A composite board decorative surface processing technology

Abstract

The present application belongs to the technical field of plate processing, and particularly relates to a composite plate decorative surface processing technology, comprising the following specific steps: base layer preparation step: a central groove is opened on the base layer, the groove is 1.5-2.5 mm deep, the base layer is 0.3-0.5 mm thick about the groove wall, and the base layer is cleaned and flattened; high-precision laser etching step: high-definition digital scanning technology is used to perform three-dimensional scanning on the texture of natural marble or granite to obtain high-resolution original texture data; and the composite plate decorative surface processing technology is based on high-definition digital scanning and high-precision laser etching technology, combined with nano material enhancement and light and shadow layer processing, to realize high simulation of the texture and improvement of the plate performance, and the application of the transparent nano coating protective layer further enhances the appearance and durability of the decorative surface, and the process is simple and efficient, providing strong support for the technical innovation and market expansion of the decorative plate industry.

Description

Technical Field

[0001] This invention belongs to the field of sheet metal processing technology, and specifically relates to a process for processing decorative surfaces of composite sheet metal. Background Technology

[0002] With the rapid development of the building decoration industry, the requirements for the decorative effect and durability of boards are increasing. Traditional board surface processing techniques, such as spraying and printing, can improve the appearance of boards to a certain extent, but often have problems such as unclear texture, low simulation and poor wear resistance. In recent years, although some new board surface processing techniques have emerged, such as using heat transfer technology or 3D printing technology, these technologies are either expensive or difficult to achieve large-scale production, and their environmental friendliness needs to be further improved.

[0003] In contrast, the use of nanotechnology for surface treatment of slabs has gradually attracted attention. Nano-coating materials have excellent wear resistance, corrosion resistance, and transparency, which can significantly improve the decorative effect and service life of slabs. At the same time, high-precision laser etching technology can accurately replicate the texture of natural stone, making the surface of the slab more realistic and three-dimensional. However, at present, there are few slab decorative surface processing technologies that combine nano-coating technology with high-precision laser etching technology, and there are still some technical challenges in practical applications. Therefore, it is urgent to develop a composite slab decorative surface processing technology that combines nano-coating technology and high-precision laser etching technology. Summary of the Invention

[0004] (a) Technical problems to be solved

[0005] To overcome the shortcomings of existing technologies, this invention provides a composite board decorative surface processing technology that combines nano-coating technology with high-precision laser etching technology.

[0006] (II) Technical Solution

[0007] The present invention is achieved through the following technical solution: The present invention proposes a composite board decorative surface processing technology, including the following specific steps: Base preparation step: a centrally located groove is opened on the base, the groove depth is 1.5-2.5mm, the thickness of the base about the side wall of the groove is 0.3-0.5mm, and the base is cleaned and leveled.

[0008] High-precision laser etching steps: High-definition digital scanning technology is used to perform three-dimensional scanning of the texture of natural marble or granite to obtain high-resolution original texture data; based on the obtained texture data, high-precision laser etching technology is used to etch simulated textures on the inner surface of the grooves on the substrate.

[0009] The reinforcing layer hot-pressing curing step: nano-ceramic material is selected, and the nano-ceramic material is uniformly coated on the texture layer according to a ratio of 1:10-1:20 of the nano-ceramic material to the surface area of the texture layer to form a reinforcing layer; and the reinforcing layer is subjected to hot-pressing curing by using a hot-pressing curing device under the condition of a temperature range of 160-190 DEG C and a pressure of 6-9 MPa;

[0010] The light and shadow layer processing step: titanium dioxide nanoparticles and silicate nanoparticle material are selected, and the titanium dioxide nanoparticles and the silicate nanoparticle material are uniformly mixed according to a mass ratio of 1:2-1:3 of the titanium dioxide nanoparticles to the silicate nanoparticle material, and then the mixture is uniformly coated on the surface of the reinforcing layer to form a light and shadow layer; and the light and shadow coating is subjected to curing treatment by using ultraviolet curing or thermal curing.

