Preparation method of antibacterial film, electronic atomizer and suction nozzle of electronic atomizer

Abstract

The invention provides a preparation method of an antibacterial film, an electronic atomizer and a suction nozzle of the electronic atomizer, and relates to the technical field of electronic atomization. The preparation method of the antibacterial film comprises the steps that a film coating solution is prepared, the antibacterial film is prepared on an attachment through the film coating solution, the film coating solution comprises an antibacterial agent, a coating substance and a film forming substance, the antibacterial film comprises a film body and a plurality of coating particles dispersed in the film body, and the coating particles are formed by wrapping the antibacterial agent with the coating film. According to the preparation method of the antibacterial film, the product with the antibacterial film on the body surface, such as a suction nozzle, can be prepared, so that the product has an antibacterial function, and the prepared antibacterial film is based on the design that the coating film of the coating particles wraps the antibacterial agent, so that when the coating film is gradually dissolved due to the reasons such as contact with water, the antibacterial agent can be slowly dissolved; according to the present invention, the antibacterial agent can be gradually released into the film body so as to achieve the long-term antibacterial effect of the antibacterial film, such that the product provided with the antibacterial film can utilize the plurality of the coating particles dispersed in the film body of the antibacterial film so as to achieve the good antibacterial function.

Description

Technical Field

[0001] The present application relates to the technical field of electronic atomization, and in particular to a method for preparing an antibacterial film, an electronic atomizer and a nozzle thereof. Background Art

[0002] Some utensils are prone to mold growth due to frequent contact with water vapor, which may cause these utensils to be harmful to the human body when they come into contact with the human body. For example, the nozzle of an electronic atomizer is often in contact with water vapor, which is prone to mold growth. If it is not sterilized before contact with the human body, it may be harmful to the human oral health. Therefore, related utensils usually need to be sterilized before use, such as wiping with alcohol sanitary wipes. On the one hand, this will cause inconvenience in use, such as being unable to wipe in the absence of wipes. On the other hand, sterilization before each use will also lead to increased use costs. Summary of the invention

[0003] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a method for preparing an antibacterial film, including: preparing a coating solution, the coating solution including an antibacterial agent, a coating substance and a film-forming substance, the film-forming substance is used to form a film body, and the coating substance is used to form a coating film; using the coating solution to prepare an antibacterial film on an attached object, the antibacterial film including a film body and a plurality of coated particles dispersed in the film body, the coated particles being formed by the antibacterial agent wrapped by the coating film.

[0004] In some embodiments, the preparation method includes: stirring during the preparation of the coating solution to mix in air; and drying after preparing the antibacterial film so that the air breaks through the film body and is discharged to form a plurality of adsorption holes on the film body.

[0005] In some embodiments, the coating solution further includes an ion buffer comprising ions capable of destroying the coating film.

[0006] In some embodiments, the coating material comprises a mucus having a flavonoid-containing compound.

[0007] In some embodiments, the film-forming substance includes polypropylene, polyethylene glycol, matte oil, and an ionic surfactant.

[0008] In some embodiments, in the coating solution, the content of coating material is 2.5%-3.5%, the content of polypropylene is 5%-15%, the content of polyethylene glycol is 2%-8%, the content of matte oil is 0.5%-1.5%, the content of ionic surfactant is 5%-7%, the content of ionic buffer is 2%-8%, and the content of antibacterial agent is 5%-15%.

[0009] In some embodiments, the antibacterial agent includes an antibacterial substance dissolved in a solvent, the antibacterial substance includes clove extract and tea extract, and the content of the antibacterial substance in the antibacterial agent is 12%-20%.

[0010] In some embodiments, the antibacterial substances specifically include eugenol, vanillin, p-allylphenol, tea polyphenols, caffeine and catechins. Among the antibacterial substances, the content of eugenol is 18%-24%, the content of vanillin is 11%-17%, the content of p-allylphenol is 15%-21%, the content of tea polyphenols is 11%-17%, the content of caffeine is 8%-14%, and the content of catechins is 18%-24%.

[0011] Another technical solution adopted in the present application is: to provide a nozzle, which includes a main body and an antibacterial film, and the antibacterial film is arranged on the surface of the main body; wherein the antibacterial film is prepared by the above-mentioned method for preparing the antibacterial film; or, the antibacterial film includes a film body and a plurality of coated particles, the coated particles are dispersed in the film body, and the coated particles include a coating film and an antibacterial agent located in the coating film.

