阅读说明：本技术 一种抗菌镀膜镜片及抗菌眼镜 (Antibacterial coated lens and antibacterial glasses ) 是由 周杨 于 2021-03-03 设计创作，主要内容包括：本发明涉及一种抗菌镀膜镜片及抗菌眼镜。抗菌镀膜镜片包括基片,基片的外表面依次设有第一强化层,第一纳米银层,交替层叠的第一二氧化钛层和第一二氧化硅层,层叠的层数为n,n≥1,其中第一二氧化钛层与第一纳米银层相贴合；基片的内表面依次设有第二强化层,第二纳米银层,第二二氧化钛层,第二二氧化硅层。该镜片在正常光照条件下对大肠杆菌、金黄色葡萄球菌、白色念珠菌和和化脓性链球菌的抗菌率均大于99.9％,在光照不足时由纳米银层发挥主要抗菌作用,具有超强抗菌的效果,同时各层结合力高,抗菌效果持久,透光率好。(The invention relates to an antibacterial film-coated lens and an antibacterial glasses. The antibacterial coated lens comprises a substrate, wherein the outer surface of the substrate is sequentially provided with a first strengthening layer, a first nano silver layer, a first titanium dioxide layer and a first silicon dioxide layer which are alternately laminated, the number of the laminated layers is n, n is more than or equal to 1, and the first titanium dioxide layer is attached to the first nano silver layer; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer and a second silicon dioxide layer. The lens has the antibacterial rate of more than 99.9% to escherichia coli, staphylococcus aureus, candida albicans and streptococcus pyogenes under the normal illumination condition, the nano silver layer plays a main antibacterial role when the illumination is insufficient, the lens has a super-strong antibacterial effect, and meanwhile, the bonding force of each layer is high, the antibacterial effect is lasting, and the light transmittance is good.)

1. The antibacterial coated lens is characterized by comprising a substrate, wherein the outer surface of the substrate is sequentially provided with a first strengthening layer, a first nano silver layer, a first titanium dioxide layer and a first silicon dioxide layer which are alternately laminated from the substrate, the number of the laminated layers is n, n is more than or equal to 1, and the first titanium dioxide layer is attached to the first nano silver layer; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer and a second silicon dioxide layer from the substrate.

2. The coated antimicrobial lens of claim 1 further comprising a first hydrophobic and oleophobic layer covering the first silica layer and a second hydrophobic and oleophobic layer covering the second silica layer.

3. An antibacterially coated lens as claimed in claim 1 or claim 2 wherein n is 2 or more.

4. The coated antimicrobial lens of claim 3, wherein n is 3 or more.

5. The antibacterial coated lens according to claim 1 or 2, wherein the thickness of the first nano silver layer is 0.1-1 μm, the thickness of the first titanium dioxide layer is 0.5-10 μm, the thickness of the first silica layer is 1-20 μm, the thickness of the second nano silver layer is 0.1-1 μm, the thickness of the second titanium dioxide layer is 0.5-10 μm, and the thickness of the second silica layer is 1-20 μm.

6. A method for preparing an antibacterial coated lens as claimed in claim 1, which comprises the following steps:

step 1: cleaning the substrate;

step 2: dipping the cleaned substrate in a strengthening solution, pulling and drying to form a strengthening layer to obtain a strengthened substrate;

and step 3: directly putting the reinforced substrate into an oven for drying, wherein the temperature of the oven is 50-55 ℃, and the time duration is 0.5-3 hours, so as to obtain a dried substrate;

and 4, step 4: arranging the dried substrate on a film coating frame, putting the substrate into a vacuum chamber, vacuumizing to 7.0 multiplied by 10^-5When the argon amount reaches 30-35sccm, the ion gun starts working on the surface of the substrate for 120-150s, and the ion gun parameters are as follows: cleaning the surface of the substrate and roughening the surface of the substrate by using a voltage 145-155V, a current 125-135A, a filament 30-40A and an emission current 6-7A;

and 5: evaporation;

evaporating a nano silver layer: continuously vacuumizing to 3.5X 10^-5Charging oxygen to enable the oxygen concentration to reach 50-60sccm, adopting Ag, enabling the current of an electron gun to be 70-100 mA, enabling the evaporation rate to be 6-8A/S, and evaporating a nano silver layer on the surface of the substrate to obtain a substrate A;

evaporating a titanium dioxide layer: charging oxygen to make oxygen concentration reach 50-60sccm, and adopting TiO₂Evaporating a titanium dioxide layer on the surface of the substrate A to obtain a substrate B, wherein the current of an electron gun is 280-320 mA, the evaporation rate is 2-4A/S;

evaporating a silicon dioxide layer: by means of SiO₂And (3) evaporating a silicon dioxide layer on the surface of the substrate B to obtain a substrate C, namely the antibacterial coated lens, wherein the current of the electron gun is 70-100 mA, the evaporation rate is 6-8A/S.

