Anti-blue light resin lens and preparation method thereof

Abstract

The invention discloses an anti-blue-light resin lens and a preparation method thereof, the anti-blue-light resin lens is prepared from the following raw materials by adopting an optimal formula: 82.60% of a resin monomer with refractive index of 1.499, 4.00% of a pigment A, 1.00% of a pigment B, 0.40% of an ultraviolet blocking agent and 12.00% of an initiator, and the new formula is added on the basis of a 1.499 lens, so that the 1.499 lens has an anti-blue-light function, and the anti-blue-light resin lens has the advantages that the anti-blue-light resin lens has the anti-blue-light function; and moreover, the defects that the abbe number of a 1.56 anti-blue-ray lens and a 1.60 anti-blue-ray lens is relatively low and a dispersion phenomenon exists are also overcome.

Description

Technical Field

[0001] The invention relates to the field of resin lens preparation, and in particular to a blue light protection resin lens and a preparation method thereof. Background Art

[0002] In recent years, the demand for optical resin lenses in the domestic and international eyewear markets has been growing. Compared with glass lenses, resin lenses have the advantages of being light, easy to dye, and easy to process, and are therefore favored by users.

[0003] For example, a Chinese patent with publication number CN115755232A discloses a dyed resin lens, wherein the raw materials of the dyed resin lens are made of the following raw materials in mass fraction: 85-90% of 1.56 refractive index resin monomer, 0-4% of 1.49 refractive index resin monomer, 0.15-0.2% of ultraviolet blocker, 0.05-1% of pigment B, 0.05-1% of pigment R and 8-14% of initiator. The present invention also provides a process for reducing the dyeing defects of the above-mentioned lenses. By adjusting the prepolymerization temperature and the curing procedure, the obtained lenses have excellent dyeing properties, which can greatly reduce the dyeing defects of the blank lenses after processing and improve the qualified rate of dyed lenses.

[0004] Another example is a Chinese patent with publication number CN117761915A, which discloses a resin lens and a preparation process that can effectively improve the anti-aging performance of a 1.56 refractive index resin lens. The 1.56 refractive index resin lens produced by this process has excellent anti-aging performance and can significantly improve the anti-yellowing performance of a 1.56 refractive index resin lens.

[0005] Another example is a Chinese patent with publication number CN117706807A, which discloses a production process for a high-refractive light-based anti-blue light resin lens. The 1.60 refractive index resin lens produced by this process has excellent anti-blue light performance and a relatively low yellow index, which can improve the problem of reduced visual contrast caused by traditional dark-based anti-blue light lenses.

[0006] To sum up, there are many disadvantages, which can be summarized as follows: There are 1.56 anti-blue light lenses and 1.60 anti-blue light lenses on the market, but the Abbe number of the lenses is low and there is dispersion, while the ordinary 1.499 lenses have a low UV value and do not have the function of anti-blue light. Summary of the invention

[0007] In view of the deficiencies in the prior art, the present invention provides a blue light blocking resin lens and a preparation method to solve the above problems.

[0008] To achieve the above objectives, the present invention is implemented through the following technical solutions.

[0009] A blue light blocking resin lens. The raw materials of the blue light blocking resin lens are made of the following raw materials according to mass fraction: 82.60% of 1.499 refractive index resin monomer, 4.00% of pigment A, 1.00% of pigment B, 0.40% of ultraviolet blocker, and 12.00% of initiator.

[0010] Preferably, the resin monomer with a refractive index of 1.499 is 2.5.8.10-tetraoxatrideca-12-enoic acid-9-oxo-2-allyl ester (diethylene glycol bisallyl carbonate).

[0011] Preferably, the pigment A is an optical lens blueing monomer.

[0012] Preferably, the pigment B is an optical lens reddening monomer.

[0013] Preferably, the ultraviolet blocking agent is UV powder with model number YX410.