[0011] The protective layer coating and fine polishing step: transparent nano-coating material is selected as the protective layer, and the transparent nano-coating material is uniformly coated on the light and shadow layer and on the entire surface of the base layer according to a ratio of 1:8-1:15 of the transparent nano-coating material to the surface area of the entire base layer to form a transparent protective layer; and the transparent protective layer is subjected to polishing treatment by using a fine polishing device to ensure the smoothness and transparency of the surface.

[0012] Further, the resolution of the high-definition digital scanning technology is greater than or equal to 2000 dpi.

[0013] Further, in the high-precision laser etching step, a high-precision laser etching device is used, the laser focusing diameter of which is not more than 0.05 mm, and according to the obtained texture data, a simulated texture is drawn on the inner surface of the groove on the base layer, the texture depth matches the inner depth of the groove, and the error is not more than ±0.1 mm.

[0014] Further, the flatness error of the base layer after the flatness treatment is not more than ±0.2 mm.

[0015] Further, in the reinforcing layer hot-pressing curing step, the hot-pressing curing time is 10-15 minutes.

[0016] Further, in the light and shadow layer processing step, the curing time of the ultraviolet curing or thermal curing method is 5-8 minutes.

[0017] Further, the transparent nano-coating material is SiO2 nanoparticles, the particle size range of which is 10-50 nm, the purity of which is not less than 99.9%, and the ratio of the SiO2 nanoparticles to the surface area of the entire base layer is 1:12; and the thickness of the protective layer is 50-100 nm.

[0018] Further, the base layer material is a high-density fiberboard or a metal plate.

[0019] Further, in the protective layer coating and fine polishing step, the fine polishing equipment is set to a polishing speed of 1500-2000 rpm, and the polishing time is 3-5 minutes.

[0020] (Three) beneficial effects

[0021] Compared with the prior art, the present application has the following beneficial effects:

[0022] The composite board decorative surface processing technology proposed by the present application exhibits significant positive effects in multiple aspects; through high-definition digital scanning and high-precision laser etching technology, accurate replication of textures is achieved, making the decorative surface more realistic and artistic; the addition of a nano-ceramic reinforcing layer significantly improves the hardness and wear resistance of the board, prolonging its service life; the combination of titanium dioxide nanoparticles and silicate nanoparticles forms a unique light and shadow layer, enhancing the three-dimensionality and visual effect of the decorative surface; the use of a transparent nano-coating protective layer not only improves the stain resistance and weather resistance of the board, but also ensures the smoothness and transparency of the surface through fine polishing, further enhancing the overall aesthetic appeal;

[0023] In addition, the process is simple to operate and efficient, suitable for large-scale production; through optimization of the ratio and process parameters, efficient use of materials and cost reduction are achieved, and it has broad market application prospects;

[0024] In summary, the composite board decorative surface processing technology proposed by the present application has significant advantages in improving board performance, beautifying decorative effects, and improving production efficiency, and injects new vitality into the technical innovation and market development of the decorative board industry. BRIEF DESCRIPTION OF DRAWINGS

[0025] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments, with reference to the following drawings:

[0026] Figure 1 The processing flowchart of the present application. DETAILED DESCRIPTION

[0027] In this technical solution:

[0028] In order to make the purpose, technical scheme and advantages of the present application more clear and explicit, the following will further describe the present application in combination with the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application, and are not used to limit the present application.

[0029] Reference Figure 1As shown, the present application proposes a composite board decorative surface processing technology, which comprises the following specific steps: base layer preparation step: a central groove is opened on the base layer, the groove is 1.5-2.5mm deep, the thickness of the base layer about the groove side wall is 0.3-0.5mm, and the base layer is cleaned and planarized;

[0030] High-precision laser etching step: high-definition digital scanning technology is used to perform three-dimensional scanning on the texture of natural marble or granite to obtain high-resolution original texture data; according to the obtained texture data, high-precision laser etching technology is used to draw simulated texture on the inner surface of the groove on the base layer;

[0031] Enhanced layer hot pressing curing step: nano ceramic material is selected, and the nano ceramic material is uniformly coated on the texture layer according to the ratio of 1:10-1:20 of the surface area of the nano ceramic material and the texture layer to form an enhanced layer; a hot pressing curing device is used to hot press and cure the enhanced layer under the condition of temperature range of 160-190℃ and pressure of 6-9MPa;