[0012] In some embodiments, a plurality of adsorption holes are provided on the membrane body.

[0013] Another technical solution adopted by the present application is to provide an electronic atomizer, which includes the above-mentioned nozzle.

[0014] Different from the prior art, the beneficial effects of this application are:

[0015] The present application configures a coating solution including an antimicrobial agent, a coating substance and a film-forming substance, and uses the coating solution to prepare an antimicrobial film on the body of the nozzle or other attachments, so as to produce a product with an antimicrobial film on the surface of a body such as a nozzle, so that the product itself has an antimicrobial function and does not need to be sterilized before use; and the antimicrobial film prepared by the present application through the above method is based on the design of the coating film of the coated particles encapsulating the antimicrobial agent. When the coating film gradually dissolves due to contact with moisture or other reasons, the antimicrobial agent can be gradually released into the film body, thereby achieving a long-term antimicrobial effect of the antimicrobial film, so that the product with the antimicrobial film can utilize multiple coated particles dispersed in the film body of the antimicrobial film to achieve good antimicrobial function. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0017] Figure 1is a schematic diagram of the structure of an electronic atomizer provided in some embodiments of the present application;

[0018] Figure 2 is a schematic diagram of the structure of a nozzle body provided in some embodiments of the present application;

[0019] Figure 3 is a schematic diagram of a cross-sectional structure of a nozzle provided in some embodiments of the present application;

[0020] Figure 4 This is a schematic diagram of the structure of the antibacterial film provided in some embodiments of the present application.

[0021] Figure 5 is a schematic flow chart of a method for preparing an antibacterial film provided in some embodiments of the present application;

[0022] Figure 6 It is a schematic diagram of the process of preparing the antibacterial film provided in some embodiments of the present application. DETAILED DESCRIPTION

[0023] In the following description, specific details such as specific system structures, technologies, etc. are provided for the purpose of illustration rather than limitation, so as to provide a thorough understanding of the embodiments of the present application. However, it should be clear to those skilled in the art that the present application may also be implemented in other embodiments without these specific details. In other cases, detailed descriptions of well-known systems, devices, circuits, and methods are omitted to prevent unnecessary details from obstructing the description of the present application.

[0024] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are described in detail below in conjunction with the accompanying drawings. It is understood that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without making creative work are within the scope of protection of the present application.

[0025] The embodiment of the present application provides a nozzle and an electronic atomizer. The nozzle can be used as a part of the electronic atomizer to draw atomized gas. Of course, the nozzle can also be used in other devices. Figure 1 , Figure 1 It is a schematic diagram of the structure of the electronic atomizer provided in some embodiments of the present application.

[0026] In some embodiments, the electronic atomizer 10 may include a nozzle 11. The electronic atomizer 10 may also include an atomizing mechanism 12, and the nozzle 11 may be arranged on the atomizing mechanism 12. Among them, a device for converting the atomized matrix into atomized gas may be provided inside the atomizing mechanism 12. The nozzle 11 is provided with an output port 101. The output port 101 can be connected to the internal space of the atomizing mechanism 12. The atomized gas generated by the atomizing mechanism 12 can be output through the output port 101, so that the nozzle 11 can be used to inhale the atomized gas. In other embodiments, the nozzle 11 of the electronic atomizer 10 is not limited to the above-mentioned arrangement.

[0027] It is understandable that the function of the suction nozzle 11 determines that it needs to be in contact with the lips, so the surface of the suction nozzle 11 is easily in contact with water vapor. When the suction nozzle 11 is applied to the electronic atomizer 10, it may generate heat during use, causing the water vapor to easily form small droplets and adhere to the surface of the suction nozzle 11 when it contacts the suction nozzle 11. In addition, when the suction nozzle 11 is exposed to the air for a long time, the external water vapor may also form a water film on the surface of the suction nozzle 11. Based on the above reasons, the suction nozzle 11 may often contact water vapor, which is easy to breed bacteria, such as mold. Moreover, when the suction nozzle 11 is placed for a long time, it is also easy to breed bacteria due to contamination with impurities such as dust.

