KR101340513B1

KR101340513B1 - Antifog lens and manufacturing process thereof

Info

Publication number: KR101340513B1
Application number: KR20130092674A
Authority: KR
Inventors: 김진태; 이종민; 연연옥
Original assignee: 김진태; 연연옥; 이종민
Priority date: 2013-08-05
Filing date: 2013-08-05
Publication date: 2013-12-11
Also published as: WO2015020368A2; WO2015020368A3

Abstract

The present invention relates to an anti-fog lens including a hydrophilic coating layer and a manufacturing method thereof. the present invention has excellent durability and wear resistant properties and excellent an anti-fog function for maintaining transparency of the lens by forming the hydrophilic anti-fog lens coating layer including the hydrophilic coating layer on a blank lens or a hard coating lens. Therefore, the lens preventing fogging phenomenon, which is according to change in temperature, is not only provided for a glasses user as the lens of glasses also for various fields such as a telescope, a microscope, and a camera lens. [Reference numerals] (AA) Water drop;(BB,DD) Coating layer;(CC) Lens

Description

Antifog lens and manufacturing method thereof

The present invention relates to an anti-fog lens and a method for manufacturing the same, and more particularly, to form a hydrophilic anti-fog lens coating layer including a hydrophilic coating layer on a blank lens or a hard coating lens to provide transparency of the lens. The present invention relates to an antifog lens that maximizes antifog function, wear resistance, and durability, and a method of manufacturing the same.

In the present invention, the term "antifog lens" refers to a lens having an antifog function having high transparency without blurring (hereinafter, referred to as an "antifog lens").

Recently, the proportion of eyeglasses users is increasing day by day due to the security of eyesight or deterioration of eyesight due to various changes in the industrial society.

As the wearing rate of glasses increases, the importance of spectacle lenses is increasing. Most of the spectacle lenses in circulation are mainly plastic lenses.

The most uncomfortable thing for eyewear wearers according to various industrial working environments is that there is a considerable risk to the safety of eyewear wearers due to the frostiness caused by temperature changes.

A simple antifog method conventionally used conventionally is to apply an antifogging composition containing a hydrophilic compound such as polyethylene glycol or a hydrophobic or water repellent compound such as silicone to the surface.

In general, antifog agents of surfactants have been widely used to prevent fogging of surfaces on ceramic products, mirrors, plastics, lenses, and metals.

The above known method is temporary, and there is a problem that the surface coating is easily worn or peeled off, so that the effect is not sustained and the strength of the coating film is not high.

In addition, it is not possible to press the lens, and remove the wet and wet process during the preparation of the glasses.

In addition, a method of applying a co-polymer of 2-hydroxy ethyl methacrylate and methacrylic acid sodium salt in relation to an antifogging agent (Japanese Patent Laid-Open No. 53-28588), -OH group at the end of the substrate for preventing antifogging on the lens surface Although a method of making a compound produced by reacting a polyether and a polyisocyanate compound with an antifogging layer (Japanese Patent Laid-Open No. 2-20580) has been proposed, the former method has an excellent antifogging effect but is easily removed due to a weak coating layer. The latter method is a compound of a three-dimensional network structure has excellent film strength but poor solubility in mixed solvents, there is a problem that the uniformity of the coating film after coating is reduced.

In addition, a method for obtaining an antifogging film by reacting with a silane coupling agent having a diamine and an amine group in an epoxy functional organic ether as an antifogging agent mainly composed of a silicone-modified ether is known (Japanese Patent Laid-Open Application Publication No. 4-A). 180916, Japanese Patent Application Laid-Open No. 4-180917), does not have an excellent anti-fog property, poor stability of the coating liquid, and high strength of the film.

Accordingly, the present invention has been invented to solve the above problems, and an object of the present invention is to use a crystalline titanium dioxide core-crystalline titanium dioxide shell type titanium dioxide photocatalyst and a hydrophilic coating agent including a titanium dioxide photocatalyst (Blank Lens) Or anti-fog lens that maximizes abrasion resistance and durability by forming a hydrophilic anti-fog lens coating layer including a hydrophilic coating layer on a hard coating lens and maintaining transparency of the lens, and a method of manufacturing the same In providing.

