High-temperature-resistant water-based wine bottle paint with skin feeling and preparation method thereof

Abstract

The invention provides high-temperature-resistant water-based wine bottle paint with a skin feeling and a preparation method of the high-temperature-resistant water-based wine bottle paint, and belongs to the field of wine bottle baking varnish. The coating is prepared from the following raw materials in percentage by weight: 38%-48% of polyester modified organic silicon resin, 0.1%-0.3% of dimethylethanolamine, 0.5%-1.5% of an efficient dispersant, 7%-13% of deionized water, 17%-23% of nanoscale titanium dioxide, 3%-7% of nanoscale barium sulfate, 3%-7% of nanoscale talcum powder, 6%-8% of amino resin, 0.3%-0.7% of an organic silicon flatting agent, 1%-3% of organic silicon elastomer nanoparticles and 0.5%-1.5% of extinction powder. 2%-4% of ethanol and 1.5%-2.5% of water-based oligomeric silane. According to the high-temperature-resistant water-based wine bottle paint with the skin feeling and the preparation method thereof, the paint is resistant to high-temperature baking and does not change color, the product adhesive force is better, and the paint has the skin-like hand feeling.

Description

Technical Field

[0001] The invention relates to the field of wine bottle baking varnish, and in particular to a high temperature resistant water-based wine bottle varnish with skin feel and a preparation method thereof. Background Art

[0002] After the wine bottle is painted, the wine bottle has good chemical stability, is easy to seal, has good airtightness, and has a certain mechanical strength. It can withstand the pressure inside the bottle and the external force during transportation. It is not easy to break during transportation. The paint of the wine bottle is opaque and has good storage performance, which is convenient for long-term storage; secondly, the textured paint process will make the wine bottle look more exquisite. The wine bottle paint is to cover the outer surface of the wine bottle with a layer of paint with a thickness of about 25-50 microns, and then dry it, so that the surface of the glass wine bottle is smooth and has a certain wear resistance and chemical corrosion resistance.

[0003] At present, domestic water-based wine bottle paint is mainly acrylic amino paint type, using acrylic resin as the main resin and methyl etherified melamine formaldehyde resin for cross-linking reaction; before baking the wine bottle, it is mixed and diluted with silane coupling agent, and then dried at high temperature after spraying. Because silane coupling agent is added before baking the wine bottle, it needs to be used within a short time after adding silane coupling agent, otherwise the silane coupling agent will fail, resulting in poor adhesion; silane coupling agent needs to be added in a fixed proportion during construction, but it is not easy to disperse evenly, which is easy to cause poor adhesion of local paint film, poor ethanol resistance and water resistance, and a high-precision balance is required during construction, which causes many inconveniences to the construction; and when the baking temperature of this type of wine bottle paint is too high or the baking time is too long, the paint film is prone to yellowing, causing product quality problems; when the paint film is sprayed thinly, the surface roughness is obvious. For example: CN103483985A A high-gloss ethanol-resistant water-based acrylic amino glass bottle paint and its preparation method and application discloses a. Preparation of color paste: Add epoxy-modified water-soluble acrylic resin and water to a dispersion tank, disperse at medium speed for 15 minutes, then slowly add cosolvent, color powder, defoamer, dispersant and wetting agent, disperse at high speed for 25 to 35 minutes, grind the high-speed dispersed slurry twice with a sand mill to prepare the color paste for use; b. Preparation of component 1: Add Add epoxy modified water-soluble acrylic resin, partially methylated melamine formaldehyde resin and water, disperse at medium speed for 15 minutes, then slowly add leveling agent, thickener and color paste prepared in step a, disperse at high speed for 30-35 minutes, take samples to detect the fineness and viscosity of the finished product, filter and package to obtain component 1; c. Prepare component 2: weigh propyl trimethoxy silane coupling agent, filter and package to obtain component 2; d. Store component 1 and component 2 separately, and mix them evenly before use"; for example: CN 103483986A An environmentally friendly impact-resistant water-based acrylic amino glass bottle paint and its preparation method and application, discloses its process steps: a. Preparation of color paste: add water-based acrylic modified epoxy ester resin and water in a dispersion tank, disperse at medium speed for 15 minutes, then slowly add cosolvent, color powder, defoamer, dispersant and wetting agent, disperse at high speed for 25 to 35 minutes, grind the high-speed dispersed slurry twice with a sand mill to prepare the color paste for use; b. Preparation of component 1 ... Modified epoxy ester resin, high methyl ether melamine formaldehyde resin and water are dispersed at medium speed for 15 minutes, and then the leveling agent, thickener and the color paste prepared in step a are slowly added, and the dispersion is carried out at high speed for 30-35 minutes. Samples are taken to detect the fineness and viscosity of the finished product, and the finished product is filtered and packaged with a filter cloth of more than 200 meshes to obtain component 1; c. Preparation of component 2: Weigh propyltrimethoxysilane coupling agent, filter with a filter cloth of more than 200 meshes, and then package to obtain component 2; d. The prepared components 1 and 2 are stored separately, and then mixed evenly before use. Summary of the invention

