Process for processing multicolor patterns on plate by using oil paint

Abstract

The invention discloses a process for processing multicolor patterns on a plate by using oil paint, and solves the defects of spraying and coating patterns and pattern singleness in the prior art. The method comprises the following steps that S1, an epoxy transition paint layer is formed on the surface of a plate in a roller coating mode; s2, a primer layer is arranged on the epoxy transition paint layer through oil primer in a roller coating mode; s3, the floral patterns are decomposed according to the number of colors, and a plurality of corresponding silk-screen printing plates are manufactured; s4, forming a multi-layer finish paint layer with multi-color patterns on the primer layer by adopting oily finish paint in a silk-screen and roller coating manner; and S5, drying is conducted after roller coating, and the plate with the multicolor oil paint patterns can be obtained. The method is reasonable in design, the oil paint roller coating technology is adopted for processing the multicolor patterns on the plate for the first time, and compared with traditional plate processing technologies such as paint spraying and the like, the method has wide application scenes and advantages and has good practical application value.

Description

Technical Field

[0001] The invention belongs to the technical field of artificial board coating, and in particular relates to a process for processing multi-color patterns on a board by using oil-based paint. Background Art

[0002] Artificial board products have the characteristics of large format, uniform material, not easy to deform, good physical and mechanical properties and mechanical processing performance, etc. They are widely used in furniture manufacturing and interior decoration, and have become an important material in people's production and life. However, the plain boards made by various methods are limited by the processing technology, and the surface appearance is poor, which cannot give people a sense of beauty and is difficult to meet people's basic aesthetic requirements. Generally, plain boards of artificial boards need to be processed with veneer, decorative paper and other materials before they can be used as panel materials.

[0003] Existing multi-color patterned artificial board products usually use the method of spraying water-based paint to make patterns, but the spraying method will waste more paint, and the patterns made by the paint are poor in durability and cleanliness, which is difficult to meet current needs. Summary of the invention

[0004] Existing multi-color patterned artificial board products usually use spraying water-based paint to make patterns, but the spraying method will waste more paint, and the patterns made by the paint are poor in durability and cleanliness, which is difficult to meet current needs. The purpose of the present invention is to provide a process for processing multi-color patterns on a board using oil-based paint, which can solve the shortcomings of spraying, paint patterns and the singleness of patterns in the prior art.

[0005] The present invention is achieved by adopting the following technical solutions: A process for processing multi-color patterns on a plate using oil-based paint comprises the following steps: Step S1, forming an epoxy transition paint layer on the surface of the plate by roller coating; Step S2, providing a primer layer on the epoxy transition paint layer by roller coating with an oily primer; Step S3, decomposing the pattern according to the number of colors, and making corresponding multiple silk screen printing screens; Step S4, forming a multi-layer topcoat layer with multi-color patterns on the primer layer using an oily topcoat by silk screen printing and roller coating; Step S5, drying after roller coating, so as to obtain a plate with multi-color oil paint pattern.

[0006] Further preferably, in step S1, the thickness of the epoxy transition paint is 0.15 mm, which is used to firmly adhere the paint surface to the substrate and is not easy to fall off, and can resist corrosion from a variety of chemical substances. The total thickness of the paint layer is required to be 1.5-2 mm, wherein the ratio of the primer layer thickness to the topcoat layer thickness is about 1:(1.2-1.3), ensuring the uniformity of the topcoat layer and the firm bonding with the base layer to prevent falling off or cracking.

[0007] Preferably, the epoxy transition paint layer, primer layer and each topcoat layer are dried after roller coating, with a drying time of 2.5-3 minutes and a drying temperature of 62-68° C. The paint surface of each layer of oil paint is dried until the surface is dry before the next roller coating to prevent the paint surfaces of each layer from being stained with each other.

[0008] Further preferably, the primer layer and the multi-layer topcoat layer are arranged in order from light to dark. The color of the primer is light and has weak hiding power, and the color of the topcoat is getting darker and darker with strong hiding power. Because the light color cannot compete with the dark color, the lightest color is used as the primer, rather than the color with the largest area as the primer in traditional roller coating.

[0009] Further preferably, the raw materials of the primer layer include hydroxy acrylic resin, talcum powder, titanium dioxide, xylene, divalent acid ester, leveling agent and dispersant. The preparation method of the primer layer is: firstly stir the hydroxy acrylic resin, dispersant, talcum powder and titanium dioxide uniformly and then add other raw materials. Color paste is added to the raw materials of the primer layer to form a pattern base color.