As a first embodiment for achieving the object of the present invention,

5% by weight of a crystalline titanium dioxide core-crystalline titanium dioxide shell form titanium dioxide photocatalyst, 1% by weight of a water-soluble acrylic emulsion resin as a dispersant, and 60% by weight of 1-Methoxy-2-propanol as the remaining solvent And 70 parts by weight of a photocatalyst solution consisting of 34% by weight of 3-methoxy (Methoxy-3methyl butanol);

10 parts by weight of a curable binder solution consisting of 10% by weight of tetraethyl orthosilicate as the curable binder and 90% by weight of 2-propanol as the remaining solvent;

And a coating liquid formed by mixing 20 parts by weight of a leveling agent solution consisting of 5% by weight of BYK-346 (BYK) as a leveling agent and 95% by weight of 2-propanol as the remaining solvent;

ADID LENS, aryl-diglycol-carbonate lens, POLYCARBONATE, PMMA (POLYMETHYL METHACRYLATE, ACRYL LENS), polyurethane, ADC, diallyl isophthalate (DAP) resin, Plastic lens made of one of polyamide (POLYAMIDE), thiourethane resin, canceling urethane resin, TRIVEX, NXT, and the like. A first step of preparing a hard coating lens);

A second step of attaching a blank lens or a hard coating lens in the first step to a rotating substrate capable of rotating at a speed of 1,000 rpm to 6,000 rpm;

The first step of depositing the coating solution in the first step in the center of the blank lens (Hardk Lens) or hard coating lens in the second step at a concentration of 1wt% ~ 6wt% at room temperature (1 ℃ ~ 25 ℃) With three steps;

Rotating the lens mounted by the rotating disk in the state of depositing the coating liquid in the third step for 10 to 30 seconds (sce) at a speed of 1,000rpm ~ 6,000rpm to spread the coating solution to the periphery of the lens by centrifugal force 0.1 ~ 7 A fourth step of uniformly applying a thickness of 占 퐉;

In the fourth step, the lens coated with the coating solution is dried at 80 ° C. to 190 ° C. for 10 minutes to 30 minutes to form a hydrophilic coating layer, thereby preparing an anti-fog lens.

As a second embodiment for achieving the object of the present invention,

The concentration of 1 wt% to 6 wt% of the coating solution in the first step at room temperature (1 ° C. to 25 ° C.) is used to prepare a blank lens or a hard coating lens prepared in the first step. Dipping and pulling at a speed of 0.1 cm / sec to 0.5 cm / sec to uniformly apply the coating liquid over the front and rear surfaces of the entire lens to a thickness of 0.1 to 7 μm;

In the second step, the lens coated with the coating solution is dried at 80 ° C. to 190 ° C. for 10 minutes to 30 minutes to form a hydrophilic coating layer, thereby preparing an anti-fog lens.

As a third embodiment for achieving the object of the present invention,

ADID LENS, aryl-diglycol-carbonate lens, POLYCARBONATE, PMMA (POLYMETHYL METHACRYLATE, ACRYL LENS), polyurethane, ADC, diallyl isophthalate (DAP) resin, Plastic lens made of one of polyamide (POLYAMIDE), thiourethane resin, canceling urethane resin, TRIVEX, NXT, and the like. Crystalline titanium dioxide on the entire front and rear surface of the hard coating lens) and the crystalline titanium dioxide or the metal-doped crystalline titanium dioxide surface doped with a metal component in the crystalline titanium dioxide. Titanium dioxide in the form of a crystalline titanium dioxide core-amorphous titanium dioxide shell, forming an amorphous titanium dioxide layer in the range of 10 to 50% by weight, based on the weight of titanium. 80 to 95 parts by weight of a photocatalyst solution including a catalyst, a dispersant and a dispersion medium, a C1 to C4 hydrocarbon group having a vinyl group or a methacryloxy group, a mercapto group, an amino group or an epoxy group as a curable binder, and R3 is C1 to C8 hydrocarbon group or acyl group, a and b are 0 or 1, respectively, an alcoholic silane represented by the formula R1aR2bSi (OR3) 4-ab, or an alkoxysilane-based solution of hydrolyzate or partial hydrolyzate thereof. It is an anti-fog lens including a hydrophilic coating layer formed in a thickness of 1 ~ 5㎛ coating liquid containing 10 parts by weight and 10 to 40 parts by weight of the leveling agent solution.