[0004] The purpose of the present invention is to provide a high-temperature resistant water-based wine bottle paint with skin feel and a preparation method thereof, which can withstand high-temperature baking without discoloration, has better product adhesion and has a skin-like feel.

[0005] In order to solve the above technical problems, the high temperature resistant water-based wine bottle paint with skin feel and the preparation method thereof provided by the present invention are achieved as follows:

[0006] The invention discloses a high-temperature resistant water-based wine bottle paint with skin feel, which is composed of the following raw materials in percentage by weight: 38% to 48% of polyester modified silicone resin, 0.1% to 0.3% of dimethylethanolamine, 0.5% to 1.5% of high-efficiency dispersant, 7% to 13% of deionized water, 17% to 23% of nano-grade titanium dioxide, 3% to 7% of nano-grade barium sulfate, 3% to 7% of nano-grade talc, 6% to 8% of amino resin, 0.3% to 0.7% of silicone leveling agent, 1% to 3% of silicone elastomer nanoparticles, 0.5% to 1.5% of matting powder, 2% to 4% of ethanol and 1.5% to 2.5% of water-based oligomeric silane.

[0007] The invention adopts high temperature resistant polyester modified organic silicon resin as the main resin, and adopts high temperature resistant titanium dioxide, barium sulfate and talcum powder as the color filler, so that the product can withstand long-term baking at a high temperature below 500°C without discoloration; the hydrolysis-free water-based oligosiloxane can be stored in water for a long time without deterioration, and the addition of the hydrolysis-free water-based oligosiloxane makes the product more convenient to use, solves the trouble of adding silane coupling agent when using the existing products on the market, ensures the adhesion of the product, and makes the quality of the produced product more stable; the resins used in the product are all water-based resins, and the solvent used is ethanol, which is more environmentally friendly and safe. The VOC of the wine bottle baking paint product of the invention is controlled below 100g / L, which is far lower than the most stringent environmental protection standard in the coating industry; by adding the polyester modified organic silicon resin and the anti-scratch feel additive of organic silicon elastomer nanoparticles with polar groups, the product of the invention has a skin-like feel.

[0008] Optionally, the composition is composed of the following raw materials in weight percentage: 43.3% polyester modified silicone resin, 0.2% dimethylethanolamine, 1% high-efficiency dispersant, 10% deionized water, 20% nano-grade titanium dioxide, 5% nano-grade barium sulfate, 5% nano-grade talc, 7% amino resin, 0.5% silicone leveling agent, 2% silicone elastomer nanoparticles, 1% matting powder, 3% ethanol and 2% water-based oligomeric silane.

[0009] Optionally, the composition is composed of the following raw materials in weight percentage: 38% polyester modified silicone resin, 0.3% dimethylethanolamine, 1.5% high-efficiency dispersant, 9% deionized water, 23% nano-grade titanium dioxide, 7% nano-grade barium sulfate, 5% nano-grade talc, 7% amino resin, 0.7% silicone leveling agent, 2% silicone elastomer nanoparticles, 1.5% matting powder, 3% ethanol and 2% water-based oligomeric silane.

[0010] Optionally, the composition is composed of the following raw materials in weight percentage: 48% polyester modified silicone resin, 0.1% dimethylethanolamine, 0.5% high-efficiency dispersant, 8% deionized water, 18.2% nano-grade titanium dioxide, 3% nano-grade barium sulfate, 7% nano-grade talc, 8% amino resin, 0.7% silicone leveling agent, 3% silicone elastomer nanoparticles, 1.5% matting powder, 3% ethanol and 2% water-based oligomeric silane.

