Oil painting canvas and preparation method thereof

Abstract

The present application discloses an oil painting canvas and a preparation method thereof, belonging to the technical field of oil painting canvas. An oil painting canvas comprises a base fabric layer, a primer layer, a middle coat layer, a top coat layer and an ink absorbing layer arranged in sequence; the base fabric layer is pure cotton or polyester-cotton; the top coat layer contains natural Chinese medicines such as arecoline hydrobromide, borneol and camphor with bactericidal, antiviral and insect repellent properties, which ensure the beauty of the oil painting canvas while giving it mildew-proof, antibacterial and insect repellent functions, which is conducive to long-term storage and meets people's diverse needs.

Description

Technical Field

[0001] The present application relates to an oil painting canvas and a preparation method thereof, belonging to the technical field of oil painting canvas. Background Art

[0002] The production of oil canvas originated in Europe in the 15th century. Before the use of oil canvas, the main substrate for oil painting was walls or wooden boards. Compared with walls, wooden boards are a relatively flexible carrier, but they are inconvenient to make and carry, and they are also very difficult to preserve in the later stage. Then oil canvas made of canvas appeared. In the 16th century, with the expansion of hemp planting and the excellent properties of hemp fabrics, such as toughness, wear resistance and non-rottenness, oil canvas made of flax replaced canvas and became the mainstream. At the end of the 20th century, with the industrialization of oil canvas production, the material of mainstream oil canvas on the market changed to pure cotton, polyester-cotton, chemical fiber, cotton and linen, flax, etc., and it has continued to this day.

[0003] With the vigorous development of science and technology and the rich accumulation of humanistic consciousness, people's functional requirements for oil canvas are no longer limited to the appreciation level. In particular, people who like to collect have higher requirements for the storage stability of oil canvas. However, oil canvas is prone to breed bacteria and mildew in an environment with high humidity and large temperature difference. Over time, it will attract contamination and biting by pests, which not only affects the appearance, but also pollutes the indoor environment. Therefore, it is difficult to meet people's diverse needs for oil canvas. Summary of the invention

[0004] In order to solve the above problems, an oil painting canvas and a preparation method thereof are provided. The coating contains natural Chinese medicine with bactericidal, antiviral and insect repellent properties, which ensures the beauty of the oil painting canvas while giving it mildew-proof, antibacterial and insect repellent functions, is conducive to long-term storage, and meets people's diverse needs.

[0005] The present invention adopts the following technical solutions:

[0006] An oil painting canvas comprises a base fabric layer, a base coating layer, a middle coating layer, a top coating layer and an ink absorbing layer which are arranged in sequence;

[0007] The base fabric layer is pure cotton or polyester-cotton;

[0008] The primer layer is composed of the following components in parts by weight: 10-15 parts of titanium dioxide, 15-20 parts of calcium carbonate, 15-20 parts of talc, 1-1.5 parts of polyvinyl alcohol resin, 1-1.5 parts of arecoline hydrobromide, 20-25 parts of ethylene-vinyl acetate resin, 10-15 parts of butyl acrylate resin, 0.5-1 parts of associative acrylic thickener, 0.5-1 parts of ammonia water, 1.2-2.8 parts of auxiliary agent A, 15-20 parts of water and 0.5-1.5 parts of surfactant;

[0009] The middle coating layer is composed of the following components in parts by weight: 8-12 parts of titanium dioxide, 12-15 parts of calcium carbonate, 15-18 parts of kaolin, 1-1.5 parts of polyvinyl alcohol resin, 25-30 parts of ethylene-vinyl acetate resin, 10-15 parts of butyl acrylate resin, 1-2 parts of associative acrylic thickener, 0.5-1 parts of ammonia water, 1.5-3 parts of auxiliary agent A, 20-25 parts of water and 0.5-1.5 parts of surfactant;

[0010] The top coating layer is composed of the following components in parts by weight: 10-15 parts of titanium dioxide, 15-20 parts of calcium carbonate, 5-10 parts of kaolin, 0.5-2 parts of camphor, 1-2 parts of borneol, 0.5 parts of arecoline hydrobromide, 1-2 parts of silicon powder, 30-35 parts of ethylene-vinyl acetate resin, 5-10 parts of butyl acrylate resin, 15-20 parts of water, 2-4 parts of ethanol, 0.6-2.4 parts of auxiliary agent A and 0.5-1.5 parts of surfactant;

[0011] The ink-absorbing layer is composed of the following components in parts by weight: 10-15 parts of silicon powder, 25-30 parts of polyvinyl alcohol resin, 5-10 parts of ethylene-vinyl acetate resin, 3-5 parts of cationic acrylic resin, 5-8 parts of calcium carbonate, 0.3-0.5 parts of ethanol, 0.3-0.5 parts of glycerol, 1-2 parts of auxiliary agent B, 25-40 parts of water and 0.5-1 parts of surfactant.