7. A method for preparing an antibacterial coated lens as claimed in claim 2, which comprises the following steps:

step 1: cleaning the substrate;

step 2: dipping the cleaned substrate in a strengthening solution, pulling and drying to form a strengthening layer to obtain a strengthened substrate;

and step 3: directly putting the reinforced substrate into an oven for drying, wherein the temperature of the oven is 50-55 ℃, and the time duration is 0.5-3 hours, so as to obtain a dried substrate;

and 4, step 4: arranging the dried substrate on a film coating frame, putting the substrate into a vacuum chamber, vacuumizing to 7.0 multiplied by 10^-5When the argon amount reaches 30-35sccm, the ion gun starts working on the surface of the substrate for 120-150s, and the ion gun parameters are as follows: cleaning the surface of the substrate and roughening the surface of the substrate by using a voltage 145-155V, a current 125-135A, a filament 30-40A and an emission current 6-7A;

and 5: evaporation;

evaporating a nano silver layer: continuously vacuumizing to 3.5X 10^-5Charging oxygen to enable the oxygen concentration to reach 50-60sccm, adopting Ag, enabling the current of an electron gun to be 70-100 mA, enabling the evaporation rate to be 6-8A/S, and evaporating a nano silver layer on the surface of the substrate to obtain a substrate A;

evaporating a titanium dioxide layer: charging oxygen to make oxygen concentration reach 50-60sccm, and adopting TiO₂Evaporating a titanium dioxide layer on the surface of the substrate A to obtain a substrate B, wherein the current of an electron gun is 280-320 mA, the evaporation rate is 2-4A/S;

evaporating a silicon dioxide layer: by means of SiO₂Evaporating a silicon dioxide layer on the surface of the substrate B to obtain a substrate C, wherein the current of an electron gun is 70-100 mA, and the evaporation rate is 6-8A/S;

evaporating a hydrophobic oil-repellent layer: and (3) adopting an active siloxane group fluorine modified polymer nano material, wherein the current of an electron gun is 20-40 mA, the evaporation rate is 1-3A/S, and evaporating the active siloxane group fluorine modified polymer nano material on the surface of the substrate C to obtain a substrate D, namely the antibacterial coated lens.

8. The method for preparing antibacterial coated lenses according to claim 6 or 7, wherein the cleaning in step 1 comprises nine cleaning steps, wherein the first cleaning step is performed for 60-120s by using a cleaning agent consisting of 2-5 wt.% neutral degreasing agent, 3-5 wt.% surfactant and normal-temperature ultrapure water; cleaning with normal-temperature ultrapure water for 60-120s in the second step; the third cleaning step is to clean the fabric for 60 to 120 seconds by adopting a cleaning agent consisting of 1 to 3 weight per thousand of neutral degreasing agent, 2 to 4 weight per thousand of surfactant and normal-temperature ultrapure water; cleaning the fourth to eighth cleaning steps by adopting normal-temperature ultrapure water for 60-120 s; the ninth cleaning step adopts 50 ℃ ultra-pure water to slowly pull, the pulling speed is 1-1.5mm/s, and the time is 60-120 s; the tenth cleaning is to uniformly sweep the substrate surface with a static elimination gun to eliminate static electricity.

9. A method for preparing antibacterial coated lens according to claim 6 or 7, wherein the number of times of alternately repeating the evaporation of titanium dioxide layer and the evaporation of silicon dioxide layer is 1 or more.

10. Antibacterial spectacles comprising lenses and a spectacle frame, wherein the lenses are antibacterial coated lenses according to any one of claims 1 to 5 or antibacterial coated lenses prepared by the preparation method according to any one of claims 6 to 9.

Technical Field

The invention relates to the technical field of lens preparation, in particular to an antibacterial film-coated lens and antibacterial glasses.

Background

The glasses are used as articles for a long time, dust in the air, dandruff falling from the forehead and the like can all make the lenses become dirty; ordinary lenses naturally become living and multiplying places of a plurality of microorganisms, and the lenses are contacted with the glasses for a long time, so that the problems of eye itching and the like are easily caused, and eye diseases can be seriously caused.

