A2-level fireproof decorative plate with leather texture color and texture texture on surface

By using UV paint coating and simulated leather texture mold transfer technology on A2-level fireproof decorative panels, a decorative effect with leather texture, color and texture is formed on the surface, solving the problems of traditional real leather veneers in the field of high-end wall decoration. The problems of insufficient resources and insufficient performance are achieved, and efficient and economical personalization and mass production are achieved.

CN222390844UActive Publication Date: 2025-01-24XIAOSEN NEW MATERIAL TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421067120.9
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-16
Publication Date
2025-01-24
Estimated Expiration
2034-05-16

Smart Images

  • Figure CN222390844U_ABST
    Figure CN222390844U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of A2-level fireproof wall face decoration materials, in particular to an A2-level fireproof decorative plate with leather texture color and texture texture on the surface, which structurally comprises a main body material base material and a moisture-proof and water-proof back coating layer overlaid on the back face of the main body material base material. The decorative surface composite coating is overlaid on the front surface of the main body material base material and integrates the leather texture color and the texture texture. The artificial leather veneer has the texture of artificial leather, solves the problems that the surface of a real leather veneer is not resistant to pollution, not resistant to high temperature, flammable, not fireproof, not damp-proof and not waterproof, has poor antibacterial and odor removal performance, is high in price and cost, unstable in quality, difficult to industrially produce in batches and the like, greatly improves the cost performance, and is suitable for large-scale popularization and application. And the problem of supply and demand contradiction caused by resource limitation in the leather veneer industry is expected to be solved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of A-class fireproof wall decoration materials, in particular to an A2-class fireproof decorative board with leather texture color and grain texture on the surface. Background Art

[0002] Animal leather has unique texture, texture, feel and tactile feel on the surface, and can be processed or added with various unique colors to obtain various unique and high-end finishing effects. Therefore, it is highly costly to use animal leather as a finishing method for home wall decoration. Because animal leather used for finishing must undergo various special processing such as degreasing, mildew prevention, anti-corrosion, fire prevention, waterproofing, coloring, deodorization, and deodorization before it can be safely used in the field of home wall decoration building materials and wall decoration panels.

[0003] However, with the continuous improvement of people's living standards, more and more consumers like home furnishing products with animal genuine leather finishes (such as tiger skin, leopard skin, mink skin, etc.); and traditional genuine leather finish home furnishing products have become increasingly difficult to meet people's various personalized and customized demands for leather finish home furnishing products.

[0004] At present, people are no longer satisfied with leather sofas and furniture, and are also eager to apply leather finishes to various other application scenarios of indoor home wall decoration, such as regular walls, background walls, and theme decorative walls. In fact, leather-finished home products are indeed limited by various limitations such as insufficient leather resource supply, unstable quality, and uneven processing levels. It is difficult to meet the various new demands of the current market; especially in the field of high-end wall decoration such as star-rated hotels, high-end clubs, and high-end entertainment venues, there is not only a huge demand for leather finishing effects, but also requires it to have Class A fireproof and non-combustible performance effects.

[0005] Therefore, the market hopes that the industry can research and develop various leather-faced home products that can be industrialized, customized, standardized, and mass-produced and supplied stably, with good quality and low price. In particular, the A2-level fire-wall decorative panels with leather texture and texture on the surface are the new products that the market expects and has the strongest and most urgent R&D needs. Utility Model Content

[0006] The utility model aims to provide an A2-class fireproof decorative board with leather texture color and texture on the surface, so as to solve the problems raised in the above-mentioned background technology.

[0007] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0008] The utility model aims to provide an A2-class fireproof decorative board with leather texture color and texture on the surface, so as to solve the problems raised in the above-mentioned background technology.

[0009] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0010] An A2-class fireproof decorative board with leather texture color and texture on the surface, wherein the material layer structure comprises: a main material substrate, a moisture-proof and waterproof back coating layer superimposed on the back of the main material substrate, and a decorative surface composite coating with integrated leather texture color and texture superimposed on the front of the main material substrate;

[0011] The decorative surface composite coating integrating leather texture, color and texture includes, from inside to outside, UV formaldehyde-free odor-free roller coating putty filling composite coating, UV formaldehyde-free odor-free roller coating color repair primer composite coating, UV formaldehyde-free odor-free roller coating and spraying simulated leather digital color composite coating, UV formaldehyde-free odor-free roller coating hardening and wear-resistant and easy-sanding middle coating composite coating, UV formaldehyde-free odor-free roller coating and film-pressed simulated leather digital texture matte top coating composite coating.