[0012] Optionally, the base fabric layer is pure cotton fabric;

[0013] The primer layer is composed of the following components in parts by weight: 15 parts of titanium dioxide, 20 parts of calcium carbonate, 15 parts of talc, 1 part of polyvinyl alcohol resin, 1 part of arecoline hydrobromide, 20 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 0.5 parts of associative acrylic thickener, 0.5 parts of ammonia water, 2 parts of auxiliary agent A, 16 parts of water and 1 part of surfactant;

[0014] The middle coating layer is composed of the following components in parts by weight: 12 parts of titanium dioxide, 15 parts of calcium carbonate, 16 parts of kaolin, 1 part of polyvinyl alcohol resin, 25 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 1 part of associative acrylic thickener, 0.8 parts of ammonia water, 2.2 parts of auxiliary agent A, 21 parts of water and 1 part of surfactant;

[0015] The top coating layer is composed of the following components in parts by weight: 12 parts of titanium dioxide, 18 parts of calcium carbonate, 5 parts of kaolin, 1.2 parts of camphor, 1.5 parts of borneol, 0.5 parts of arecoline hydrobromide, 1.5 parts of silicon powder, 32 parts of ethylene-vinyl acetate resin, 8 parts of butyl acrylate resin, 20 parts of water, 3 parts of ethanol, 1.5 parts of auxiliary agent A and 1 part of surfactant;

[0016] The ink-absorbing layer is composed of the following components in parts by weight: 12 parts of silicon powder, 26 parts of polyvinyl alcohol resin, 10 parts of ethylene-vinyl acetate resin, 5 parts of cationic acrylic resin, 5 parts of calcium carbonate, 0.5 parts of ethanol, 0.3 parts of glycerol, 1.2 parts of auxiliary agent B, 38 parts of water and 0.8 parts of surfactant.

[0017] Optionally, the surfactant is polyether silicone oil or polyacrylic acid sodium salt.

[0018] Optionally, the auxiliary agent A is a polycarboxylate sodium salt dispersant, a polyether siloxane wetting agent, or a polyurethane leveling agent;

[0019] The auxiliary agent B is a polycarboxylate sodium salt dispersant and a polyether siloxane wetting agent.

[0020] Optionally, the camphor is natural camphor;

[0021] The borneol is natural borneol, and its purity is ≥96%;

[0022] The arecoline hydrobromide is a betel nut extract.

[0023] The method for preparing the oil painting canvas comprises the following steps:

[0024] (1) 10-15 parts by weight of titanium dioxide, 15-20 parts by weight of calcium carbonate, 15-20 parts by weight of talc, 1-1.5 parts by weight of polyvinyl alcohol resin, 1-1.5 parts by weight of arecoline hydrobromide, 20-25 parts by weight of ethylene-vinyl acetate resin, 10-15 parts by weight of butyl acrylate resin, 0.5-1 parts by weight of associative acrylic thickener, 0.5-1 parts by weight of ammonia water, 1.2-2.8 parts by weight of auxiliary agent A, 15-20 parts by weight of water and 0.5-1.5 parts by weight of a surfactant are mixed to obtain a primer coating, and then the primer coating is applied to the surface of the base fabric layer by blade coating, and dried to form a primer coating;

[0025] (2) 8-12 parts of titanium dioxide, 12-15 parts of calcium carbonate, 15-18 parts of kaolin, 1-1.5 parts of polyvinyl alcohol resin, 25-30 parts of ethylene-vinyl acetate resin, 10-15 parts of butyl acrylate resin, 1-2 parts of associative acrylic thickener, 0.5-1 part of ammonia water, 1.5-3 parts of auxiliary agent A, 20-25 parts of water and 0.5-1.5 parts of surfactant are mixed uniformly to obtain a mid-coat coating, and then the mid-coat coating is applied on the surface of the base coating by scraping, and dried to form a mid-coat coating;

[0026] (3) 10-15 parts of titanium dioxide, 15-20 parts of calcium carbonate, 5-10 parts of kaolin, 0.5-2 parts of camphor, 1-2 parts of borneol, 0.5 parts of arecoline hydrobromide, 1-2 parts of silicon powder, 30-35 parts of ethylene-vinyl acetate resin, 5-10 parts of butyl acrylate resin, 15-20 parts of water, 2-4 parts of ethanol, 0.6-2.4 parts of auxiliary agent A and 0.5-1.5 parts of surfactant are mixed uniformly to obtain a top coating, and then the top coating is applied on the surface of the middle coating by blade coating, and dried to form a top coating;