[0014] Preferably, the initiator is diisopropyl peroxydicarbonate (ie, IPP-27(CR)) pre-doped with CR-39 resin monomer at a mass fraction of 27%.

[0015] Preferably, the UV cutoff wavelength of the anti-blue light resin lens is 407 nm.

[0016] Preferably, the yellow index YI of the blue light blocking resin lens is 5.

[0017] A method for preparing a blue light blocking resin lens comprises the following steps:

[0018] S1 Monomer preparation: Add part (2 kg) of 1.499 refractive index resin monomer and UV powder in required amounts into a beaker, place the beaker on a magnetic stirrer with stirring and temperature control, stir and heat to 50-55°C, stir at constant temperature for 30-60 minutes, observe that the UV powder is completely dissolved, then cool to below 35°C, add the above mixed solution into a batching kettle, add monomers and initiators according to the proportion, continue stirring, keep stirring for 60 minutes, and then stir for 20 minutes under a vacuum degree of less than 400 Pa of atmospheric pressure to complete the monomer preparation to obtain a monomer mixture, wherein the stirring rate is 80-100 r / min;

[0019] S2 pouring and curing once: the pouring tank is pressurized to 0.1-0.15Mpa with clean compressed air, and a 5.0μm filter is connected with a silicone pipe, and then the above monomer mixture is injected into a glass module with a center thickness of 1.8-12mm sealed with a rubber ring or tape through a pouring needle, and then the convex surface is placed flat on a curing tray with a rubber ring or tape facing downward, and then placed in a curing furnace, and a polymerization time of 18-28 hours, a heating rate of 1-4°C / hour, and a maximum temperature of 70-90°C is completed under a polymerization procedure to form a base resin lens;

[0020] S3 secondary curing: After the lens and the mold are separated, the lens is cut and cleaned according to the specified diameter, and then sent to the curing furnace to complete the secondary curing of the lens under a polymerization program of 2 to 3 hours and a maximum temperature of 100 to 120°C to obtain a standard parameter resin lens;

[0021] S4 lens HMC: The standard parameter resin lens prepared in S3 is sent to the HMC workshop for hardening and coating.

[0022] The invention discloses a blue light protection resin lens and a preparation method. Compared with the prior art, the blue light protection resin lens adopts the best formula and is made of the following raw materials: 82.60% of 1.499 refractive index resin monomer, 4.00% of pigment A, 1.00% of pigment B, 0.40% of ultraviolet blocker, and 12.00% of initiator. The new formula is added to a 1.499 lens, so that the 1.499 lens has the function of blue light protection, and also solves the disadvantages of low Abbe number and dispersion phenomenon of 1.56 blue light protection lenses and 1.60 blue light protection lenses. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The present invention is a flow chart of the method for preparing the blue light blocking resin lens. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0025] Example 1

[0026] A blue light blocking resin lens. The raw materials of the blue light blocking resin lens are made of the following raw materials according to mass fraction: 82.60% of 1.499 refractive index resin monomer, 4.00% of pigment A, 1.00% of pigment B, 0.40% of ultraviolet blocker, and 12.00% of initiator.

[0027] The 1.499 refractive index resin monomer is 2.5.8.10-tetraoxatrideca-12-enoic acid-9-oxo-2-allyl ester (diethylene glycol bisallyl carbonate), which is provided by Jiangsu Qianyuan New Material Technology Co., Ltd.

[0028] The pigment A is an optical lens blueing monomer, provided by Jiangsu Qianyuan New Material Technology Co., Ltd.

[0029] The pigment B is a red-emitting monomer for optical lenses, and is provided by Jiangsu Qianyuan New Materials Technology Co., Ltd.

[0030] The ultraviolet blocking agent is UV powder with model number YX410, which is provided by Jiangsu Qianyuan New Material Technology Co., Ltd.

[0031] The initiator is 27% premixed IPP provided by Changshu Nissan Chemical Co., Ltd., with CR-39 resin monomer doped with 27% diisopropyl peroxydicarbonate (ie, IPP-27 (CR)).