[0011] Optionally, the composition is composed of the following raw materials in weight percentage: 40% polyester modified silicone resin, 0.2% dimethylethanolamine, 1% high-efficiency dispersant, 13% deionized water, 21.5% nano-grade titanium dioxide, 5% nano-grade barium sulfate, 3% nano-grade talc, 8% amino resin, 0.3% silicone leveling agent, 1% silicone elastomer nanoparticles, 0.5% matting powder, 4% ethanol and 2.5% water-based oligomeric silane.

[0012] Optionally, the composition is composed of the following raw materials in weight percentage: 44% polyester modified silicone resin, 0.2% dimethylethanolamine, 1.2% high-efficiency dispersant, 13% deionized water, 17% nano-grade titanium dioxide, 6% nano-grade barium sulfate, 4% nano-grade talc, 6% amino resin, 0.6% silicone leveling agent, 2% silicone elastomer nanoparticles, 1% matting powder, 3% ethanol and 2% water-based oligomeric silane.

[0013] A preparation method of a high-temperature resistant water-based wine bottle paint with a skin feel comprises the following steps: adding polyester-modified silicone, dimethylethanolamine, a high-efficiency dispersant and deionized water into a production tank and dispersing them at a medium speed for 5-10 minutes; then adding nano-grade talcum powder, nano-grade titanium dioxide and nano-grade barium sulfate, dispersing them at a high speed for 25-30 minutes and grinding them twice with a nano-grade circulating sand mill until the fineness is less than 15 μm; finally, adding amino resin, water-based oligosiloxane, silicone leveling agent and matting powder and dispersing them evenly at a medium speed to prepare a finished paint.

[0014] Optionally, the high-speed dispersion is 1500±200 rpm, and the medium-speed dispersion is 1000±200 rpm.

[0015] Using high temperature resistant polyester modified silicone as the main resin,

[0016] The present invention has the following beneficial effects:

[0017] 1. The present invention has extremely low construction VOC, and the VOC under construction is 83g / L, which makes it have excellent environmental protection performance;

[0018] 2. During the construction of the water-based wine bottle paint of the present invention, it only needs to be diluted with water to a suitable viscosity before spraying, and no additional silane coupling agent needs to be added. The coating film can have excellent adhesion and water and ethanol resistance, which greatly simplifies the construction complexity of the wine bottle paint and enhances the stability of product construction.

[0019] 3. The water-based wine bottle paint of the present invention adopts a highly efficient silicone leveling agent and a silicone elastomer nano skin feel additive, so that it has excellent leveling properties and an excellent feel. By adjusting the content of the matting powder, products with different glosses can be obtained, so that the wine bottle after spraying has an excellent aesthetic and feel. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail in the following embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] The invention discloses a high-temperature resistant water-based wine bottle paint with skin feel. The paint is composed of the following raw materials in percentage by weight: 38% to 48% of polyester-modified organic silicon resin, 0.1% to 0.3% of dimethylethanolamine, 0.5% to 1.5% of high-efficiency dispersant, 7% to 13% of deionized water, 17% to 23% of nano-grade titanium dioxide, 3% to 7% of nano-grade barium sulfate, 3% to 7% of nano-grade talc, 6% to 8% of amino resin, 0.3% to 0.7% of organic silicon leveling agent, 1% to 3% of organic silicon elastomer nanoparticles, 0.5% to 1.5% of matting powder, 2% to 4% of ethanol and 1.5% to 2.5% of water-based oligomeric silane.

[0022] A preparation method of a high temperature resistant water-based wine bottle paint with skin feel, comprising the steps of: adding polyester modified organic silicon, dimethylethanolamine, high efficiency dispersant and deionized water into a production tank, dispersing at a medium speed for 5-10 minutes; adding nano-grade talcum powder, nano-grade titanium dioxide and nano-grade barium sulfate, dispersing at a high speed for 25-30 minutes, grinding twice with a nano-grade circulating sand mill until the fineness is less than 15 μm; finally, adding amino resin, water-based oligosiloxane, organic silicon leveling agent and matting powder, dispersing at a medium speed uniformly, and preparing a finished paint. The wine bottle paint is sprayed by electrostatic rotary cup.