[0027] (4) 10-15 parts of silicon powder, 25-30 parts of polyvinyl alcohol resin, 5-10 parts of ethylene-vinyl acetate resin, 3-5 parts of cationic acrylic resin, 5-8 parts of calcium carbonate, 0.3-0.5 parts of ethanol, 0.3-0.5 parts of glycerol, 1-2 parts of auxiliary agent B, 25-40 parts of water and 0.5-1 part of surfactant are mixed uniformly to obtain an ink-absorbing layer coating, and then the ink-absorbing layer coating is applied to the surface of the top coating by means of a wire scraper roller coating, and an ink-absorbing layer is formed after drying to obtain an oil painting canvas.

[0028] Optionally, the preparation method of the top coating in step (3) specifically comprises the following steps: first, 10-15 parts of titanium dioxide, 15-20 parts of calcium carbonate, 5-10 parts of kaolin, 1-2 parts of silica powder, 30-35 parts of ethylene-vinyl acetate resin, 5-10 parts of butyl acrylate resin, 0.5 parts of arecoline hydrobromide, 15-20 parts of water, 0.6-2.4 parts of auxiliary agent A and 0.5-1.5 parts of surfactant are mixed evenly to obtain a mixture A, and then 0.5-2 parts of camphor, 1-2 parts of borneol and 2-4 parts of ethanol are mixed evenly to obtain a mixture B, and then the mixture B is added to the mixture A and stirred evenly to obtain the top coating.

[0029] Optionally, the base coating has a dry coating weight of 100-120 gsm;

[0030] The dry coating weight of the middle coating is 60-80gsm;

[0031] The top coating has a dry coating weight of 35-50 gsm;

[0032] The dry coating weight of the ink-receiving layer is 30-35 gsm.

[0033] Optionally, the drying temperature of the base coating is 100-120° C. and the drying time is 1-2 min;

[0034] The drying temperature of the middle coating is 100-120°C and the drying time is 1-2 minutes;

[0035] The drying temperature of the top coating is 60-80°C and the drying time is 1-2 minutes;

[0036] The drying temperature of the ink absorbing layer is 60-80° C. and the drying time is 1-2 minutes.

[0037] Optionally, the thickness of the primer layer is 40-50 μm;

[0038] The thickness of the middle coating is 20-30 μm;

[0039] The thickness of the top coating is 10-20 μm;

[0040] The thickness of the ink absorbing layer is 40-50 μm.

[0041] The beneficial effects of this application include but are not limited to:

[0042] 1. The oil painting canvas of the present application has a base fabric layer, a primer layer, a middle coating layer, a top coating layer and an ink-absorbing layer arranged in sequence. The selection of the base fabric layer meets the environmental protection requirements of natural fibers, and no harmful substances will appear in the later processing. By setting the primer layer and the middle coating layer, the strength of the base fabric layer is increased to meet the strength requirements of the oil painting canvas. The top coating layer adopts natural Chinese medicine with bactericidal, antiviral and insect repellent properties, which is more environmentally friendly. The ink-absorbing layer is convenient for daily hand-painting and inkjet printing, has good color rendering, and can be used for artwork reproduction, museum exhibitions and daily decoration, which greatly improves the application prospects of the oil painting canvas.

[0043] 2. The oil painting canvas of the present application has a surface coating layer containing camphor, borneol and arecoline hydrobromide. Camphor can eliminate indoor pests such as cockroaches, clothes moths, spiders, flies, fleas, mites, mosquitoes, etc., borneol can slowly sublimate and release, thereby inhibiting the growth of cold viruses and molds, and killing Staphylococcus aureus, beta-hemolytic streptococci, Escherichia coli and type 1 simplex herpes virus, and arecoline hydrobromide can paralyze pests. The three work synergistically to inhibit the growth of mixed molds (including Aspergillus niger, Penicillium, etc.) in humid environments, thereby extending the value preservation time of the oil painting canvas, making the oil painting canvas both ornamental and collectible, and meeting people's diverse needs.

[0044] 3. The preparation method of the oil painting canvas of the present application adjusts the weight ratio of each coating component, the coating process and parameters to obtain an oil painting canvas with excellent mildew-proof, antibacterial and insect-repellent effects, and its opacity is ≥ 98.5%. The preparation method of the oil painting canvas is simple, easy to operate, and environmentally friendly, and can be used for large-scale production. DETAILED DESCRIPTION

[0045] The endpoints and any values ​​of the ranges disclosed in this article are not limited to the precise ranges or values, and these ranges or values ​​should be understood to include values ​​close to these ranges or values. For numerical ranges, the endpoint values ​​of each range, the endpoint values ​​of each range and the individual point values, and the individual point values ​​can be combined with each other to obtain one or more new numerical ranges, which should be considered as specifically disclosed in this article.