Common microorganisms harmful to our lives include escherichia coli, staphylococcus aureus, candida albicans, streptococcus pyogenes, and the like. These microorganisms are harmful to the human body and ubiquitous, so daily protection should be done. In the prior art, the antibacterial lens is combined with the lens by adopting the nano-silver coating, however, the combination of the nano-silver and the lens is poor, the nano material is easy to run off, the antibacterial effect is reduced, and the antibacterial effect is not durable. For example, patent application CN111499809A discloses an antibacterial spectacle lens and a manufacturing process thereof, which is formed by extruding and curing, by weight, 70-80 parts of propenyl diglycol carbonate, 5-8 parts of polypropylene glycol, 2-3 parts of nano silicon dioxide, 0.5-1 part of silver ions, 0.5-1 part of zinc ions, 5-8 parts of an organic solvent, and 2-4 parts of glass microparticles. An antibacterial spectacle lens manufacturing process comprises the following operation steps: firstly, weighing all the components according to the weight percentage, and then adding the components into a grinding tank for stirring and grinding; secondly, adding the components stirred and ground in the first step into a double-screw extruder for melt extrusion; and thirdly, performing injection molding through a mold. The lens mixes silver ions into the system, and the silver ions are continuously consumed or lost along with the use of the lens, so that the antibacterial effect is not durable.

Disclosure of Invention

Aiming at the problems, the invention aims to overcome the problem that the antibacterial effect of the existing antibacterial lens is not durable, and provides an antibacterial coated lens.

In order to achieve the aim, the invention provides an antibacterial coated lens which is characterized by comprising a substrate, wherein the outer surface of the substrate is sequentially provided with a first strengthening layer, a first nano silver layer, a first titanium dioxide layer and a first silicon dioxide layer which are alternately laminated from the substrate, the number of the laminated layers is n, n is more than or equal to 1, and the first titanium dioxide layer is attached to the first nano silver layer; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer and a second silicon dioxide layer from the substrate.

And the first hydrophobic and oleophobic layer covers the first silicon dioxide layer, and the second hydrophobic and oleophobic layer covers the second silicon dioxide layer.

Further, n is more than or equal to 2.

Further, n is more than or equal to 3.

Further, the thickness of the first nano silver layer is 0.1-1 μm, the thickness of the first titanium dioxide is 0.5-10 μm, the thickness of the first silicon dioxide layer is 1-20 μm, the thickness of the second nano silver layer is 0.1-1 μm, the thickness of the second titanium dioxide layer is 0.5-10 μm, and the thickness of the second silicon dioxide layer is 1-20 μm.

The invention also provides a preparation method of the antibacterial coated lens, which is characterized by comprising the following steps:

step 1: cleaning the substrate;

step 2: dipping the cleaned substrate in a strengthening solution, pulling and drying to form a strengthening layer to obtain a strengthened substrate;

and step 3: directly putting the reinforced substrate into an oven for drying, wherein the temperature of the oven is 50-55 ℃, and the time duration is 0.5-3 hours, so as to obtain a dried substrate;

and 4, step 4: arranging the dried substrate on a film coating frame, putting the substrate into a vacuum chamber, vacuumizing to 7.0 multiplied by 10^-5When the argon amount reaches 30-35sccm, the ion gun starts working on the surface of the substrate for 120-150s, and the ion gun parameters are as follows: cleaning the surface of the substrate and roughening the surface of the substrate by using a voltage 145-155V, a current 125-135A, a filament 30-40A and an emission current 6-7A;

and 5: evaporation;

evaporating a nano silver layer: continuously vacuumizing to 3.5X 10^-5Charging oxygen to enable the oxygen concentration to reach 50-60sccm, adopting Ag, enabling the current of an electron gun to be 70-100 mA, enabling the evaporation rate to be 6-8A/S, and evaporating a nano silver layer on the surface of the substrate to obtain a substrate A;

evaporating a titanium dioxide layer: charging oxygen to make oxygen concentration reach 50-60sccm, and adopting TiO₂Evaporating a titanium dioxide layer on the surface of the substrate A to obtain a substrate B, wherein the current of an electron gun is 280-320 mA, the evaporation rate is 2-4A/S;

evaporating a silicon dioxide layer: by means of SiO₂And (3) evaporating a silicon dioxide layer on the surface of the substrate B to obtain a substrate C, namely the antibacterial coated lens, wherein the current of the electron gun is 70-100 mA, the evaporation rate is 6-8A/S.

