CN214586076U

CN214586076U - Antibacterial resin lens

Info

Publication number: CN214586076U
Application number: CN202120469907.8U
Authority: CN
Inventors: 方永增; 刘传冬; 程龙
Original assignee: Zhejiang Weixing Optical Co ltd
Current assignee: Zhejiang Weixing Optics Co ltd
Priority date: 2021-03-04
Filing date: 2021-03-04
Publication date: 2021-11-02
Anticipated expiration: 2031-03-04

Abstract

The utility model relates to an antibacterial resin lens, its characterized in that, top-down sets up antifouling membrane respectively, first anti-reflection of the body layer, first antibiotic layer, first hard coat that adds, antibacterial substrate, the second adds the hard coat, the anti-bacterial layer of second, the anti-reflection of the body layer of second, antifouling membrane. The antibacterial layer, the antibacterial substrate and the antibacterial layer of the utility model are obtained by solidifying the raw materials with quaternary ammonium salt groups, and the refractive index of the lens is 1.56 or 1.61. The resin substrate of the utility model has quaternary ammonium salt group with antibacterial effect, and has antibacterial and bactericidal effects; bacteria cannot grow on the cutting surface after the lens is cut and assembled.

Description

Antibacterial resin lens

Technical Field

The utility model belongs to the technical field of the lens technique and specifically relates to an antibacterial resin lens.

Background

The resin lens has many excellent characteristics, the specific gravity is half of that of glass, and the weight is light; the floor is impact-resistant and not easy to break, and is not easy to damage when falling to the ground; the processing is convenient, and the large-scale mass production can be realized by using the die; the application is wide, and the product series is rich; the absorption capacity to ultraviolet rays is higher than that of a glass lens; can be dyed into various colors. These outstanding advantages make resin lenses the mainstream of lenses for daily use, and are widely used in various fields such as vision correction, sports, and outdoors. However, in daily life, the two hands often contact the lenses, sweat or grease is easy to be stained on the lenses, bacteria are easy to grow, the lenses have more bacteria, and the lenses are easy to become dirty after being accumulated for a long time. Bacteria floating in the air are easily attached to the lens, and when people touch the lens with hands and take food, the bacteria or pollutants are adhered to various articles through the hands. The patent with publication number CN108070828A provides a preparation method of an antibacterial lens, and the obtained lens can remarkably improve the antibacterial and deodorant performances of the lens. However, the resin lenses are required to be cut into a specific shape to fit the size of the lens frame when the lenses are fitted. The lens that this patent provided because antibiotic layer is all coated film on the tow sides of lens, can not provide antibiotic effect on the cutting plane that the cutting produced, and the cutting plane often becomes the hotbed that bacterial growing in the lens use.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome prior art not enough, provide an antibacterial resin lens.

The purpose of the utility model is realized through the following technical scheme:

an antibacterial resin lens is provided with an antifouling film, a first anti-reflection layer, a first antibacterial layer, a first hard layer, an antibacterial substrate, a second hard layer, a second antibacterial layer, a second anti-reflection layer and an antifouling film from top to bottom.

The refractive index of the antibacterial substrate is 1.56 or 1.61.

The first antibacterial layer and the second antibacterial layer 5 are obtained by curing raw materials with quaternary ammonium salt groups.

The resin lens with the refractive index of 1.56 is formed by curing acrylate monomers, and acrylate with quaternary ammonium salt groups is used; the resin lens having a refractive index of 1.61 is obtained by polycondensation of iso (thio) cyanate and a polyol, and a polyol having a quaternary ammonium salt group in its chemical structure is used. As the quaternary ammonium salt has well-known antibacterial performance, the resin lens of the utility model has better antibacterial effect.

The first hardening layer and the second hardening layer are obtained by a conventional hardening process, dip-coating hardening liquid and then curing. The hard coating improves the surface hardness of the antibacterial resin lens and enhances the scratch resistance and friction resistance of the lens.

The first antibacterial layer and the second antibacterial layer are respectively coated on the surfaces of the first hard layer and the second hard layer by siloxane methanol solution with quaternary ammonium salt groups, and are heated and cured to obtain the antibacterial material.

And dip-coating the antibacterial substrate with the hardening liquid to respectively obtain a first hardening layer and a second hardening layer.

The first antibacterial layer and the second antibacterial layer are respectively obtained by coating siloxane methanol solution with quaternary ammonium salt groups on the surfaces of the first hardened layer and the second hardened layer.

And applying inorganic oxide and fluoride on the outer side of the first antibacterial layer to obtain a first permeation-increasing layer and a first antifouling film.

An inorganic oxide and a fluoride are also applied to the outer side of the second antibacterial layer, to obtain a second antireflection layer and a second antifouling film.

Compared with the prior art, the utility model has the positive effects that:

the anti-reflection layer and the anti-fouling film are obtained by applying inorganic oxide and fluoride on the outer sides of the two antibacterial layers in a vacuum coating machine in a vacuum coating mode. The anti-reflection layer can reduce the reflection of the lens to light and improve the light transmittance of the lens. The anti-fouling film can improve the anti-oil fouling effect of the lens surface.

By adopting the technical scheme of the utility model, the resin lens has the quaternary ammonium salt group with antibacterial effect and has antibacterial and bactericidal effects; bacteria cannot grow on the cutting surface after the lens is cut and assembled.

Drawings

FIG. 1 is a schematic structural diagram of the present application

The labels in the figures are:

1 a first anti-fouling film, wherein,

2 a first anti-reflection layer on the first substrate,

3 a first antibacterial layer, a second antibacterial layer,

4 a first hardening layer is arranged on the first surface of the base material,

5 an antibacterial substrate for a liquid crystal display device,

6 a second hard-facing layer, wherein,

7 second antimicrobial layer

8a second anti-reflection layer is arranged on the second anti-reflection layer,

and 9 is a second antifouling film.

