Coating white board with high abrasion resistance and moisture-proof function

Abstract

The utility model relates to the technical field of coated white paper boards, and particularly discloses a coated white paper board with high abrasion resistance and a moisture-proof function, which comprises a base layer, and an abrasion-resistant layer, an ultraviolet protection and antistatic layer, a buffer shock absorption layer and a first moisture-proof barrier layer are respectively arranged on the surface of the base layer from top to bottom. According to the coated white paperboard, through the synergistic effect of all the layers, the excellent wear-resisting and damp-proof effects are achieved, in the wear-resisting aspect, the wear-resisting coating on the outermost layer directly resists friction, ultraviolet protection is achieved, indirect wear is reduced through the anti-static layer, the wear-resisting layer is protected through the buffering and damping layer, and therefore the wear-resisting and damp-proof effects are achieved. The base layer provides support to jointly maintain structural stability so as to guarantee wear resistance, and in the damp-proof aspect, the first damp-proof barrier layer and the second damp-proof barrier layer form double barriers, a closed-cell structure of the buffering and damping layer assists, and the inner surface treatment layer and the outermost layer cooperate to effectively prevent water from invading the base layer from the inner side and the outer side.

Description

Technical Field

[0001] This utility model belongs to the technical field of coated white paperboard, and in particular relates to a coated white paperboard with high wear resistance and moisture-proof function. Background Technology

[0002] Coated white paperboard is a common type of packaging paper, typically composed of multiple layers. It is generally made from waste paper pulp, chemical wood pulp, and other raw materials. After initial shaping through pulping and papermaking processes, one or more layers of coating composed of pigments, adhesives, and other additives are applied to its surface. After drying, calendering, and other processing steps, it acquires good whiteness, smoothness, gloss, and printability, and is widely used in the outer packaging of various commodities such as food, medicine, cosmetics, and electronic products.

[0003] Existing coated white paperboard may experience increased wear due to static electricity attracting dust during use, and the weak support of the base layer leads to overall structural instability, affecting product performance. Improvements are needed to address these issues. Therefore, a coated white paperboard with high wear resistance and moisture-proof function is proposed. Utility Model Content

[0004] The purpose of this invention is to provide a coated white paperboard with high wear resistance and moisture-proof function to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a coated white paperboard with high wear resistance and moisture-proof function, comprising a base layer, wherein the surface of the base layer is provided with a wear-resistant layer, an ultraviolet protection and antistatic layer, a buffer and shock-absorbing layer, and a first moisture-proof barrier layer from top to bottom, and the bottom surface of the base layer is provided with a second moisture-proof barrier layer and an inner surface treatment layer from top to bottom.

[0006] The base layer is made of mixed chemical wood pulp and high-strength synthetic fiber. The wear-resistant layer is composed of nano-ceramic particles and high-performance organic resin. The ultraviolet protection and antistatic layer is composed of polymer material containing ultraviolet absorber and antistatic agent. The cushioning and shock-absorbing layer is made of foamed polyethylene material. The first moisture barrier layer and the second moisture barrier layer are made of aluminum foil material. The inner surface treatment layer is a polymer coating with flexibility and printability.

[0007] Preferably, the thickness of the base layer is 200-300 micrometers, the thickness of the wear-resistant layer is 20-30 micrometers, the thickness of the ultraviolet protection and antistatic layer is 15-20 micrometers, the thickness of the buffer and shock-absorbing layer is 50-80 micrometers, the thickness of both the first and second moisture-proof barrier layers is 15-20 micrometers, and the thickness of the inner surface treatment layer is 15-20 micrometers.

[0008] Preferably, the base material includes sulfate wood pulp, sulfite wood pulp, polyester fibers formed by chemical condensation of organic dicarboxylic acids and diols, and high-strength aramid fibers.

[0009] Preferably, the wear-resistant layer material includes alumina, silicon carbide nano-ceramic particles, polyurethane, and epoxy resin.

[0010] Preferably, the ultraviolet protection and antistatic layer material is polymethyl methacrylate, polyethylene, cationic quaternary ammonium salts, or nonionic polyethylene glycol antistatic agents with added ultraviolet absorbers.

[0011] Preferably, the cushioning and shock-absorbing layer material is foamed polyethylene, and acrylic resin and polyurethane coating.

[0012] Preferably, the first moisture barrier layer and the second moisture barrier layer are made of alloy aluminum foil with added metal elements.

[0013] Preferably, the inner surface treatment layer material is an acrylic resin and a polyurethane coating.

[0014] In summary, compared with the prior art, the beneficial effects of this utility model are:

[0015] 1. In terms of wear resistance, the outermost wear-resistant coating directly resists friction, the UV protection and antistatic layer reduces indirect wear, the buffer and shock-absorbing layer protects the wear-resistant layer, and the base layer provides support, all working together to maintain structural stability and ensure wear resistance. In terms of moisture resistance, the first and second moisture-proof barrier layers form a double barrier, the closed-cell structure of the buffer and shock-absorbing layer assists, and the inner surface treatment layer and the outermost layer work together to effectively prevent moisture from penetrating the base layer from both the inside and outside.