[0012] Preferably, the main material substrate is a Class A fire-proof, odorless, formaldehyde-free, asbestos-free fiber-reinforced calcium silicate board with dimensions of 6-12mm in thickness, 600-1220mm in width, and 2440-3000mm in length. The difference between the two diagonal lengths should be controlled within 3mm, the arch height at the maximum deformation should be controlled within 3mm, and the edge straightness and the verticality of adjacent edges should be controlled within 1mm / m.

[0013] Preferably, the moisture-proof and waterproof back coating superimposed on the back of the main material substrate is a high-adhesion UV formaldehyde-free odor-free roller-coated matte transparent primer coating, the coating thickness of which is 5-10um, and the length, width and format of the coating are consistent with the main material substrate.

[0014] Preferably, the decorative composite coating with integrated leather texture color and body texture superimposed on the front side of the main material substrate has a total coating thickness of 128um-194um, and the coating length, width and format are consistent with the main material substrate.

[0015] Preferably, the UV formaldehyde-free odor-free roller-coated putty hole-filling composite coating has a coating thickness of 40-60um, and its coating system includes 1 UV formaldehyde-free odor-free roller-coated transparent penetrating primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent adhesion putty primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent sanding primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent ordinary putty primer coating, and 1 UV formaldehyde-free odor-free roller-coated transparent sanding primer coating, which are superimposed in order from inside to outside, and the thickness of each of the above primer coatings is 8-12um.

[0016] Preferably, the UV formaldehyde-free, odor-free, roller-coated, color-correcting primer composite coating has a coating thickness of 21-42um, and its coating system includes three UV formaldehyde-free, odor-free, roller-coated, color-correcting primer coatings superimposed in sequence from the inside to the outside, and the thickness of each of the above primer coatings is 7-14um. The specific color can be customized as needed, and can be one of white, light gray, dark gray, yellow or red.

[0017] Preferably, the UV formaldehyde-free, odor-free roller-coated and spray-coated simulated leather digital pattern composite coating has a coating thickness of 13-22um, and its coating system includes 1 UV formaldehyde-free, odor-free roller-coated ink high adhesion primer coating, 1 UV formaldehyde-free, odor-free spray red ink coating, 1 UV formaldehyde-free, odor-free spray yellow ink coating, 1 UV formaldehyde-free, odor-free spray cyan ink coating, and 1 UV formaldehyde-free, odor-free spray black ink coating, which are superimposed in order from inside to outside. The thickness of the above-mentioned UV formaldehyde-free, odor-free roller-coated ink high adhesion primer coating is 7-10um, and the thickness of the above-mentioned UV formaldehyde-free, odor-free spray ink coatings of each color is 1.5-3.0um.

[0018] Preferably, the UV formaldehyde-free, odor-free, roller-coated, hardened and wear-resistant and easy-to-sand middle coating composite coating has a coating thickness of 14-20um, and its coating system includes 1 UV formaldehyde-free, odor-free, roller-coated, transparent, hardened and wear-resistant primer coating and 1 UV formaldehyde-free, odor-free, roller-coated, transparent, sanding primer coating, which are superimposed in sequence from the inside to the outside, and the thickness of each of the above primer coatings is 7-10um.

[0019] Preferably, the UV formaldehyde-free odor-free roller-coated and film-pressed simulated leather digital texture matte topcoat composite coating has a coating thickness of 40-50um, and its coating system includes two UV formaldehyde-free odor-free roller-coated transparent 3D texture modeling topcoat coatings superimposed in order from the inside to the outside, and one simulated leather digital texture covering pattern layer, the single coating thickness of the UV formaldehyde-free odor-free roller-coated transparent 3D texture modeling topcoat coating is 20-25um, and the simulated leather digital texture covering pattern layer has no actual thickness. It is imprinted or transferred onto the 3D texture modeling topcoat coating on the surface of the board through a 3D texture modeling mold.