[0032] The UV cutoff wavelength of the anti-blue light resin lens is 407nm.

[0033] The yellow index YI of the blue light protection resin lens is 5.

[0034] A method for preparing a blue light blocking resin lens comprises the following steps:

[0035] S1 Monomer preparation: Add part (2 kg) of 1.499 refractive index resin monomer and UV powder in required amounts into a beaker, place the beaker on a magnetic stirrer with stirring and temperature control, stir and heat to 50-55°C, stir at constant temperature for 30-60 minutes, observe that the UV powder is completely dissolved, then cool to below 35°C, add the above mixed solution into a batching kettle, add monomers and initiators according to the proportion, continue stirring, keep stirring for 60 minutes, and then stir for 20 minutes under a vacuum degree of less than 400 Pa of atmospheric pressure to complete the monomer preparation to obtain a monomer mixture, wherein the stirring rate is 80-100 r / min;

[0036] S2 pouring and curing once: the pouring tank is pressurized to 0.1-0.15Mpa with clean compressed air, and a 5.0μm filter is connected with a silicone pipe, and then the above monomer mixture is injected into a glass module with a center thickness of 1.8-12mm sealed with a rubber ring or tape through a pouring needle, and then the convex surface is placed flat on a curing tray with a rubber ring or tape facing downward, and then placed in a curing furnace, and a polymerization time of 18-28 hours, a heating rate of 1-4°C / hour, and a maximum temperature of 70-90°C is completed under a polymerization procedure to form a base resin lens;

[0037] S3 secondary curing: After the lens and the mold are separated, the lens is cut and cleaned according to the specified diameter, and then sent to the curing furnace to complete the secondary curing of the lens under a polymerization program of 2 to 3 hours and a maximum temperature of 100 to 120°C to obtain a standard parameter resin lens;

[0038] S4 lens HMC: The standard parameter resin lens prepared in S3 is sent to the HMC workshop for hardening and coating.

[0039] The above formula is shown in Table 1-1 below:

[0040] Table 1-1

[0041]

[0042] Comparative Example 1

[0043] Based on the assumption that other technical features remain unchanged, the raw materials of the anti-blue light resin lens are made of the following raw materials in mass fractions: 82.60% of 1.499 refractive index resin monomer, 4.00% of pigment A, 1.00% of pigment B, 0.40% of UV blocker, and 12.00% of initiator.

[0044] The above formula is shown in Table 1-2 below:

[0045] Table 1-2

[0046]

[0047] Comparative Example 2

[0048] Based on the assumption that other technical features remain unchanged, the raw materials of the anti-blue light resin lens are made of the following raw materials in mass fractions: 82.60% of 1.499 refractive index resin monomer, 4.00% of pigment A, 1.00% of pigment B, 0.40% of UV blocker, and 12.00% of initiator.

[0049] The above formula is shown in Table 1-3 below:

[0050] Table 1-3

[0051]

[0052] Comparative Example 3

[0053] Based on the assumption that other technical features remain unchanged, the raw materials of the anti-blue light resin lens are made of the following raw materials in mass fraction: 84.50% of 1.499 refractive index resin monomer, 4.00% of pigment A, 1.20% of pigment B, 0.30% of UV blocker, and 10.00% of initiator.

[0054] The above formula is shown in Table 1-4 below:

[0055] Table 1-4

[0056]

[0057] Comparative Example 4

[0058] Based on the assumption that other technical features remain unchanged, the raw materials of the anti-blue light resin lens are made of the following raw materials in mass fractions: 82.60% of 1.499 refractive index resin monomer, 4.00% of pigment A, 1.00% of pigment B, 0.40% of UV blocker, and 12.00% of initiator.