[0028] In order to prevent bacteria on the surface of the nozzle 11 from damaging oral health, the commonly used method is to wipe the surface of the nozzle 11 with an alcohol wipe before using it, or to cover the nozzle 11 with a protective cover when the nozzle 11 is not in use. The former will cause inconvenience in use and increase the cost of use, and the latter can only reduce the contact of the nozzle 11 with water vapor and external impurities, but the nozzle 11 may still breed bacteria. The method provided in the embodiment of the present application is to perform antibacterial treatment on the surface of the nozzle 11 so that the nozzle 11 has antibacterial function, so that the nozzle 11 is not easy to mold even if it is in contact with water vapor for a long time.

[0029] See also Figure 2 , Figure 2 It is a schematic diagram of the structure of the nozzle body provided in some embodiments of the present application.

[0030] In some embodiments, the body 100 of the nozzle 11 may include an inner wall 110 and an outer wall 120, and the outer wall 120 is located on the periphery of the inner wall 110. The inner wall 110 may be arranged to form an output port 101. The outer wall 120 may form the appearance surface of the nozzle 11. Among them, the inner wall 110 may be in contact with the refluxed condensate, and the outer wall 120 may be in contact with the external water vapor, both of which may breed bacteria. The nozzle 11 provided in the embodiment of the present application may perform antibacterial treatment on both the inner wall 110 and the outer wall 120 to improve the overall antibacterial effect of the nozzle 11.

[0031] See also Figure 3 , Figure 32 is a schematic diagram of a cross-sectional structure of a nozzle provided in some embodiments of the present application. The antibacterial treatment adopted in the embodiments of the present application may be to provide an antibacterial film 200 on the surface of the body 100 of the nozzle 11 .

[0032] In some embodiments, the nozzle 11 includes a body 100 and an antibacterial film 200, and the antibacterial film 200 is disposed on the surface of the body 100. The antibacterial film 200 can inhibit the proliferation or kill bacteria, molds, algae, and even viruses contaminated on the surface of the body 100, and keep itself clean by inhibiting the reproduction of microorganisms, thereby achieving the sterilization of the nozzle 11 and protecting oral health. In some embodiments, the antibacterial film 200 can be disposed on the inner wall 110 and the outer wall 120 of the body 100. In some embodiments, the antibacterial film 200 on the inner wall 110 and the outer wall 120 can be an integral structure. In other words, the antibacterial film 200 can be regarded as extending from the inner wall 110 to the outer wall 120.

[0033] The embodiment of the present application sets the antibacterial film 200 on the surface of the body 100 of the nozzle 11, thereby preventing water vapor from directly contacting the body 100 and preventing bacteria from growing on the body 100. The antibacterial film 200 itself has an antibacterial effect, which can inhibit the growth of bacteria and achieve the sterilization of the nozzle 11.

[0034] See also Figure 4 , Figure 4 It is a schematic diagram of the structure of the antibacterial film provided in some embodiments of the present application.

[0035] In some embodiments, the antimicrobial film 200 may include a film body 210 and a plurality of coated particles 211, wherein the coated particles 211 include a coating film 220 and an antimicrobial agent 230 located in the coating film 220. The coated particles 211 are dispersed in the film body 210. During the use of the suction nozzle 11, moisture will contact the film body 210 of the antimicrobial film 200 and penetrate into the interior of the film body 210. The coating film 220 inside the film body 210 will gradually dissolve due to contact with moisture and other reasons, and then gradually release the antimicrobial agent 230 into the film body 210. The antimicrobial agent 230 can inhibit the proliferation or kill bacteria, molds, algae, and even viruses contaminated on the film body 210, so as to achieve the sterilization of the suction nozzle 11.

[0036] The dissolution of the coating film 220 is a gradual process, which allows the antibacterial agent 230 stored in the coating film 220 to be released into the film body 210 little by little, thereby achieving a long-term antibacterial effect of the antibacterial film 200. The plurality of coating particles 211 dispersed in the film body 210 can make each area of ​​the antibacterial film 200 have a good antibacterial effect.

[0037] In some embodiments, a plurality of adsorption holes 201 may be provided on the film body 210. The adsorption holes 201 may be micropores. The adsorption holes 201 may be used to adsorb moisture to increase the moisture in contact with the coating film 220, thereby accelerating the dissolution of the coating film 220, accelerating the release of the antibacterial agent 230, and improving the antibacterial effect of the antibacterial film 200.

