Glass bottle surface metal matte paint spraying method and glass bottle

Abstract

The invention discloses a glass bottle surface metal matte paint spraying method and a glass bottle, and relates to the field of glass bottle spraying processes, the glass bottle is pretreated through the steps of alkali washing degreasing, acid pickling oxide removal, clear water washing, drying and the like, then surface activation treatment is conducted, a middle layer is introduced, and finally metal matte paint spraying is conducted. The problems that a traditional glass bottle surface decoration technology is difficult to meet high-end and personalized requirements, and a paint film is insufficient in adhesive force and prone to falling off when metal matte paint is directly sprayed on the glass surface are solved, and firm attachment of the metal matte paint on the surface of the glass bottle is achieved; the purposes that the glass wine bottle is endowed with unique texture and visual effect, the durability of the wine bottle is improved, and the requirement of the market for the appearance of the high-end and personalized wine bottle is met are achieved.

Description

Technical Field

[0001] The invention relates to the field of spraying technology for glass bottles, and in particular to a method for spraying matte metal paint on the surface of a glass bottle and a glass wine bottle. Background Art

[0002] In the field of surface decoration of glass wine bottles, the traditional methods are mostly labeling or simple spraying. However, with the development of the market, this traditional process can no longer meet the market demand for high-end and personalized wine bottle appearance. Metallic matte paint has gradually attracted widespread attention in wine bottle decoration due to its unique texture and attractive visual effects. The uniqueness of metallic matte paint is that it can show subtle changes under different lighting conditions, giving people a sense of low-key luxury. This paint can give the wine bottle a unique temperament, making it stand out from many products and become the focus of consumers. Whether in high-end restaurants or private wine cellars, wine bottles decorated with metallic matte paint can show their unique charm.

[0003] However, there are obvious defects in spraying metallic matte paint directly on the glass surface. For example, due to the smooth characteristics of the glass surface and the compatibility issues with metallic matte paint, the paint film adhesion is seriously insufficient, and it is easy to fall off during use. This not only affects the aesthetics of the wine bottle, but may also have a negative impact on the quality and brand image of the product. Once the paint layer on the surface of the wine bottle falls off, it will not only make the wine bottle look shabby, but may also cause the wine inside the bottle to be contaminated, thereby affecting the quality of the wine. In addition, the falling paint layer may also pollute the environment, which does not meet the requirements of modern society for environmental protection. Therefore, it is urgent to develop a new spraying method to effectively solve these problems. Summary of the invention

[0004] In view of this, the object of the present invention is to provide a method for spraying metallic matte paint on the surface of a glass bottle and a glass bottle.

[0005] One of the purposes of the present invention is to provide a method for spraying a metallic matte paint on a glass bottle surface, comprising:

[0006] S1, cleaning glass bottles;

[0007] S2, activating the surface of the glass bottle;

[0008] S3, spraying a metal oxide primer on the surface of the glass bottle;

[0009] S4, spraying an intermediate layer of paint on the surface of the glass bottle;

[0010] S5, spraying metallic matte paint on the surface of the glass bottle;

[0011] Wherein, S2 is to activate the surface of the glass bottle using a silane coupling agent solution with a concentration of 2 to 4 wt.%.

[0012] Preferably, in S2, the surface activation step is: after the glass bottle is immersed in the silane coupling agent solution for 5 to 10 minutes, it is placed at a temperature of 80 to 100° C. and kept warm for 5 to 10 minutes.

[0013] In some preferred embodiments, the surface activation step is as follows: the glass bottle is immersed in the silane coupling agent solution for 6 minutes and then kept at 90° C. for 5 minutes.

[0014] Preferably, the silane coupling agent is γ-aminopropyltriethoxysilane.

[0015] Preferably, in S4, the intermediate layer paint contains polyurethane modified acrylate, methyl methacrylate and ethyl acetate.

[0016] Further preferably, the mass ratio of polyurethane modified acrylate to methyl methacrylate in the intermediate layer paint is (70-80):(10-15).

[0017] In some preferred embodiments, the mass ratio of polyurethane modified acrylate to methyl methacrylate in the intermediate layer is 75:12.

[0018] Further preferably, the viscosity of the intermediate layer paint during spraying is 25 to 30 seconds.

[0019] In some preferred embodiments, the viscosity of the intermediate layer paint during spraying is 28 seconds.

[0020] Preferably, the intermediate layer paint spraying parameters are to spray at an air pressure of 0.3 to 0.4 MPa while keeping the distance between the nozzle and the surface of the glass bottle at 250 to 300 mm.