The invention also provides a preparation method of the antibacterial coated lens, which is characterized by comprising the following steps:

step 1: cleaning the substrate;

step 2: dipping the cleaned substrate in a strengthening solution, pulling and drying to form a strengthening layer to obtain a strengthened substrate;

and step 3: directly putting the reinforced substrate into an oven for drying, wherein the temperature of the oven is 50-55 ℃, and the time duration is 0.5-3 hours, so as to obtain a dried substrate;

and 4, step 4: arranging the dried substrate on a film coating frame, putting the substrate into a vacuum chamber, vacuumizing to 7.0 multiplied by 10^-5When the argon amount reaches 30-35sccm, the ion gun starts working on the surface of the substrate for 120-150s, and the ion gun parameters are as follows: cleaning the surface of the substrate and roughening the surface of the substrate by using a voltage 145-155V, a current 125-135A, a filament 30-40A and an emission current 6-7A;

and 5: evaporation;

evaporating a nano silver layer: continuously vacuumizing to 3.5X 10^-5Charging oxygen to enable the oxygen concentration to reach 50-60sccm, adopting Ag, enabling the current of an electron gun to be 70-100 mA, enabling the evaporation rate to be 6-8A/S, and evaporating a nano silver layer on the surface of the substrate to obtain a substrate A;

evaporating a titanium dioxide layer: charging oxygen to make oxygen concentration reach 50-60sccm, and adopting TiO₂Evaporating a titanium dioxide layer on the surface of the substrate A to obtain a substrate B, wherein the current of an electron gun is 280-320 mA, the evaporation rate is 2-4A/S;

evaporating a silicon dioxide layer: by means of SiO₂The current of the electron gun is 70-100 mA,evaporating a silicon dioxide layer on the surface of the substrate B at the evaporation rate of 6-8A/S to obtain a substrate C;

evaporating a hydrophobic oil-repellent layer: and (3) adopting an active siloxane group fluorine modified polymer nano material, wherein the current of an electron gun is 20-40 mA, the evaporation rate is 1-3A/S, and evaporating the active siloxane group fluorine modified polymer nano material on the surface of the substrate C to obtain a substrate D, namely the antibacterial coated lens.

Further, the cleaning in the step 1 comprises nine cleaning steps, wherein the first cleaning step is carried out for 60-120s by using a cleaning agent consisting of 2-5 wt% of neutral degreasing agent, 3-5 wt% of surfactant and normal-temperature ultrapure water; cleaning with normal-temperature ultrapure water for 60-120s in the second step; the third cleaning step is to clean the fabric for 60 to 120 seconds by adopting a cleaning agent consisting of 1 to 3 weight per thousand of neutral degreasing agent, 2 to 4 weight per thousand of surfactant and normal-temperature ultrapure water; cleaning the fourth to eighth cleaning steps by adopting normal-temperature ultrapure water for 60-120 s; the ninth cleaning step adopts 50 ℃ ultra-pure water to slowly pull, the pulling speed is 1-1.5mm/s, and the time is 60-120 s; the tenth cleaning is to uniformly sweep the substrate surface with a static elimination gun to eliminate static electricity.

Further, the number of times of alternately repeating the vapor deposition of the titanium dioxide layer and the vapor deposition of the silicon dioxide layer is not less than 1.

The invention also provides antibacterial glasses which comprise lenses and a glasses frame and are characterized in that the lenses are the antibacterial film-coated lenses.

The invention adopts the strengthening layer to be attached on the surface of the substrate, and the silver is attached on the strengthening layer, and the strengthening layer is used for anti-reflection, has good impact resistance and improves the integral adhesive force of the film layer. Preferably, the reinforcing layer in the present invention is a layer formed by drying the reinforcing liquid HCS-3800 manufactured by Seiko Kabushiki Kaisha (セイコー Kabushiki Kaisha).

Furthermore, the lens is cleaned to achieve the target effect, so that the strengthening layer is uniformly distributed on the surface of the substrate, and the flatness of the film is ensured. Preferably, the cleaning in step 1 comprises ten cleaning steps: the first cleaning agent is: 2-5 wt.% neutral degreasing agent, 3-5 wt.% surfactant and normal temperature ultrapure water, and cleaning for 60-120 s; the second step is to clean the ultrapure water at normal temperature for 60 to 120 seconds; the third cleaning agent is: 1-3 wt% of neutral degreasing agent, 2-4 wt% of surfactant and normal temperature ultrapure water, and cleaning for 60-120 s; cleaning the fourth to eighth steps with normal-temperature ultrapure water for 60-120 s; the ninth step is water cutting and cleaning, adopting ultrapure water at 50 ℃, and slowly lifting, wherein the lifting speed is 1-1.5mm/s, and the time is 60-120 s; finally, the static cleaning is carried out, and the static eliminating gun is used for uniformly sweeping the surface of the substrate to eliminate static electricity. The neutral degreasing agent and the surfactant are conventional lens cleaning agents, such as neutral phosphorus-free degreasing agents or surfactants containing polyoxyethylene ethers.