[0016] 2. The outermost ultra-hard wear-resistant coating directly resists external friction, the ultraviolet protection and antistatic layer reduces indirect wear caused by dust adsorption by static electricity, the buffer and shock absorption layer protects the wear-resistant coating from damage when it is impacted, and the high strength of the base layer provides overall support, ensuring that each layer works together during the wear resistance process and maintaining structural stability.

[0017] 3. The first and second moisture-proof barriers of the fourth and sixth layers form a double moisture-proof barrier, effectively blocking moisture. The closed-cell structure of the buffer and shock-absorbing layer assists in moisture protection, preventing moisture from penetrating under impact or pressure. The inner surface treatment layer and the outermost layer also play a certain auxiliary role in moisture protection, preventing moisture from invading the base layer from the inside and outside. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0019] Figure 2 This utility model Figure 1Enlarged structural diagram at point A in the middle.

[0020] Legend:

[0021] 1. Base layer; 2. Wear-resistant layer; 3. UV protection and antistatic layer; 4. Buffer and shock absorption layer; 5. First moisture-proof barrier layer; 6. Second moisture-proof barrier layer; 7. Inner surface treatment layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figure 1-2 This utility model provides a technical solution:

[0024] A coated white paperboard with high wear resistance and moisture-proof function includes a base layer 1. The surface of the base layer 1 is provided with a wear-resistant layer 2, an ultraviolet protection and antistatic layer 3, a cushioning and shock-absorbing layer 4, and a first moisture-proof barrier layer 5 from top to bottom. The bottom surface of the base layer 1 is provided with a second moisture-proof barrier layer 6 and an inner surface treatment layer 7 from top to bottom.

[0025] The base layer 1 is made of mixed chemical wood pulp and high-strength synthetic fiber. The wear-resistant layer 2 is composed of nano-ceramic particles and high-performance organic resin. The ultraviolet protection and antistatic layer 3 is composed of polymer material containing ultraviolet absorber and antistatic agent. The cushioning and shock-absorbing layer 4 is made of foamed polyethylene material. The first moisture barrier layer 5 and the second moisture barrier layer 6 are made of aluminum foil material. The inner surface treatment layer 7 is a polymer coating with flexibility and printability.

[0026] The thickness of the base layer 1 is 200-300 micrometers, the thickness of the wear-resistant layer 2 is 20-30 micrometers, the thickness of the ultraviolet protection and antistatic layer 3 is 15-20 micrometers, the thickness of the buffer and shock-absorbing layer 4 is 50-80 micrometers, the thickness of the first moisture-proof barrier layer 5 and the second moisture-proof barrier layer 6 are both set to 15-20 micrometers, and the thickness of the inner surface treatment layer 7 is set to 15-20 micrometers.

[0027] The base material 1 includes sulfate wood pulp, sulfite wood pulp, polyester fibers formed by chemical condensation of organic dicarboxylic acids and diols, and high-strength aramid fibers.

[0028] The wear-resistant layer 2 material includes alumina, silicon carbide nano-ceramic particles, polyurethane, and epoxy resin.

[0029] The materials for the UV protection and antistatic layer 3 are polymethyl methacrylate, polyethylene, cationic quaternary ammonium salts, and nonionic polyethylene glycol antistatic agents with added UV absorbers.

[0030] The material of the cushioning and shock-absorbing layer 4 is foamed polyethylene, as well as acrylic resin and polyurethane coating.

[0031] The first moisture barrier layer 5 and the second moisture barrier layer 6 are made of alloy aluminum foil with added metal elements.

[0032] The inner surface treatment layer 7 is made of acrylic resin and polyurethane coating.

[0033] Working principle:

[0034] The base layer 1 is made of a mixture of chemical wood pulp and high-strength synthetic fibers (such as sulfate wood pulp, sulfite wood pulp, polyester fiber and aramid fiber), and is the main supporting structure of the paperboard. The selection and proportion of these materials ensure that the base layer 1 has sufficient strength and rigidity while maintaining good flexibility and processability. The thickness of the base layer 1 (200-300 micrometers) ensures the overall stability and durability of the paperboard, providing a solid foundation for each functional layer.

[0035] The wear-resistant layer 2 is composed of nano-ceramic particles and high-performance organic resin, and is directly covered on the base layer 1. The nano-ceramic particles (such as alumina and silicon carbide) can effectively resist direct friction from external objects due to their high hardness and wear resistance. The high-performance organic resin (such as polyurethane and epoxy resin) provides good adhesion and flexibility, ensuring that the wear-resistant layer 2 is tightly bonded to the base layer 1 and is not easy to fall off. When external force is applied to the surface of the cardboard, the wear-resistant layer 2 bears the friction first, protecting the underlying structural layer from damage.