[0010] Further preferably, the raw materials of each topcoat layer include hydroxy acrylic resin, dispersant, wax powder, matting powder, fluororesin, ultraviolet absorber, cellulose, aluminum paste, pearl powder, xylene, dibasic acid ester, ethyl acetate and leveling agent. Among them, aluminum paste can deepen the color of oily paint, pearl powder can make the color of oily paint lighter, and the color depth of topcoat can be adjusted by adjusting the ratio of aluminum paste and pearl powder. The purpose of adding aluminum paste and pearl powder in this application is to reflect the metal of the paint surface. The raw materials of the topcoat layer also include color paste, and the total mass of the aluminum paste, pearl powder and color paste is ≤16% of the mass of the topcoat layer. If the proportion of raw materials for controlling color exceeds 16%, the stability of oily paint will be affected. Among them, the preparation method of the topcoat layer is: first, stir and mix the hydroxy acrylic resin, dispersant, wax powder and matting powder to obtain mixture I for standby; mix aluminum paste, pearl powder, xylene and dibasic acid ester to obtain mixture II; then mix mixture I and mixture II with other raw materials to obtain oily topcoat.

[0011] More preferably, the amount of primer is 40-50g / m 2 The amount of topcoat is 60-70g / m 2Taking a three-color pattern (one layer of primer and two layers of topcoat) as an example, the amount of primer used is basically 40-50g / m 2 , the dosage of the remaining two topcoats is controlled at 30-35g respectively. If the pattern has more colors, the total amount of primer and topcoat is controlled within 120g, and the amount of primer is guaranteed to be about 40% of the total amount.

[0012] Further preferably, step S4 is specifically as follows: firstly, silk screen screen I is placed on the primer layer, and the oily paint roller of the first surface color is applied to the paint, and the silk screen screen I is removed and dried to obtain the first surface paint layer; silk screen screen II is placed on the first surface paint layer, and the oily paint roller of the second surface color is applied to the paint, and the silk screen screen II is removed and dried to obtain the second surface paint layer; and this is repeated multiple times to obtain a multi-color superimposed pattern.

[0013] Further preferably, in step S5, the drying is carried out by a six-stage temperature control method, and the temperatures are 47-50°C, 59-62°C, 65-67°C, 68-73°C, 62-64°C and 60-62°C, respectively, and the drying time for each stage is 35-40 min.

[0014] Among them, the purpose of the six-stage temperature control is to thoroughly dry the paint surface. The six-stage temperature control is respectively formed by six temperature areas in the folding drying furnace by 6 burners, among which area No. 1 is responsible for the heating stage, so that the paint is at the excitement point of the chemical reaction; areas No. 2 and No. 3 are responsible for the completion of the chemical reaction of the paint to achieve the purpose of controlling color difference; area No. 4 has the highest temperature, and is responsible for completely drying the paint surface without damaging the paint by high temperature; areas No. 5 and No. 6 are still responsible for the task of burner No. 4, and are also responsible for starting the cooling work, and the temperature decreases layer by layer; in addition, all burners have a floating value to eliminate moisture in the furnace and ensure that the humidity in the furnace is controlled within 6%. The present invention directly affects the smoothness of the paint surface through the above-mentioned temperature and humidity control.

[0015] The technical solution provided by the present invention has the following advantages compared with the prior art: 1) Compared with the traditional spraying process, roller coating can save 30% of oil-based paint, which has the advantage of saving raw materials.

[0016] 2) Oil-based paint is used to replace the coating in the prior art, and the multi-color pattern formed has the advantages of better weather resistance and cleaning resistance.

[0017] 3) Adding additives such as diluents to oil-based paint can improve problems such as high viscosity of oil-based paint, making it more suitable for roller coating process.

[0018] 4) The present invention adopts a special combination sequence of primer and topcoat, and the pattern formed has better covering power and layering, and prevents color from staining each other.

[0019] 5) Additives with different properties can be added to the topcoat to give the final product different effects and increase the application scenarios of the process.

[0020] 6) After roller coating, a six-stage temperature-controlled drying method is adopted. The color difference and glossiness of the paint surface can be controlled by controlling the temperature and humidity.