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] (1) The utility model replaces the traditional finishing scheme of "genuine leather veneer finishing" with a new finishing scheme of "UV paint coating + UV color ink spray-printed simulated painted coating + simulated leather texture mold transfer leather simulated 3D texture coating". It does not need to use real leather for finishing, but can obtain the same decorative effect of leather finishing (texture color, texture, tactile feel, visual perception, etc.);

[0022] At the same time, it also solves many industry pain points such as the surface of genuine leather facing panels being not resistant to pollution, not resistant to high temperatures, flammable and not fireproof (unable to achieve Class A fireproof non-combustible performance level), not moisture-proof and not waterproof, and having relatively poor antibacterial and odor-free properties, as well as high prices, unstable quality, and difficult to industrialize in large quantities. More importantly, the product can be industrially mass-produced, and the cost-effectiveness is greatly improved. It is expected to solve the supply and demand contradiction problems in the leather facing panel industry due to limited resources, and realize the consumer freedom, on-demand production, and customizable production of leather facing panels (especially rare and precious leather or fur facing panels).

[0023] (2) The utility model integrates the latest digital and intelligent technologies in the field of digital printing, such as digital scanning, digital image design, digital printing, and digital transfer, and has the beneficial effects of new quality productivity, such as energy saving, material saving, labor saving, high efficiency, high quality, high value, optimized resource allocation, deep technological transformation, and upgrading breakthroughs. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0025] In the figure: 1. Main material base material;

[0026] 2. Moisture-proof and waterproof back coating;

[0027] 3. Composite coating for decorative surface integrating leather texture, color and texture;

[0028] 3-1. UV formaldehyde-free and odorless roller-coated putty hole-filling composite coating;

[0029] 3-2. UV formaldehyde-free, odor-free roller coating, color-correcting primer coating, composite coating;

[0030] 3-3. UV formaldehyde-free and odor-free roller coating and spray-coated simulated leather digital color composite coating;

[0031] 3-4. UV formaldehyde-free, odor-free roller coating, hardening and wear-resistant and easy-sanding intermediate coating composite coating;

[0032] 3-5. UV formaldehyde-free odor-free roller coating and film pressing simulated leather digital texture matte surface coating composite coating. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1 , the utility model provides:

[0035] An A2-class fireproof decorative board with leather texture color and texture on the surface, wherein the material layer structure comprises: a main material substrate 1, a moisture-proof and waterproof back coating 2 superimposed on the back of the main material substrate, and a decorative surface composite coating 3 with integrated leather texture color and texture superimposed on the front of the main material substrate;

[0036] Furthermore, the main material substrate 1 is a Class A fireproof, odorless, formaldehyde-free, asbestos-free fiber-reinforced calcium silicate board, with a size specification thickness of 6-12mm (6, 8, 10, 12mm can be selected in this example), a width of 600-1200mm (600, 800, 1000, 1200mm can be selected in this example), a length of 2440-3000mm (2440, 2620, 2850, 3000mm can be selected in this example), a density of 1.45g / cm3, the difference between the lengths of the two diagonals should be controlled within 3mm, the arch height at the maximum deformation should be controlled within 3mm, the edge straightness and the verticality of the adjacent edges should be controlled within 1mm / m, and the size specification allowable deviation thickness is ±0.20mm, width and length are ±2.5mm;

[0037] The design function of the main material substrate 1 is mainly to provide the main material, main size, physical and mechanical properties, and mechanical strength properties, especially to provide A2-level fireproof and non-combustible properties, as well as waterproof and moisture-proof properties, as well as light weight, high-strength physical and mechanical properties, and relatively excellent mechanical processing properties and other performances;

[0038] Furthermore, the moisture-proof and waterproof back coating 2 superimposed on the back of the main material substrate 1 is a high-adhesion UV formaldehyde-free odor-free roller-coated matte transparent primer coating, and the coating thickness is 5-10um (5, 8, 10um can be selected in this example), and the length, width and format of the coating are consistent with the main material substrate 1;