[0036] The UV protection and antistatic layer 3 is located below the wear-resistant layer 2. It is composed of a polymer material containing UV absorbers and an antistatic agent. The UV absorbers (such as specific components added to polymethyl methacrylate) can effectively absorb and convert UV energy, preventing it from penetrating into the cardboard and causing material aging. The antistatic agents (such as cationic quaternary ammonium salts or nonionic polyethylene glycols) reduce the surface resistance of the material, effectively preventing static electricity accumulation and avoiding indirect wear or damage caused by static electricity adsorbing dust.

[0037] The cushioning and shock-absorbing layer 4 is made of foamed polyethylene and is located below the UV protection and antistatic layer 3. With its unique closed-cell structure, foamed polyethylene provides good shock absorption and cushioning performance. When the cardboard is subjected to impact or pressure, this layer can effectively disperse and absorb energy, protect the upper wear-resistant layer 2 and UV protection layer from damage, and also help maintain the overall structural stability of the cardboard.

[0038] The first moisture barrier layer 5 is made of aluminum foil and is directly attached to the bottom surface of the base layer 1. Due to its extremely low air permeability and water permeability, the aluminum foil forms an effective barrier to prevent the intrusion of external moisture and humidity. In addition, the aluminum foil can also reflect light and heat, which can play a certain role in heat preservation and sun protection for the inside of the cardboard.

[0039] The second moisture barrier layer 6 also uses aluminum foil material, but it is located above the inner surface treatment layer 7. Together with the first moisture barrier layer 5, it forms a double moisture barrier, which further enhances the moisture resistance of the cardboard. Even if the first layer is slightly damaged, the second layer can continue to function to ensure that the inside of the cardboard is dry.

[0040] The inner surface treatment layer 7 uses a polymer coating (such as acrylic resin and polyurethane coating) with flexibility and printability, which is directly covered on the second moisture barrier layer 6. This layer not only improves the surface smoothness and printing quality of the paperboard, but also further enhances the moisture-proof effect through its sealing properties. At the same time, the polymer coating also has a certain tear resistance and tensile strength, which improves the overall durability of the paperboard.

[0041] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A coated white paperboard having high wear resistance and moisture resistance, comprising a base layer (1), characterized in that, The surface of the base layer (1) is provided with abrasion-resistant layer (2), ultraviolet protection and antistatic layer (3), buffer shock attenuation layer (4), and the first moisture barrier layer (5) from top to bottom, respectively, the bottom surface of the base layer (1) is provided with the second moisture barrier layer (6) and the inner surface treatment layer (7) from top to bottom, respectively. The base layer (1) is made of mixed chemical wood pulp and high-strength synthetic fiber, the abrasion-resistant layer (2) is made of nano ceramic particles and high-performance organic resin, the ultraviolet protection and antistatic layer (3) is made of polymer material containing ultraviolet absorber and antistatic agent, the buffer shock attenuation layer (4) is made of foamed polyethylene material, the first moisture barrier layer (5) and the second moisture barrier layer (6) are made of aluminum foil material, and the inner surface treatment layer (7) is made of polymer coating with flexibility and printing suitability.

2. The coated white paperboard according to claim 1, having high wear resistance and moisture resistance, characterized in that, The thickness of the base layer (1) is 200-300 microns, the thickness of the abrasion-resistant layer (2) is 20-30 microns, the thickness of the ultraviolet protection and antistatic layer (3) is 15-20 microns, the thickness of the buffer shock attenuation layer (4) is 50-80 microns, the thickness of the first moisture barrier layer (5) and the second moisture barrier layer (6) is 15-20 microns, and the thickness of the inner surface treatment layer (7) is 15-20 microns.

3. The coated white paperboard according to claim 1, having high wear resistance and moisture resistance, wherein, The base layer (1) material includes sulfate wood pulp, sulfite wood pulp, polyester fiber chemically condensed by organic dibasic acid and dibasic alcohol, and high-strength aramid fiber.

4. The coated white paperboard according to claim 1, wherein the coated white paperboard has a high degree of resistance to wear and a moisture-proof function. The abrasion-resistant layer (2) material includes alumina, silicon carbide nano ceramic particles, polyurethane, and epoxy resin.

5. The coated white paperboard according to claim 1, wherein the coated white paperboard has a high degree of resistance to wear and a moisture-proof function. The ultraviolet protection and antistatic layer (3) material is polymethyl methacrylate with ultraviolet absorber, polyethylene, cationic quaternary ammonium salt, and non-ionic polyethylene glycol antistatic agent.

6. The coated white paperboard according to claim 1, wherein the coated white paperboard has a high degree of resistance to wear and a moisture-proof function. The buffer shock attenuation layer (4) material is foamed polyethylene and acrylic resin and polyurethane coating.

7. The coated white paperboard according to claim 1, wherein the coated white paperboard has a high degree of resistance to wear and a moisture-proof function. The first moisture barrier layer (5) and the second moisture barrier layer (6) material is alloy aluminum foil with added metal elements.

8. The coated white paperboard according to claim 1, wherein the coated white paperboard has a high degree of resistance to wear and a moisture-proof function. The inner surface treatment layer (7) material is acrylic resin and polyurethane coating.

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