According to the present invention, by forming a hydrophilic anti-fog lens coating layer including a hydrophilic coating layer on a blank lens or a hard coating lens (Anti-fog function) to maintain the transparency of the lens and excellent wear resistance and Durable effect is excellent.

Therefore, it is possible to provide the spectacle wearer with a lens that prevents the glimmer due to the temperature change as a spectacle lens, and also provides an optical lens with excellent antifog function in various fields such as telescope, microscope, and camera lens. can do.

1 is a process chart for the "manufacturing method of the antifog lens" of the first embodiment according to the present invention.
2 is a process chart for the "manufacturing method of the antifog lens" of the second embodiment according to the present invention.
3A and 3B are cross-sectional views for understanding the structure of the "antifog lens" according to the present invention.
Figures 4a to 4d is a comparative view showing the photographing the comparative experiments between the anti-fog lens of the present invention and other companies' products.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

First, a method of manufacturing an antifog lens as a first embodiment of the present invention will be described in detail with reference to FIG. 1.

First step (S1)-coating liquid and a blank lens or hard coating lens (Hard Coating Lens) as a preparation step,

And 20 parts by weight of a leveling agent solution consisting of 5% by weight of BYK-346 (BYK) as a leveling agent and 95% by weight of 2-propanol as the remaining solvent.

AD LENS, aryl-diglycol-carbonate lenses, POLYCARBONATE, PMMA (POLYMETHYL METHACRYLATE, ACRYL LENS), polyurethane, ADC, diallyl isophthalate (DAP) resin , Plastic lens made of one of polyamide (POLYAMIDE), thiourethane resin, canceling urethane resin, TRIVEX, NXT, blank lens or hard coating lens Prepare (Hard Coating Lens).

Materials other than the plastic lens as described above have been found through experiments that the anti-fog function is significantly reduced when coated with the coating solution.

In addition, the antifog function is significantly reduced when the coating solution is coated on a lens other than a blank lens or a hard coating lens as a plastic lens.

That is, it was found through many experiments that the super-water repellent, anti-reflective coating, the multi-coated lens, etc., even if coated with the coating solution has no effect of the anti-fog function.

The "Blank Lens" refers to an uncoated lens which is not coated with any coating. The Hard Coating Lens refers to a lens having a surface hardened by low temperature sputtering of silicon oxide.

Second Step (S2)-Mount a blank lens or a hard coating lens in the first step on a rotating substrate that can rotate at a speed of 1000rpm ~ 6000rpm.

Third step (S3)-1wt% ~ 6 at room temperature (1 ℃ ~ 25 ℃) the coating liquid in the first step in the center of the blank lens (Hardk Lens) or hard coating lens (Hard Coating Lens) in the second step Deposit at wt% concentration.

The coating solution is most suitable at room temperature (1 ℃ ~ 25 ℃) state when the concentration is 1wt% ~ 6 wt% when the coating is completed, the effect of the anti-fog function is significantly reduced.

Fourth Step (S4)-In the third step, the lens mounted by the rotating disc is rotated for 10 to 30 seconds (sce) at a speed of 1,000 rpm to 6,000 rpm in a state in which the coating liquid is deposited. The coating liquid is unfolded and uniformly applied to a thickness of 0.1 ~ 7㎛.

If the rotational force of the lens by the rotating disk is less than 1,000rpm coating application is not made properly and if the coating solution is not more than 6,000rpm the coating solution is not applied to a certain thickness.

