CN106772707A - A kind of preparation method of the antifog plated film resin lens of anti-blue light - Google Patents

Abstract

The invention discloses a method for preparing an anti-blue light and anti-fog coating resin lens. By controlling the sequence and deposition thickness of silicon oxide, zirconium oxide and indium tin oxide on a hard film layer, a layer of anti-blue light film is vacuum plated, and then After the silicon oxide is activated by plasma, the anti-fog film is plated by dip coating. After inspection, the qualified products are stored in the warehouse. The resin lens prepared by the invention not only has anti-blue light performance, but also has anti-fog performance, has more comprehensive functions, strong practicability and greater market potential.

Description

A kind of preparation method of anti-blue light anti-fog coating resin lens

technical field

The invention relates to the technical field of spectacle lenses, in particular to a method for preparing an anti-blue light and anti-fog coating resin lens.

Background technique

In today's society, resin lenses have become an indispensable living tool for people. However, in places with high temperature difference or high humidity difference in daily life, fog droplets often appear on the surface of resin lenses, and the tiny water droplets cause diffuse reflection of light, so greatly The transmittance of visible light is reduced, affecting life and production, and even causing dangerous situations. Therefore, how to make the resin lens have an anti-fog function is gradually attracting people's attention.

According to the causes of fog droplets, there are two main ideas for the above problems: one is to increase the water contact angle on the lens surface. When the water contact angle is closer to 180°, the small water droplets generated by water vapor condensation cannot be adsorbed. On the substrate, instead of forming water droplets, the water droplets fall under the action of their own gravity to achieve the purpose of anti-fog; the other type is to reduce the water contact angle of the lens surface, when the water contact angle is closer to 0°, When the water mist is formed on the surface of the lens, it will spread quickly to form a uniform water film, thus eliminating the diffuse reflection of light and achieving the purpose of anti-fog.

Polymer hydrophilic coatings generally contain a large number of hydrophilic groups, such as hydroxyl, amino, carboxyl, etc., thus possessing hydrophilic properties. According to a large number of literature reports, the hydrophilic anti-fog coating can not be fogged for a long time in an 80°C water bath. Therefore, coating a layer of polymer film on the surface of the resin lens is a new and effective anti-fog technology. However, in the existing hydrophilic coatings, the anti-fog performance is not sufficient, or the light transmittance of the substrate will be reduced, or it is not resistant to friction, or the adhesion between the resin lens substrate and the substrate is not good. Shedding after water and so on.

At present, the biggest difficulty in meeting the performance requirements of anti-fog lenses is the adhesion of polymer hydrophilic coatings on the film layer of resin lenses. If thermal curing is used for polymer hydrophilic coatings, the multilayer film will crack when the curing temperature exceeds 50°C; but if UV curing is used, there is no adsorption force between the polymer coating and the film layer, which is very easy fall off.

In addition, blue light is one of the important components of visible light. However, blue light has a short wavelength and high energy. It can directly penetrate the crystal and reach the retina of the fundus, irritate the eyes, make the eyes sore, and cause discomfort symptoms such as fever or pain. Nowadays, with the development of technology, many products such as mobile phones, tablets, TVs, and LED lights emit blue light, which can effectively block blue light, relieve eye fatigue and protect eyes to a certain extent.

Contents of the invention

In order to solve the above technical problems, the present invention provides an anti-blue light anti-fog coated resin lens and a preparation method thereof.

The present invention adopts the following technical solutions: an anti-blue light and anti-fog coated resin lens, including a resin lens base, and a hard coat layer, an anti-blue light film layer and an anti-fog film layer arranged sequentially on the upper and lower surfaces of the base body, and the surface of the resin lens base sheet Dip-coat silicon oxide plus hard coat layer and cure, vacuum-plate an anti-blue light film layer on the hard coat layer, and use plasma surface treatment to activate hydrophilicity, and then dip-coat an anti-fog film layer, the anti-fog film layer adopts What is the silicone modified hydrophilic resin model ZXL-CFW.

The above-mentioned anti-blue light anti-fog coating resin lens includes the following specific steps:

1) Dip coating of silicon oxide and hard coating layer: hang the resin lens substrate on the pulling machine, and then go through alkali washing, acid washing, deionized water washing and drying under ultrasonic waves, and then move it to the silicon oxide hardening liquid tank. Slowly descend, the falling speed is 4mm per second, the dipping time in the tank is 20~40s, the rising speed is 4mm per second, the pulling time is 40~50s, put the lens dipped in the silicon oxide hardening liquid into the oven, the temperature Curing at 110°C for 2 hours; preferably, the resin lens substrate is a thermosetting resin lens selected from diethylene glycol bisallyl carbonate resin lenses, unsaturated acrylic resin lenses or polyurethane resin lenses ;