[0032] Light and shadow layer processing step: titanium dioxide nanoparticles and silicate nanoparticle materials are selected, and the titanium dioxide nanoparticles and the silicate nanoparticle materials are uniformly mixed according to the mass ratio of 1:2-1:3 of the titanium dioxide nanoparticles and the silicate nanoparticle materials, and then the mixture is uniformly coated on the surface of the enhanced layer to form a light and shadow layer; the light and shadow coating is cured by ultraviolet curing or thermal curing;

[0033] Protective layer coating and fine polishing step: transparent nano coating material is selected as the protective layer, and the transparent nano coating material is uniformly coated on the light and shadow layer according to the ratio of 1:8-1:15 of the surface area of the transparent nano coating material and the entire base layer, and the transparent nano coating material is coated on the entire surface of the base layer to form a transparent protective layer; then a fine polishing device is used to polish the transparent protective layer to ensure the smoothness and transparency of the surface.

[0034] Among them, the resolution of the high-definition digital scanning technology is ≥2000dpi.

[0035] Among them, in the high-precision laser etching step, a high-precision laser etching device is used, the laser focusing diameter of which is not more than 0.05mm, according to the obtained texture data, the simulated texture is drawn on the inner surface of the groove on the base layer, the texture depth matches the inner depth of the groove, and the error is not more than ±0.1mm.

[0036] Among them, the flatness error of the base layer after planarization treatment is not more than ±0.2mm.

[0037] Among them, in the enhanced layer hot pressing curing step, the hot pressing curing time is 10-15 minutes.

[0038] The curing time of the ultraviolet curing or thermal curing mode in the light and shadow layer processing step is 5-8 minutes.

[0039] The transparent nano coating material is SiO2 nanoparticles with a particle size range of 10-50 nm and a purity of not less than 99.9%, and the ratio of SiO2 nanoparticles to the surface area of the entire base layer is 1:12.

[0040] The base layer material is high-density fiberboard or metal plate.

[0041] In the protective layer coating and fine polishing step, the fine polishing equipment is set to a polishing speed of 1500-2000 rpm, and the polishing time is 3-5 minutes.

[0042] Working principle:

[0043] Working principle:

[0044] The working principle of the composite board decorative surface processing technology of the present application is based on modern high-precision material processing and coating technology, through a series of fine steps, the texture of the base plate is described, enhanced and protected,

[0045] First, a central groove is opened on the base layer, and it is cleaned and flattened, providing a good foundation for subsequent texture description and coating,

[0046] Then, high-definition digital scanning technology is used to obtain high-resolution texture data of natural marble or granite, and then high-precision laser etching equipment is used to etch the simulated texture in the groove of the base layer to realize accurate replication of the texture,

[0047] Subsequently, nano ceramic material is selected to form the reinforcing layer, and through hot pressing curing technology, the nano ceramic material is tightly combined with the texture layer to enhance the hardness and wear resistance of the plate,

[0048] Positive effect:

[0049] The composite board decorative surface processing technology of the present application has significant positive effects;

[0050] Firstly, by high-precision laser etching technology, the natural marble or granite texture is accurately copied, making the plate have high simulation and natural sense in visual effect, greatly improving its decorative effect;

[0051] Secondly, the introduction of nano-ceramic reinforced layer significantly enhances the hardness and wear resistance of the plate, improves its service life and durability, and makes it suitable for various complex use environments;

[0052] In addition, the processing of light and shadow layer makes the surface of the plate present unique light and shadow effect, enhances the three-dimensional and hierarchical sense of the plate, and further improves its decorative effect;

[0053] Finally, the coating and polishing treatment of transparent nano-coating protective layer not only enhances the wear resistance and weather resistance of the plate, but also ensures the smoothness and transparency of the surface, so that the plate reaches a high level in both aesthetics and practicality;

[0054] In summary, the composite plate decorative surface processing technology of the present application provides a high-efficiency, environmentally friendly and beautiful plate processing method for the modern building decoration industry through its unique working principle and positive effect, which has broad application prospect and market potential. Embodiment