[0021] Further preferably, after the intermediate layer of paint is sprayed, it is allowed to stand for 10 to 15 minutes and then placed at 40 to 50° C. for 5 to 10 minutes.

[0022] In some preferred embodiments, the intermediate layer of paint is sprayed at an air pressure of 0.35 MPa with the nozzle kept 270 mm away from the surface of the glass bottle. After completion, it is kept at room temperature for 10 minutes and then placed at 45°C for 5 minutes to complete the spraying of the intermediate layer.

[0023] Preferably, in S1, the cleaning step is: first soak the glass bottle in a strong alkaline solution, then soak the glass bottle in a strong acid solution, and finally rinse with clean water until it is neutral, and dry it.

[0024] Further preferably, the mass fraction of the strong alkaline solution is 5-8%, and the solute is sodium hydroxide or potassium hydroxide.

[0025] In some preferred embodiments, the strong alkaline solution is a sodium hydroxide solution with a mass fraction of 6%.

[0026] Further preferably, the mass fraction of the strong acid solution is 4-5%, and the strong acid is one or more of hydrochloric acid, sulfuric acid, and nitric acid.

[0027] In some preferred embodiments, the strong acid solution is a hydrochloric acid solution with a mass fraction of 4%.

[0028] More preferably, in S1, the drying temperature is 40-50°C.

[0029] In some preferred embodiments, in S1, the drying temperature is 40°C.

[0030] Preferably, in S3, the metal oxide primer contains: nano titanium dioxide, nano zirconium dioxide, γ-aminopropyltriethoxysilane, polyperfluoroacrylate and isopropyl alcohol.

[0031] Further preferably, γ-aminopropyltriethoxysilane is used to modify the nano-oxide.

[0032] More preferably, the mass ratio of nano titanium dioxide, nano zirconium dioxide, polyperfluoroacrylate and isopropyl alcohol is (3-9):(2-6):(50-70):(120-160).

[0033] In some preferred embodiments, the mass ratio of nano titanium dioxide, nano zirconium dioxide, polyperfluoroacrylate and isopropyl alcohol is 6:4:60:140.

[0034] Preferably, the viscosity of the metal oxide primer when used for spraying is 20 to 25 seconds.

[0035] More preferably, xylene is used to adjust the viscosity of the metal oxide primer.

[0036] In some preferred embodiments, the viscosity of the metal oxide primer when used for spraying is 22 seconds.

[0037] Preferably, in S3, the parameters for spraying the metal oxide primer are to spray at an air pressure of 0.35 to 0.45 MPa while keeping the distance between the nozzle and the surface of the glass bottle at 280 to 320 mm.

[0038] More preferably, after the metal oxide primer is sprayed, it is placed at 135-145° C. for 35-45 minutes.

[0039] In some preferred embodiments, the metal oxide is sprayed at an air pressure of 0.4 MPa with the nozzle kept at a distance of 300 mm from the surface of the glass bottle. After completion, the spraying is carried out at 140° C. for 40 minutes.

[0040] Preferably, in S5, the matte paint comprises: a reactant combination, an initiator, metal powder, matte slurry, a defoamer, a thickener, a leveling agent, and a pH adjuster.

[0041] Further preferably, the reactant combination is dodecafluoroheptyl acrylate, hexafluorobutyl acrylate, methyl methacrylate, styrene, isooctyl acrylate, and propylene glycol methyl ether acetate.

[0042] More preferably, the mass ratio of dodecafluoroheptyl acrylate, hexafluorobutyl acrylate, methyl methacrylate, styrene, isooctyl acrylate and propylene glycol methyl ether acetate is (0.5-1.5):(1.5-4.2):(0.3-0.9):(0.3-1):(0.5-1.5):(2.5-7.5).

[0043] In some preferred embodiments, the mass ratio of dodecafluoroheptyl acrylate, hexafluorobutyl acrylate, methyl methacrylate, styrene, isooctyl acrylate and propylene glycol methyl ether acetate is 1:2.8:0.6:0.65:1:5.

[0044] More preferably, the initiator is azobisisobutyronitrile and tert-dodecyl mercaptan.

[0045] Further preferably, the mass ratio of the initiator to the reactant combination is (0.5-1.5):20.

[0046] In some preferred embodiments, the mass ratio of the initiator to the reactant combination is 1:20.

