Oily colored paint composition and application thereof

Abstract

The present invention relates to the technical field of coating, and discloses an oily colored paint composition, which comprises: an oily resin, specifically a combination of an acrylic resin, an alkyd resin, a polyurethane resin and an epoxy resin; the pigment is specifically a combination of an inorganic pigment, an organic pigment and a metal pigment; the solvent is specifically a combination of an aromatic hydrocarbon solvent, an aliphatic hydrocarbon solvent, an ester solvent and a ketone solvent; the additive is specifically a combination of an anti-ultraviolet agent, an antioxidant and a wear-resistant agent. The oily colored paint composition has wide application fields, including building exterior wall coating, automobile body coating, furniture surface coating, mechanical equipment anti-corrosion coating and artwork decoration coating. According to the method, the agglomeration or precipitation phenomenon of the aluminum powder in the coating process is effectively prevented, so that the problem of color difference spots caused by construction defects of the floating coating is remarkably reduced, the complexity and low efficiency of a traditional abrasive paper polishing method are avoided, and the integrity and the performance of the coating are not damaged.

Description

Technical Field

[0001] The invention relates to the technical field of coating, in particular to an oily paint composition and application thereof. Background Art

[0002] Oil-based paint is a common coating widely used in many fields such as architecture, automobiles, furniture, etc. Its good adhesion, wear resistance and bright colors make it occupy a place in the market. Traditional oil-based paint compositions are usually composed of multiple components such as pigments, resins, solvents and additives. These components are mixed together through specific proportions and processes to form a coating with specific performance and application characteristics.

[0003] After searching, the Chinese patent number CN117624979A discloses an oily paint composition and its application. Specifically, the composition can be used to eliminate or improve color difference spots, and is particularly suitable for the problem of color difference spots when spraying oily aluminum powder paint on the position where the middle coating operation is defective after the middle coating of the 3C2B process. The oily paint composition includes at least aluminum powder and ethylene-vinyl acetate copolymer wax (EVA wax), wherein the content of the EVA wax is 80%-150% based on the weight of the aluminum powder. The oily paint composition provided by the present invention can solve the problem caused by sandpaper polishing spots after oily pure aluminum powder baking paint; reduce process steps, reduce paint consumption, and improve production efficiency.

[0004] The above-mentioned oily paint composition introduces ethylene-vinyl acetate copolymer wax to wrap the surface of aluminum powder particles to prevent aluminum powder from agglomerating or precipitating during the coating process. However, in actual use, the color difference spots caused by the construction defects of the middle coating are particularly significant after spraying the oily aluminum paint, and the traditional sandpaper polishing method is difficult to effectively remove or reduce. Secondly, sandpaper polishing not only increases the process steps, but also increases the production cost, and may also destroy the integrity of the coating and affect the coating performance. Based on this, the present invention designs an oily paint composition and its application to solve the above problems. Summary of the invention

[0005] The purpose of the present invention is to provide an oil-based paint composition and application thereof, which solves the problems of color difference spots and inconvenience of sandpaper polishing in the background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: An oily paint composition comprises: an oily resin: the oily resin is used as a base material and accounts for 30% of the total weight of the composition, specifically a combination of acrylic resin, alkyd resin, polyurethane resin and epoxy resin, and the ratio is 5:1:1:1.2; a pigment, the pigment is used to give color to the paint and the pigment accounts for 25% of the total weight of the composition, specifically a combination of inorganic pigment, organic pigment and metal pigment, and the ratio is 2:1:3; a solvent, the solvent is used to adjust the fluidity and drying speed of the paint, the solvent accounts for 35% of the total weight of the composition, specifically a combination of aromatic hydrocarbon solvent, aliphatic hydrocarbon solvent, ester solvent and ketone solvent, and the ratio is 1:3:3:4; wherein the aromatic hydrocarbon solvent is selected from toluene and xylene, the aliphatic hydrocarbon solvent is selected from n-hexane and cyclohexane, the ester solvent is selected from ethyl acetate and butyl acetate, and the ketone solvent is selected from acetone and methyl ethyl ketone; an additive, the additive is used to improve the performance of the paint, the additive accounts for 10% of the total weight of the composition, and specifically a combination of an anti-ultraviolet agent, an antioxidant and an anti-wear agent, and the ratio is 1:2:4.