[0055] Base preparation: high-density fiberboard is selected as the base layer, a central groove is opened, the groove is 2mm deep, and the side wall thickness is 0.4mm; after mechanical cleaning and flattening treatment, the flatness error is ±0.1mm;

[0056] High-precision laser etching: high-definition digital scanning technology (resolution 2400dpi) is used to scan the natural marble texture in three dimensions to obtain the original texture data; a laser etching device with a laser focus diameter of 0.04mm is used to draw simulated texture in the groove of the base layer, the texture depth matches the groove depth, and the error is ±0.05mm;

[0057] Reinforced layer hot pressing curing: nano-ceramic material is selected, and is uniformly coated on the texture layer according to the ratio of nano-ceramic material to the surface area of the texture layer being 1:15; hot pressing curing is carried out at 170℃ and 7MPa for 12 minutes;

[0058] Light and shadow layer treatment: according to the mass ratio of titanium dioxide nanoparticles to silicate nanoparticles material being 1:2.5, they are mixed and uniformly coated on the reinforced layer; ultraviolet curing method is used, and the curing time is 6 minutes;

[0059] Protective layer coating, fine polishing: SiO2nanoparticles are selected as transparent nanometer coating materials, with a particle size of 30 nm and a purity of 99.95%. The coating is uniformly applied according to a ratio of 1:12 of SiO2nanoparticles to the surface area of the base layer. The fine polishing equipment is set to a rotation speed of 1800 rpm, and the polishing time is 4 minutes.

[0060] Experimental data: After the above process, the hardness of the plate is improved by 30%, the wear resistance is improved by 25%, and the gloss reaches 95%. Example

[0061] Base layer preparation: metal plate is used as the base layer, with a groove depth of 1.8 mm and a side wall thickness of 0.35 mm. After cleaning and flattening treatment, the flatness error is ±0.15 mm.

[0062] High-precision laser etching: high-definition digital scanning technology (resolution 2200 dpi) is used to scan the granite texture, and a laser etching device with a laser focus diameter of 0.045 mm is used to draw the texture, with an error of ±0.08 mm.

[0063] Enhanced layer hot pressing curing: nano-ceramic material is selected, and the coating is applied according to a ratio of 1:12 of nano-ceramic material to the surface area of the texture layer. Hot pressing curing is carried out at 180°C and 8MPa for 10 minutes.

[0064] Light and shadow layer treatment: titanium dioxide nanoparticles and silicate nanoparticles are mixed and coated according to a mass ratio of 1:2, and a heat curing method is used, with a curing time of 7 minutes.

[0065] Protective layer coating, fine polishing: SiO2nanoparticles are selected as transparent nanometer coating materials, with a particle size of 40 nm and a purity of 99.9%. The coating is applied according to a ratio of 1:12 of SiO2nanoparticles to the surface area of the base layer. The fine polishing equipment is set to a rotation speed of 1600 rpm, and the polishing time is 5 minutes.

[0066] Experimental data: After the above process, the hardness of the plate is improved by 28%, the wear resistance is improved by 22%, and the gloss reaches 92%. Example

[0067] Base layer preparation: high-density fiberboard is selected, with a groove depth of 2.2 mm and a side wall thickness of 0.45 mm. After cleaning and flattening treatment, the flatness error is ±0.08 mm.

[0068] High-precision laser etching: high-definition digital scanning technology (resolution 2500 dpi) is used to scan the natural marble texture, and a laser etching device with a laser focus diameter of 0.048 mm is used to draw the texture, with an error of ±0.06 mm.