[0023] Among them, the high-speed dispersion is 1500±200 rpm, and the medium-speed dispersion is 1000±200 rpm.

[0024] The sources of raw materials used in the present invention are as follows:

[0025] The polyester modified silicone resin is Wacker MPF 52E, the dimethylethanolamine is provided by Hemmings, the high-efficiency dispersant is an acrylic block copolymer provided by BASF; the amino resin is a methyl etherified high-imino melamine formaldehyde resin, the silicone leveling agent is BYK-378, and the matting agent is fumed silica.

[0026] Detailed embodiments of the high temperature resistant water-based wine bottle paint having skin feel of the present invention are provided as follows.

[0027] Embodiment 1

[0028] The percentage of raw materials of the high temperature resistant and skin-feeling water-based wine bottle paint of this embodiment is shown in Table 1:

[0029]

[0030]

[0031] Table 1

[0032] Embodiment 2

[0033] The percentage of raw materials of the high temperature resistant and skin-feeling water-based wine bottle paint of this embodiment is shown in Table 2:

[0034] Raw material name Percentage content (%) Polyester modified silicone resin 38 dimethylethanolamine 0.3 High efficiency dispersant 1.5 Deionized water 9 Nano-grade titanium dioxide 23 Nano Barium Sulfate 7 Nano talc 5 Amino resin 7 Silicone leveling agent 0.7 Silicone elastomer nanoparticles 2 Matting powder 1.5 Ethanol 3 Waterborne oligosiloxane 2 total 100

[0035] Table 2

[0036] Embodiment 3

[0037] The percentage of raw materials of the high temperature resistant and skin-feeling water-based wine bottle paint of this embodiment is shown in Table 3:

[0038]

[0039]

[0040] Table 3

[0041] Embodiment 4

[0042] The percentage of raw materials of the high temperature resistant and skin-feeling water-based wine bottle paint of this embodiment is shown in Table 4:

[0043] Raw material name Percentage content (%) Polyester modified silicone resin 40 dimethylethanolamine 0.2 High efficiency dispersant 1 Deionized water 13 Nano-grade titanium dioxide 21.5 Nano Barium Sulfate 5 Nano talc 3 Amino resin 8 Silicone leveling agent 0.3 Silicone elastomer nanoparticles 1 Matting powder 0.5 Ethanol 4 Waterborne oligosiloxane 2.5 total 100

[0044] Table 4

[0045] Embodiment 5

[0046] The percentage of raw materials of the high temperature resistant and skin-feeling water-based wine bottle paint of this embodiment is shown in Table 5:

[0047]

[0048]

[0049] Table 5

[0050] Embodiment 6

[0051] The percentage of raw materials of the high temperature resistant and skin-feeling water-based wine bottle paint of this embodiment is shown in Table 6:

[0052] Raw material name Percentage content (%) Polyester modified silicone resin 43.7 dimethylethanolamine 0.1 High efficiency dispersant 0.8 Deionized water 10 Nano-grade titanium dioxide 20 Nano Barium Sulfate 4 Nano talc 6 Amino resin 7 Silicone leveling agent 0.4 Silicone elastomer nanoparticles 2 Matting powder 1 Ethanol 3 Waterborne oligosiloxane 2 total 100

[0053] Table 6

[0054] Comparative Example

[0055] Relative to the content of the components in Example 1, the present invention changes the amount of nano-scale barium sulfate, water-based oligosiloxane, amino resin and silicone elastomer nanoparticles. The content of the components of Comparative Examples 1 to 9 is shown in Tables 7 and 8:

[0056] Table 7 Comparative Examples 1 to 4 Component Content

[0057] Raw material name Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Polyester modified silicone resin 43.3 43.3 43.3 43.3 dimethylethanolamine 0.2 0.2 0.2 0.2 High efficiency dispersant 1 1 1 1 Deionized water 10 10 10 10 Nano-grade titanium dioxide 20 20 20 20 Nano-barium sulfate 10 0 5 5 Nano talc 0 10 5 5 Amino resin 7 7 7 7 Silicone leveling agent 0.5 0.5 0.5 0.5 Silicone elastomer nanoparticles 2 2 2 2 Matting powder 1 1 1 1 Ethanol 3 3 3 3 Waterborne oligosiloxane 2 2 1 3 total 100 100 100 100