[0021] The present invention is reasonably designed and proposes for the first time to use a roller coating oil paint process to process multi-color patterns on a plate. Compared with traditional plate processing technologies such as paint spraying, the present invention has broad application scenarios and advantages and has good practical application value. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned objectives, features and advantages of the present invention, the scheme of the present invention will be further described below. It should be noted that the embodiments of the present invention and the features in the embodiments can be combined with each other without conflict.

[0023] In the description, it should be noted that the terms "first" and "second" are only used for descriptive purposes and should not be understood as indicating or implying relative importance. It should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two elements. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0024] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0025] The specific embodiments of the present invention are described in detail below. Example 1

[0026] A process for processing multi-color patterns on a plate using oil-based paint comprises the following steps: Step S1, process, polish and clean the board substrate to keep the board surface clean, place the board in a roller coater, use epoxy paint to form a layer of epoxy transition paint on the board surface, and then send the board into a leveling drying furnace (35m), set the temperature to 65°C, and the conveying speed to 12m / min, so that the epoxy paint is cured and dried on the board surface. The purpose of the epoxy sealing paint is to increase the adhesion of the subsequent oil paint to the board.

[0027] Step S2, after curing and drying, the plate is conveyed to the second roller coating machine, and the oily primer is applied to the epoxy transition paint layer by roller coating; the formula (mass percentage) of the primer in this embodiment is: 45% of hydroxyl acrylic resin AC-1016, 0.7% of HX-4030 dispersant, 16% of 1250 mesh talc, 25% of titanium dioxide 996, 3% of xylene, 9.8% of dibasic acid ester (DBE), and 0.5% of HX-3140 leveling agent; preparation method: first stir the hydroxyl acrylic resin, dispersant (0.2%), talc and titanium dioxide for 30 minutes, and then mix with xylene, dibasic acid ester, leveling agent and dispersant (0.5%).

[0028] The viscosity of the primer in this embodiment is 62s (coating No. 4 cup). After adjustment, it can be injected into the roller coater after aging for 15 minutes. After injection, the coating amount on the left and right is adjusted to be consistent by weighing, and the coating amount is controlled to be 42g / m 2 , adjust the working height to 6mm, ensure that there is no missing coating after coating, use single reverse roller coating, reverse roller speed is 24m / min, steel roller speed is 0.8m / min. After roller coating, send the plate into the leveling drying furnace (35m), set the temperature to 65℃, and the conveying speed is 12m / min to cure and dry the primer surface. The thickness of the primer layer in this embodiment is 0.87mm. The role of the primer is to cover the color of the plate itself and provide a base color for subsequent products.

[0029] Step S3, decomposing the pattern to be produced according to the number of colors, and producing a corresponding plurality of silk screen printing plates, that is, each silk screen printing plate corresponds to one color.

[0030] Step S4, placing the silk screen I with the first color pattern on the primer layer, injecting the oily topcoat of the first surface color into the roller coater for roller coating, removing the silk screen I after roller coating, and sending it into a leveling drying furnace (35m), setting the temperature to 65°C and the conveying speed to 12m / min, so that the surface of the first topcoat layer is cured and dried; then placing the printing screen II on the first topcoat layer, roller coating the oily paint of the second surface color, removing the silk screen II after roller coating and drying (same as above) to obtain the second topcoat layer; placing the printing screen III on the second topcoat layer, roller coating the oily paint of the third surface color, removing the silk screen III after roller coating and drying (same as above) to obtain the third topcoat layer, and finally obtaining a three-color superimposed pattern.

[0031] The formula of each layer of the topcoat in this embodiment is: hydroxy acrylic resin AC-1016 35%, HX-4030 dispersant 1%, 9610F wax powder 0.5%, 540L matting powder 0.5%, fluororesin JF-3X 25%, UV absorber UV-531 1%, CAB-381-0.5 Eastman fiber 3.5%, aluminum paste FZ-D-120 10%, pearl powder 5%, color paste 1%, xylene 8%, dibasic acid ester (DBE) 5%, ethyl acetate 4%, HX-3140 leveling agent 0.5%; preparation method: first, hydroxy acrylic resin, dispersant (0.5%), wax powder and matting powder are stirred and mixed for 30 minutes to obtain a mixture I for standby; aluminum paste, pearl powder, color paste, xylene and dibasic acid ester are mixed to obtain a mixture II for standby; mixture I and mixture II are mixed with fluororesin, UV absorber, cellulose, leveling agent and dispersant (0.5%) to obtain an oily topcoat.