[0069] Reinforced layer hot-pressing curing: nano-ceramic material is selected, and is coated according to a ratio of 1:18 of the nano-ceramic material to the surface area of the texture layer; under the condition of 165 DEG C and 6.5 MPa, hot-pressing curing is carried out for 15 minutes;

[0070] Light and shadow layer treatment: titanium dioxide nanoparticles and silicate nanoparticle materials are mixed and coated according to a mass ratio of 1:3, and an ultraviolet curing mode is adopted, and the curing time is 5 minutes;

[0071] Protective layer coating and fine polishing: SiO2 nanoparticles are selected as transparent nano-coating materials, the particle size is 20 nm, the purity is 99.98%, and coating is carried out according to a ratio of 1:12 of the SiO2 nanoparticles to the surface area of the base layer; the fine polishing equipment is set to a rotating speed of 2000 rpm, and the polishing time is 3 minutes;

[0072] Experimental data: after the above process, the hardness of the plate is improved by 32%, the wear resistance is improved by 27%, and the gloss reaches 96%;

[0073] Summary: the above three examples show the application of the composite plate decorative surface processing technology in different base materials and different process parameters, and good experimental results are obtained, which verifies the feasibility and superiority of the present application.

[0074] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0075] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0076] In the present application, unless specifically defined otherwise and limited, the terms "mount", "connect", "connection", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0077] In the present application, unless specifically defined otherwise and limited, the first feature "on" or "under" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "on", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0078] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. For those skilled in the art, the present application can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A process for finishing a decorative surface of a composite panel, characterized in that: The method comprises the following specific steps: Base preparation step: a central groove is opened on the base, the groove has a depth of 1.5-2.5 mm, the base has a thickness of 0.3-0.5 mm with respect to the side wall of the groove, and the base is cleaned and planarized; High-precision laser etching step: high-definition digital scanning technology is used to perform three-dimensional scanning on the texture of natural marble or granite to obtain high-resolution original texture data; according to the obtained texture data, high-precision laser etching technology is used to draw simulated texture on the inner surface of the groove on the base; Enhanced layer hot-pressing curing step: nano-ceramic material is selected, and the nano-ceramic material is uniformly coated on the texture layer according to a ratio of 1:10-1:20 of the nano-ceramic material to the surface area of the texture layer to form an enhanced layer; a hot-pressing curing device is used to hot-press and cure the enhanced layer under the condition of a temperature of 160-190 ℃ and a pressure of 6-9 MPa; Light and shadow layer processing step: titanium dioxide nanoparticles and silicate nanoparticle material are selected, and the titanium dioxide nanoparticles and the silicate nanoparticle material are uniformly mixed according to a mass ratio of 1:2-1:3 of the titanium dioxide nanoparticles to the silicate nanoparticle material, and then the mixture is uniformly coated on the surface of the enhanced layer to form a light and shadow layer; the light and shadow coating is cured by ultraviolet curing or thermal curing; Protection layer coating and fine polishing step: transparent nano-coating material is selected as the protection layer, and the transparent nano-coating material is uniformly coated on the light and shadow layer and the entire surface of the base according to a ratio of 1:8-1:15 of the transparent nano-coating material to the surface area of the entire base to form a transparent protection layer; and fine polishing equipment is used to polish the transparent protection layer to ensure the smoothness and transparency of the surface.

2. The process of claim 1, wherein: The resolution of the high-definition digital scanning technology is greater than or equal to 2000 dpi.

3. The process of claim 1, wherein: In the high-precision laser etching step, a high-precision laser etching device is used, the laser focusing diameter of which is not more than 0.05 mm, simulated texture is drawn on the inner surface of the groove on the base according to the obtained texture data, and the texture depth matches the inner depth of the groove with an error of not more than ±0.1 mm.

4. The process of claim 1, wherein: The flatness error of the base after planarization treatment is not more than ±0.2 mm.

5. The process of claim 1, wherein: In the enhanced layer hot-pressing curing step, the hot-pressing curing time is 10-15 minutes.

6. The process of claim 1, wherein: In the light and shadow layer processing step, the curing time of the ultraviolet curing or thermal curing method is 5-8 minutes.

7. The process of claim 1, wherein: The transparent nano-coating material is SiO2 nanoparticles with a particle size range of 10-50 nm and a purity of not less than 99.9%, and the ratio of the SiO2 nanoparticles to the surface area of the entire base is 1:12; the thickness of the protection layer is 50-100 nm.

8. The process of claim 1, wherein: The base material is high-density fiberboard or metal plate.

9. The process of claim 1, wherein: In the protection layer coating and fine polishing step, the fine polishing equipment is set to a polishing speed of 1500-2000 rpm and a polishing time of 3-5 minutes.

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