In addition, if the rotation time is also less than 10 seconds, the coating solution is not properly applied to the periphery of the lens. If the coating time is over 30 seconds, the coating thickness of the coating solution becomes thinner, thereby leaving the range of 0.1 to 7 μm.

The fifth step (S5)-the lens coated with the coating liquid in the fourth step is dried for 10 to 30 minutes at 80 ℃ ~ 190 ℃ to complete the production of the anti-fog lens formed with a hydrophilic coating layer.

The lens coated with the coating liquid takes a long time to dry when the drying temperature is 80 ° C. or less, and thus the effect of the anti-fog function is reduced. When the lens is more than 190 ° C., the lens is rapidly dried to cause microcracks, resulting in deteriorated lens quality. There will be no.

In addition, if the drying time is also less than 10 minutes, the drying is not completed, the coating layer formation is incomplete, and if it exceeds 30 minutes, microcracks occur, which degrades the quality of the lens and decreases the yield.

As described above, a hydrophilic coating layer is formed on a blank lens or a hard coating lens to produce an antifog lens having an antifog function. A hydrophilic coating layer is formed on the front and rear surfaces of the lens by the above method. To complete.

That is, by forming a hydrophilic coating layer on one side (front side) of the lens by the above method, and then forming a hydrophilic coating layer on the other side (back side) is completed.

In the anti-fog lens of the present invention manufactured as described above, the contact angle (θ) of the coating layer of the lens is in a state of 1 ° to 10 ° or less. Without this, one water film is formed (see FIGS. 3A and 3B).

Therefore, an antifog lens having an excellent antifog function that prevents a fog phenomenon due to temperature change can be obtained and transparency of the lens can be maintained.

Experimental Example 1

The antifog lens of the present invention was left above 1.5 cm in a constant temperature bath containing water of 75 ° C ~ 80 ° C.

Experimental Example 2

After leaving at -20 ° C for 30 minutes, the antifog lens of the present invention was left on a 1.5 cm level in a thermostatic bath containing 35 ° C water.

Experimental Example 3

After standing at 130 ° C. for 3 hours, the antifog lens of the present invention was placed on a 1.5 cm water level in a thermostatic bath containing 50 ° C. water.

Experimental Example 4

After immersion in distilled water for 1 hour and dried for 12 hours or more at room temperature, the antifog lens of the present invention was left above 1.5 cm in a thermostat containing 50 ℃ water.

Experimental Example 5

After standing in flowing water for 1 minute, the antifog lens of the present invention was left above 1.5 cm in a constant temperature bath containing water at 50 ° C.

Experimental Example 6

The anti-fog lens of the present invention was left above 1.5 cm in a constant temperature bath containing 50 ° C. water after UV irradiation for 15 hours at an interval of 15 cm with an ultraviolet lamp (UVC, 15 W).

As a result of the experiment under the above conditions, there was no misting or water staining. The transmittance was 92% to 95% and the UV protection was 99.9% without UV coating.

And the degree of steaming for the lens products of the present invention and the A, B, C company under the same conditions as in Experimental Example 1 were photographed and presented in Figures 4a to 4b.

As can be seen in Figures 4a to 4d it can be seen that the anti-fog lens of the lens product of the present invention is significantly superior in the antifog function (Antifog Function) than the lenses of other companies.

Next, another embodiment of the manufacturing method of the anti-fog lens as the second embodiment of the present invention will be described in detail. Will be described with reference to FIG.

First step (S10)-The coating liquid and the blank lens (Blank Lens) or hard coating lens (Hard Coating Lens) as a preparation step,

Second step (S20)-coating liquid coating step, the concentration of 1wt% ~ 6wt% coating liquid in the first step at room temperature (1 ℃ ~ 25 ℃) prepared in the first step (Blank Lens) or After dipping a hard coating lens (Hard Coating Lens) in the coating solution and then raised at a speed of 0.1cm / sec ~ 0.5cm / sec to apply a coating solution uniformly over the front and rear surfaces of the entire lens to a thickness of 0.1 ~ 7㎛.