[0058] Table 8 Comparative Examples 5 to 8 Ingredient Content

[0059] Raw material name Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Polyester modified silicone resin 40 35 46.3 41.3 39.3 dimethylethanolamine 0.2 0.2 0.2 0.2 0.2 High efficiency dispersant 1 1 1 1 1 Deionized water 10 10 10 10 10 Nano-grade titanium dioxide 20 20 20 20 20 Nano Barium Sulfate 5 0 5 5 5 Nano talc 5 10 5 5 5 Amino resin 7 7 5 9 11 Silicone leveling agent 0.5 0.5 0.5 0.5 0.5 Silicone elastomer nanoparticles 5.3 10.3 2 2 2 Matting powder 1 1 1 1 1 Ethanol 3 3 3 3 3 Waterborne oligosiloxane 2 2 1 2 3 total 100 100 100 100 100

[0060] Paints were prepared according to the preparation method of Example 1, and the paint products of Example 1 and Comparative Examples 1 to 5 were tested respectively. The test methods and standards are as follows:

[0061] Test method:

[0062] 1. Adhesion: Test and evaluate according to GB / T9286-1998;

[0063] 2. Water resistance: Test and evaluate according to GB / T 1733-1993 (Method A);

[0064] 3. Resistance to 50% alcohol: Test and evaluate according to GB / T 23989-2009;

[0065] 4. Paint film lubricity: touch.

[0066] Table 9 is the evaluation results of Examples 1 to 6

[0067]

[0068] Table 10 is the evaluation results of comparative examples 1 to 4

[0069] Sample test results Comparative Example 1 Comparative Example 2 Comparative Example 3 Comparative Example 4 Adhesion(grade) 0 0 1 0 Water resistance (h) 360 360 312 360 Resistance to 50% alcohol wiping (times) 1000 1000 900 1000 Film lubricity Not smooth enough Not smooth enough Smooth Not smooth enough

[0070] Table 11 is the evaluation results of comparative examples 5 to 9

[0071] Sample test results Comparative Example 5 Comparative Example 6 Comparative Example 7 Comparative Example 8 Comparative Example 9 Adhesion(grade) 0 0 1 0 0 Water resistance (h) 360 360 360 312 336 Resistance to 50% alcohol wiping (times) 800 800 1000 900 900 Film lubricity Smooth Smooth Not smooth enough Smooth Not smooth enough

[0072] Comparing Table 1, Table 7 and Table 8, the comparison example increases the content of nano-barium sulfate by 5%, the comparison example 2 does not add nano-barium sulfate, the comparison example 3 reduces the amount of water-based oligosiloxane added by 1%, and the comparison example 4 increases the amount of water-based oligosiloxane added by 1%; the comparison example 5 increases the amount of organosilicon elastomer nanoparticles, and the comparison example 6 continues to increase the amount of organosilicon elastomer nanoparticles; the comparison example 7 reduces the amount of amino resin, the comparison example 8 increases the amount of amino resin, and the comparison example 9 continues to increase the amount of amino resin and increases the amount of water-based oligosiloxane at the same time. By comparison, it is known that adding too much or too little nano-barium sulfate will affect the adhesion and lubricity of the paint; too little water-based oligosiloxane will affect water resistance and alcohol resistance, and too much will affect adhesion and lubricity, which is also reflected in the comparison example 9; the amount of organosilicon elastic nanoparticles affects alcohol resistance and adhesion; too little amino resin has insufficient lubricity, and too much water resistance, alcohol resistance and adhesion are affected.

[0073] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A high temperature resistant water-based wine bottle paint with skin feel, characterized in that: The invention is composed of the following raw materials in percentage by weight: 38% to 48% of polyester modified organic silicon resin, 0.1% to 0.3% of dimethylethanolamine, 0.5% to 1.5% of high-efficiency dispersant, 7% to 13% of deionized water, 17% to 23% of nano-grade titanium dioxide, 3% to 7% of nano-grade barium sulfate, 3% to 7% of nano-grade talc, 6% to 8% of amino resin, 0.3% to 0.7% of organic silicon leveling agent, 1% to 3% of organic silicon elastomer nanoparticles, 0.5% to 1.5% of matting powder, 2% to 4% of ethanol and 1.5% to 2.5% of water-based oligomeric silane.