[0047] More preferably, the mass ratio of azobisisobutyronitrile to tert-dodecyl mercaptan is (0.8-1.2):(1-1.5).

[0048] In some preferred embodiments, the mass ratio of azobisisobutyronitrile to tert-dodecyl mercaptan is 1:1.2.

[0049] Further preferably, the metal powder is aluminum powder.

[0050] More preferably, the particle size of the aluminum powder is 15 to 150 μm.

[0051] In some preferred embodiments, the particle size of the aluminum powder is D50=50 μm.

[0052] Further preferably, the amount of the aluminum powder used is 1.5-3% of the mass of the reactant combination.

[0053] In some preferred embodiments, the amount of aluminum powder used is 2% of the mass of the reactant combination.

[0054] Further preferably, the matte paste comprises: silicon dioxide matting powder, polyethylene glycol fatty acid ester, hydroxypropyl methylcellulose, sodium bicarbonate, glycerol and water.

[0055] More preferably, the amount of the dumb slurry is 15-25% of the mass of the reactant combination.

[0056] In some preferred embodiments, the amount of the dumb slurry is 20% of the mass of the reactant combination.

[0057] More preferably, the mass fractions of silicon dioxide matting powder, polyethylene glycol fatty acid ester, hydroxypropyl methylcellulose, sodium bicarbonate and glycerol in the matte slurry are 42-48%, 2-4%, 3.5-5.5%, 0.1-0.3% and 1-3%, respectively, and the balance is water.

[0058] In some preferred embodiments, the mass ratio of silicon dioxide matting powder, polyethylene glycol fatty acid ester, hydroxypropyl methylcellulose, sodium bicarbonate, glycerol and water in the matte slurry is 45:3:4.5:0.2:2:45.3.

[0059] More preferably, the defoaming agent is a silicone polyether defoaming agent.

[0060] More preferably, the thickener is a water-based polyurethane thickener.

[0061] More preferably, the leveling agent is polyether-modified polydimethylsiloxane.

[0062] More preferably, the pH adjuster is diethanolamine.

[0063] More preferably, the amounts of the defoamer, thickener, leveling agent and pH adjuster are 1-1.5%, 2.3-2.8%, 1.5-2% and 0.2-0.6% of the combined mass of the reactants, respectively.

[0064] In some preferred embodiments, the amounts of the defoamer, thickener, leveling agent and pH adjuster are 1.2%, 2.5%, 1.8% and 0.4% of the mass of the reactant combination, respectively.

[0065] Preferably, the method for spraying matte metal paint on the surface of a glass bottle further includes step S6, which is provided after step S5, and step S6 is grinding and polishing the glass bottle.

[0066] A second object of the present invention is to provide a glass wine bottle with a surface sprayed with metallic matte paint.

[0067] Compared with the prior art, the present invention has the following beneficial effects:

[0068] Compared with simple water cleaning, specific alkaline and acid cleaning steps improve cleaning efficiency and the cleanliness of the glass bottle surface;

[0069] After the surface of the glass bottle is activated, the silane coupling agent forms active groups. The preheating treatment causes the surface of the glass bottle to swell slightly and the microscopic pores to increase, which is beneficial for the subsequent primer to penetrate into the pores to form a mechanical interlocking effect and enhance the bonding between the primer and the glass surface.

[0070] The introduction of the intermediate layer enhances the overall structural strength and smoothness of the coating, improves the coating's wear resistance, water resistance and chemical corrosion resistance, extends the service life of the wine bottle surface coating, and improves the durability of the wine bottle. DETAILED DESCRIPTION

[0071] The present invention is described in detail below in conjunction with embodiments. The following embodiments will help those skilled in the art to further understand the present invention, but are not intended to limit the present invention in any form. It should be noted that, for those of ordinary skill in the art, some adjustments and improvements can also be made without departing from the concept of the present invention. These all belong to the protection scope of the present invention.

[0072] Example 1

[0073] The first step is to clean the glass bottle

[0074] During the manufacturing process of glass wine bottles, some chemical agents and additives used in manufacturing are likely to remain on the surface of the glass bottles. It is also possible that they will be contaminated with impurities such as oil during transportation and storage. These impurities will block the combination of the primer and the glass surface, resulting in a weak combination. The solubility of these impurities in clean water is limited, and the cleaning effect is poor. In order to achieve a relatively clean state, repeated cleaning is required, which consumes a lot of water resources and increases water costs.