[0046] If no specific conditions are specified in the examples, the experiments were carried out under conventional conditions or conditions recommended by the manufacturer. The raw materials or instruments used, if no manufacturer is specified, are all conventional products that can be purchased commercially.

[0047] Example 1

[0048] A method for preparing an oil painting canvas comprises the following steps:

[0049] (1) 15 parts of titanium dioxide, 20 parts of calcium carbonate, 15 parts of talc, 1 part of polyvinyl alcohol resin, 1 part of arecoline hydrobromide, 20 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 0.5 parts of associative acrylic thickener, 0.5 parts of ammonia water, 0.8 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 0.5 parts of polyurethane leveling agent, 16 parts of water and 1 part of polyether silicone oil were mixed uniformly by weight to obtain a primer coating, and then the primer coating was applied on the surface of pure cotton cloth (width 1.5 m, thickness 380 μm) by knife coating, with a coating dry weight of 110 gsm, and then dried at 110° C. for 1.5 min to form a primer coating with a thickness of 45 μm;

[0050] (2) 12 parts of titanium dioxide, 15 parts of calcium carbonate, 16 parts of kaolin, 1 part of polyvinyl alcohol resin, 25 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 1 part of associative acrylic thickener, 0.8 parts of ammonia water, 0.8 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 0.7 parts of polyurethane leveling agent, 21 parts of water and 1 part of polyether silicone oil were mixed uniformly to obtain a mid-coat coating, and then the mid-coat coating was applied on the surface of the base coating by knife coating, with a coating dry weight of 70 gsm, and then dried at 110° C. for 1.5 min to form a mid-coat coating with a thickness of 25 μm;

[0051] (3) First, 12 parts of titanium dioxide, 18 parts of calcium carbonate, 5 parts of kaolin, 1.5 parts of silica fume, 32 parts of ethylene-vinyl acetate resin, 8 parts of butyl acrylate resin, 0.5 parts of arecoline hydrobromide, 20 parts of water, 0.5 parts of polycarboxylic acid sodium salt dispersant, 0.5 parts of polyether siloxane wetting agent, 0.5 parts of polyurethane leveling agent and 1 part of polyether silicone oil are mixed uniformly to obtain a mixture A, and then 1.2 parts of natural camphor, 1.5 parts of natural borneol (purity ≥96%) and 3 parts of ethanol are mixed uniformly to obtain a mixture B, and then the mixture B is added to the mixture A and stirred uniformly to obtain a top coating, and then the top coating is applied to the surface of the middle coating by blade coating, with a coating dry weight of 45 gsm, and then dried at 70° C. for 1.5 min to form a top coating with a thickness of 15 μm;

[0052] (4) 12 parts of silicon powder, 26 parts of polyvinyl alcohol resin, 10 parts of ethylene-vinyl acetate resin, 5 parts of cationic acrylic resin, 5 parts of calcium carbonate, 0.5 parts of ethanol, 0.3 parts of glycerol, 0.5 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 38 parts of water and 0.8 parts of polyether silicone oil were mixed uniformly to obtain an ink-absorbing layer coating, and then the ink-absorbing layer coating was applied on the surface of the top coating by wire scraper roller coating, with a coating dry weight of 32 gsm, and then dried at 70°C for 1.5 minutes to form an ink-absorbing layer with a thickness of 45 μm to obtain an oil painting canvas.

[0053] Example 2

[0054] A method for preparing an oil painting canvas comprises the following steps:

[0055] (1) By weight, 12 parts of titanium dioxide, 18 parts of calcium carbonate, 17 parts of talc, 1.2 parts of polyvinyl alcohol resin, 1.5 parts of arecoline hydrobromide, 23 parts of ethylene-vinyl acetate resin, 12 parts of butyl acrylate resin, 0.8 parts of associative acrylic thickener, 0.7 parts of ammonia water, 0.6 parts of polycarboxylic acid sodium salt dispersant, 0.4 parts of polyether siloxane wetting agent, 0.2 parts of polyurethane leveling agent, 15 parts of water and 0.5 parts of polyacrylic acid sodium salt are mixed uniformly to obtain a primer coating, and then the primer coating is applied to the surface of a polyester-cotton cloth (width 1.5 m, thickness 350 μm) by knife coating, with a coating dry weight of 100 gsm, and then dried at 100° C. for 2 min to form a primer coating with a thickness of 50 μm;