[0032] The order of roller coating of oily primer and oily topcoat is set from light to dark. In this embodiment, the total thickness of the paint surface layer is 2mm, the thickness of the primer layer is 0.87mm, the thickness of the topcoat layer is 1.13mm, and the thickness ratio of the primer layer to the topcoat layer is 1:1.3. The viscosity of the topcoat is 95s (coating cup No. 4). After mixing and modulating, it needs to be matured for 15 minutes before being injected into the roller coating machine for use; after injection, the coating amount on the left and right is adjusted by weighing, and the coating amount is controlled to be 85g / m 2 , small board weight is 9.2g / 0.1m 2 , adjust the working height to 6mm to ensure that there is no missing coating after coating, use single reverse roller coating, the reverse roller speed is 24m / min, and the steel roller speed is 0.8m / min.

[0033] Step S5, sending the above-mentioned roller-dried plate into two 80m long folding drying furnaces for drying. There are 6 burners in the drying furnace, and six-stage temperature control is performed on it. The six temperatures are 48℃, 60℃, 66℃, 70℃, 64℃ and 61℃ respectively. The drying time of each stage is 35-40min, and a plate with multi-color oil paint pattern can be obtained. Example 2

[0034] A process for processing multi-color patterns on a plate using oil-based paint comprises the following steps: Step S1: Process, polish and clean the board substrate to keep the board surface clean, place the board in a roller coating machine, use epoxy paint to form a layer of epoxy transition paint on the board surface, and then send the board into a leveling drying furnace (35m), set the temperature to 65°C, and the conveying speed to 12m / min, so that the epoxy paint is cured and dried on the board surface. The purpose of the epoxy transition paint is to increase the adhesion of the subsequent oil paint to the board.

[0035] Step S2: The cured and dried plate is transported to a second roller coating machine, and the oily primer is coated on the epoxy transition paint layer by roller coating.

[0036] The formula (mass percentage) of the primer in this embodiment is: 45% of hydroxy acrylic resin AC-1016, 0.7% of HX-4030 dispersant, 16% of 1250 mesh talc, 24% of titanium dioxide 996, 1% of color paste, 3% of xylene, 9.8% of dibasic acid ester (DBE), and 0.5% of HX-3140 leveling agent. Preparation method: First, stir hydroxy acrylic resin, dispersant (0.2%), talc, titanium dioxide and color paste (the color is determined according to the actual situation) for 30 minutes, and then mix with xylene, dibasic acid ester, leveling agent and dispersant (0.5%).

[0037] The viscosity of the primer in this embodiment is 62s (coating No. 4 cup). After adjustment, it can be injected into the roller coater after aging for 15 minutes. After injection, the coating amount on the left and right is adjusted to be consistent by weighing, and the coating amount is controlled to be 42g / m 2 , adjust the working height to 6mm, ensure that there is no missing coating after coating, use single reverse roller coating, reverse roller speed is 24m / min, steel roller speed is 0.8m / min. After roller coating, send the plate into the leveling drying furnace (35m), set the temperature to 65℃, and the conveying speed is 12m / min to cure and dry the primer surface. The thickness of the primer layer in this embodiment is 0.68mm. The role of the primer is to cover the color of the plate itself and provide a base color for subsequent products.

[0038] Step S3, decomposing the pattern to be produced according to the number of colors, and producing a corresponding plurality of silk screen printing plates, that is, each silk screen printing plate corresponds to one color.

[0039] Step S4, placing the silk screen I with the first color pattern on the primer layer, injecting the oily topcoat of the first surface color into the roller coater for roller coating, removing the silk screen I after roller coating, and sending it into a leveling drying furnace (35m), setting the temperature to 65°C and the conveying speed to 12m / min, so that the surface of the first topcoat layer is cured and dried; then placing the printing screen II on the first topcoat layer, roller coating the oily paint of the second surface color, removing the silk screen II after roller coating and drying (same as above) to obtain the second topcoat layer; then placing the printing screen III on the second topcoat layer, roller coating the oily paint of the third surface color, removing the silk screen III after roller coating and drying (same as above) to obtain the third topcoat layer, and finally obtaining a three-color superimposed pattern.