[0039] The design function of the moisture-proof and waterproof back coating 2 is mainly to play a shielding and moisture-proof and waterproof anti-oxidation protective role, to prevent the back of the substrate from directly contacting the moisture in the air, to prevent the penetration and erosion of oxygen and moisture, to avoid the substrate from swelling due to moisture absorption or shrinkage due to water loss, and other dimensional instability, residual stress, cracking, deformation and other appearance quality defects, so that the back of the board can directly contact with the construction environment or application scene with poor interface state such as rough wall, base board, old house and old wall, so as to improve the construction environment adaptability of the board;

[0040] The decorative composite coating 3 with integrated leather texture color and texture superimposed on the front of the main material substrate 1 has a total coating thickness of 128um-194um, and its coating length, width and format are consistent with the main material substrate 1;

[0041] Furthermore, the coating system includes, in order from the inside to the outside: UV formaldehyde-free odor-free roller-coated putty filling composite coating 3-1, UV formaldehyde-free odor-free roller-coated color-correcting primer composite coating 3-2, UV formaldehyde-free odor-free roller-coated and spray-coated simulated leather digital color composite coating 3-3, UV formaldehyde-free odor-free roller-coated hardened and wear-resistant and easy-sanding middle coating composite coating 3-4, UV formaldehyde-free odor-free roller-coated and film-pressed simulated leather digital texture matte top coating composite coating 3-5.

[0042] The design function of the leather texture color and texture integrated decorative surface composite coating 3 is mainly to provide a decorative surface layer with leather surface decorative effect, including: decorative performance of leather texture color and texture, and excellent texture, skin touch and gloss, and excellent surface properties such as paint film hardness, stain resistance, yellowing resistance, impact resistance and deodorization effect;

[0043] Furthermore, the UV formaldehyde-free odor-free roller-coated putty hole-filling composite coating 3-1 has a coating thickness of 40-60um, and its coating system includes 1 UV formaldehyde-free odor-free roller-coated transparent penetrating primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent adhesion putty primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent sanding primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent ordinary putty primer coating, and 1 UV formaldehyde-free odor-free roller-coated transparent sanding primer coating, which are sequentially superimposed and composited in order from inside to outside, and the thickness of each of the above primer coatings is 8-12um (in this example, 8, 10, and 12um can be selected);

[0044] The design function of the UV formaldehyde-free odor-free roller putty pore-filling composite coating 3-1 is mainly to perform flatness putty repair on uneven local parts such as gaps, capillary pores, burrs, grooves, scratches, indentations, depressions, etc. on the surface of the substrate, and at the same time form a good interface between the coating and the substrate for bonding, gluing or adhesion;

[0045] Furthermore, the UV formaldehyde-free, odor-free, roller-coated, color-correcting, primer composite coating 3-2 has a coating thickness of 21-42 um; its coating system includes three UV formaldehyde-free, odor-free, roller-coated, color-correcting primer coatings that are sequentially superimposed and composited in order from the inside to the outside, and the thickness of each of the above primer coatings is 7-14 um (in this example, 7, 10, and 14 um can be selected), and the specific color can be customized as needed, which can be white, light gray, dark gray, yellow, and red;

[0046] The design function of the UV formaldehyde-free, odor-free roller coating, color-correcting primer composite coating 3-2 is mainly to cover or correct the original color and body color of the substrate surface and optimize it to a standard base color, so as to ensure that the same image color coating on different panels of the same board, different panels of the same batch, and the surface of panels of different batches can obtain a consistent finishing effect, avoiding color difference defects or problems; at the same time, the standard base color can also be used as one of the formula colors in the subsequent color coating process, reducing the subsequent use of expensive UV inks, thereby achieving a certain cost reduction effect;

[0047] Furthermore, the UV formaldehyde-free odorless roller coating and spray-coated simulated leather digital color composite coating 3-3 has a coating thickness of 13-22um; its coating system includes 1 UV formaldehyde-free odorless roller-coated ink high adhesion primer coating, 1 UV formaldehyde-free odorless sprayed red ink coating, 1 UV formaldehyde-free odorless sprayed yellow ink coating, 1 UV formaldehyde-free odorless sprayed cyan ink coating, and 1 UV formaldehyde-free odorless sprayed black ink coating, which are sequentially superimposed and composited in order from inside to outside. The thickness of the above-mentioned UV formaldehyde-free odorless roller-coated ink high adhesion primer coating is 7-10um (in this example, 7, 9, and 10um can be selected), and the thickness of the above-mentioned UV formaldehyde-free odorless sprayed ink coatings of each color is 1.5-3.0um (in this example, 1.5, 2.2, and 3.0um can be selected);

