CN102289086B - Color contact lens with micro-structure surface and preparation method thereof - Google Patents
Color contact lens with micro-structure surface and preparation method thereof Download PDFInfo
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- CN102289086B CN102289086B CN 201110245274 CN201110245274A CN102289086B CN 102289086 B CN102289086 B CN 102289086B CN 201110245274 CN201110245274 CN 201110245274 CN 201110245274 A CN201110245274 A CN 201110245274A CN 102289086 B CN102289086 B CN 102289086B
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Abstract
The invention discloses a color contact lens with a micro-structure surface and a preparation method thereof. The color contact lens disclosed by the invention is characterized by comprising an inner curved surface (1) and an outer curved surface (2), wherein the inner curved surface or the outer curved surface is provided with a micro-structure forming the interference phenomenon of light; the micro-structure comprises multiple bulges or cupped micro-units; the micro-units form a two-dimensional array or a one-dimensional array in a hexagonal symmetry, or square symmetry or local symmetry mode on the inner curved surface or the outer curved surface; and the space between the adjacent micro-units is between 10 nanometer and 1 micrometers. The preparation of the lens disclosed by the invention has the advantages of low cost and convenience for realization of mass production; and the prepared contact lens is bright in color, elegant in appearance and high in biocompatibility.
Description
Technical field
Contact lens material studying technological domain of the present invention is specifically related to a kind of colorful contact lens with micro-structure surface and preparation method thereof.
Background technology
In in the past 30 years, the total number of persons that contact lenses are worn in the whole world has increased by 35 times, and colorful contact lens is also popular gradually owing to the drive of global fashion world.According to incompletely statistics, China's colorful contact lens accounts for more than 35% of contact lenses market at present.
Colorful contact lens can be divided into two big classes: the first kind is a kind of contact lenses that only have transparent or opaque colored pattern in contact lenses iris district, because the opacity in this contact lenses iris district, and part has hidden iris itself, can manifest special design and color, but because its local opacity has hindered sight line to a certain extent; The second class colorful contact lens selects for use transparent color to strengthen the color of contact lenses, the colorant of this substantial transparent is to be dispersed in whole contact lenses inside uniformly, this type of colorful contact lens not only can be deepened eye color, and can make eyes more lively, more life-like.Yet, owing in contact lenses, mixed colored pigment, these pigment often exist biocompatibility to hang down problem, serious foreign body sensation when being worn, the patient is arranged, the lighter causes wearing discomfort, problems such as corneal edema, cornea blood vessel hyperplasia, epithelial cell shedding may appear in severe patient, cause disease of cornea such as acute blood-shoot-eye illness, and then may affect one's power of vision.
That considers client wears mirror safety and health, the needs exploitation is a kind of can satisfy the life requirement that people like to be beautiful, can guarantee that again colored pigment can not influence eyes, can not cause any eye illness and uncomfortable colorful contact lens, therefore, a kind of coating is arisen at the historic moment at the colorful contact lens of intermediate course, US Patent No. 3712718 reports in 1973, a kind of contact lenses upper cut that is being shaped, and then in the otch method for making of the colorful contact lens of filling color filler, the colorful contact lens that makes in this way both can satisfy the requirement that changes the eyes outward appearance, can satisfy safety and the health of wearing mirror again, but because in manufacturing process, contact lenses need be cut, after colored filler inserted otch, be difficult to otch is airtight again, namely enable airtight this otch of success, be difficult to also guarantee that " suture line " can not cause the foreign body sensation when wearing mirror; Simultaneously, this method for making is loaded down with trivial details, and can't guarantee that again the color material of clogging is distributed in the contact lenses uniformly; In addition, the use of color pigment fails to solve fully the biocompatibility of contact lenses all the time.So, large-scale production can't be realized, the biocompatibility of contact lenses can't be guaranteed.
Therefore, it is simple that present stage presses for a kind of new method for making, not only can satisfy the requirement that changes the eyes outward appearance, but also can satisfy the safety of wearing mirror and health, colorful contact lens with a high credibility, and the present invention therefore.
Summary of the invention
The object of the invention is to provide a kind of colorful contact lens with micro-structure surface, and colorful contact lens satisfies the requirement that changes the eyes outward appearance in the prior art though solved, and it is safety inadequately, also is difficult to satisfy the problems such as health demand of Dai Jing.
In order to solve these problems of the prior art, technical scheme provided by the invention is:
A kind of colorful contact lens with micro-structure surface, described colorful contact lens has negative camber and positive camber, it is characterized in that described negative camber or positive camber have the microstructure that forms the interference of light phenomenon; Described microstructure comprises the micro unit that several are raised or sunken, described micro unit forms two-dimensional array or the one-dimensional array of hexagonal symmetry, four directions symmetry or local symmetry at negative camber or positive camber, and the spacing between the adjacent micro unit is between 10 nanometers to 1 micron.