[0056] (2) 10 parts of titanium dioxide, 14 parts of calcium carbonate, 15 parts of kaolin, 1.2 parts of polyvinyl alcohol resin, 28 parts of ethylene-vinyl acetate resin, 12 parts of butyl acrylate resin, 1.5 parts of associative acrylic thickener, 0.5 parts of ammonia water, 0.7 parts of polycarboxylic acid sodium salt dispersant, 0.5 parts of polyether siloxane wetting agent, 0.3 parts of polyurethane leveling agent, 20 parts of water and 0.5 parts of polyacrylic acid sodium salt were mixed uniformly to obtain a middle coating, and then the middle coating was applied on the surface of the base coating by knife coating, with a coating dry weight of 60 gsm, and then dried at 100° C. for 2 minutes to form a middle coating with a thickness of 30 μm;

[0057] (3) firstly, 10 parts of titanium dioxide, 15 parts of calcium carbonate, 8 parts of kaolin, 1 part of silica fume, 30 parts of ethylene-vinyl acetate resin, 5 parts of butyl acrylate resin, 0.5 parts of arecoline hydrobromide, 15 parts of water, 0.2 parts of polycarboxylic acid sodium salt dispersant, 0.2 parts of polyether siloxane wetting agent, 0.2 parts of polyurethane leveling agent and 0.5 parts of polyacrylic acid sodium salt are mixed uniformly to obtain a mixture A, then 0.5 parts of natural camphor, 1 part of natural borneol (purity ≥ 96%) and 2 parts of ethanol are mixed uniformly to obtain a mixture B, then the mixture B is added to the mixture A and stirred uniformly to obtain a top coating, and then the top coating is applied to the surface of the middle coating by blade coating, with a coating dry weight of 35 gsm, and then dried at 60° C. for 2 min to form a top coating with a thickness of 20 μm;

[0058] (4) 10 parts of silicon powder, 25 parts of polyvinyl alcohol resin, 5 parts of ethylene-vinyl acetate resin, 3 parts of cationic acrylic resin, 7 parts of calcium carbonate, 0.3 parts of ethanol, 0.4 parts of glycerol, 0.4 parts of polycarboxylic acid sodium salt dispersant, 0.6 parts of polyether siloxane wetting agent, 25 parts of water and 0.5 parts of polyacrylic acid sodium salt are mixed uniformly to obtain an ink-absorbing layer coating, and then the ink-absorbing layer coating is applied on the surface of the top coating by wire scraper roller coating, with a coating dry weight of 30 gsm, and then dried at 60°C for 2 minutes to form an ink-absorbing layer with a thickness of 50 μm to obtain an oil painting canvas.

[0059] Example 3

[0060] A method for preparing an oil painting canvas comprises the following steps:

[0061] (1) 10 parts of titanium dioxide, 15 parts of calcium carbonate, 20 parts of talc, 1.5 parts of polyvinyl alcohol resin, 1 part of arecoline hydrobromide, 25 parts of ethylene-vinyl acetate resin, 15 parts of butyl acrylate resin, 1 part of associative acrylic thickener, 1 part of ammonia water, 1.4 parts of polycarboxylic acid sodium salt dispersant, 0.8 parts of polyether siloxane wetting agent, 0.6 parts of polyurethane leveling agent, 20 parts of water and 1.5 parts of polyether silicone oil were mixed uniformly by weight to obtain a primer coating, and then the primer coating was applied to the surface of pure cotton cloth (width 1.5 m, thickness 400 μm) by knife coating, with a coating dry weight of 120 gsm, and then dried at 120° C. for 1 min to form a primer coating with a thickness of 40 μm;

[0062] (2) 8 parts of titanium dioxide, 12 parts of calcium carbonate, 18 parts of kaolin, 1.5 parts of polyvinyl alcohol resin, 30 parts of ethylene-vinyl acetate resin, 15 parts of butyl acrylate resin, 2 parts of associative acrylic thickener, 1 part of ammonia water, 1.2 parts of polycarboxylic acid sodium salt dispersant, 1 part of polyether siloxane wetting agent, 0.8 parts of polyurethane leveling agent, 25 parts of water and 1.5 parts of polyether silicone oil were mixed uniformly to obtain a mid-coat coating, and then the mid-coat coating was applied on the surface of the base coating by knife coating, with a coating dry weight of 80 gsm, and then dried at 120° C. for 1 min to form a mid-coat coating with a thickness of 20 μm;