[0007] Preferably, the anti-ultraviolet agent is selected from benzophenone, benzotriazole or hindered amine compounds, the antioxidant is selected from phenol, amine or thioester compounds, and the wear-resistant agent is selected from silane coupling agent, titanate coupling agent or aluminate coupling agent.

[0008] Preferably, a method for preparing an oil-based paint composition is provided, comprising the following steps: Step S1, accurately weighing the oily resin, pigment, solvent and additive according to the ratio described in claim 1; Step S2, pre-mixing, adding the oily resin, part of the solvent and the additive into a mixing container, and performing preliminary stirring to ensure that the components are initially dispersed evenly; Step S3, grinding and dispersing, mixing the pigment with the remaining solvent, slowly adding it to the pre-mixed liquid, and grinding and dispersing it using a high-speed disperser or a ball mill until the pigment particles reach the required fineness; Step S4, adjusting the viscosity, according to actual needs, adding a proper amount of thickener or diluent to adjust the viscosity of the paint to achieve ideal construction performance; Step S5, filtering, removing the paint through a filtering device Impurities and unevenly dispersed particles in the paint are removed to ensure the purity and construction effect of the paint; step S6, quality inspection, performance tests are performed on the prepared oil-based paint, including but not limited to viscosity, drying time, color consistency, adhesion and wear resistance, to ensure that the product meets the quality standards; step S7, packaging and storage, the qualified oil-based paint is placed in a special container, sealed and stored, away from direct sunlight and high temperature environment, to ensure stable product quality; step S8, aging test, the packaged oil-based paint is placed in a simulated accelerated aging environment to test its stability under extreme conditions to ensure that the product can still maintain excellent physical and chemical properties during long-term use.

[0009] Preferably, the acrylic resin in the oily resin composition is methyl methacrylate-butyl acrylate-acrylic acid copolymer resin, the weight proportion of which in the oily resin composition is 2.5%-3.5%, and the acid value of the acrylic resin is controlled within the range of 5070 mg KOH / g.

[0010] Preferably, the inorganic pigment in the pigment combination is selected from one or more of titanium dioxide, red iron oxide or ultramarine blue, which is used to provide basic color tone and hiding power; the organic pigment is selected from phthalocyanine blue, phthalocyanine green or azo pigment to increase the vividness and saturation of the color; the metallic pigment is aluminum powder or copper powder, which is used to produce a metallic luster effect, and the surface of the metallic pigment is specially treated to enhance its dispersibility and corrosion resistance in the oily resin.

[0011] Preferably, the additive further comprises an anti-settling agent selected from fumed silica, organic bentonite or polyamide wax, accounting for 0.5%-1.5% of the total weight of the composition, for preventing the pigment from settling during storage.

[0012] Preferably, in step S2, the amount of the partial solvent is 40%-60% of the total solvent amount, and the additives include at least an anti-ultraviolet agent and an antioxidant, and the order of adding them is first adding the anti-ultraviolet agent for preliminary dispersion, and then adding the antioxidant to maximize their respective effectiveness.

[0013] Preferably, in step S3, the pigment and the remaining solvent are pre-treated by a high-speed shear mixer to promote initial wetting and dispersion of the pigment particles and reduce subsequent grinding time.

[0014] Preferably, in step S4, the thickener is selected from hydroxyethyl cellulose, polyurethane thickener or organic bentonite, and the added amount is adjusted according to the required viscosity, and continuous stirring is required during the adjustment process to ensure that the thickener is evenly dispersed in the paint to avoid uneven performance due to excessive local concentration.