Has the advantages that: when the titanium dioxide layer is irradiated by light (ultraviolet light) with the wavelength of less than or equal to 387.5nm, electrons of a valence band obtain the energy of photons and go forward to a conduction band to form photo-generated electrons (e)^-) (ii) a In the valence band, photogenerated holes (h +) and TiO are formed correspondingly₂The photo-generated electron e-on the surface is easily captured by oxidizing substances such as oxygen dissolved in water, and the hole h⁺Can be oxidized and adsorbed on TiO₂Organic substances on the surface or adsorbed on TiO firstly₂OH of the surface^-And H₂The O molecules are oxidized into (OH free radicals), and the (OH free radicals) have strong oxidizing capability, can oxidize most organic matters and inorganic pollutants in water and mineralize the organic matters and the inorganic pollutants into inorganic small molecules and CO₂And H₂O and the like are harmless substances, so that the sterilization potential is realized.

The invention adopts the titanium dioxide layer to be jointed with the silicon dioxide layer, and the silicon dioxide layer contains a large amount of surface hydroxyl (OH) which can be jointed with TiO₂The electron-hole reaction of (2) to form an active hydroxyl group (. OH) having a strong oxidizing property. The active hydroxyl groups can be combined with each other to generate hydrogen peroxide, so that the bactericidal activity is improved. Nano SiO in silicon dioxide layer₂Has a porous structure, so that the porous material has a large specific surface and pore volume and has stronger adsorption and capture capacity on microorganisms. Meanwhile, the porous structure has strong moisture absorption capacity, so that the porous structure can be positionedThe environmental humidity is reduced, and the product has drying effect and can inhibit the growth of microorganism. Meanwhile, the moisture absorbed by the silicon dioxide increases the number of hydroxyl groups on the surface of the silicon dioxide, and the sterilization effect is further improved.

Under the illumination, the outer titanium dioxide layer plays an antibacterial role, the inner nano silver layer mainly plays an antibacterial role under the condition of no proper illumination, the titanium dioxide layer plays an antibacterial role and depends on the photoelectric effect, the titanium dioxide is not consumed, the titanium dioxide layer covers the nano silver layer, the loss of the nano silver can be effectively prevented, and the antibacterial effect can be played for a long time.

Escherichia coli, Staphylococcus aureus, Candida albicans, and Streptococcus pyogenes are all common bacteria in the environment. The antibacterial film-coated lens has the antibacterial rate of more than 99.9% to escherichia coli, staphylococcus aureus, candida albicans and streptococcus pyogenes under the normal illumination condition, and has the main antibacterial effect by the nano silver layer when the illumination is insufficient, so that the antibacterial film-coated lens has a super-strong antibacterial effect.

Drawings

FIG. 1 is a schematic view of one of the structures of the antibacterial coated lens of the present invention.

FIG. 2 is a schematic view of one of the structures of the antibacterial coated lens of the present invention.

Detailed Description

Preferred embodiments of the present invention will be described in more detail below. While the following describes preferred embodiments of the present invention, it should be understood that the present invention may be embodied in various forms and should not be limited by the embodiments set forth herein. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The reagents or instruments used are not indicated by the manufacturer, and are all conventional products commercially available. In the following examples, "%" means weight percent, unless otherwise specified.

In the following examples, the substrate is a polycarbonate lens, a TAC polarized lens, or a TR lens. The first hydrophobic oil-repellent layer and the second hydrophobic oil-repellent layer are both organic fluorine modified polysiloxane layers. The first reinforcing layer and the second reinforcing layer were each a layer formed by drying a reinforcing liquid HCS-3800 manufactured by Seiko Kabushiki Kaisha (セイコー Kabushiki Kaisha).

The following examples are illustrated in conjunction with fig. 1-2.

Wherein the reference numerals are respectively: the nano-silver/titanium composite material comprises a substrate 0, a first strengthening layer 1, a first nano-silver layer 2, a first titanium dioxide layer 3, a first silicon dioxide layer 4 and a first hydrophobic oil-repellent layer 5; the inner surface of the substrate is sequentially provided with a second strengthening layer 1 ', a second nano silver layer 2 ', a second titanium dioxide layer 3 ', a second silicon dioxide layer 4 ' and a second hydrophobic oil-dredging layer 5 '.