Preferably, described micro unit is one or more raised or sunken that shape is selected from sphere, semisphere, elliposoidal, semielliptical shape, bar-shaped, cube, rectangular parallelepiped or cone-shaped body, and the particle diameter of described micro unit or pore diameter range are between 10 nanometers to 1 micron.
Preferably, described microstructure is distributed in integral surface or the local surfaces of colorful contact lens negative camber or positive camber.
Another object of the present invention is to provide a kind of preparation method with colorful contact lens of micro-structure surface, it is characterized in that said method comprising the steps of:
(1) have the preparation of the mould of micro-structure surface:
The colloid monolayer nano particle directly is fixed on the inside surface of mould so that the inside surface of mould has micro-structure surface or be template with the corrosion resistant plate with micro-structure surface, has the mould of micro-structure surface by impression or the method preparation that copies;
(2) the curing treatment step of hydrogel solution in mould:
The hydrogel solution adding is had in the mould of micro-structure surface, mould is placed high-pressure sodium lamp by the ultra-violet curing method or places in the baking oven by thermal curing method schemochrome colloidal solution is cured formation colorful contact lens sheet just;
(3) the aquation treatment step of colorful contact lens:
It is constant to place salt solution aquation to the expansivity of hydrogel to stablize the first sheet of the colorful contact lens that solidifies in the step (2), namely makes the colorful contact lens with micro-structure surface.
Preferably, the colloidal nanoparticles material is selected from one or more material in silicon dioxide, polystyrene, polymethylmethacrylate, titania, iron oxide, the gold, silver in the described method step (1); The shape of described colloidal nanoparticles is selected from one or more any mixing in sphere, elliposoidal, bar-shaped, cube, rectangular parallelepiped or the cone-shaped body; The particle diameter of colloidal nanoparticles is between 10 nanometers to 1 micron.
Preferably, after the colloidal nanoparticles material was fixed in the described method step (1), the arrangement mode with hexagonal symmetry, cubic symmetry or part symmetry between the colloidal nanoparticles was tight continuous or non-closely continuous.
Preferably, in the described method step (2) in the hydrogel solution before the hydrogel aggressiveness be one or more any mixing in methyl methacrylate, poly hydroxy ethyl acrylate, acetylbutyrylcellulose, siloxane methacrylate, fluorine silicon methacrylate, perfluor ether, N-vinylpyrrolidone, polyvinyl alcohol (PVA), glycidyl methacrylate or the Ethylene glycol dimethacrylate.
Preferably, when carrying out the aquation processing in the described method step (3), in the salt solution of pH value at 8.0-10.0 aquation 12-24 hour earlier is that aquation expansivity of sheet at the beginning of the contact lenses is stablized the constant colorful contact lens with micro-structure surface that namely gets in 7.2 the salt solution in the pH value then.
This has colorful contact lens and the manufacture method thereof of micro-structure surface, and the surface of described contact lenses has microstructure, because this microstructure has interference effect to light, and then makes contact lenses have bright outward appearance.For the positive camber that makes colorful contact lens has micro-structure surface, need have identical or similar microstructure at the mould inner surface of making contact lenses earlier.The microstructure of die surface can be the two-dimensional array of hexagonal symmetry, four directions symmetry or local symmetry that sphere, semisphere, elliposoidal, semielliptical shape, bar-shaped, cube, rectangular parallelepiped or cone-shaped body micro unit constitute; Microstructure can be positioned at the concave surface of the whole concave surface of mould, whole convex surface, part, the convex surface of part or concave surface and the convex surface of part; The micro unit that constitutes the die surface microstructure can be raised or sunken structure, and the spacing between the adjacent micro unit is between 10 nanometers to 1 micron.
The present invention is by cured concealed glasses hydrogel in the mould with microstructure inside surface, and then copies corresponding microstructure at contact lens surface, and this microstructure has interference effect to light, and then makes contact lenses have bright outward appearance.This method prepares that colored contact lenses step is simple, and cost is low, is convenient to large-scale production, and the contact lenses of preparation are bright in luster, the biocompatibility height.Therefore, this colorful contact lens can satisfy the needs that the client beautifies glasses, has security again.
With respect to scheme of the prior art, advantage of the present invention is:
The present invention obtains a kind of bright and colourful colorful contact lens of eyes that makes, and the surface of described contact lenses has microstructure, and this microstructure has interference effect to light, and then makes contact lenses have bright outward appearance.Its manufacture process comprises preparation, the curing processing of hydrogel solution in mould and the aquation processing of contact lenses of the mould with micro-structure surface.Preparation cost of the present invention is low, be convenient to large-scale production, the contact lenses of preparation are bright in luster, elegant in appearance, the biocompatibility height, having solved needs the interpolation dyestuff to prepare the method for colorful contact lens in the prior art, and can't satisfy user Dai Jing safety, health and rakish composite request.