[0075] In this embodiment, alkaline washing and degreasing are first performed by using a 6% by mass NaOH solution to soak the glass bottles at 50-60°C for 20 minutes; then acid washing is performed to remove oxides by using a 4% by mass hydrochloric acid solution to soak the wine bottles at 40-50°C for 15 minutes; then the glass bottles are placed in a flowing stream of clean water to rinse for 5 minutes; finally, the glass bottles are dried at 40°C.

[0076] Step 2: Activation of the glass bottle surface

[0077] The outer surface of the cleaned glass bottle was immersed in a 3 wt.% γ-aminopropyltriethoxysilane solution for 6 minutes, and then taken out and preheated at 90° C. for 5 minutes.

[0078] The role of glass bottle surface activation is that the silane coupling agent forms active groups on the surface of the glass bottle. After preheating treatment, the surface of the glass bottle expands slightly and the microscopic pores increase, which is conducive to the subsequent spraying of the primer to better penetrate into the pores and form a mechanical interlocking effect.

[0079] The third step is to spray the metal oxide primer on the surface of the glass bottle

[0080] In this embodiment, the spraying method of the primer is:

[0081] The metal oxide primer was sprayed at an air pressure of 0.4 MPa with the nozzle kept 300 mm away from the surface of the glass bottle. The rotation speed of the bottle was 15 rpm, the moving speed was 30 cm / min, the nozzle spacing was 20 cm, and a total of 6 nozzles were set.

[0082] After the metal oxide primer was sprayed, the glass bottle was placed at 140°C to dry and cure the primer layer for 40 minutes.

[0083] More specifically, the primer in this embodiment is:

[0084] Nano titanium dioxide and nano zirconium dioxide were mixed, added into γ-aminopropyltriethoxysilane, stirred at 45°C for 2.5 hours, and then centrifuged at 7000 rpm for 15 minutes to extract the modified nano oxide.

[0085] The modified nano oxide was added to polyperfluoroacrylate, and isopropanol was added as a solvent, and stirred at 400 rpm at 35 °C for 1.5 h;

[0086] Among them, the mass ratio of nano titanium dioxide, nano zirconium dioxide, γ-aminopropyltriethoxysilane, polyperfluoroacrylate and isopropyl alcohol is 6:4:315:60:140;

[0087] Before use, the viscosity was diluted to 22 seconds with xylene to obtain a metal oxide primer.

[0088] Step 4: Spray the middle layer on the surface of the glass bottle

[0089] In this embodiment, the spraying method of the intermediate layer is:

[0090] Adjust the viscosity of the middle layer of paint to 28 seconds, and spray at an air pressure of 0.35MPa while keeping the nozzle 270mm away from the surface of the glass bottle. For other parameters, refer to the spraying process in the third step.

[0091] After the middle layer of paint is sprayed, keep it at room temperature for 10 minutes, then place it at 45℃ for 5 minutes to complete the spraying of the middle layer.

[0092] More specifically, the intermediate layer paint in this embodiment comprises: 75 parts by mass of polyurethane modified acrylate and 12 parts by mass of methyl methacrylate, and the solvent is ethyl acetate. The viscosity of the intermediate layer paint is adjusted by controlling the amount of ethyl acetate.

[0093] The introduction of the middle layer enhances the overall structural strength and smoothness of the coating. This enhancement improves the coating's wear resistance, weather resistance, and chemical corrosion resistance, thereby extending the service life of the coating on the surface of the wine bottle and improving the durability of the wine bottle.

[0094] Step 5: Spray metallic matte paint on the surface of the glass bottle

[0095] In this embodiment, the spraying method of matte paint is:

[0096] Adjust the viscosity of the matte paint to 25 seconds, and spray at an air pressure of 0.38MPa while keeping the nozzle 250mm away from the surface of the glass bottle. For other parameters, refer to the spraying process in the third step.

[0097] After the matte paint is sprayed, the glass bottle is placed at 180-190°C for curing for 50 minutes.

[0098] More specifically, in this embodiment, the matte paint comprises:

[0099] A reactant combination (dodecafluoroheptyl acrylate, hexafluorobutyl acrylate, methyl methacrylate, styrene, isooctyl acrylate, propylene glycol methyl ether acetate in a mass ratio of 1:2.8:0.6:0.65:1:5) is placed in a reaction container and mixed and stirred. After mixing evenly, the temperature is raised to 80°C. Azobisisobutyronitrile and tert-dodecyl mercaptan in a mass ratio of 1:1.2 are added dropwise to the reaction container as initiators, and the mass ratio of the initiator to the reactant combination is 1:20; the initiator is added dropwise into the reactant combination within two hours, and the stirring is continued at a speed of 200 rpm for 3 hours, and 2% of aluminum powder (D50 = 50 μm) by mass of the reactant combination is added, and stirring is continued for 1 hour, and then the mixture is kept warm at 90°C for 30 minutes; 20% of the mass of the reactant combination, 1.2% of the defoamer, 2.5% of the thickener, 1.8% of the leveling agent, and 0.4% of the pH adjuster are added, and the mixture is stirred evenly to obtain a matte paint.