EXAMPLE 1 antimicrobial coated lenses and method of making

An antibacterial coated lens comprises a substrate, wherein a first strengthening layer, a first nano silver layer, a first titanium dioxide layer, a first silicon dioxide layer and a first hydrophobic oil-repellent layer are sequentially arranged on the outer surface of the substrate; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer, a second silicon dioxide layer and a second hydrophobic oil-repellent layer. The structure of the device is schematically shown in figure 1.

Wherein the first and second strengthening layers are 2 μm. The thickness of the first nano silver layer and the second nano silver layer is 0.5 mu m. The thickness of the first titanium dioxide layer and the second titanium dioxide layer is 4 μm. The thickness of the first silicon dioxide layer and the second silicon dioxide layer is 20 μm. The first hydrophobic oleophobic layer and the second hydrophobic oleophobic layer were 5 μm.

The preparation method of the antibacterial coated lens comprises the following steps:

step 1: cleaning the substrate; comprises ten cleaning steps: the first cleaning agent is: 2-5 wt.% neutral degreasing agent, 3-5 wt.% surfactant and normal temperature ultrapure water, and cleaning for 60-120 s; the second step is to clean the ultrapure water at normal temperature for 60 to 120 seconds; the third cleaning agent is: 1-3 wt% of neutral degreasing agent, 2-4 wt% of surfactant and normal temperature ultrapure water, and cleaning for 60-120 s; cleaning the fourth to eighth steps with normal-temperature ultrapure water for 60-120 s; the ninth step is water cutting and cleaning, adopting ultrapure water at 50 ℃, and slowly lifting, wherein the lifting speed is 1-1.5mm/s, and the time is 60-120 s; finally, electrostatic cleaning is carried out, and a static eliminating gun is used for uniformly sweeping the surface of the substrate to eliminate static; the neutral degreasing agent and the surfactant are conventional lens cleaning agents, such as a neutral phosphorus-free degreasing agent or a surfactant containing polyoxyethylene ether;

step 2: dipping the cleaned substrate in a strengthening solution, pulling and drying to form a strengthening layer to obtain a strengthened substrate; the strengthening liquid is HCS-3800 produced by Seiko Kabushiki Kaisha (セイコー Kabushiki Kaisha);

and step 3: directly putting the reinforced substrate into an oven for drying, wherein the temperature of the oven is 50-55 ℃, and the time duration is 0.5-3 hours, so as to obtain a dried substrate;

and 4, step 4: arranging the dried substrate on a film coating frame, putting the substrate into a vacuum chamber, vacuumizing to 7.0 multiplied by 10^-5When the argon amount reaches 30-35sccm, the ion gun starts working on the surface of the substrate for 120-150s, and the ion gun parameters are as follows: cleaning the surface of the substrate and roughening the surface of the substrate by using a voltage 145-155V, a current 125-135A, a filament 30-40A and an emission current 6-7A;

and 5: evaporation;

evaporating a nano silver layer: continuously vacuumizing to 3.5X 10^-5Charging oxygen to enable the oxygen concentration to reach 50-60sccm, adopting Ag, enabling the current of an electron gun to be 70-100 mA, enabling the evaporation rate to be 6-8A/S, and evaporating a nano silver layer on the surface of the substrate to obtain a substrate A;

evaporating a titanium dioxide layer: charging oxygen to make oxygen concentration reach 50-60sccm, and adopting TiO₂Evaporating a titanium dioxide layer on the surface of the substrate A to obtain a substrate B, wherein the current of an electron gun is 280-320 mA, the evaporation rate is 2-4A/S;

evaporating a silicon dioxide layer: by means of SiO₂Evaporating a silicon dioxide layer on the surface of the substrate B to obtain a substrate C, wherein the current of an electron gun is 70-100 mA, and the evaporation rate is 6-8A/S;

evaporating a hydrophobic oil-repellent layer: and (3) adopting an active siloxane group fluorine modified polymer nano material, wherein the current of an electron gun is 20-40 mA, the evaporation rate is 1-3A/S, and evaporating an active siloxane group fluorine modified polymer nano material layer on the surface of the substrate C to obtain a substrate D, namely the antibacterial coated lens.

Example 2 antimicrobial coated lenses and methods of making the same

The antibacterial coated lens comprises a substrate, wherein a first strengthening layer, a first nano silver layer, a first titanium dioxide layer, a first silicon dioxide layer and a first hydrophobic oil-repellent layer are sequentially arranged on the outer surface of the substrate; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer, a second silicon dioxide layer and a second hydrophobic oil-repellent layer. The structure of the device is schematically shown in figure 1.