If the pulling speed is less than 0.1cm / sec after the soaking in the coating liquid, the thickness of the coating liquid becomes thick, and the antifog function is reduced. If the pulling speed is 0.5cm / sec or more, the thickness of the coating liquid is thin, which also lowers the anti-fog function.

Third Step (S30)-As a coating liquid drying step, the lens to which the coating liquid is applied in the second step is dried for 10 minutes to 30 minutes at 80 ℃ ~ 190 ℃ to produce an anti-fog lens with a hydrophilic coating layer is formed.

The antifog lens manufactured by the second embodiment of the present invention as described above was subjected to the same experiments as in Experimental Examples 1 to 6 performed in the first embodiment of the present invention, and the results were the same.

Next, an embodiment of an antifog lens will be described in detail as a third embodiment of the present invention.

ADID LENS, aryl-diglycol-carbonate lens, POLYCARBONATE, PMMA (POLYMETHYL METHACRYLATE, ACRYL LENS), polyurethane, ADC, diallyl isophthalate (DAP) resin, Plastic lens made of one of polyamide (POLYAMIDE), thiourethane resin, canceling urethane resin, TRIVEX, NXT, and the like. Crystalline titanium dioxide on the entire front and rear surface of the hard coating lens) and the crystalline titanium dioxide or the metal-doped crystalline titanium dioxide surface doped with a metal component in the crystalline titanium dioxide. Titanium dioxide in the form of a crystalline titanium dioxide core-amorphous titanium dioxide shell, forming an amorphous titanium dioxide layer in the range of 10 to 50% by weight, based on the weight of titanium. 80 to 95 parts by weight of a photocatalyst solution including a catalyst, a dispersant and a dispersion medium, a C1 to C4 hydrocarbon group having a vinyl group or a methacryloxy group, a mercapto group, an amino group or an epoxy group as a curable binder, and R3 is C1 to C8 hydrocarbon group or acyl group, a and b are alkoxysilane compounds represented by the formula R1aR2bSi (OR3) 4-ab, each of which is 0 or 1, or an alkoxysilane-based compound solution which is a hydrolyzate or partial hydrolyzate thereof. A coating solution including 20 parts by weight and 10 to 40 parts by weight of a leveling agent solution constitutes an antifog lens including a hydrophilic coating layer formed to a thickness of 0.1 to 7 μm.

And the alkoxy silane-based compound is selected from at least one selected from the group consisting of tetraethyl orthosilicate, methyltriethoxysilane, methyltrimethoxysilane, diethoxydimethylsilane and diethoxydiethylsilane The leveling agent is composed of one or more selected from the group consisting of polyether polysiloxane, polyacrylic polysiloxane, and polydimethylsiloxane.

As described above, the anti-fog lens of the present invention may form a hydrophilic coating layer on the front and rear surfaces of a blank lens or a hard coating lens by the method of Example 1 or 2, respectively. In the coating layer of the lens, the contact angle (θ) with water is 1 ° to 10 ° or less, which means that even if moisture or condensation in the air condensates do not form individual droplets, one water film is formed (FIGS. 3A and 3A). 3b).

And, the same experiment as in Experimental Examples 1 to 6 carried out in the first embodiment of the present invention the anti-fog lens (Antifog Lens) made as described above was the same.

The present invention as described above is excellent in the antifog function (Antifog Function) to maintain the transparency of the lens by forming a hydrophilic anti-fog lens coating layer including a hydrophilic coating layer on a blank lens or a hard coating lens (Hard Coating Lens) and wear resistance And it is excellent in durability, and therefore, it is possible to provide the lens wearer as a spectacle lens to prevent the fog due to the change of temperature as well as the antifog function (Antifog Function) in various fields such as telescope, microscope, camera lens, etc. Excellent optical lenses can be provided.