[0015] Preferably, based on an oily paint composition, the application includes building exterior wall coating, automobile body coating, furniture surface coating, mechanical equipment anti-corrosion coating and artwork decorative coating; according to different specific application fields, the types and proportions of oily resins, pigments, solvents and additives can be adjusted to meet the specific requirements of different coating objects for the weather resistance, corrosion resistance, hardness, glossiness, color vividness and environmental protection performance of the paint. Compared with the prior art, the beneficial effects achieved by the present invention are: 1. The present invention, by introducing ethylene-vinyl acetate copolymer wax to wrap the surface of aluminum powder particles, effectively prevents the agglomeration or precipitation of aluminum powder during the coating process, thereby significantly reducing the color difference problem caused by defects in the construction of the middle coating; the present invention not only improves the uniformity and aesthetics of the coating effect, but also avoids the cumbersomeness and inefficiency of the traditional sandpaper polishing method, reduces the production cost, and at the same time ensures that the integrity and performance of the coating are not damaged.

[0016] 2. In the present invention, the oily paint composition achieves optimization of the paint's weather resistance, corrosion resistance, hardness, glossiness, color vividness, environmental protection performance and other aspects by pre-setting the types and proportions of the oily resin, pigment, solvent and additives. This improvement in comprehensive performance enables the paint of the present invention to meet various specific needs in different coating fields.

[0017] 3. The oil-based paint composition of the present invention has a wide range of applications, including building exterior wall coating, automobile body coating, furniture surface coating, mechanical equipment anti-corrosion coating, and artwork decorative coating, etc. This wide applicability not only meets the diverse coating needs in the market, but also enhances the market competitiveness of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The content of the oily paint composition of the present invention; Figure 2 The present invention is a flow chart of the preparation of the oil-based paint composition; Figure 3 It is an application diagram of the oily paint composition of the present invention. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1; In an embodiment of the present invention, an oil-based paint composition comprises: Oleoresin: Oleoresin is used as a base material and accounts for 30% of the total weight of the composition, specifically a combination of acrylic resin, alkyd resin, polyurethane resin and epoxy resin, with a ratio of 5:1:1:1.2; Pigments, pigments are used to give color to the paint and the pigments account for 25% of the total weight of the composition, specifically a combination of inorganic pigments, organic pigments and metallic pigments, in a ratio of 2:1:3; solvents, solvents are used to adjust the fluidity and drying speed of the paint, and the solvents account for 35% of the total weight of the composition, specifically a combination of aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents, ester solvents and ketone solvents, in a ratio of 1:3:3:4; wherein the aromatic hydrocarbon solvent is selected from toluene and xylene, the aliphatic hydrocarbon solvent is selected from n-hexane and cyclohexane, the ester solvent is selected from ethyl acetate and butyl acetate, and the ketone solvent is selected from acetone and methyl ethyl ketone; additives, additives are used to improve the performance of the paint, and the additives account for 10% of the total weight of the composition, specifically a combination of UV inhibitors, antioxidants and wear resistors, in a ratio of 1:2:4.

[0021] The anti-ultraviolet agent is selected from benzophenone, benzotriazole or hindered amine compounds, the antioxidant is selected from phenol, amine or thioester compounds, and the wear-resistant agent is selected from silane coupling agent, titanate coupling agent or aluminate coupling agent.

[0022] The working principle of the embodiment of the present invention is: the oily resin is used as the base material, and the oily resin occupies 30% of the total weight of the composition. These resins provide the main structure of the paint and determine its physical properties such as adhesion, hardness, glossiness, etc. The combination of different resins can optimize these properties to meet specific application requirements.

[0023] Pigments are used to give paint color, accounting for 25% of the total weight of the composition. The combination of inorganic pigments, organic pigments and metallic pigments can create rich color effects. These pigments are evenly dispersed in the resin base to ensure that the paint has uniform color and hiding power.

[0024] The solvent accounts for 35% of the total weight of the composition, and its main function is to adjust the fluidity and drying speed of the paint. The selection and proportion of the solvent have an important influence on the construction performance and drying time of the paint. Aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents, ester solvents and ketone solvents each have different volatility and solubility, and their combined use can optimize the fluidity and drying performance of the paint.