[0038] In some embodiments, the adsorption holes 201 may be disposed on the membrane body 210 on the inner wall 110 , so that the adsorption holes 201 may be used to adsorb both the refluxed condensate and the antibacterial substances in the atomized gas.

[0039] It should be noted that the atomized gas converted from the atomized matrix usually contains antibacterial and antibacterial substances, such as vanillin, polyphenols, phenols, flavonoids, ester compounds, terpenoid compounds, etc. The antibacterial mechanism of these antibacterial substances is as follows: destroying and degrading pectin and cellulose in the cell wall of bacteria and fungi or inhibiting the synthesis of peptidoglycan in the cell wall; changing the permeability of fungal cell membranes or directly destroying cell membranes; weakening the motility of protons in molecules and weakening bacterial activity; causing cytoplasm to agglutinate and then inactivate bacteria and fungi; inhibiting or even killing bacteria and fungi by acting on the enzyme system, functional proteins, genetic material or genetic particle structure in the cells of such bacteria.

[0040] The embodiment of the present application can enhance the antibacterial effect of the antibacterial film 200 by opening a plurality of adsorption holes 201 on the film body 210 disposed on the inner wall 110, so that the adsorption holes 201 can adsorb the antibacterial substances that may be contained in the film body 210 when the film body 210 contacts the output atomized gas and the refluxed condensate. In addition, since the atomized gas is usually converted by heating the atomized matrix and has a relatively high temperature, the temperature of the antibacterial film 200 can be increased when it contacts the antibacterial film 200 disposed on the inner wall 110, so that the surface activity of the antibacterial film 200 is increased, and the antibacterial substances in the film are more fully fused. Therefore, each time the nozzle 11 draws the atomized gas, the release rate of the antibacterial agent 230 can be accelerated, thereby improving the overall antibacterial effect. Of course, the adsorption holes 201 can also be opened on the film body 210 disposed on the outer wall 120.

[0041] The embodiment of the present application further provides a method for preparing an antibacterial film, which can be used to prepare the antibacterial film 200 of the nozzle 11 mentioned above.

[0042] See also Figure 5 , Figure 5 It is a schematic diagram of the process of preparing the antibacterial film provided in some embodiments of the present application.

[0043] In some embodiments, the method for preparing the antibacterial film comprises:

[0044] Step S11, preparing a coating solution.

[0045] In step S11, the prepared coating solution may include an antibacterial agent, a coating material and a film-forming material. The film-forming material is used to form a film body of the antibacterial film. The coating material is used to form a coating film of the antibacterial film. The formula of the coating solution will be described in detail below.

[0046] Step S12: using the coating solution to prepare an antibacterial film on the attached object.

[0047] In step S12, the prepared antibacterial film may include a film body and a plurality of coated particles dispersed in the film body. The coated particles are formed by coating the antibacterial agent with the coating film. The attachment of the antibacterial film may be the body of the nozzle, and the details may be referred to above and will not be described here. The attachment may be made of plastic.

[0048] In the process of preparing the antibacterial film, the surface of the attachment may be pre-treated first. The pre-treatment may include disinfecting, cleaning and wiping the surface of the attachment first, and then activating and chemically modifying the surface of the attachment.

[0049] Among them, activation is based on the principle of using electrical energy to generate free radicals. Plasma is used to bombard the surface of the attachment, so that the chemical bonds on the surface of the attachment are bombarded by the high-energy-density active particles in the plasma and opened, thereby generating a large number of free radicals on the surface of the material. Free radicals are highly active and easily react with the surrounding free radicals (divided into free radical coupling and free radical chain transfer), and recombine to form a dense network cross-linking layer. These network structures will increase the surface roughness of the material, increase the adhesion of the non-polar polymer plastic surface to a certain extent, and change the physical and chemical properties of the material.

[0050] Chemical modification is to introduce specific functional groups on the surface of the attachment by chemical methods to improve the performance or function of the coating. The chemical modification used in this embodiment can be chromium salt-sulfuric acid method (Cr-H2SO4), the principle of which is to use the strong oxidizing property of the oxidant to oxidize the surface of the material and connect polar groups such as carbonyl, carboxyl, acetylene, sulfonic acid, etc. to improve the film-forming performance.