Detailed Description

The following provides a specific embodiment of the present invention.

An antibacterial resin lens is provided with an antifouling film 1, a first antireflection layer 2, a first antibacterial layer 3, a first hard layer 4, an antibacterial substrate 5, a second hard layer 6, a second antibacterial layer 7, a second antireflection layer 8 and an antifouling film 9 from top to bottom.

The refractive index of the antibacterial substrate layer (5) of the utility model is 1.56 or 1.61, and is obtained by curing the raw material with quaternary ammonium salt group. The resin lens with the refractive index of 1.61 is obtained by carrying out polycondensation reaction on iso (thio) cyanate and polyhydric alcohol, and the chemical structure of the used polyhydric alcohol contains a quaternary ammonium salt group, so that the resin lens with the refractive index of 1.61 is obtained. The resin lens with the refractive index of 1.56 is obtained by acrylate polymerization reaction, and acrylate with a quaternary ammonium salt group is used, so that the chemical structure of the resin lens with the refractive index of 1.56 is also provided with the quaternary ammonium salt group.

Example 1

N, N-dimethylethanolamine, benzyl chloride, toluene diisocyanate (HDI) and hydroxyethyl methacrylate (HEMA) are reacted to obtain the quaternary ammonium salt modified acrylate.

In the specific implementation, the acrylate with the quaternary ammonium salt group is mixed with styrene, heated and stirred until the acrylate is completely dissolved, then other monomers, an initiator, a toner, an ultraviolet absorbent and the like in the resin lens formula are mixed according to the formula proportion, and stirred until all materials are completely dissolved, so as to obtain the casting liquid of the resin lens. And injecting the casting liquid into the cavity of the mold, putting the mold into a curing furnace, heating and preserving heat for a period of time, curing the casting liquid into a lens blank, and performing mold opening, edge grinding, cleaning and secondary curing to obtain the antibacterial substrate 5 with the refractive index of 1.56.

The first hard coat layer 4 and the second hard coat layer 6 are obtained by curing a hardening liquid. The antibacterial substrate 5 is immersed in the hardening liquid after being cleaned, slowly pulled, a layer of hardening liquid is adhered to both sides of the lens, the lens is sent into a drying tunnel or an oven, the hardening liquid is solidified after being heated for half an hour at 80 ℃, and a first hardening layer 4 and a second hardening layer 6 are attached to both sides of the antibacterial substrate 5.

Adding trimethoxy silane quaternary ammonium salt into methanol, and fully stirring to fully dissolve the trimethoxy silane quaternary ammonium salt to form a trimethoxy silane quaternary ammonium salt methanol solution with solid content of 50-65%. The above-mentioned lens is immersed in the solution, kept for 30-40 seconds, taken out and put into an oven, and baked at 90-100 ℃ for 1 hour, so as to obtain the first antibacterial layer 3 and the second antibacterial layer 7.

In a vacuum coating machine, inorganic oxides such as silicon dioxide, zirconium dioxide and indium tin oxide and fluorides are respectively applied to the outer side of the first antibacterial layer 3 in a vacuum coating mode to obtain a second transparent layer 2 and an anti-fouling film 2, inorganic oxides and fluorides are also applied to the outer side of the second antibacterial layer 7 to obtain a second anti-reflection layer 8 and a second anti-fouling film 9, and finally the antibacterial resin lens with the refractive index of 1.56 is obtained.

Example 2

Heating and refluxing chloroethanol, acetone and dodecyl dimethyl tertiary amine for 4 hours, and removing the solvent to obtain the quaternary ammonium salt with hydroxyl.

In the specific implementation, the hydroxyl quaternary ammonium salt is mixed with propylene glycol, heated and stirred until the hydroxyl quaternary ammonium salt is completely dissolved, then the iso (thio) cyanate, the polyol, the catalyst, the toner, the ultraviolet absorbent and the like in the resin lens formula are mixed according to the formula proportion, and stirred until all materials are completely dissolved, so as to obtain the casting liquid of the resin lens. And pouring the casting liquid into a mold, putting the mold into a curing furnace, heating and preserving heat for a period of time, curing the casting liquid into a lens blank, and obtaining the antibacterial substrate 5 with the refractive index of 1.61 through mold opening, edge grinding and cleaning.

The antibacterial substrate 5 is processed by the similar process as the example 1, and finally the antibacterial resin lens with the refractive index of 1.62 is obtained.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the concept of the present invention, and these improvements and decorations should also be considered as within the protection scope of the present invention.

Claims

1. An antibacterial resin lens is provided with an antifouling film, a first anti-reflection layer, a first antibacterial layer, a first hard layer, an antibacterial substrate, a second hard layer, a second antibacterial layer, a second anti-reflection layer and an antifouling film from top to bottom;

the first antibacterial layer and the second antibacterial layer are obtained by respectively coating siloxane methanol solution with quaternary ammonium salt groups on the surfaces of the first hardening layer and the second hardening layer;

2. The antimicrobial resin lens of claim 1, wherein the antimicrobial substrate has a refractive index of 1.56 or 1.61.

3. The antimicrobial resin lens of claim 1, wherein the antimicrobial substrate is dip coated with the hardening liquid to form a first hardened layer and a second hardened layer, respectively.

4. The antimicrobial resin lens of claim 1, wherein an inorganic oxide and a fluoride are also applied to the outer side of the second antimicrobial layer to provide a second antireflective layer and a second anti-smudge film.