[0025] The additive accounts for 10% of the total weight of the composition and is used to improve the performance of the paint. The combined use of the UV inhibitor, antioxidant and wear-resistant agent can improve the weather resistance, oxidation resistance and wear resistance of the paint; the UV inhibitor can absorb or reflect ultraviolet rays to prevent the paint from aging; the antioxidant can inhibit the oxidation reaction in the paint and extend the service life; the wear-resistant agent can enhance the hardness of the paint surface and improve the wear resistance.

[0026] Embodiment 2; In an embodiment of the present invention, a method for preparing an oil-based paint composition is provided, comprising the following steps: Step S1, accurately weighing the oily resin, pigment, solvent and additive according to the ratio in claim 1; Step S2, pre-mixing, adding the oily resin, part of the solvent and the additive into a mixing container, and performing preliminary stirring to ensure that the components are initially dispersed uniformly; Step S3, grinding and dispersing, mixing the pigment with the remaining solvent, slowly adding it to the pre-mixed liquid, and grinding and dispersing it using a high-speed disperser or a ball mill until the pigment particles reach the required fineness; Step S4, adjusting the viscosity, according to actual needs, adding a proper amount of thickener or diluent to adjust the viscosity of the paint to achieve ideal construction performance; Step S5, filtering, removing the paint by filtering equipment impurities and unevenly dispersed particles to ensure the purity and construction effect of the paint; step S6, quality inspection, performance tests are performed on the prepared oil-based paint, including but not limited to viscosity, drying time, color consistency, adhesion and wear resistance, to ensure that the product meets the quality standards; step S7, packaging and storage, the qualified oil-based paint is packed into a special container, sealed and stored, avoiding direct sunlight and high temperature environment, to ensure stable product quality; step S8, aging test, the packaged oil-based paint is placed in a simulated accelerated aging environment to test its stability under extreme conditions, to ensure that the product can still maintain excellent physical and chemical properties during long-term use.

[0027] The acrylic resin in the oily resin composition is a methyl methacrylate-butyl acrylate-acrylic acid copolymer resin, and its weight proportion in the oily resin composition is 2.5%-3.5%, and the acid value of the acrylic resin is controlled within the range of 5070 mgKOH / g.

[0028] The inorganic pigment in the pigment combination is selected from one or more of titanium dioxide, red iron oxide or ultramarine blue to provide basic color tone and covering power; the organic pigment is selected from phthalocyanine blue, phthalocyanine green or azo pigment to increase the vividness and saturation of the color; the metallic pigment is aluminum powder or copper powder to produce a metallic luster effect, and the surface of the metallic pigment is specially treated to enhance its dispersibility and corrosion resistance in the oily resin.

[0029] The additives also include an anti-settling agent selected from fumed silica, organic bentonite or polyamide wax, accounting for 0.5%-1.5% of the total weight of the composition, for preventing the pigment from settling during storage.

[0030] In step S2, the amount of the partial solvent is 40%-60% of the total solvent amount, and the additives include at least an anti-ultraviolet agent and an antioxidant, and the order of adding the anti-ultraviolet agent is first added for preliminary dispersion, and then the antioxidant is added to maximize the effectiveness of each.

[0031] In step S3, the pigment and the remaining solvent are pre-treated by a high-speed shear mixer to promote initial wetting and dispersion of the pigment particles and reduce subsequent grinding time.

[0032] In step S4, the thickener is selected from hydroxyethyl cellulose, polyurethane thickener or organic bentonite, and the added amount is adjusted according to the required viscosity, and continuous stirring is required during the adjustment process to ensure that the thickener is evenly dispersed in the paint to avoid uneven performance due to excessive local concentration.

[0033] The working principle of the embodiment of the present invention is: in the initial stage of the preparation process (step S1), the oily resin, pigment, solvent and additive are first weighed according to the precise proportion. The selection and proportion control of acrylic resin (methyl methacrylate-butyl acrylate-acrylic acid copolymer resin, the weight ratio is between 2.5%-3.5%, and the acid value is controlled in the range of 50-70 mg KOH / g) has a direct impact on the hardness, glossiness and weather resistance of the paint.