2. The high temperature resistant water-based wine bottle paint with skin feel according to claim 1, characterized in that: The invention is composed of the following raw materials in percentage by weight: 43.3% of polyester modified silicone resin, 0.2% of dimethylethanolamine, 1% of high-efficiency dispersant, 10% of deionized water, 20% of nano-grade titanium dioxide, 5% of nano-grade barium sulfate, 5% of nano-grade talc, 7% of amino resin, 0.5% of silicone leveling agent, 2% of silicone elastomer nanoparticles, 1% of matting powder, 3% of ethanol and 2% of water-based oligomeric silane.

3. The high temperature resistant water-based wine bottle paint with skin feel according to claim 1, characterized in that: The invention is composed of the following raw materials in percentage by weight: 38% of polyester modified silicone resin, 0.3% of dimethylethanolamine, 1.5% of high-efficiency dispersant, 9% of deionized water, 23% of nano-grade titanium dioxide, 7% of nano-grade barium sulfate, 5% of nano-grade talc, 7% of amino resin, 0.7% of silicone leveling agent, 2% of silicone elastomer nanoparticles, 1.5% of matting powder, 3% of ethanol and 2% of water-based oligomeric silane.

4. The high temperature resistant water-based wine bottle paint with skin feel according to claim 1, characterized in that: The invention is composed of the following raw materials in percentage by weight: 48% of polyester modified silicone resin, 0.1% of dimethylethanolamine, 0.5% of high-efficiency dispersant, 8% of deionized water, 18.7% of nano-grade titanium dioxide, 3% of nano-grade barium sulfate, 7% of nano-grade talc, 8% of amino resin, 0.7% of silicone leveling agent, 3% of silicone elastomer nanoparticles, 1.5% of matting powder, 3% of ethanol and 1.5% of water-based oligomeric silane.

5. The high temperature resistant water-based wine bottle paint with skin feel according to claim 1, characterized in that: The invention is composed of the following raw materials in percentage by weight: 40% polyester modified silicone resin, 0.2% dimethylethanolamine, 1% high-efficiency dispersant, 13% deionized water, 21.5% nano-grade titanium dioxide, 5% nano-grade barium sulfate, 3% nano-grade talc, 8% amino resin, 0.3% silicone leveling agent, 1% silicone elastomer nanoparticles, 0.5% matting powder, 4% ethanol and 2.5% water-based oligomeric silane.

6. The high temperature resistant water-based wine bottle paint with skin feel according to claim 1, characterized in that: The invention is composed of the following raw materials in percentage by weight: 44% polyester modified silicone resin, 0.2% dimethylethanolamine, 1.2% high-efficiency dispersant, 13% deionized water, 17% nano-grade titanium dioxide, 6% nano-grade barium sulfate, 4% nano-grade talc, 6% amino resin, 0.6% silicone leveling agent, 2% silicone elastomer nanoparticles, 1% matting powder, 3% ethanol and 2% water-based oligomeric silane.

7. The high temperature resistant water-based wine bottle paint with skin feel according to claim 1, characterized in that: The polyester-modified silicone resin is Wacker MPF 52E, the dimethylethanolamine is produced by Hemmings, the high-efficiency dispersant is BASF acrylic block copolymer, and the amino resin is Allnex methyl etherified high-imino melamine formaldehyde resin.

8. The method for preparing the high temperature resistant water-based wine bottle paint with skin feel according to claim 1, characterized in that: Put polyester modified silicone, dimethylethanolamine, high-efficiency dispersant and deionized water into the production tank and disperse at medium speed for 5-10 minutes; then put nano-grade talcum powder, nano-grade titanium dioxide and nano-grade barium sulfate into the production tank and disperse at high speed for 25-30 minutes, then grind twice with a nano-grade circulating sand mill until the fineness is less than 15μm; finally, add amino resin, water-based oligosiloxane, silicone leveling agent and matting powder and disperse evenly at medium speed to make the finished paint.

9. The method for preparing the high temperature resistant water-based wine bottle paint with skin feel according to claim 8, characterized in that: The high-speed dispersion is 1500±200 rpm, and the medium-speed dispersion is 1000±200 rpm.

10. The method for preparing the high temperature resistant water-based wine bottle paint with skin feel according to claim 8, characterized in that: The wine bottle paint is sprayed by electrostatic spinning cup.

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