S1, S10: first step S2, S20: second step
S3, S30: Third Step S4: Fourth Step
S5: fifth step

Claims

5% by weight of a crystalline titanium dioxide core-crystalline titanium dioxide shell form titanium dioxide photocatalyst, 1% by weight of a water-soluble acrylic emulsion resin as a dispersant, and 60% by weight of 1-Methoxy-2-propanol as the remaining solvent And 70 parts by weight of a photocatalyst solution consisting of 34% by weight of 3-methoxy (Methoxy-3methyl butanol);
10 parts by weight of a curable binder solution consisting of 10% by weight of tetraethyl orthosilicate as the curable binder and 90% by weight of 2-propanol as the remaining solvent;
And a coating liquid formed by mixing 20 parts by weight of a leveling agent solution consisting of 5% by weight of BYK-346 (BYK) as a leveling agent and 95% by weight of 2-propanol as the remaining solvent;
Preparing a green lens as a plastic lens;
A second step of mounting a green lens in the first step on a rotating substrate capable of rotating at a speed of 1,000 rpm to 6,000 rpm;
A third step of depositing the coating solution in the first step at a central temperature (1 ° C. to 25 ° C.) at a concentration of 1 wt% to 6 wt% in the center of the blank lens in the second step;
Rotating the lens mounted by the rotating disk in the state of depositing the coating liquid in the third step for 10 to 30 seconds (sce) at a speed of 1,000rpm ~ 6,000rpm to spread the coating solution to the periphery of the lens by centrifugal force 0.1 ~ 7 A fourth step of uniformly applying a thickness of 占 퐉;
The lens coated with the coating liquid in the fourth step is dried for 10 minutes to 30 minutes at 80 ℃ ~ 190 ℃ to form a hydrophilic coating layer to produce an anti-fog lens, characterized in that for producing an anti-fog lens.

The method of claim 1, wherein the plastic lens is an ADD lens (ADC LENS), aryl- diglycol-carbonate lens, polycarbonate (POLYCARBONATE), PMMA (POLYMETHYL METHACRYLATE, ACRYL LENS), polyurethane, ADC (ADC), Antially characterized by being selected from any one of allyl isophthalate (DAP) resin, polyamide (POLYAMIDE), thiurethane resin, cancellation urethane resin, TRIVEX, NXT (NXT) Method of manufacturing fog lenses.

5% by weight of a crystalline titanium dioxide core-crystalline titanium dioxide shell form titanium dioxide photocatalyst, 1% by weight of a water-soluble acrylic emulsion resin as a dispersant, and 60% by weight of 1-Methoxy-2-propanol as the remaining solvent And 70 parts by weight of a photocatalyst solution consisting of 34% by weight of 3-methoxy (Methoxy-3methyl butanol);
10 parts by weight of a curable binder solution consisting of 10% by weight of tetraethyl orthosilicate as the curable binder and 90% by weight of 2-propanol as the remaining solvent;
And a coating liquid formed by mixing 20 parts by weight of a leveling agent solution consisting of 5% by weight of BYK-346 (BYK) as a leveling agent and 95% by weight of 2-propanol as the remaining solvent;
Preparing a hard coating lens as a plastic lens;
A second step of attaching a hard coating lens in the first step to a rotating substrate capable of rotating at a speed of 1,000 rpm to 6,000 rpm;
A third step of depositing the coating solution in the first step at a central temperature (1 ° C. to 25 ° C.) at a concentration of 1 wt% to 6 wt% in the center of the hard coating lens in the second step;
Rotating the lens mounted by the rotating disk in the state of depositing the coating liquid in the third step for 10 to 30 seconds (sce) at a speed of 1,000rpm ~ 6,000rpm to spread the coating solution to the periphery of the lens by centrifugal force 0.1 ~ 7 A fourth step of uniformly applying a thickness of 占 퐉;
The lens coated with the coating liquid in the fourth step is dried for 10 minutes to 30 minutes at 80 ℃ ~ 190 ℃ to form a hydrophilic coating layer to produce an anti-fog lens, characterized in that for producing an anti-fog lens.