[0034] In the pre-mixing step (step S2), the oleoresin, part of the solvent (accounting for 40%-60% of the total solvent) and the additives are added to the mixing container for preliminary stirring. The purpose of this step is to ensure that the components are initially dispersed evenly, laying a good foundation for the subsequent steps. The order of adding the anti-ultraviolet agent and the antioxidant is to first add the anti-ultraviolet agent for preliminary dispersion, and then add the antioxidant. This order can maximize the effectiveness of each and improve the weather resistance and antioxidant properties of the paint.

[0035] In the grinding and dispersing step (step S3), the pigment is mixed with the remaining solvent, then slowly added to the premixed liquid, and a high-speed disperser or ball mill is used for grinding and dispersing. The selection and proportion of the pigment have an important influence on the color, brightness and gloss of the paint. When mixing the pigment and the solvent, a high-speed shear mixer is used for pretreatment to promote the initial wetting and dispersion of the pigment particles, reduce the subsequent grinding time, and improve production efficiency.

[0036] In the viscosity adjustment step (step S4), according to actual needs, a thickener or diluent may be added in an appropriate amount to adjust the viscosity of the paint. The selection of thickener (hydroxyethyl cellulose, polyurethane thickener or organic bentonite) and the amount added have an important influence on the construction performance of the paint. During the adjustment process, continuous stirring is required to ensure that the thickener is evenly dispersed in the paint to avoid uneven performance due to excessive local concentration.

[0037] The filtering step (step S5) is to remove impurities and unevenly dispersed particles in the paint to ensure the purity and construction effect of the paint.

[0038] The quality inspection step (step S6) is to perform performance tests on the prepared oil-based paint, including viscosity, drying time, color consistency, adhesion and abrasion resistance, etc., to ensure that the product meets the quality standards.

[0039] In the packaging and storage step (step S7), the qualified oil-based paint is put into a special container, sealed and stored away from direct sunlight and high temperature environment to ensure stable product quality; in addition, an anti-settling agent (fumed silica, organic bentonite or polyamide wax) is added, accounting for 0.5%-1.5% of the total weight of the composition, to prevent the pigment from settling during storage.

[0040] The aging test step (step S8) is to place the packaged oil-based paint in a simulated accelerated aging environment to test its stability under extreme conditions. This step can ensure that the product can still maintain excellent physical and chemical properties during long-term use.

[0041] Embodiment 3; In the embodiment of the present invention, based on an oily paint composition, the application includes building exterior wall painting, automobile body painting, furniture surface painting, mechanical equipment anti-corrosion coating and artwork decorative coating; according to different specific application fields, the types and proportions of oily resins, pigments, solvents and additives can be adjusted to meet the specific requirements of different coating objects for the weather resistance, corrosion resistance, hardness, glossiness, color vividness and environmental protection performance of the paint.

[0042] The working principle of the embodiment of the present invention is as follows: in the coating of the exterior walls of buildings, the oil-based paint needs to have excellent weather resistance and corrosion resistance to resist wind and rain erosion and ultraviolet radiation. Therefore, acrylic resin or polyurethane resin with strong weather resistance will be selected as the main base material, and anti-ultraviolet agents and antioxidants will be added to enhance its durability; in the coating of automobile bodies, in addition to requiring the paint to have excellent weather resistance and corrosion resistance, it is also required to have high hardness and high gloss to show the luxury and texture of the vehicle. Therefore, epoxy resin or polyurethane resin with higher hardness may be used, and brighteners and wear-resistant agents may be added to improve gloss and wear resistance; in the coating of furniture surfaces, the paint needs to have In order to ensure the beauty and durability of furniture, it needs good adhesion and color brightness. Therefore, alkyd resin or acrylic resin with strong adhesion will be selected, and organic pigments and metallic pigments with high brightness will be added to enhance the color effect; in the anti-corrosion coating of mechanical equipment, the corrosion resistance and rust resistance of the paint are very important. Epoxy resin or polyurethane resin with excellent anti-corrosion performance is selected, and rust inhibitors and corrosion inhibitors are added to improve its anti-corrosion ability; in the decorative coating of artworks, the paint needs to have delicate colors and unique textures to show the unique charm of the artwork. At this time, a colorful combination of pigments will be selected, and special additives will be added to create a unique texture and visual effect.