[0048] The design function of the UV formaldehyde-free odor-free roller coating and spray-coated simulated leather digital pattern composite coating 3-3 is mainly to give the surface of the plate a decorative effect with leather texture and color, including the decorative texture pattern and decorative color of the leather, and its overall decorative effect;

[0049] Furthermore, the UV formaldehyde-free, odor-free roller-coated, hardened, wear-resistant and easy-sanding intermediate coating composite coating 3-4 has a coating thickness of 14-20um; its coating system includes a UV formaldehyde-free, odor-free roller-coated, transparent, hardened and wear-resistant primer coating and a UV formaldehyde-free, odor-free roller-coated, transparent, sanding primer coating, which are laminated in order from inside to outside, and the thickness of each of the above primer coatings is 7-10um (in this example, 7, 9, and 10um can be selected);

[0050] The design function of the UV formaldehyde-free, odor-free roller coating hardening and wear-resistant and easy-sanding intermediate coating composite coating 3-4 is mainly to give the plate surface a paint film hardness and surface wear resistance that meets the product quality industry standards or national standards;

[0051] Furthermore, the UV formaldehyde-free odor-free roller coating and film-pressed simulated leather digital texture matte surface coating composite coating 3-5 has a coating thickness of 40-50um; its coating system includes two UV formaldehyde-free odor-free roller coating transparent 3D texture modeling topcoat coatings that are sequentially superimposed and composited in order from the inside to the outside, and one simulated leather digital texture cover pattern layer; the single coating thickness of the UV formaldehyde-free odor-free roller coating transparent 3D texture modeling topcoat coating is 20-25um (in this example, 20, 22, 25um can be selected), and the simulated leather digital texture cover pattern layer has no actual thickness, and it is imprinted or transferred onto the 3D texture modeling topcoat coating on the surface of the board through a 3D texture modeling mold;

[0052] The above material layers are compositely processed according to the structural design requirements of the above material layers to obtain the A2-grade fireproof decorative board with leather texture color and texture on the surface as described in the utility model.

[0053] The design function of the UV formaldehyde-free odor-free roller coating and film-pressed simulated leather digital texture matte topcoat composite coating 3-5 is mainly to give the surface of the board the texture and feel of simulated leather, skin feel, and to synergistically improve, optimize and enhance the overall comprehensive decorative effect of the underlying leather texture color and decorative pattern (such as: realism, simulation, authenticity, naturalness, etc.); at the same time, to give the surface of the board a surface gloss and surface feel, tactile texture and other surface sensory and sensory finishing effects that meet the expected design effect.

[0054] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An A2-class fireproof decorative board with leather texture and texture on the surface, characterized in that: Its material layer structure includes: a main material substrate, a moisture-proof and waterproof back coating layer superimposed on the back of the main material substrate, and a decorative surface composite coating with integrated leather texture color and texture superimposed on the front of the main material substrate; The decorative surface composite coating integrating leather texture, color and texture includes, from inside to outside, UV formaldehyde-free odor-free roller coating putty filling composite coating, UV formaldehyde-free odor-free roller coating color repair primer composite coating, UV formaldehyde-free odor-free roller coating and spraying simulated leather digital color composite coating, UV formaldehyde-free odor-free roller coating hardening and wear-resistant and easy-sanding middle coating composite coating, UV formaldehyde-free odor-free roller coating and film-pressed simulated leather digital texture matte top coating composite coating.

2. The A2-class fireproof decorative board with leather texture and texture on the surface according to claim 1, characterized in that: The main material base material is Class A fire-proof, odorless, formaldehyde-free, asbestos-free fiber-reinforced calcium silicate board with dimensions of 6-12mm in thickness, 600-1220mm in width, and 2440-3000mm in length. The difference between the two diagonal lengths should be controlled within 3mm, the arch height at the maximum deformation should be controlled within 3mm, and the edge straightness and the verticality of adjacent edges should be controlled within 1mm / m.