[0040] The formula of each topcoat layer in this embodiment is: hydroxy acrylic resin AC-1016 35%, HX-4030 dispersant 1%, 9610F wax powder 0.5%, 540L matting powder 0.5%, fluororesin JF-3X 25%, ultraviolet absorber UV-531 1%, CAB-381-0.5 Eastman fiber 3.5%, aluminum silver paste FZ-D-120 10%, pearl powder 5%, color paste (different color color paste is used for different surface layers) 1%, xylene 8%, divalent acid ester (DBE) 5%, ethyl acetate 4%, HX-3140 leveling agent 0.5%. Preparation method: First, stir and mix hydroxy acrylic resin, dispersant (0.5%), wax powder and matting powder for 30 minutes to obtain mixture I for use; mix aluminum silver paste, pearl powder, color paste, xylene and divalent acid ester to obtain mixture II for use; mix mixture I and mixture II with fluororesin, ultraviolet absorber, cellulose, leveling agent and dispersant (0.5%) to obtain oily topcoat. Note: The roller coating order of oily primer and oily topcoat should be set from light to dark in color.

[0041] In this embodiment, the total thickness of the paint layer is 1.5mm, the thickness of the primer layer is 0.68mm, the thickness of the topcoat layer is 0.82mm, and the ratio of the primer layer to the topcoat layer is 1:1.2. The viscosity of the topcoat is 95s (coating cup No. 4). After mixing and preparing, it needs to be matured for 15 minutes before being injected into the roller coating machine for use; after injection, the coating amount on the left and right is adjusted by weighing, and the coating amount is controlled to be 85g / m 2 , small board weight is 9.2g / 0.1m 2 , adjust the working height to 6mm to ensure that there is no missing coating after coating, use single reverse roller coating, the reverse roller speed is 24m / min, and the steel roller speed is 0.8m / min.

[0042] Step S5, sending the above-mentioned roller-dried plate into two 80m long folding drying furnaces for drying. There are 6 burners in the drying furnace, and six-stage temperature control is performed on it. The six temperatures are 50℃, 60℃, 66℃, 71℃, 63℃ and 62℃ respectively. The drying time of each stage is 35-40min, and a plate with multi-color oil paint pattern can be obtained.

[0043] The above is only a specific implementation of the present invention, which enables those skilled in the art to understand or implement the present invention. Although detailed descriptions are given with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments, and they should all be covered by the protection scope of the claims.

Claims

1. A process for processing multi-color patterns on a plate using oil-based paint, characterized in that: The steps include: Step S1, forming an epoxy transition paint layer on the surface of the plate by roller coating; Step S2, providing a primer layer on the epoxy transition paint layer by roller coating with an oily primer; Step S3, decomposing the pattern according to the number of colors, and making corresponding multiple silk screen printing screens; Step S4, forming a multi-layer topcoat layer with multi-color patterns on the primer layer using an oily topcoat by silk screen printing and roller coating; Step S5, drying after roller coating, so as to obtain a plate with multi-color oil paint pattern.

2. The process of processing multi-color patterns on a plate using oil-based paint according to claim 1, characterized in that: In step S1, the thickness of the epoxy transition paint is 0.15 mm.

3. The process of processing multi-color patterns on a plate using oil-based paint according to claim 1 or 2, characterized in that: The epoxy transition paint layer, primer layer and each topcoat layer are dried after roller coating, with a drying time of 2.5-3 minutes and a drying temperature of 62-68°C.

4. The process for processing multi-color patterns on a plate using oil-based paint according to claim 3, characterized in that: The primer layer and the multi-layer topcoat layer are applied in order from lightest to darkest color.

5. The process for processing multi-color patterns on a plate using oil-based paint according to claim 4, characterized in that: The raw materials of the primer layer include hydroxy acrylic resin, talcum powder, titanium dioxide, xylene, dibasic acid ester, leveling agent and dispersant.

6. The process for processing multi-color patterns on a plate using oil-based paint according to claim 5, characterized in that: The preparation method of the primer layer is: firstly, the hydroxy acrylic resin, the dispersant, the talcum powder and the titanium dioxide are uniformly stirred and then other raw materials are added.

7. The process for processing multi-color patterns on a plate using oil-based paint according to claim 6, characterized in that: Color paste is added to the raw materials of the primer layer to form a pattern base color.

8. The process of processing multi-color patterns on a plate using oil-based paint according to claim 7, characterized in that: The raw materials of each layer of topcoat include hydroxy acrylic resin, dispersant, wax powder, matting powder, fluororesin, ultraviolet absorber, cellulose, aluminum silver paste, pearl powder, xylene, divalent ester, ethyl acetate and leveling agent.