[0043] Working principle: In terms of material selection, the oil-based paint composition is mainly composed of four major components: oily resin, pigment, solvent and additive. As a base material, oily resin provides the main structure of the paint and determines its physical properties such as adhesion, hardness, glossiness, etc. By carefully selecting different types of resins such as acrylic resin, alkyd resin, polyurethane resin and epoxy resin, and adjusting their proportions, the performance of the paint can be optimized to meet the needs of different coating objects; the choice of pigment determines the color and brightness of the paint, and the combination of inorganic pigments, organic pigments and metallic pigments can create rich color effects; the choice and proportion of solvents have an important influence on the construction performance and drying time of the paint. The combination of aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents, ester solvents and ketone solvents can optimize the fluidity and drying performance of the paint; the addition of additives further improves the performance of the paint, such as UV inhibitors, antioxidants and wear agents can improve the weather resistance, oxidation resistance and wear resistance of the paint.

[0044] In terms of preparation process, the embodiment of the present invention provides a complete preparation method of oil-based paint composition. First, weigh each component material according to a precise ratio to ensure the stability of the performance and quality of the paint; then, the oily resin, part of the solvent and the additive are preliminarily dispersed evenly through the premixing step to lay a good foundation for the subsequent steps; then, the pigment is slowly added to the premixed liquid after mixing with the remaining solvent, and a high-speed disperser or a ball mill is used for grinding and dispersion until the pigment particles reach the required fineness; in the viscosity adjustment step, a thickener or a diluent is added according to actual needs to adjust the viscosity of the paint to achieve ideal construction performance; the filtering step is used to remove impurities and unevenly dispersed particles in the paint to ensure the purity and construction effect of the paint; the quality inspection step performs a performance test on the prepared oil-based paint to ensure that the product meets the quality standards; finally, the qualified oil-based paint is placed in a special container for sealed storage, and an aging test is performed to verify its stability in long-term use.

[0045] In terms of application, the oily paint composition of the embodiment of the present invention has a wide range of application fields, including building exterior wall coating, automobile body coating, furniture surface coating, mechanical equipment anti-corrosion coating, and artwork decorative coating, etc. According to the needs of different application fields, the types and proportions of oily resins, pigments, solvents, and additives can be adjusted to meet the specific requirements of different coating objects for the weather resistance, corrosion resistance, hardness, glossiness, color vividness, and environmental protection performance of the paint.

[0046] Although the 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 alterations may be made to the embodiments without departing from the principles and spirit thereof, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An oily paint composition, characterized in that: include: Oleoresin: the oleoresin is used as a base material and accounts for 30% of the total weight of the composition, specifically a combination of acrylic resin, alkyd resin, polyurethane resin and epoxy resin, in a ratio of 5:1:1:1.2; Pigments, the pigments are used to impart color to the paint and the pigments account for 25% of the total weight of the composition, specifically a combination of inorganic pigments, organic pigments and metallic pigments in a ratio of 2:1:3; A solvent, the solvent is used to adjust the fluidity and drying speed of the paint, the solvent accounts for 35% of the total weight of the composition, specifically a combination of aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents, ester solvents and ketone solvents, the ratio of 1:3:3:4; wherein the aromatic hydrocarbon solvent is selected from toluene and xylene, the aliphatic hydrocarbon solvent is selected from n-hexane and cyclohexane, the ester solvent is selected from ethyl acetate and butyl acetate, and the ketone solvent is selected from acetone and methyl ethyl ketone; Additives are used to improve the performance of the paint, and the additives account for 10% of the total weight of the composition, specifically a combination of an anti-ultraviolet agent, an antioxidant and an anti-wear agent, with a ratio of 1:2:

4.

2. An oil-based paint composition according to claim 1, characterized in that: The anti-ultraviolet agent is selected from benzophenone, benzotriazole or hindered amine compounds, the antioxidant is selected from phenol, amine or thioester compounds, and the wear-resistant agent is selected from silane coupling agent, titanate coupling agent or aluminate coupling agent.