3. The A2-class fireproof decorative board with leather texture and texture on the surface according to claim 1, characterized in that: The moisture-proof and waterproof back coating superimposed on the back of the main material substrate is a high-adhesion UV formaldehyde-free odor-free roller-coated matte transparent primer coating, the coating thickness of which is 5-10um, and the length, width and format of the coating are consistent with the main material substrate.

4. The A2-class fireproof decorative board with leather texture and texture on the surface according to claim 1, characterized in that: The decorative composite coating with integrated leather texture color and body texture superimposed on the front side of the main material substrate has a total coating thickness of 128um-194um, and the coating length, width and format are consistent with the main material substrate.

5. The A2-class fireproof decorative board with leather texture color and texture on the surface according to claim 1, characterized in that: The UV formaldehyde-free odor-free roller-coated putty hole-filling composite coating has a coating thickness of 40-60um, and its coating system includes 1 UV formaldehyde-free odor-free roller-coated transparent penetrating primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent adhesion putty primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent sanding primer coating, 1 UV formaldehyde-free odor-free roller-coated transparent ordinary putty primer coating, and 1 UV formaldehyde-free odor-free roller-coated transparent sanding primer coating, which are superimposed in order from inside to outside, and the thickness of each of the above primer coatings is 8-12um.

6. The A2-class fireproof decorative board with leather texture and texture on the surface according to claim 1, characterized in that: The UV formaldehyde-free, odor-free, roller-coated, color-correcting primer composite coating has a coating thickness of 21-42um. The coating system includes three UV formaldehyde-free, odor-free, roller-coated, color-correcting primer coatings that are superimposed in sequence from the inside to the outside. The thickness of each of the above primer coatings is 7-14um. The specific color can be customized as needed and can be one of white, light gray, dark gray, yellow or red.

7. The A2-class fireproof decorative board with leather texture and texture on the surface according to claim 1, characterized in that: The UV formaldehyde-free, odor-free roller-coated and spray-coated simulated leather digital pattern composite coating has a coating thickness of 13-22um. The coating system includes 1 UV formaldehyde-free, odor-free roller-coated ink high adhesion primer coating, 1 UV formaldehyde-free, odor-free spray red ink coating, 1 UV formaldehyde-free, odor-free spray yellow ink coating, 1 UV formaldehyde-free, odor-free spray cyan ink coating, and 1 UV formaldehyde-free, odor-free spray black ink coating, which are superimposed and composited in order from inside to outside. The thickness of the above-mentioned UV formaldehyde-free, odor-free roller-coated ink high adhesion primer coating is 7-10um, and the thickness of the above-mentioned UV formaldehyde-free, odor-free spray ink coatings of each color is 1.5-3.0um.

8. The A2-class fireproof decorative board with leather texture and texture on the surface according to claim 1, characterized in that: The UV formaldehyde-free, odor-free roller-coated hard and wear-resistant and easy-to-sand middle coating composite coating has a coating thickness of 14-20um. The coating system includes a UV formaldehyde-free, odor-free, roller-coated transparent hard and wear-resistant primer coating and a UV formaldehyde-free, odor-free, roller-coated transparent sanding primer coating, which are superimposed in order from the inside to the outside. The thickness of each of the above primer coatings is 7-10um.

9. The A2-class fireproof decorative board with leather texture and texture on the surface according to claim 1, characterized in that: The UV formaldehyde-free, odor-free roller-coated and film-pressed simulated leather digital texture matte topcoat composite coating has a coating thickness of 40-50um. The coating system includes two UV formaldehyde-free, odor-free roller-coated transparent 3D texture modeling topcoat coatings that are superimposed in order from the inside to the outside, and one simulated leather digital texture covering pattern layer. The single coating thickness of the UV formaldehyde-free, odor-free roller-coated transparent 3D texture modeling topcoat coating is 20-25um. The simulated leather digital texture covering pattern layer has no actual thickness. It is imprinted or transferred onto the 3D texture modeling topcoat coating on the surface of the board through a 3D texture modeling mold.