2) Vacuum-plated anti-blue light film: put the resin lens coated with silicon oxide and hard film layer into a metal plate, vacuumize to a pressure of 4.5×10 ^-5 Pa, turn on the ion source and electron gun, and sputter and spin deposition And plated on the silicon oxide and hard coat layer of the resin lens substrate, silicon oxide, zirconium oxide, silicon oxide, zirconium oxide, indium tin oxide, silicon oxide were evaporated in sequence, and the thickness of each layer was 1063 angstroms, 168 angstroms, 495 angstroms, 780 angstroms, 50 angstroms and 1035 angstroms, the coating temperature is controlled at 55 ℃;

3) Plasma surface treatment: After cleaning the coated resin lens with ultrasonic deionized water, use a radio frequency atmospheric low-temperature plasma instrument for surface treatment, using a power of 4.5, a treatment distance of 15mm, and a treatment atmosphere of air. The silicon oxide film layer is subjected to hydrophilic activation treatment;

4) Dip-coating anti-fog coating: Use absolute ethanol to wipe the resin lens after coating and hydrophilic activation treatment, then put the lens into the lifting machine, move it to the top of the anti-fog coating tank, and start to fall at a speed of every 2mm per second, the dipping time in the tank is 20~40s, and then rise, the rising speed is 2mm per second, the pulling time is 40~50s, the pulled resin lens is put into a clean container, and cured at room temperature for 2 hours; The anti-fog coating is silicone modified hydrophilic resin;

5) Inspection storage: after inspection, qualified products are stored in storage.

The beneficial effect of the present invention is: control silicon oxide, zirconium oxide, indium tin oxide of certain deposition thickness by vacuum coating, thereby reach the effect of anti-reflection, anti-reflection and anti-blue light, the blue light absorptivity of the lens manufactured by this method (380 ~500nm) reached 25%; and before coating the anti-fog film on the anti-blue light film, use plasma surface treatment of silicon oxide to activate its hydrophilicity, and then dip-coat silicone modified hydrophilic resin anti-fog coating , the adhesion of the anti-fog film layer is increased, so that it can be cured at room temperature. The resin lens prepared by the invention not only has anti-blue light performance, but also has anti-fog performance, more comprehensive functions, strong practicability, and great market potential.

detailed description

In order to deepen the understanding of the present invention, the present invention will be further described below in conjunction with examples, which are only used to explain the present invention and do not constitute a limitation to the protection scope of the present invention.

Example 1

1) Dip-coating silicon oxide plus hard coat layer: Hang the diethylene glycol bisallyl carbonate resin lens substrate on the puller, and then undergo alkali washing, acid washing, deionized water washing, and drying under ultrasonic waves, and then remove To the silicon oxide hardening liquid tank, slowly descend, the falling speed is 4mm per second, the dipping time in the tank is 20s, the rising speed is 4mm per second, and the pulling time is 40s, put the lens dipped in the silicon oxide hardening liquid into Curing at 110°C for 2 hours in an oven;

2) Vacuum-plated anti-blue light film: Put the resin lens coated with silicon oxide and hard film layer on the metal plate, evacuate to a pressure of 4.5×10 ^-5 Pa, turn on the ion source and electron gun, and sputter spin deposition And plated on the hard coat layer of the resin substrate, silicon oxide, zirconium oxide, silicon oxide, zirconium oxide, indium tin oxide, silicon oxide were evaporated in sequence, and the thickness of each layer was 1063 angstroms, 168 angstroms, 495 angstroms, 780 angstroms, 50 angstroms and 1035 angstroms, the coating temperature is controlled at 55 ℃;

3) Plasma surface treatment: After cleaning the coated resin lens with ultrasonic deionized water, use the RFD-200 radio frequency atmospheric low temperature plasma instrument produced by Nanjing Suman Electronics Co., Ltd. for surface treatment. The total power of the instrument is 1000W. 8 levels, the test adopts power level 4.5, the treatment distance is 15mm, the treatment atmosphere is air, and the outermost silicon oxide film layer is hydrophilized;

4) Dip-coating anti-fog coating: After wiping the resin lens with anhydrous ethanol to wipe the coating, put the lens on the lifting machine, move it to the top of the anti-fog coating, and start to fall. The falling speed is 2mm per second, and the dipping time in the tank is 20s. Then rise, the rising speed is 2mm per second, the pulling time is 40s, the pulled resin lens is put into a clean container, and cured at room temperature for 2 hours;

5) Inspection storage: After inspection, qualified products are stored in storage.