3. An oil-based paint composition according to claim 1, characterized in that: Provided is a method for preparing an oil-based paint composition, comprising the following steps: Step S1, accurately weighing the oleoresin, pigment, solvent and additive according to the ratio described in claim 1; Step S2, pre-mixing, adding the oleoresin, part of the solvent and the additive into a mixing container, and performing preliminary stirring to ensure that the components are initially dispersed uniformly; Step S3, grinding and dispersing, mixing the pigment with the remaining solvent, slowly adding it to the premixed liquid, and grinding and dispersing it using a high-speed disperser until the pigment particles reach the required fineness; Step S4, adjusting the viscosity. According to actual needs, a thickener may be added in an appropriate amount to adjust the viscosity of the paint to achieve ideal construction performance; Step S5, filtering, removing impurities and unevenly dispersed particles in the paint through filtering equipment to ensure the purity and construction effect of the paint; Step S6, quality inspection, performing performance tests on the prepared oil-based paint, including but not limited to viscosity, drying time, color consistency, adhesion and wear resistance, to ensure that the product meets the quality standards; Step S7, packaging and storage, the oil-based paint that has passed the inspection is packed into a special container, sealed and stored, away from direct sunlight and high temperature environment, to ensure stable product quality; Step S8, aging test, places the packaged oil-based paint in a simulated accelerated aging environment to test its stability under extreme conditions to ensure that the product can still maintain excellent physical and chemical properties during long-term use.

4. The oil-based paint composition according to claim 1, characterized in that: The acrylic resin in the oily resin composition is a methyl methacrylate-butyl acrylate-acrylic acid copolymer resin, the weight proportion of which in the oily resin composition is 2.5%-3.5%, and the acid value of the acrylic resin is controlled within the range of 5070 mg KOH / g.

5. The oil-based paint composition according to claim 1, characterized in that: The inorganic pigment in the pigment combination is selected from one or more of titanium dioxide, red iron oxide or ultramarine blue to provide basic color tone and covering power; the organic pigment is selected from phthalocyanine blue, phthalocyanine green or azo pigment to increase the vividness and saturation of the color; the metallic pigment is aluminum powder or copper powder to produce a metallic luster effect, and the surface of the metallic pigment is specially treated to enhance its dispersibility and corrosion resistance in the oily resin.

6. An oil-based paint composition according to claim 2, characterized in that: The additives also include an anti-settling agent selected from fumed silica, organic bentonite or polyamide wax, accounting for 0.5%-1.5% of the total weight of the composition, for preventing the pigment from settling during storage.

7. An oil-based paint composition according to claim 3, characterized in that: In step S2, the amount of the partial solvent is 40%-60% of the total solvent amount, and the additives include at least an anti-ultraviolet agent and an antioxidant, and the order of adding the anti-ultraviolet agent is first added for preliminary dispersion, and then the antioxidant is added to maximize the effectiveness of each.

8. An oil-based paint composition according to claim 3, characterized in that: In step S3, the pigment and the remaining solvent are pre-treated by a high-speed shear mixer to promote initial wetting and dispersion of the pigment particles and reduce subsequent grinding time.

9. An oil-based paint composition according to claim 3, characterized in that: In step S4, the thickener is selected from hydroxyethyl cellulose, polyurethane thickener or organic bentonite, and the added amount is adjusted according to the required viscosity, and continuous stirring is required during the adjustment process to ensure that the thickener is evenly dispersed in the paint to avoid uneven performance due to excessive local concentration.

10. Use of an oil-based paint composition according to any one of claims 1 to 9, characterized in that: Based on an oily paint composition, the application includes building exterior wall coating, automobile body coating, furniture surface coating, mechanical equipment anti-corrosion coating and artwork decorative coating; according to different specific application fields, the types and proportions of oily resins, pigments, solvents and additives can be adjusted to meet the specific requirements of different coating objects for the weather resistance, corrosion resistance, hardness, glossiness, color brightness and environmental protection performance of the paint.

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