[0051] After the pre-treatment is completed, the present embodiment can use ion plating or electrophoretic deposition to ionize the plating solution and deposit it on the surface of the attachment by plasma or electrophoresis. After the film is formed, the surface can be polished and ground.

[0052] Please combine Figure 5 See also Figure 6 , Figure 6 It is a schematic diagram of the process of preparing the antibacterial film provided in some embodiments of the present application.

[0053] In some embodiments, the method for preparing the antimicrobial film may include:

[0054] Step S21, stirring the coating solution to mix air.

[0055] Step S21 can be performed in the above step S11. In other words, in this embodiment, stirring can be performed during the process of preparing the coating solution to mix air into the coating solution. Specifically, the mixing of air can be achieved by selecting a specific stirring device, controlling the stirring angle and speed, etc. Of course, step S21 can also be performed after step S11 is completed, that is, after the coating solution is prepared, the coating solution is stirred to mix air.

[0056] Step S22, using the coating solution to prepare an antibacterial film on the attached object. This step can refer to the above step S12 and will not be described in detail. It can be understood that the antibacterial film prepared in step S22 contains the air mixed in step S21.

[0057] Step S23, drying the antibacterial film so that the air in the film is discharged to form adsorption holes. In this step, the attachment to which the antibacterial film is attached can be disturbed by methods such as but not limited to oven baking, hot air drying, etc., so that the air in the antibacterial film can break through the film body and be discharged, so as to form a plurality of adsorption holes on the film body of the antibacterial film. The role of the adsorption holes has been described in detail above and will not be repeated here. This embodiment provides a method for forming adsorption holes, which has the advantages of low cost, low difficulty, and high efficiency. It can be understood that other embodiments of the present application may also use other methods to manufacture adsorption holes, such as ion bombardment.

[0058] Please continue reading Figure 5 In some embodiments, the coating material in the coating solution configured in step S11 may include mucus containing flavonoid compounds, so that the coating material itself also has an antibacterial effect. For example, the coating material may include cactus mucus. The main components of cactus mucus include galactose and arabinose. The cactus mucus can wrap the antibacterial agent in the coating solution, and form a coating film that wraps the antibacterial agent in step S12.

[0059] In some embodiments, the antibacterial agent may include an antibacterial substance. The antibacterial substance of the antibacterial agent may include clove extract and tea extract. The antibacterial substance may be dissolved in a solvent. The solvent of the antibacterial agent may be a propylene glycol solvent, which is used as an example for explanation below. Of course, the antibacterial agent may also use other solvents that can dissolve the antibacterial substance. The antibacterial agent may use the same solvent as the coating solution.

[0060] The clove extract and the tea extract can be obtained by: subjecting the cloves and the tea leaves to steam distillation extraction respectively; then purifying, for example, extracting impurities with a sodium hydroxide solution; and then drying and crystallizing, thereby obtaining crystalline solids of the clove extract and the tea leaf extract.

[0061] Optionally, the content of the antibacterial substance in the antibacterial agent is 12%-20%, such as 13%, 15%, 17%, 19%, etc. By controlling the content of the antibacterial substance in the antibacterial agent to the above values, the antibacterial agent can have a good antibacterial effect. The embodiments of the present application provide some experimental data as follows:

[0062] First, the crystalline solids of clove extract and tea extract were mixed in a 1:1 mass ratio. Then, propylene glycol solvent was used to prepare 2 portions of antibacterial agent solutions with antibacterial substance (mixed clove extract and tea extract) content of 1%, 2%, 3%, 5%, 10%, 15%, 25%, 35%, and 45%, respectively, for a total of 18 portions, and allowed to stand. Then, these 18 portions of antibacterial agent solutions were applied to nine culture dishes exposed to air, and cultured at a suitable temperature, and observed and recorded every day for one week.

[0063] The experimental results are as follows: the nine culture dishes smeared with antibacterial solutions with antibacterial content of 1%, 2%, 3%, 5%, 10%, 15%, 25%, 35%, and 45%, respectively, have colony counts of 35, 19, 13, 5, 3, 0, 7, 8, and 13. According to the statistical results, the antibacterial agent made with the antibacterial extract at a ratio of 15% has the best effect, and the number of colonies in the culture medium is the least, so this solution is selected as the antibacterial agent. The embodiments of the present application have also been tested by multiple similar tests, and it is found that when the content of the antibacterial substance in the antibacterial agent is 12%-20%, the antibacterial effect of the antibacterial agent is better.