9. The process for processing multi-color patterns on a plate using oil-based paint according to claim 8, characterized in that: The raw materials of the topcoat layer also include color paste, and the total mass of the aluminum silver paste, pearl powder and color paste is ≤16% of the mass of the topcoat layer.

10. The process of processing multi-color patterns on a plate using oil-based paint according to claim 9, characterized in that: The preparation method of the topcoat layer is as follows: firstly, hydroxy acrylic resin, dispersant, wax powder and matting powder are stirred and mixed to obtain mixture I for standby use; aluminum silver paste, pearl powder, xylene and divalent acid ester are mixed to obtain mixture II; then mixture I and mixture II are mixed with other raw materials to obtain oily topcoat.

11. The process for processing multi-color patterns on a plate using oil-based paint according to claim 10, characterized in that: The amount of primer is 40-50g / m 2 The total amount of multi-layer topcoat is 60-70g / m 2 .

12. The process for processing multi-color patterns on a plate using oil-based paint according to claim 11, characterized in that: Step S4 is specifically as follows: firstly, silk screen printing screen I is placed on the primer layer, and the first surface color is painted with an oily paint roller, and the silk screen printing screen I is removed and dried to obtain the first surface paint layer; silk screen printing screen II is placed on the first surface paint layer, and the second surface color is painted with an oily paint roller, and the silk screen printing screen II is removed and dried to obtain the second surface paint layer; and this is repeated many times to obtain a multi-color superimposed pattern.

13. The process for processing multi-color patterns on a plate using oil-based paint according to claim 12, characterized in that: In step S5, the drying is carried out by a six-stage temperature control method, wherein the temperatures are 47-50°C, 59-62°C, 65-67°C, 68-73°C, 62-64°C and 60-62°C, respectively, and the drying time of each stage is 35-40 minutes.

14. The process for processing multi-color patterns on a plate using oil-based paint according to claim 13, characterized in that: In step S5, the drying is carried out in a folding drying oven to ensure that the humidity in the oven is controlled within 6%.

15. The process for processing multi-color patterns on a plate using oil-based paint according to claim 5, characterized in that: The formula of the primer layer according to mass percentage is: hydroxy acrylic resin AC-1016 45%, HX-4030 dispersant 0.7%, 1250 mesh talc 16%, titanium dioxide 996 25%, xylene 3%, dibasic acid ester 9.8%, HX-3140 leveling agent 0.5%; Preparation method: First stir hydroxy acrylic resin, 0.2% dispersant, talcum powder and titanium dioxide for 30 minutes, then mix with xylene, dibasic acid ester, leveling agent and 0.5% dispersant.

16. The process for processing multi-color patterns on a plate using oil-based paint according to claim 7, characterized in that: The formula of the primer layer according to mass percentage is: hydroxy acrylic resin AC-1016 45%, HX-4030 dispersant 0.7%, 1250 mesh talc 16%, titanium dioxide 996 24%, color paste 1%, xylene 3%, dibasic acid ester 9.8%, HX-3140 leveling agent 0.5%; Preparation method: First stir hydroxy acrylic resin, 0.2% dispersant, talcum powder, titanium dioxide and color paste for 30 minutes, then mix with xylene, dibasic acid ester, leveling agent and 0.5% dispersant.

17. The process for processing multi-color patterns on a plate using oil-based paint according to claim 9, characterized in that: The formula of each layer of topcoat is: hydroxy acrylic resin AC-1016 35%, HX-4030 dispersant 1%, 9610F wax powder 0.5%, 540L matting powder 0.5%, fluororesin JF-3X 25%, UV absorber UV-531 1%, CAB-381-0.5 Eastman fiber 3.5%, aluminum silver paste FZ-D-120 10%, pearl powder 5%, color paste 1%, xylene 8%, divalent acid ester 5%, ethyl acetate 4%, HX-3140 leveling agent 0.5%; Preparation method: First, stir and mix hydroxy acrylic resin, 0.5% dispersant, wax powder and matting powder for 30 minutes to obtain mixture I for use; mix aluminum paste, pearl powder, color paste, xylene and divalent acid ester to obtain mixture II for use; mix mixture I and mixture II with fluororesin, ultraviolet absorber, cellulose, leveling agent and 0.5% dispersant to obtain an oily topcoat.

18. The process for processing multi-color patterns on a plate using oil-based paint according to claim 1, characterized in that: The total thickness of the paint layer is 1.5-2mm, of which the ratio of the primer layer thickness to the topcoat layer thickness is 1:(1.2-1.3).