4. The plastic lens of claim 3, wherein the plastic lens is an ADD LENS, an aryl-diglycol-carbonate lens, a polycarbonate, a polycarbonate, a polyamide lens, an acrylic lens, a polyurethane, an ADC, a DI Antially characterized by being selected from any one of allyl isophthalate (DAP) resin, polyamide (POLYAMIDE), thiurethane resin, cancellation urethane resin, TRIVEX, NXT (NXT) Method of manufacturing fog lenses.

5% by weight of a crystalline titanium dioxide core-crystalline titanium dioxide shell form titanium dioxide photocatalyst, 1% by weight of a water-soluble acrylic emulsion resin as a dispersant, and 60% by weight of 1-Methoxy-2-propanol as the remaining solvent And 70 parts by weight of a photocatalyst solution consisting of 34% by weight of 3-methoxy (Methoxy-3methyl butanol);
10 parts by weight of a curable binder solution consisting of 10% by weight of tetraethyl orthosilicate as the curable binder and 90% by weight of 2-propanol as the remaining solvent;
And a coating liquid formed by mixing 20 parts by weight of a leveling agent solution consisting of 5% by weight of BYK-346 (BYK) as a leveling agent and 95% by weight of 2-propanol as the remaining solvent;
Preparing a green lens as a plastic lens;
The coating liquid in the first step was concentrated to 1 wt% to 6 wt% at room temperature (1 ° C. to 25 ° C.), soaking the green lens prepared in the first step into the coating solution, and then 0.1 cm / sec to 0.5 cm a second step of applying the coating liquid uniformly over the front and rear surfaces of the entire lens at a thickness of 0.1 to 7 μm by pulling at a rate of / sec;
The lens coated with the coating solution in the second step is dried for 10 minutes to 30 minutes at 80 ℃ ~ 190 ℃ to form a hydrophilic coating layer to produce an anti-fog lens, characterized in that for producing an anti-fog lens.

6. The plastic lens of claim 5, wherein the plastic lens is an ADD LENS, an aryl-diglycol-carbonate lens, a POLYCARBONATE, a PMMA, a POLYMETHYL METHACRYLATE, an ACRYL LENS, a polyurethane, an ADC, a DI Antially characterized by being selected from any one of allyl isophthalate (DAP) resin, polyamide (POLYAMIDE), thiurethane resin, cancellation urethane resin, TRIVEX, NXT (NXT) Method of manufacturing fog lenses.

5% by weight of a crystalline titanium dioxide core-crystalline titanium dioxide shell form titanium dioxide photocatalyst, 1% by weight of a water-soluble acrylic emulsion resin as a dispersant, and 60% by weight of 1-Methoxy-2-propanol as the remaining solvent And 70 parts by weight of a photocatalyst solution consisting of 34% by weight of 3-methoxy (Methoxy-3methyl butanol);
10 parts by weight of a curable binder solution consisting of 10% by weight of tetraethyl orthosilicate as the curable binder and 90% by weight of 2-propanol as the remaining solvent;
And a coating liquid formed by mixing 20 parts by weight of a leveling agent solution consisting of 5% by weight of BYK-346 (BYK) as a leveling agent and 95% by weight of 2-propanol as the remaining solvent;
Preparing a hard coating lens as a plastic lens;
The coating liquid in the first step was concentrated to 1 wt% to 6 wt% at room temperature (1 ° C. to 25 ° C.), then the hard coating lens prepared in the first step was dipped in the coating solution, and then 0.1 cm / sec to A second step of applying the coating liquid uniformly over the front and rear surfaces of the entire lens at a thickness of 0.1 to 7 μm by pulling at a rate of 0.5 cm / sec;
The lens coated with the coating solution in the second step is dried for 10 minutes to 30 minutes at 80 ℃ ~ 190 ℃ to form a hydrophilic coating layer to produce an anti-fog lens, characterized in that for producing an anti-fog lens.