[0063] (3) First, 15 parts of titanium dioxide, 20 parts of calcium carbonate, 10 parts of kaolin, 2 parts of silica fume, 35 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 0.5 parts of arecoline hydrobromide, 18 parts of water, 0.8 parts of polycarboxylic acid sodium salt dispersant, 0.8 parts of polyether siloxane wetting agent, 0.8 parts of polyurethane leveling agent and 0.5-1.5 parts of polyether silicone oil are mixed uniformly to obtain a mixture A, and then 1 part of natural borneol (purity ≥96%) and 2 parts of ethanol are mixed uniformly to obtain a mixture B, and then the mixture B is added to the mixture A and stirred uniformly to obtain a top coating, and then the top coating is applied to the surface of the middle coating by knife coating, with a coating dry weight of 50 gsm, and then dried at 80° C. for 1 min to form a top coating with a thickness of 10 μm;

[0064] (4) 15 parts of silicon powder, 30 parts of polyvinyl alcohol resin, 8 parts of ethylene-vinyl acetate resin, 4 parts of cationic acrylic resin, 8 parts of calcium carbonate, 0.4 parts of ethanol, 0.5 parts of glycerol, 0.8 parts of polycarboxylic acid sodium salt dispersant, 1.2 parts of polyether siloxane wetting agent, 40 parts of water and 1 part of polyether silicone oil are mixed uniformly to obtain an ink-absorbing layer coating, and then the ink-absorbing layer coating is applied on the surface of the top coating by wire scraper roller coating, with a coating dry weight of 35 gsm, and then dried at 80°C for 1 min to form an ink-absorbing layer with a thickness of 40 μm to obtain an oil painting canvas.

[0065] Comparative Example

[0066] A method for preparing an oil painting canvas comprises the following steps:

[0067] (1) 15 parts of titanium dioxide, 20 parts of calcium carbonate, 15 parts of talc, 1 part of polyvinyl alcohol resin, 20 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 0.5 parts of associative acrylic thickener, 0.5 parts of ammonia water, 0.8 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 0.5 parts of polyurethane leveling agent, 16 parts of water and 1 part of polyacrylic acid sodium salt were mixed uniformly by weight to obtain a primer coating, and then the primer coating was applied on the surface of pure cotton cloth (width 1.5 m, thickness 380-400 μm) by knife coating, with a coating dry weight of 110 gsm, and then dried at 110° C. for 1.5 min to form a primer coating with a thickness of 20 μm;

[0068] (2) 12 parts of titanium dioxide, 15 parts of calcium carbonate, 16 parts of kaolin, 1 part of polyvinyl alcohol resin, 25 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 1 part of associative acrylic thickener, 0.8 parts of ammonia water, 0.8 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 0.7 parts of polyurethane leveling agent, 21 parts of water and 1 part of polyacrylic acid sodium salt were mixed uniformly to obtain a mid-coat coating, and then the mid-coat coating was applied on the surface of the base coating by knife coating, with a coating dry weight of 70 gsm, and then dried at 110° C. for 1.5 min to form a mid-coat coating with a thickness of 40 μm;

[0069] (3) 12 parts of silicon powder, 26 parts of polyvinyl alcohol resin, 10 parts of ethylene-vinyl acetate resin, 5 parts of cationic acrylic resin, 5 parts of calcium carbonate, 0.5 parts of ethanol, 0.3 parts of glycerol, 0.5 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 38 parts of water and 0.8 parts of polyacrylic acid sodium salt were mixed uniformly to obtain an ink-absorbing layer coating, and then the ink-absorbing layer coating was applied on the surface of the middle coating layer by wire scraper roller coating, with a coating dry weight of 32 gsm, and then dried at 70°C for 1.5 minutes to form an ink-absorbing layer with a thickness of 20 μm to obtain an oil painting canvas.

[0070] Test example

[0071] The oil painting canvases prepared by the preparation methods of Examples 1-3 and the comparative example were tested for their sterilization and insect repellency properties, wherein Staphylococcus aureus ATCC6538, Escherichia coli ATCC25922 and Candida albicans ATCC25922 were purchased through commercial channels, and the test results are as follows:

[0072] 1.1 Killing and inhibiting the growth of mixed molds:

[0073] The test sample is a sheet material with a diameter of 1m×1m. The material is fixed on the wall. The number of test samples is 2. The results are shown in Table 1:

[0074] Table 1

[0075]

[0076] It can be seen from the test results in Table 1 that the oil painting canvases of Examples 1-3 have better killing and inhibiting effects on mixed molds.