[0064] In some embodiments, the specific components of the antibacterial substance may include eugenol, vanillin, p-allylphenol, tea polyphenols, caffeine and catechins. The above components are partial extracts of cloves and tea leaves. The present application embodiment has concluded through component analysis that the above components in the antibacterial substance are antibacterial active ingredients and have good antibacterial effects.

[0065] In the antibacterial substance, the content of eugenol can be 18%-24%, such as 19%, 21%, 23%, etc. The content of vanillin can be 11%-17%, such as 12%, 14%, 16%, etc. The content of p-allylphenol can be 15%-21%, such as 16%, 18%, 20%, etc. The content of tea polyphenols is 11%-17%, such as 12%, 14%, 16%, etc. The content of caffeine is 8%-14%, such as 9%, 11%, 13%, etc. The content of catechin is 18%-24%, such as 19%, 21%, 23%, etc. The sum of the contents of eugenol, vanillin, p-allylphenol, tea polyphenols, caffeine and catechin in the antibacterial substance can be 100%. The above-mentioned composition ratio of the antibacterial agent can be obtained by gas chromatography-mass spectrometry (GC-MS) using a gas analyzer.

[0066] In some embodiments, the formula of the antibacterial agent can be: using propylene glycol solution as a solvent, dissolving 0.3g of eugenol, 0.2g of vanillin, 0.25g of p-allylphenol, 0.2g of tea polyphenols, 0.15g of caffeine, and 0.3g of catechins to prepare an antibacterial agent solution with an antibacterial substance content of 15%. After multiple antibacterial results were verified by experiments, multiple culture dishes coated with the antibacterial agent solution did not produce colonies after being exposed to air for a long time in a suitable environment.

[0067] The embodiment of the present application adds the above-mentioned coating material and antibacterial agent to the plating solution, so that the prepared antibacterial film includes a plurality of coated particles dispersed in the film body, and the coated particles are formed by the coating film and the antibacterial agent wrapped therein, so that as the coating film gradually dissolves, the antibacterial agent of the coated particles can be gradually released to inhibit the formation of bacteria on the film body and achieve the long-term antibacterial effect of the antibacterial film. Therefore, the product provided with the antibacterial film can utilize the plurality of coated particles dispersed in the film body of the antibacterial film to achieve good antibacterial function.

[0068] In some embodiments, the coating solution configured in step S11 may also include an ion buffer, which contains ions that can destroy the coating film. For example, the ion buffer may be a sodium hydrogen phosphate ion buffer containing phosphate ions. Under the activation of moist water and ions, the coating film of the antibacterial film will be dissolved and the antibacterial agent will be released. The ions in the film body can promote the dissolution of the coating film, increase the release rate of the antibacterial agent, and thus enhance the antibacterial effect of the antibacterial film.

[0069] The coating solution to which the ion buffer is added can be used to prepare an antibacterial film with ion fluidity in step S12. When the consumption of coated particles in a local area of ​​the antibacterial film is relatively large, the characteristics of ion flow can achieve a balance in the concentration of the antibacterial agent in the film body, so that the coated particles in different areas of the film body can participate in the antibacterial reaction, which is beneficial to improving the overall antibacterial ability of the antibacterial film and extending the service life of the antibacterial film. In some embodiments, the antibacterial film can be formed on the inner and outer walls of the nozzle body, and is an integrated structure, so that the antibacterial film can provide an antibacterial effect for both the inner and outer walls of the nozzle body based on the above-mentioned ion flow characteristics. In some embodiments, the adsorption holes on the film body of the antibacterial film can absorb moisture, which is beneficial to further improve the ion fluidity of the antibacterial film.

[0070] In some embodiments, the film-forming substance included in the coating solution configured in step S11 may include polypropylene (PP). Polypropylene can be used as an adhesive to improve the film-forming effect. The film-forming substance may include a solvent for dissolving each component. The solvent may be a propylene glycol solvent, which has a good dissolving effect. Of course, the solvent of the film-forming substance may also be other solvents that can dissolve each component.