[0059] The above formula is shown in Table 1-5 below:

[0060] Table 1-5

[0061]

[0062] The following conclusions were obtained based on the tests of the various formulations of the above-mentioned Example 1 and Comparative Examples 1-4, as shown in Tables 1-6 below. Overall, the best formulation is Example 1, with a UV cutoff wavelength of 407 nm and a yellowness index YI of 5:

[0063] Table 1-6

[0064] project Initiator UV Blocker YI <![CDATA[Uv Cut / nm ]]> Lens performance Example 1 12％ 0.4％ 5 407 Moderate hardness, good UV value Comparative Example 1 6.8％ 0.2％ 2 382 The lens is soft and the UV value is low Comparative Example 2 7％ 0.3％ 3 395 The lens is soft and the UV value is low Comparative Example 3 10％ 0.3％ 3.5 395 UV value is low Comparative Example 4 10.4％ 0.03％ 1.1 342 No blue light protection

[0065] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0066] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0067] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A blue light blocking resin lens, characterized in that: The raw materials of the anti-blue light resin lens are made of the following raw materials according to mass fraction: 82.60% of 1.499 refractive index resin monomer, 4.00% of pigment A, 1.00% of pigment B, 0.40% of ultraviolet blocker, and 12.00% of initiator.

2. The blue light blocking resin lens according to claim 1, characterized in that: The 1.499 refractive index resin monomer is 2.5.8.10-tetraoxatrideca-12-enoic acid-9-oxo-2-allyl ester (diethylene glycol bisallyl carbonate).

3. The blue light blocking resin lens according to claim 1, characterized in that: The pigment A is an optical lens blueing monomer.

4. The blue light blocking resin lens according to claim 1, characterized in that: The pigment B is a red-emitting monomer for optical lenses.

5. The blue light blocking resin lens according to claim 1, characterized in that: The ultraviolet blocking agent is UV powder with model number YX410.

6. The blue light blocking resin lens according to claim 1, characterized in that: The initiator is diisopropyl peroxydicarbonate (ie IPP-27 (CR)) pre-doped with CR-39 resin monomer with a mass fraction of 27%.

7. The blue light blocking resin lens according to claim 1, characterized in that: The UV cutoff wavelength of the anti-blue light resin lens is 407nm.

8. The blue light blocking resin lens according to claim 1, characterized in that: The yellow index YI of the blue light protection resin lens is 5.

9. A method for preparing the blue light blocking resin lens according to any one of claims 1 to 8, characterized in that: The following steps are involved: S1 Monomer preparation: Add part (2 kg) of 1.499 refractive index resin monomer and UV powder in required amounts into a beaker, place the beaker on a magnetic stirrer with stirring and temperature control, stir and heat to 50-55°C, stir at constant temperature for 30-60 minutes, observe that the UV powder is completely dissolved, then cool to below 35°C, add the above mixed solution into a batching kettle, add monomers and initiators according to the proportion, continue stirring, keep stirring for 60 minutes, and then stir for 20 minutes under a vacuum degree of less than 400 Pa of atmospheric pressure to complete the monomer preparation to obtain a monomer mixture, wherein the stirring rate is 80-100 r / min; S2 pouring and curing once: the pouring tank is pressurized to 0.1-0.15Mpa with clean compressed air, and a 5.0μm filter is connected with a silicone pipe, and then the above monomer mixture is injected into a glass module with a center thickness of 1.8-12mm sealed with a rubber ring or tape through a pouring needle, and then the convex surface is placed flat on a curing tray with a rubber ring or tape facing downward, and then placed in a curing furnace, and a polymerization time of 18-28 hours, a heating rate of 1-4°C / hour, and a maximum temperature of 70-90°C is completed under a polymerization procedure to form a base resin lens; S3 secondary curing: After the lens and the mold are separated, the lens is cut and cleaned according to the specified diameter, and then sent to the curing furnace to complete the secondary curing of the lens under a polymerization program of 2 to 3 hours and a maximum temperature of 100 to 120°C to obtain a standard parameter resin lens; S4 lens HMC: The standard parameter resin lens prepared in S3 is sent to the HMC workshop for hardening and coating.

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