[0100] Among them, the matte slurry includes: by mass fraction: 45wt.% of silicon dioxide matting powder, 3wt.% of polyethylene glycol fatty acid ester, 4.5wt.% of hydroxypropyl methylcellulose, 0.2wt.% of sodium bicarbonate, 2wt.% of propylene glycol, and the balance is water, which are stirred evenly; the defoaming agent is a silicone polyether defoaming agent; the thickener is a water-based polyurethane thickener; the leveling agent is a polyether modified polydimethylsiloxane; and the pH adjuster is diethanolamine.

[0101] Step 6: Grind and polish the surface of the glass bottle.

[0102] Embodiment 2:

[0103] The steps of this comparative example are basically the same as those of Example 1, except that:

[0104] In the second step, γ-aminopropyltriethoxysilane in the surface activation of the glass bottles was replaced with γ-glycidyloxypropyltrimethoxysilane;

[0105] In the third step, the γ-aminopropyltriethoxysilane in the metal oxide primer is replaced with γ-glycidoxypropyltrimethoxysilane.

[0106] Comparative Example 1:

[0107] The steps of this comparative example are basically the same as those of Example 1, except that:

[0108] The second step of activating the surface of the glass bottle was omitted.

[0109] Comparative Example 2:

[0110] The steps of this comparative example are basically the same as those of Example 1, except that:

[0111] Omit the fourth step of spraying the middle layer on the surface of the glass bottle.

[0112] Detection and analysis:

[0113] 1. According to GB / T 5209-85 "Determination of water resistance of paints and varnishes - Immersion method", immerse in deionized water at 40°C and observe for 25h, 50h, 75h and 100h respectively. If there is local bubbling, record the immersion time. As shown in Table 1, it can be seen that Example 1 has more excellent water resistance.

[0114] 2. According to GB / T 1768-2006 "Determination of abrasion resistance of paints and varnishes - Rotating rubber grinding wheel method", the metal matte paint was sprayed on the surface of the glass plate according to the methods of the above embodiments and comparative examples, and then the rubber grinding wheel was rotated at a speed of 50 r / min for 500 times, and the mass loss was recorded and listed in Table 1.

[0115] 3. According to GB / T 9286-2021 "Scratch Test for Paint and Varnish Film", the paint layer adhesion test was carried out by the cross-cut method. After the surface of the treated glass bottle was scratched, it was taped and torn off to observe the coating shedding. As shown in Table 1, it can be seen that Example 1 has a grade 0 adhesion.

[0116] 4. According to GB / T 1771-2007 "Determination of neutral salt spray resistance of paints and varnishes", the glass bottles were placed in a 5% sodium chloride salt spray environment and observed at 500h, 750h and 1000h. If there were local rust, blistering or peeling, the time was recorded and listed in Table 1. It can be seen that Example 1 has excellent salt spray resistance.

[0117] Table 1 Test results of embodiments and comparative examples

[0118] Test indicators Water resistance Quality loss Cross-cut Adhesion Salt spray resistance Example 1 ＞100h 78mg Level 0 ＞1000h Example 2 100h 82mg Level 1 1000h Comparative Example 1 25h 102mg Level 2 500h Comparative Example 2 50h 91mg Level 1 750h

[0119] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which do not affect the essence of the present invention.

Claims

1. A method for spraying metallic matte paint on the surface of a glass bottle, characterized in that: The method comprises: S1, cleaning glass bottles; S2, activating the surface of the glass bottle; S3, spraying a metal oxide primer on the surface of the glass bottle; S4, spraying an intermediate layer of paint on the surface of the glass bottle; S5, spraying metallic matte paint on the surface of the glass bottle; Wherein, S2 is to activate the surface of the glass bottle using a silane coupling agent solution with a concentration of 2 to 4 wt.%.