Example 2

1) Dip coating of silicon oxide and hard coat layer: hang the unsaturated acrylic resin lens substrate on the pulling machine, and then go through alkali washing, acid washing, deionized water washing and drying under ultrasonic waves, and then move to the silicon oxide hardening layer. On the liquid tank, slowly descend, the falling speed is 4mm per second, the dipping time in the tank is 30s, the rising speed is 4mm per second, and the pulling time is 45s. Curing at ℃ for 2 hours;

2) Vacuum-plated anti-blue light film: Put the resin lens coated with silicon oxide and hard film layer on the metal plate, evacuate to a pressure of 4.5×10 ^-5 Pa, turn on the ion source and electron gun, and sputter spin deposition And plated on the hard coat layer of the resin substrate, silicon oxide, zirconium oxide, silicon oxide, zirconium oxide, indium tin oxide, silicon oxide were evaporated in sequence, and the thickness of each layer was 1063 angstroms, 168 angstroms, 495 angstroms, 780 angstroms, 50 angstroms and 1035 angstroms, the coating temperature is controlled at 55 ℃;

3) Plasma surface treatment: After cleaning the coated resin lens with ultrasonic deionized water, use the RFD-200 radio frequency atmospheric low temperature plasma instrument produced by Nanjing Suman Electronics Co., Ltd. for surface treatment. The total power of the instrument is 1000W. 8 levels, the test adopts power level 4.5, the treatment distance is 15mm, the treatment atmosphere is air, and the outermost silicon oxide film layer is hydrophilized;

4) Dip-coating anti-fog coating: After wiping the resin lens with anhydrous ethanol to wipe the coating, put the lens on the lifting machine, move it to the top of the anti-fog coating, and start to fall. The falling speed is 2mm per second, and the dipping time in the tank is 30s. Then rise, the rising speed is 2mm per second, the pulling time is 45s, the pulled resin lens is put into a clean container, and cured at room temperature for 2 hours;

5) Inspection storage: After inspection, qualified products are stored in storage.

Example 3

1) Dip-coating silicon oxide and hard coat layer: Hang the polyurethane resin lens substrate on the pulling machine, and then go through alkali washing, acid washing, deionized water washing and drying under ultrasonic waves, and then move it to the silicon oxide hardening liquid tank , slowly descending, the falling speed is 4mm per second, the dipping time in the tank is 40s, the rising speed is 4mm per second, the pulling time is 50s, put the lens dipped in silicon oxide hardening liquid into an oven, and cure at 110°C 2 hours;

2) Vacuum-plated anti-blue light film: Put the resin lens coated with silicon oxide and hard film layer on the metal plate, evacuate to a pressure of 4.5×10 ^-5 Pa, turn on the ion source and electron gun, and sputter spin deposition And plated on the hard coat layer of the resin substrate, silicon oxide, zirconium oxide, silicon oxide, zirconium oxide, indium tin oxide, silicon oxide were evaporated in sequence, and the thickness of each layer was 1063 angstroms, 168 angstroms, 495 angstroms, 780 angstroms, 50 angstroms and 1035 angstroms, the coating temperature is controlled at 55 ℃;

3) Plasma surface treatment: After cleaning the coated resin lens with ultrasonic deionized water, use the RFD-200 radio frequency atmospheric low temperature plasma instrument produced by Nanjing Suman Electronics Co., Ltd. for surface treatment. The total power of the instrument is 1000W. 8 levels, the test adopts power level 4.5, the treatment distance is 15mm, the treatment atmosphere is air, and the outermost silicon oxide film layer is hydrophilized;

4) Dip-coating anti-fog coating: After wiping the resin lens with anhydrous ethanol to wipe the coating, put the lens into the lifting machine, move it to the top of the anti-fog coating, and start to fall. The falling speed is 2mm per second, and the dipping time in the tank is 40s. Then rise, the rising speed is 2mm per second, the pulling time is 50s, the pulled resin lens is put into a clean container, and cured at room temperature for 2 hours;

5) Inspection storage: After inspection, qualified products are stored in storage.

Comparative example:

1) Dip-coating silicon oxide plus hard coat layer: Hang the diethylene glycol bisallyl carbonate resin lens substrate on the puller, and then undergo alkali washing, acid washing, deionized water washing, and drying under ultrasonic waves, and then remove To the silicon oxide hardening liquid tank, slowly descend, the falling speed is 4mm per second, the dipping time in the tank is 40s, the rising speed is 4mm per second, and the pulling time is 50s, put the lens dipped in the silicon oxide hardening liquid into Curing at 110°C for 2 hours in an oven;

2) Vacuum-plated green film and waterproof film: Put the resin lens coated with silicon oxide and hard film layer on the metal plate, vacuumize to a pressure of 4.5×10 ^-5 Pa, turn on the ion source and electron gun, and sputter Spin deposition and plating on the hard coating layer of the resin substrate, silicon oxide, zirconium oxide, silicon oxide, zirconium oxide, indium tin oxide, silicon oxide, waterproofing agent are evaporated in sequence, and the thickness of each layer is 1720 angstroms, 300 angstroms angstrom, 90 angstrom, 600 angstrom, 60 angstrom, 940 angstrom and 150 angstrom, the coating temperature is controlled at 55 ℃;

3) Inspection storage: after inspection, qualified products are stored in storage.

