulp black pulp, having high strength and high folding resistance, which can provide strength and rigidity for the cardboard, enhance the durability and structural stability of the cardboard, and the black core layer 103 can block light and prevent light transmission problems, improving the shielding property of the cardboard. The moisture-proof layer 104 is made of a polymer material and is connected to the black core layer through physical pressing or hot-melt technology, used to improve the moisture-proof performance of the cardboard, which can improve the moisture-proof performance of the cardboard, prevent the cardboard from absorbing moisture and deforming in a humid environment, enhance the durability of the cardboard, so that the cardboard can be suitable for various environmental conditions. The recycled fiber layer 105 is made of an environmentally friendly recycled fiber material and is connected to the moisture-proof layer 104 through physical pressing or hot-melt technology, enhancing the environmental protection characteristics of the cardboard, thus enhancing the environmental protection characteristics of the cardboard, meeting the requirements of green environmental protection. The use of recycled fiber materials reduces the dependence on virgin wood pulp, contributing to the sustainable utilization of resources. The bottom layer 107 is made of high-strength kraft paper, providing additional strength and support for the cardboard, which can provide additional strength and rigidity for the cardboard, ensuring that the cardboard is not easily damaged during use, providing support and stability, and ensuring the reliability of the cardboard in various applications. The design of this multi-layer composite structure enables the cardboard to have excellent performance in all aspects, meeting the modern high-quality, high-performance and environmental protection requirements.

[0019] Among them, the first fixing mechanism includes a first adhesive layer 102. The top end of the first adhesive layer 102 is connected to the bottom end of the surface layer 101, and the bottom end of the first adhesive layer 102 is connected to the bottom end of the black core layer 103. The first adhesive layer 102 is made of an environmentally friendly hot-melt adhesive, with a thickness of 0.01 mm to 0.05 mm, used to bond the surface layer 101 and the black core layer 103.

[0020] Among them, the second fixing mechanism includes a second adhesive layer 106. The top end of the second adhesive layer 106 is connected to the bottom end of the recycled fiber layer 105, and the bottom end of the second adhesive layer 106 is connected to the top end of the bottom layer 107. The second adhesive layer 106 is made of an environmentally friendly hot-melt adhesive, with a thickness of 0.01 mm to 0.05 mm, used to bond the recycled fiber layer 105 and the bottom layer 107.

[0021] Among them, the surface layer 101 is coated paper. An anti-ultraviolet coating is provided at the top of the surface layer 101. The thickness of the surface layer 101 is 0.05 - 0.2 mm. The anti-ultraviolet coating can effectively prevent the destruction of paper fibers by ultraviolet rays, reduce the aging and yellowing of the paper, extend the service life of the cardboard, improve the durability of the cardboard in outdoor or sunlight-exposed environments, ensure that it maintains a good appearance and performance for a long time. The anti-ultraviolet coating can protect the printed pattern and the color of the paper itself from the influence of ultraviolet rays, prevent fading and discoloration, and maintain the vividness and consistency of the colors of the printed matter. It is especially suitable for applications that need to be exposed to light for a long time, such as display boards, billboards, and packaging boxes, etc. The anti-ultraviolet coating can also provide certain waterproof and anti-fouling properties, further improve the protection effect of the cardboard, provide an additional protective layer, enhance the performance of the cardboard under various environmental conditions, and increase its application range. Adding the anti-ultraviolet coating makes the composite black cardboard have higher quality and a wider application range, improves the market competitiveness and added value of the product, meets the needs of customers for high performance, durability, and aesthetics, and adapts to the needs of the high-end market. Modern anti-ultraviolet coatings are usually environmentally friendly materials, meeting environmental protection and safety standards, and will not cause harm to the environment and users. By using environmentally friendly anti-ultraviolet coatings, the environmental protection responsibility of the enterprise is reflected, which is in line with the trend of green sustainable development.

[0022] Among them, the raw material of the black core layer 103 is pure wood black pulp. The thickness of the black core layer 103 is 0.2 - 0.5 mm. It has high strength and high folding resistance, can provide strength and rigidity for the cardboard, enhance the durability and structural stability of the cardboard, and the black core layer 103 can block light and prevent light transmission problems, improving the shielding property of the cardboard.

[0023] Among them, the moisture-proof layer 104 is made of polyethylene. The thickness of the moisture-proof layer 104 is 0.02 - 0.1 mm. The moisture-proof layer 104 can also be selected as polypropylene or its copolymer, and is connected to the black core layer through physical pressing or hot melting technology, which is used to improve the moisture-proof performance of the cardboard, can improve the moisture-proof performance of the cardboard, prevent the cardboard from absorbing moisture and deforming in a humid environment, enhance the durability of the cardboard, and enable the cardboard to be applicable to various environmental conditions.

[0024] Among them, the thickness of the regenerated fiber layer 105 is 0.1 - 0.5 millimeters, the bottom layer 107 is kraft paper, the grammage of the bottom layer 107 is 200 - 300 grams per square meter, and it is connected to the moisture-proof layer 104 through physical pressing or hot-melt technology, enhancing the environmental protection characteristics of the cardboard, thus meeting the requirements of green environmental protection. The use of regenerated fiber materials reduces the dependence on virgin wood pulp, contributing to the sustainable utilization of resources. The kraft paper provides additional strength and support for the cardboard, which can provide additional strength and rigidity to the cardboard, ensuring that the cardboard is not easily damaged during use, providing support and stability, and ensuring the reliability of the cardboard in various applications.

[0025] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A composite black cardboard, characterized in that, It includes a surface layer (101), a black core layer (103), a moisture-proof layer (104), a recycled fiber layer (105), and a bottom layer (107). The black core layer (103) is arranged at the bottom end of the surface layer (101), the moisture-proof layer (104) is arranged at the bottom end of the black core layer (103), the recycled fiber layer (105) is arranged at the bottom end of the moisture-proof layer (104), the bottom layer (107) is arranged at the bottom end of the recycled fiber layer (105), a first fixing mechanism is arranged between the surface layer (101) and the black core layer (103), and a second fixing mechanism is arranged between the recycled fiber layer (105) and the bottom layer (107).

2. The composite black cardboard according to claim 1, wherein, The first fixing mechanism includes a first adhesive layer (102). The top end of the first adhesive layer (102) is connected to the bottom end of the surface layer (101), and the bottom end of the first adhesive layer (102) is connected to the bottom end of the black core layer (103).

3. A composite black cardboard according to claim 1, characterized in that, The second fixing mechanism includes a second adhesive layer (106). The top end of the second adhesive layer (106) is connected to the bottom end of the recycled fiber layer (105), and the bottom end of the second adhesive layer (106) is connected to the top end of the bottom layer (107).

4. A composite black cardboard according to claim 1, wherein, The surface layer (101) is coated paper. An anti-ultraviolet coating is arranged at the top end of the surface layer (101), and the thickness of the surface layer (101) is 0.05 - 0.2 millimeters.

5. A composite black cardboard according to claim 1, characterized in that, The raw material of the black core layer (103) is pure wood black pulp, and the thickness of the black core layer (103) is 0.2 - 0.5 millimeters.

6. The composite black cardboard according to claim 1, characterized in that, The material of the moisture-proof layer (104) is polyethylene, and the thickness of the moisture-proof layer (104) is 0.02 - 0.1 millimeters.

7. A composite black cardboard according to claim 1, characterized in that, The thickness of the recycled fiber layer (105) is 0.1 - 0.5 millimeters. The bottom layer (107) is kraft paper, and the grammage of the bottom layer (107) is 200 - 300 grams per square meter.

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