[0077] 1.2 Kill and inhibit Staphylococcus aureus:

[0078] The test sample was a 10 cm diameter disc, the inoculated bacterial solution volume was 1.0 ml, and the number of test samples was 2. The results are shown in Table 2:

[0079] Table 2

[0080]

[0081]

[0082] It can be seen from the test results in Table 2 that the oil painting canvases of Examples 1-3 have better killing and inhibiting effects on Staphylococcus aureus.

[0083] 1.3 Killing and inhibiting E. coli:

[0084] The test sample was a 10 cm diameter disc, the inoculated bacterial solution volume was 1.0 ml, and the number of test samples was 2. The results are shown in Table 3:

[0085] Table 3

[0086]

[0087] The test results in Table 3 show that the oil painting canvases of Examples 1-3 have better killing and inhibiting effects on Escherichia coli.

[0088] 1.4 Killing and inhibiting Candida albicans:

[0089] The test sample was a 10 cm diameter disc, the inoculated bacterial solution volume was 1.0 ml, and the number of test samples was 2. The results are shown in Table 4:

[0090] Table 4

[0091]

[0092] It can be seen from the test results in Table 4 that the oil painting canvases of Examples 1-3 have better killing and inhibiting effects on Candida albicans.

[0093] 1.5 Test for expelling clothes moths and spiders:

[0094] Test sample: 50cm×80cm frameless painting, the number of tests is 2, the judgment standard is that the total number of clothes moths and spiders does not exceed 10, if more than 10, there is no repellency, the results are shown in Table 5:

[0095] Table 5

[0096]

[0097] The test results in Table 5 show that the oil painting canvases of Examples 1-3 have better effects on repelling clothes moths and spiders.

[0098] 1.6 Test for anti-mildew performance:

[0099] The anti-mildew properties of the oil painting canvases prepared by the preparation methods of Examples 1-3 and the comparative example were tested in accordance with GB / T 24346-2009 “Evaluation of Anti-mildew Properties of Textiles”. The results are shown in Table 6.

[0100] Table 6

[0101] Test No. Mildew resistance level Example 1 Level 0 Example 2 Level 1 Example 3 Level 2 Comparative Example Level 4

[0102] It can be seen from the above test results that the oil canvas prepared by the preparation method of the present invention not only has excellent color reproduction and sunlight fastness, but also has good bactericidal, antiviral and insect repellent functions, which is conducive to long-term storage and meets people's diverse needs.

[0103] The above is only the embodiment of the present application, and the protection scope of the present application is not limited by these specific embodiments, but is determined by the claims of the present application. For those skilled in the art, the present application can have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the technical ideas and principles of the present application should be included in the protection scope of the present application.