8. The plastic lens of claim 7, wherein the plastic lens is an ADD lens (ADC LENS), an aryl-diglycol-carbonate lens, a polycarbonate (POLYCARBONATE), a PMMA (POLYMETHYL METHACRYLATE, ACRYL LENS), a polyurethane, an ADC (ADC), a Antially characterized by being selected from any one of allyl isophthalate (DAP) resin, polyamide (POLYAMIDE), thiurethane resin, cancellation urethane resin, TRIVEX, NXT (NXT) Method of manufacturing fog lenses.

As a plastic lens, crystalline titanium dioxide or a metal-doped crystalline titanium dioxide doped with a metal component in the crystalline titanium dioxide having an average particle diameter in the range of 1 to 100 nm and essentially including an anatase phase on the entire front and rear surfaces of the blank lens. Photocatalyst solution comprising 80 to 30 wt% of amorphous titanium dioxide based on the weight of crystalline titanium dioxide, photocatalyst solution comprising a titanium dioxide photocatalyst in the form of a crystalline titanium dioxide core-amorphous titanium dioxide shell, a dispersant and a dispersion medium 95 parts by weight, a C1 to C4 hydrocarbon group having a vinyl group or a methacryloxy group, a mercapto group, an amino group or an epoxy group as a curable binder, R3 is a C1 to C8 hydrocarbon group or acyl group, a and b are An alkoxylsilane represented by the formula R1aR2bSi (OR3) 4-ab, or a hydrolyzate or partial hydrolyzate thereof, each 0 or 1; An anti-fog lens comprising a hydrophilic coating layer formed with a thickness of 0.1 to 7 μm of a coating solution containing 5 to 20 parts by weight of alkoxysilane-based compound solution and 10 to 40 parts by weight of a leveling agent solution.

10. The plastic lens of claim 9, wherein the plastic lens is an ADD LENS, an aryl-diglycol-carbonate lens, a POLYCARBONATE, a PMMA (POLYMETHYL METHACRYLATE, an ACRYL LENS), a polyurethane, an ADC, a DI Anti Allyl isophthalate (DAP) resin, polyamide (POLYAMIDE), thiou urethane resin, cancellation urethane resin, trivex (TRIVEX), NXT Fog lens.

As a plastic lens, crystalline titanium dioxide or metal-doped crystalline titanium dioxide doped with a metal component in the crystalline titanium dioxide having an average particle diameter in the range of 1 to 100 nm and essentially including the anatase phase on the entire front and rear surfaces of the hard coating lens. Photocatalyst solution comprising a titanium dioxide photocatalyst in the form of a crystalline titanium dioxide core-amorphous titanium dioxide shell, a dispersant and a dispersion medium, which form an amorphous titanium dioxide layer in the range of 10 to 50% by weight based on the weight of crystalline titanium dioxide on the surface of titanium dioxide. 80 to 95 parts by weight, a C1 to C4 hydrocarbon group having a vinyl group or a methacryloxy group, a mercapto group, an amino group or an epoxy group as a curable binder, R3 is a C1 to C8 hydrocarbon group or acyl group, a and b is an alkoxylsilane represented by the formula R1aR2bSi (OR3) 4-ab, or a hydrolyzate thereof, which is 0 or 1, respectively; or Anti-fog minute lens, characterized in that configured to include a hydrophilic coating layer formed to a thickness of 0.1 ~ 7㎛ hydrolyzate of alkoxysilane coating solution containing the silane-based compound solution, 5 to 20 parts by weight of a leveling agent and a solution of 10 to 40 parts by weight.

12. The plastic lens of claim 11, wherein the plastic lens is an ADD lens (ADC LENS), an aryl-diglycol-carbonate lens, a polycarbonate (POLYCARBONATE), a PMMA (POLYMETHYL METHACRYLATE, ACRYL LENS), a polyurethane, an ADC, a Anti Allyl isophthalate (DAP) resin, polyamide (POLYAMIDE), thiou urethane resin, cancellation urethane resin, trivex (TRIVEX), NXT Fog lens.