2. The method for spraying metallic matte paint on the surface of a glass bottle according to claim 1, characterized in that: In S2, the surface activation step is as follows: the glass bottle is immersed in a silane coupling agent solution for 5 to 10 minutes, and then kept warm at 80 to 100° C. for 5 to 10 minutes.

3. The method for spraying metallic matte paint on the surface of a glass bottle according to claim 1, characterized in that: The silane coupling agent is γ-aminopropyltriethoxysilane.

4. The method for spraying metallic matte paint on the surface of a glass bottle according to claim 1, characterized in that: In S4, the intermediate layer paint contains polyurethane modified acrylate, methyl methacrylate and ethyl acetate, and the mass ratio of polyurethane modified acrylate to methyl methacrylate in the intermediate layer paint is (70-80):(10-15).

5. The method for spraying metallic matte paint on the surface of a glass bottle according to claim 1, characterized in that: In S1, the cleaning step is: first soak the glass bottle in a strong alkali solution, then soak the glass bottle in a strong acid solution, and finally rinse with clean water until neutral, and dry. The mass fraction of the strong alkali solution is 5-8%, and the solute is sodium hydroxide or potassium hydroxide. The mass fraction of the strong acid solution is 4-5%, and the strong acid is one or more of hydrochloric acid, sulfuric acid, and nitric acid.

6. The method for spraying metallic matte paint on the surface of a glass bottle according to claim 1, characterized in that: In S3, the metal oxide primer contains nano titanium dioxide, nano zirconium dioxide, γ-aminopropyltriethoxysilane, polyperfluoroacrylate, isopropyl alcohol and xylene, wherein the mass ratio of nano titanium dioxide, nano zirconium dioxide, polyperfluoroacrylate and isopropyl alcohol is (3-9):(2-6):(50-70):(120-160).

7. The method for spraying metallic matte paint on the surface of a glass bottle according to claim 1, characterized in that: In S5, the matte paint comprises: a reactant combination, an initiator, metal powder, matte slurry, a defoamer, a thickener, a leveling agent, and a pH adjuster.

8. The method for spraying metallic matte paint on the surface of a glass bottle according to claim 7, characterized in that: It also includes one or more of the following technical features: A. The reactant combination includes dodecafluoroheptyl acrylate, hexafluorobutyl acrylate, methyl methacrylate, styrene, isooctyl acrylate, and propylene glycol methyl ether acetate, and the mass ratio of each substance is (0.5-1.5):(1.5-4.2):(0.3-0.9):(0.3-1):(0.5-1.5):(2.5-7.5); B. The initiator is azobisisobutyronitrile and tert-dodecyl mercaptan, and the mass ratio between the two is (0.8-1.2): (1～1.5)； C. The metal powder is aluminum powder; D. The matte paste comprises 42-48 wt.% of silicon dioxide matting powder, 2-4 wt.% of polyethylene glycol fatty acid ester, 3.5-5.5 wt.% of hydroxypropyl methylcellulose, 0.1-0.3 wt.% of sodium bicarbonate and 1-3 wt.% of glycerol, and the balance is water; E. The defoaming agent is a silicone polyether defoaming agent, the thickener is a water-based polyurethane thickener, the leveling agent is a polyether-modified polydimethylsiloxane, and the pH adjuster is diethanolamine; F. The mass ratio of the reactant combination, initiator, metal powder, dumb paste, defoamer, thickener, leveling agent and pH adjuster is 100:(2.5-7.5):(1.5-3):(15-25):(1-1.5):(2.3-2.8):(1.5-2):(0.2-0.6).

9. The method for spraying metallic matte paint on the surface of a glass bottle according to claim 1, characterized in that: It also includes one or more of the following technical features: A. The viscosity of the intermediate layer of paint during spraying is 25 to 30 seconds. The spraying parameters are 0.3 to 0.4 MPa of air pressure, and the distance between the nozzle and the surface of the glass bottle is kept at 250 to 300 mm for spraying. After completion, it is left to stand for 10 to 15 minutes, and then placed at 40 to 50° C. for 5 to 10 minutes; B. The viscosity of the metal oxide primer when used for spraying is 20 to 25 seconds. The spraying parameters are to spray at an air pressure of 0.35 to 0.45 MPa while keeping the distance between the nozzle and the surface of the glass bottle at 280 to 320 mm. After completion, place it at 135 to 145° C. for 35 to 45 minutes.

10. A spray-painted glass wine bottle, characterized in that: It is prepared according to the method for spraying metallic matte paint on a glass wine bottle as described in any one of claims 1 to 9.