Claims

1. An oil painting canvas, characterized in that: It includes a base fabric layer, a base coating layer, a middle coating layer, a top coating layer and an ink absorbing layer which are arranged in sequence; The method for preparing the oil painting canvas comprises the following steps: (1) By weight, 12-15 parts of titanium dioxide, 18-20 parts of calcium carbonate, 15-17 parts of talc, 1-1.2 parts of polyvinyl alcohol resin, 1-1.5 parts of arecoline hydrobromide, 20-23 parts of ethylene-vinyl acetate resin, 10-12 parts of butyl acrylate resin, 0.5-0.8 parts of associative acrylic thickener, 0.5-0.7 parts of ammonia water, 0.6-0.8 parts of polycarboxylic acid sodium salt dispersant, 0.4-0.7 parts of polyether siloxane wetting agent, 0.2 - 0.5 parts of polyurethane leveling agent, 15-16 parts of water and 0.5-1 parts of polyether silicone oil or polyacrylic acid sodium salt are mixed evenly to obtain a primer coating, and then the primer coating is applied by blade coating on the surface of pure cotton cloth with a width of 1.5m and a thickness of 380μm or the surface of polyester-cotton cloth with a width of 1.5m and a thickness of 350μm, with a coating dry weight of 100-110gsm, and then dried at 100-110℃ for 1.5-2min to form a primer coating with a thickness of 45-50μm; (2) 10-12 parts of titanium dioxide, 14-15 parts of calcium carbonate, 15-16 parts of kaolin, 1-1.2 parts of polyvinyl alcohol resin, 25-28 parts of ethylene-vinyl acetate resin, 10-12 parts of butyl acrylate resin, 1-1.5 parts of associative acrylic thickener, 0.5-0.8 parts of ammonia water, 0.7-0.8 parts of polycarboxylic acid sodium salt dispersant, 0.5-0.7 parts of polyether siloxane wetting agent, 0.3-0.7 parts of polyurethane leveling agent, 20-21 parts of water and 0.5-1 parts of polyether silicone oil or polyacrylic acid sodium salt are mixed uniformly to obtain a mid-coat coating, and then the mid-coat coating is applied on the surface of the base coating by knife coating, with a coating dry weight of 60-70 gsm, and then dried at 100-110° C. for 1.5-2 minutes to form a mid-coat coating with a thickness of 25-30 μm; (3) First, 10-12 parts of titanium dioxide, 15-18 parts of calcium carbonate, 5-8 parts of kaolin, 1-1.5 parts of silica fume, 30-32 parts of ethylene-vinyl acetate resin, 5-8 parts of butyl acrylate resin, 0.5 parts of arecoline hydrobromide, 15-20 parts of water, 0.2-0.5 parts of polycarboxylic acid sodium salt dispersant, 0.2-0.5 parts of polyether siloxane wetting agent, 0.2-0.5 parts of polyurethane leveling agent and 0.5-1 parts of polyether silicone oil or polyacrylic acid sodium salt are mixed uniformly; A mixture A is obtained, and then 0.5-1.2 parts of natural camphor, 1-1.5 parts of natural borneol with a purity of ≥96% and 2-3 parts of ethanol are mixed evenly to obtain a mixture B, and then the mixture B is added to the mixture A and stirred evenly to obtain a top coating, and then the top coating is applied on the surface of the middle coating by knife coating, with a coating dry weight of 35-45 gsm, and then dried at 60-70° C. for 1.5-2 minutes to form a top coating with a thickness of 15-20 μm; (4) 10-12 parts of silicon powder, 25-26 parts of polyvinyl alcohol resin, 5-10 parts of ethylene-vinyl acetate resin, 3-5 parts of cationic acrylic resin, 5-7 parts of calcium carbonate, 0.3-0.5 parts of ethanol, 0.3-0.4 parts of glycerol, 0.4-0.5 parts of polycarboxylic acid sodium salt dispersant, 0.6-0.7 parts of polyether siloxane wetting agent, 25-38 parts of water and 0.5-0.8 parts of polyether silicone oil or polyacrylic acid sodium salt are mixed uniformly to obtain an ink-absorbing layer coating, and then the ink-absorbing layer coating is applied on the surface of the top coating by wire scraper roller coating, with a coating dry weight of 30-32 gsm, and then dried at 60-70°C for 1.5-2 minutes to form an ink-absorbing layer with a thickness of 45-50 μm to obtain an oil painting canvas.

2. The oil painting canvas according to claim 1, characterized in that: The base fabric layer is pure cotton fabric; The primer layer is composed of the following components in parts by weight: 15 parts of titanium dioxide, 20 parts of calcium carbonate, 15 parts of talc, 1 part of polyvinyl alcohol resin, 1 part of arecoline hydrobromide, 20 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 0.5 parts of associative acrylic thickener, 0.5 parts of ammonia water, 0.8 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 0.5 parts of polyurethane leveling agent, 16 parts of water and 1 part of polyether silicone oil; The middle coating layer is composed of the following components in parts by weight: 12 parts of titanium dioxide, 15 parts of calcium carbonate, 16 parts of kaolin, 1 part of polyvinyl alcohol resin, 25 parts of ethylene-vinyl acetate resin, 10 parts of butyl acrylate resin, 1 part of associative acrylic thickener, 0.8 parts of ammonia water, 0.8 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 0.7 parts of polyurethane leveling agent, 21 parts of water and 1 part of polyether silicone oil; The top coating is composed of the following components in parts by weight: 12 parts of titanium dioxide, 18 parts of calcium carbonate, 5 parts of kaolin, 1.2 parts of natural camphor, 1.5 parts of natural borneol with a purity of ≥96%, 0.5 parts of arecoline hydrobromide, 1.5 parts of silicon powder, 32 parts of ethylene-vinyl acetate resin, 8 parts of butyl acrylate resin, 20 parts of water, 3 parts of ethanol, 0.5 parts of polycarboxylic acid sodium salt dispersant, 0.5 parts of polyether siloxane wetting agent, 0.5 parts of polyurethane leveling agent and 1 part of polyether silicone oil; The ink-absorbing layer is composed of the following components in parts by weight: 12 parts of silicon powder, 26 parts of polyvinyl alcohol resin, 10 parts of ethylene-vinyl acetate resin, 5 parts of cationic acrylic resin, 5 parts of calcium carbonate, 0.5 parts of ethanol, 0.3 parts of glycerol, 0.5 parts of polycarboxylic acid sodium salt dispersant, 0.7 parts of polyether siloxane wetting agent, 38 parts of water and 0.8 parts of polyether silicone oil.

3. The oil painting canvas according to claim 1, characterized in that: The arecoline hydrobromide is a betel nut extract.

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