[0071] The film-forming material may include polyethylene glycol (PEG). Polyethylene glycol can improve the uniformity of the electroplated layer and improve the filling power during the electroplating film formation process. Specifically, polyethylene glycol has good lubricity and dispersibility, which can improve the fluidity of the plating solution, making the electroplating process more uniform. Polyethylene glycol can also improve the filling power, especially in acidic solutions. The increase in the molecular weight of polyethylene glycol can significantly improve the filling power of micropores, so that the electroplated film has better overall quality and performance.

[0072] The film-forming substance may include matte oil. Matte oil can make the surface of the film present a soft and non-glaring appearance, while protecting the electroplated layer, preventing the film layer from oxidizing and turning black after contact with air, and can increase the hardness of the product surface to ensure that the electroplated product can meet the weather resistance performance under various conditions.

[0073] The film-forming substance may include an ionic surfactant. Ionic surfactants can improve the physical and chemical properties of the coating, improve the efficiency of the electroplating process and the quality of the product. In the configuration of the coating solution, a cationic surfactant may be added, such as a mixture of lecithin and alanine amino acid, in which lecithin exhibits the properties of a cationic surfactant. Cationic surfactants can reduce the surface tension of the coating solution, prevent the film layer from producing dents, pits and pinholes, and improve the bonding effect between the film layer and the substrate.

[0074] It should be understood that the terms "including" and "having" and any variations thereof used in the present specification and the appended claims are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0075] In some embodiments, the film-forming substance in the coating solution may include polypropylene, polyethylene glycol, matte oil, a mixture of lecithin and propylamino acid as an ionic surfactant, and a sodium hydrogen phosphate ion buffer.

[0076] In the coating solution, the content of polypropylene can be 5%-15%, such as 6%, 8%, 10%, 12%, 14%, etc. The content of polyethylene glycol can be 2%-8%, such as 3%, 5%, 7%, etc. The content of matte oil can be 0.5%-1.5%, such as 0.6%, 0.8%, 1.0%, 1.2%, 1.4%, etc. The content of ionic surfactant can be 5%-7%, such as 5.5%, 6%, 6.5%, etc.

[0077] In the coating solution, the content of the coating material can be 2.5%-3.5%, such as 2.7%, 3%, 3.2%, etc. The coating material can be cactus mucus. The content of the ion buffer can be 2%-8%, such as 3%, 5%, 7%, etc. The ion buffer can be a sodium hydrogen phosphate ion buffer. The content of the antibacterial agent can be 5%-15%, such as 6%, 8%, 10%, 12%, 14%, etc. The remaining components of the coating solution can be solvents, such as propylene glycol solvents.

[0078] The present application provides some experimental data as follows:

[0079] In some embodiments of the present application, five coating solutions are provided in step S11, which are marked as A, B, C, D, and E, respectively. The proportions of each group of the five coating solutions are as follows:

[0080]

[0081] In the present embodiment, the above five coating solutions are used to prepare antibacterial films on different nozzle bodies, thereby obtaining five nozzles with antibacterial functions, which are marked as nozzle A, nozzle B, nozzle C, nozzle D, and nozzle E. The five nozzles are tested for antibacterial properties:

[0082] (1) Under the same 70% humidity environment, observe and record the molded nozzles at different temperatures such as 0°C, 10°C, 20°C, 30°C, and 40°C every day for half a month to observe whether they are moldy and whether there are other colonies on the surface.

[0083] (2) Install the nozzle to the application equipment, perform suction, and observe whether small droplets are formed on the antibacterial film.

[0084] (3) Perform an accelerated test on the nozzles by placing them in a 100°C heating drying oven to simulate the performance of the nozzles after being placed for a long time. After three days, check whether the antibacterial film falls off.

[0085] The experimental results are as follows:

[0086]

[0087] The experimental results show that the antibacterial film made from the coating solution marked as C has the best effect. The antibacterial film on the nozzle C has good antibacterial ability, liquid absorption ability and adhesion stability. The embodiment of the present application has also been tested by multiple similar tests, and it is found that when the coating substance content of the coating solution is 2.5%-3.5%, the content of polypropylene is 5%-15%, the content of polyethylene glycol is 2%-8%, the content of matte oil is 0.5%-1.5%, the content of ionic surfactant is 5%-7%, the content of ionic buffer is 2%-8%, and the content of antibacterial agent is 5%-15%, the test results of the antibacterial film made from the coating solution are good.