Wherein the first and second reinforcing layers are 1 μm. The thickness of the first nano silver layer and the second nano silver layer is 1 mu m. The thickness of the first titanium dioxide layer and the second titanium dioxide layer is 10 μm. The thickness of the first silicon dioxide layer and the second silicon dioxide layer is 10 mu m. The first hydrophobic oleophobic layer and the second hydrophobic oleophobic layer were 1 μm.

The preparation method is the same as example 1.

Example 3 antimicrobial coated lenses and methods of making the same

The antibacterial coated lens comprises a substrate, wherein a first strengthening layer, a first nano silver layer, a first titanium dioxide layer, a first silicon dioxide layer and a first hydrophobic oil-repellent layer are sequentially arranged on the outer surface of the substrate; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer, a second silicon dioxide layer and a second hydrophobic oil-repellent layer. The structure of the device is schematically shown in figure 1.

Wherein the first and second strengthening layers are 3 μm. The thickness of the first nano silver layer and the second nano silver layer is 0.1 mu m. The thickness of the first titanium dioxide layer and the second titanium dioxide layer is 1 μm. The thickness of the first silicon dioxide layer and the second silicon dioxide layer is 15 mu m. The first hydrophobic oleophobic layer and the second hydrophobic oleophobic layer were 8 μm.

The preparation method is the same as example 1.

Example 4 antimicrobial coated lenses and methods of making the same

The antibacterial coated lens comprises a substrate, wherein a first strengthening layer, a first nano silver layer, a first titanium dioxide layer, a first silicon dioxide layer, a first titanium dioxide layer, a first silicon dioxide layer and a first hydrophobic oil-repellent layer are sequentially arranged on the outer surface of the substrate; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer, a second silicon dioxide layer and a second hydrophobic oil-repellent layer. The structure of the device is schematically shown in figure 1.

Wherein the first and second reinforcing layers are 5 μm. The thickness of the first nano silver layer and the second nano silver layer is 1 mu m. The thickness of the first titanium dioxide layer and the second titanium dioxide layer is 2 μm. The thickness of the first silicon dioxide layer and the second silicon dioxide layer is 5 mu m. The first hydrophobic oleophobic layer and the second hydrophobic oleophobic layer were 3 μm.

The preparation method is the same as example 1.

EXAMPLE 5 antimicrobial coated lenses and method of making

The antibacterial coated lens comprises a substrate, wherein a first strengthening layer, a first nano silver layer, a first titanium dioxide layer, a first silicon dioxide layer, a first titanium dioxide layer, a first silicon dioxide layer and a first hydrophobic oil-repellent layer are sequentially arranged on the outer surface of the substrate; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer, a second silicon dioxide layer and a second hydrophobic oil-repellent layer. The structure of the device is schematically shown in figure 1.

Wherein the first and second strengthening layers are 6 μm. The thickness of the first nano silver layer and the second nano silver layer is 0.8 mu m. The thickness of the first titanium dioxide layer and the second titanium dioxide layer is 0.5 μm. The thickness of the first silicon dioxide layer and the second silicon dioxide layer is 1 mu m. The first hydrophobic oleophobic layer and the second hydrophobic oleophobic layer were 10 μm.

The preparation method is the same as example 1.

Example 6 antimicrobial coated lenses and methods of making the same

The antibacterial coated lens comprises a substrate, wherein a first strengthening layer, a first nano silver layer, a first titanium dioxide layer, a first silicon dioxide layer, a first titanium dioxide layer, a first silicon dioxide layer and a first silicon dioxide layer are sequentially arranged on the outer surface of the substrate; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer and a second silicon dioxide layer. The structure of which is schematically shown in figure 2.

Wherein the first and second strengthening layers are 6 μm. The thickness of the first nano silver layer and the second nano silver layer is 0.8 mu m. The thickness of the first titanium dioxide layer and the second titanium dioxide layer is 0.5 μm. The thickness of the first silicon dioxide layer and the second silicon dioxide layer is 1 mu m.

The preparation method is the same as example 1. And removing the evaporated hydrophobic and oil-repellent layer to obtain a substrate C, namely the antibacterial coated lens of the embodiment.

Comparative example 1

A contrast antibacterial coated lens 1 comprises a substrate, wherein a first strengthening layer, a first nano silver layer, a first titanium dioxide layer and a first hydrophobic oil-repellent layer are sequentially arranged on the outer surface of the substrate; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second titanium dioxide layer and a second hydrophobic oil-repellent layer. The materials and thicknesses of the layers were the same as in example 1.