Performance testing:

Anti-fog performance test: visual method: put the resin lens about 10cm above the constant temperature water bath filled with 50°C, and observe whether the lens surface is fogged within 5 minutes;

Anti-blue light performance test: use ultraviolet-visible spectrophotometer to test;

Soaking in clean water: Soak the lens in clean water for 16 hours, and visually check whether the film layer turns white and falls off;

Abrasion resistance test: Use a cleaning cloth to wipe the surface of the lens evenly, and wipe it back and forth 500 times to check whether the resin lens film is free from hair, and there is basically no change;

Film bonding firmness test: Cut the film by cross method to form 100 squares of 1×1mm, adhere to the outermost surface with 3M-610 pressure-sensitive tape, and then tear off the tape along the direction of 90°C, continuous 10 times, count the number of grids torn off the tape, if the number of grids torn off the surface film layer of the lens is less than 5%, it is considered qualified.

The following table is each embodiment performance test result:

,

The results show that the anti-blue light and anti-fog coating resin lens has good anti-blue light and anti-fog properties, good film firmness, and strong friction resistance, which is completely in line with the use of resin lenses.

The present invention controls the sequence and deposition thickness of silicon oxide, zirconium oxide and indium tin oxide on the hard coat layer to vacuum-plate an anti-blue light film layer, and then uses plasma to activate the silicon oxide hydrophilically, increasing the anti-fog For the adhesion of the film layer, the anti-fog film layer is plated by dip coating. The prepared resin lens not only has anti-blue light performance, but also has anti-fog performance, has more comprehensive functions, strong practicability, and greater market potential.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any other form, and any modification or equivalent change made according to the technical essence of the present invention still belongs to the scope of protection required by the present invention .

Claims (3)

1. A preparation method for anti-blue light and anti-fog coating resin lens, is characterized in that, comprises the following steps: 1) Dip coating of silicon oxide and hard coating layer: hang the resin lens substrate on the pulling machine, and then go through alkali washing, acid washing, deionized water washing and drying under ultrasonic waves, and then move it to the silicon oxide hardening liquid tank. Slowly descend, the falling speed is 4mm per second, the dipping time in the tank is 20~40s, the rising speed is 4mm per second, the pulling time is 40~50s, put the lens dipped in the silicon oxide hardening liquid into the oven, the temperature Curing at 110°C for 2 hours; 2) Vacuum-plated anti-blue light film: put the resin lens coated with silicon oxide and hard film layer into a metal plate, vacuumize to a pressure of 4.5×10 ^-5 Pa, turn on the ion source and electron gun, and sputter and spin deposition And plated on the silicon oxide and hard coat layer of the resin lens substrate, silicon oxide, zirconium oxide, silicon oxide, zirconium oxide, indium tin oxide, silicon oxide were evaporated in sequence, and the thickness of each layer was 1063 angstroms, 168 angstroms, 495 angstroms, 780 angstroms, 50 angstroms and 1035 angstroms, the coating temperature is controlled at 55 ℃; 3) Plasma surface treatment: After cleaning the coated resin lens with ultrasonic deionized water, use a radio frequency atmospheric low-temperature plasma instrument for surface treatment, using a power of 4.5, a treatment distance of 15mm, and a treatment atmosphere of air. The silicon oxide film layer is subjected to hydrophilic activation treatment; 4) Dip-coating anti-fog coating: Use absolute ethanol to wipe the resin lens after coating and hydrophilic activation treatment, then put the lens into the lifting machine, move it to the top of the anti-fog coating tank, and start to fall at a speed of every 2mm per second, the dipping time in the tank is 20~40s, and then rise, the rising speed is 2mm per second, the pulling time is 40~50s, the pulled resin lens is put into a clean container, and cured at room temperature for 2 hours; 5) Inspection storage: After inspection, qualified products are stored in storage. 2. The preparation method of a kind of anti-blue light and anti-fog coating resin lens according to claim 1, characterized in that: the resin lens substrate described in step 1) is a thermosetting resin lens, selected from diethylene glycol diene Propyl carbonate-based resin lenses, unsaturated acrylic resin-based lenses, or polyurethane-based resin lenses. 3. The method for preparing an anti-blue light and anti-fog coating resin lens according to claim 1, characterized in that: the anti-fog coating used in step 4) is a silicone-modified hydrophilic resin.