[0088] The embodiment of the present application can prepare an antibacterial film with good antibacterial effect, liquid absorption capacity and adhesion stability on the nozzle body or other attachments through the above-mentioned preparation method of the antibacterial film, thereby preparing a product with an antibacterial film on the surface of the nozzle body, etc., so that the product itself has an antibacterial function and does not need to be sterilized before use. The antibacterial film prepared by the above-mentioned method in the embodiment of the present application is based on the design of the coating film of the coated particles containing the antibacterial agent, so that the coating film of the coated particles dissolves under the activation of moist water and ions, and gradually releases the antibacterial agent into the film body, which can achieve a long-term antibacterial effect of the antibacterial film, so that the product with the antibacterial film can use a plurality of coated particles dispersed in the film body of the antibacterial film to achieve a good antibacterial function.

[0089] It should be understood that the terms used in the specification of this application and the attached claims are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the specification of this application and the attached claims, unless the context clearly indicates otherwise, the singular forms of "one", "an" and "the" are intended to include plural forms. As another example, the terms "first" and "second" in the description of this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. As another example, the meaning of "multiple" in the description of this application is two or more, unless otherwise clearly and specifically defined.

[0090] In the description of the present application, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradicting each other.

[0091] The above description is only part of the implementation methods of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the description and drawings of this application, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for preparing an antibacterial film, characterized in that: include: A coating solution is provided, wherein the coating solution comprises an antibacterial agent, a coating substance and a film-forming substance, wherein the film-forming substance is used to form a film body, and the coating substance is used to form a coating film; The antibacterial film is prepared on the attached object by using the coating solution. The antibacterial film comprises the film body and a plurality of coated particles dispersed in the film body. The coated particles are formed by the antibacterial agent wrapped by the coating film.

2. The method for preparing the antibacterial film according to claim 1, characterized in that: The preparation method comprises: Stirring during the preparation of the coating solution to mix air; After the antibacterial film is prepared, it is dried so that the air breaks through the film body and is discharged, thereby forming a plurality of adsorption holes on the film body.

3. The method for preparing the antibacterial film according to claim 1, characterized in that: The coating solution further comprises an ion buffer, wherein the ion buffer comprises ions capable of destroying the coating film.

4. The method for preparing the antibacterial film according to claim 3, characterized in that: The coating material includes mucus having flavonoid-containing compounds.

5. The method for preparing the antibacterial film according to claim 4, characterized in that: The film-forming substance comprises polypropylene, polyethylene glycol, matte oil and ionic surfactant.

6. The method for preparing the antibacterial film according to claim 5, characterized in that: In the plating solution, the content of the coating substance is 2.5%-3.5%, the content of the polypropylene is 5%-15%, the content of the polyethylene glycol is 2%-8%, the content of the matte oil is 0.5%-1.5%, the content of the ionic surfactant is 5%-7%, the content of the ionic buffer is 2%-8%, and the content of the antibacterial agent is 5%-15%.

7. The method for preparing the antibacterial film according to claim 1, characterized in that: The antibacterial agent comprises antibacterial substances, which include clove extract and tea extract. The content of the antibacterial substances in the antibacterial agent is 12%-20%.

8. The method for preparing the antibacterial film according to claim 7, characterized in that: The antibacterial substances specifically include eugenol, vanillin, p-allylphenol, tea polyphenols, caffeine and catechins. Among the antibacterial substances, the content of eugenol is 18%-24%, the content of vanillin is 11%-17%, the content of p-allylphenol is 15%-21%, the content of tea polyphenols is 11%-17%, the content of caffeine is 8%-14%, and the content of catechins is 18%-24%.

9. A suction nozzle, characterized in that: The nozzle comprises a body and an antibacterial film, wherein the antibacterial film is arranged on the surface of the body; Wherein, the antibacterial film is prepared by the method for preparing the antibacterial film according to any one of claims 1 to 8; or, The antibacterial film comprises a film body and a plurality of coated particles, wherein the coated particles are dispersed in the film body, and the coated particles comprise a coating film and an antibacterial agent located in the coating film.

10. The suction nozzle according to claim 9, characterized in that: The membrane body is provided with a plurality of adsorption holes.

11. An electronic atomizer, characterized in that: The electronic atomizer comprises the nozzle as described in any one of claims 9-10.

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