Wherein the first and second strengthening layers are 2 μm. The thickness of the first nano silver layer and the second nano silver layer is 0.5 mu m. The thickness of the first titanium dioxide layer and the second titanium dioxide layer is 4 μm. The thickness of the first hydrophobic and oleophobic layer and the thickness of the second hydrophobic and oleophobic layer are both 5 mu m.

The preparation method is the same as example 1. The corresponding step of the missing layer number is removed.

Comparative example 2

A contrast antibacterial coated lens 2 comprises a substrate, wherein the outer surface of the substrate is sequentially provided with a first nano silver layer, a first titanium dioxide layer, a first silicon dioxide layer and a first hydrophobic oil-repellent layer; the inner surface of the substrate is sequentially provided with a second nano silver layer, a second titanium dioxide layer, a second silicon dioxide layer and a second hydrophobic oil-repellent layer. The materials and thicknesses of the layers were the same as in example 1.

Wherein the thickness of the first nano silver layer and the second nano silver layer is 0.5 μm. The thickness of the first titanium dioxide layer and the second titanium dioxide layer is 4 μm. The thickness of the first silicon dioxide layer and the second silicon dioxide layer is 20 μm. The thickness of the first hydrophobic and oleophobic layer and the thickness of the second hydrophobic and oleophobic layer are both 5 mu m.

The preparation method is the same as example 1. The corresponding step of the missing layer number is removed.

Comparative example 3

A contrast antibacterial coated lens 3 comprises a substrate, wherein the outer surface of the substrate is sequentially provided with a first strengthening layer, a first nano silver layer, a first silicon dioxide layer (actually, the first silicon dioxide layer with three thicknesses) and a first hydrophobic oil-repellent layer; the inner surface of the substrate is sequentially provided with a second strengthening layer, a second nano silver layer, a second silicon dioxide layer and a second hydrophobic oil-repellent layer. The materials and thicknesses of the layers were the same as in example 3.

Wherein the first and second strengthening layers are 3 μm. The thickness of the first nano silver layer and the second nano silver layer is 0.1 mu m. The thickness of the first silicon dioxide layer and the second silicon dioxide layer is 15 mu m. The thicknesses of the first hydrophobic and oleophobic layer and the second hydrophobic and oleophobic layer are both 8 micrometers.

The preparation method is the same as example 1. The corresponding step of the missing layer number is removed.

The lenses of the above examples and comparative examples were subjected to performance tests, and the antibacterial performance tests were carried out according to the measurement method disclosed in national standard GB/T31402-2015 "test method for antibacterial performance on plastic surface", wherein Escherichia coli, Staphylococcus aureus, Candida albicans and Streptococcus pyogenes are all common bacteria in the environment, and the four bacteria were used as test strains, and the light transmittance of the lenses in the visible light range was measured according to the measurement method disclosed in national standard GB/T32166.2-2016 for eye and face protection of individual protective equipments, and the results are shown in Table 1. The lenses of the above examples and comparative examples were subjected to the same performance tests after 6 months of standing at room temperature, and the results are shown in Table 2.

The selected bacteria are all common strains and can be purchased from ATCC, such as 8739 types of escherichia coli, 14053 types of candida albicans, 6538P types of staphylococcus aureus and 19615 types of streptococcus pyogenes.

TABLE 1 Table of results of performance test of lenses of each example and comparative example

TABLE 2 table of performance test results of the lenses of each example and comparative example after 6 months of storage

As can be seen from table 1, the antibacterial coated lenses of examples 1 to 6 have good antibacterial effects, and the antibacterial rates of escherichia coli and staphylococcus aureus are respectively greater than 99.91% and 99.96%, respectively 99.92% and 99.97% respectively for candida albicans and streptococcus pyogenes. The antibacterial rate of the comparative lens is lower and is less than 97.38 percent. The antibacterial coated lenses of the embodiments 1 to 6 have good antibacterial effect, and the light transmittance reaches 95.7 to 96.1 percent, thereby meeting the requirements of the lenses. Meanwhile, the antibacterial rate of the antibacterial coated lenses of the examples 1 to 6 is almost unchanged after six months, while the antibacterial rate of the comparative example is reduced more rapidly. The transmittance of both examples and comparative examples did not change much. Although the antibacterial coated lens in example 6 has a good antibacterial and light-transmitting effect, the lens is easily contaminated with oil due to the absence of the hydrophobic and oil-repellent layer, and needs to be cleaned in time to be affected.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.