Description of drawings
Below in conjunction with drawings and Examples the present invention is further described:
Fig. 1 is the preparation method's schematic diagram with colorful contact lens of micro-structure surface, and wherein 1 is the colorful contact lens negative camber; 2 is the colorful contact lens positive camber.
Embodiment
Below in conjunction with specific embodiment such scheme is described further.Should be understood that these embodiment are not limited to limit the scope of the invention for explanation the present invention.The implementation condition that adopts among the embodiment can be done further adjustment according to the condition of concrete producer, and not marked implementation condition is generally the condition in the normal experiment.
Step is prepared the schemochrome contact lenses as shown in Figure 1, below is to specifically describe:
1. the preparation that has the mould of microstructure inside surface:
Be that the monodispersive silica sphero-colloid nano particle close packing of 150 nanometers is at the inside surface of mould with diameter, add mould to the phase transformation critical temperature, make the inside surface that is embedded into mould of the Nano particles of silicon dioxide part that directly contacts with template, the cooling grinding tool, the ultrasonic clear colloidal nanoparticles that does not embed mould.
2. the curing of hydrogel solution in mould is handled:
The hydrogel solution (mixed solution (mol ratio 20: 1) of hydroxyethyl methylacrylate (HEMA) and Ethylene glycol dimethacrylate (EGDMA) with 100 microlitre volumes, the different two fourth cyanogen mass volume ratios 0.1% of initiating agent azo) add in the mould that is used for the contact lenses preparation, leave standstill 20min, 4 ℃ of following high voltage mercury lamp radiation 30min solidify colloidal solution;
3. the aquation of colorful contact lens is handled:
Colloidal polymer after solidifying is peeled off from mould, and directly aquation is handled; Aquation handle to divide two ones to carry out, and in the salt solution of pH8.0-10.0 aquation 12-24 hour earlier, aquation to contact lenses expansivity was stablized constantly in the salt solution of pH7.2 then, finally obtains bright contact lenses with micro-structure surface.
Step is prepared the schemochrome contact lenses as shown in Figure 1, below is to specifically describe:
1. the preparation that has the mould of microstructure inside surface:
In the preparation process of mould, the corrosion resistant plate of selecting surperficial lobed two-dimensional nano dot matrix microstructure for use is the preparation that template is carried out mould of plastics, the diameter of each nano dot is 100 nanometers in the nano-dot matrix, and the distance between the adjacent nano dot is 250 nanometers, and these points are with the hexagonal symmetric offset spread.Obtain the mould that inside surface has the nano-dot matrix microstructure of respective recesses by copying.
2. the curing of hydrogel solution in mould is handled:
The hydrogel solution (mixed solution (mol ratio 20: 1) of hydroxyethyl methylacrylate (HEMA) and Ethylene glycol dimethacrylate (EGDMA) with 100 microlitre volumes, the different two fourth cyanogen mass volume ratios 0.1% of initiating agent azo) add in the mould that is used for the contact lenses preparation, leave standstill 20min, 4 ℃ of following high voltage mercury lamp radiation 30min solidify colloidal solution;
3. the aquation of colorful contact lens is handled:
Colloidal polymer after solidifying is peeled off from mould, and directly aquation is handled; Aquation handle to divide two ones to carry out, and in the salt solution of pH8.0-10.0 aquation 12-24 hour earlier, aquation to contact lenses expansivity was stablized constantly in the salt solution of pH7.2 then, finally obtains bright contact lenses with micro-structure surface.
Embodiment 3 has the colorful contact lens of micro-structure surface
Step is prepared the schemochrome contact lenses as shown in Figure 1, below is to specifically describe:
1. the preparation that has the mould of microstructure inside surface:
In the preparation process of mould, the corrosion resistant plate of selecting surperficial lobed two-dimensional nano dot matrix microstructure for use is the preparation that template is carried out mould of plastics, the diameter of each nano dot is 100 nanometers in the nano-dot matrix, and the distance between the adjacent nano dot is 250 nanometers, and these points are with the hexagonal symmetric offset spread.Obtain the mould that inside surface has the nano-dot matrix microstructure of respective recesses by copying.
2. the curing of hydrogel solution in mould is handled:
The hydrogel solution (mixed solution (mass ratio 20: 1) of siloxane methacrylate (SMA) and Ethylene glycol dimethacrylate (EGDMA) with 100 microlitre volumes, the different two fourth cyanogen mass volume ratios 0.1% of initiating agent azo) add in the mould that is used for the contact lenses preparation, leave standstill 20min, 4 ℃ of following high voltage mercury lamp radiation 30min solidify colloidal solution;
3. the aquation of colorful contact lens is handled:
Colloidal polymer after solidifying is peeled off from mould, and directly aquation is handled; Aquation handle to divide two ones to carry out, and in the salt solution of pH8.0-10.0 aquation 12-24 hour earlier, aquation to contact lenses expansivity was stablized constantly in the salt solution of pH7.2 then, finally obtains bright contact lenses with micro-structure surface.
Embodiment 4 has the performance test of the colorful contact lens of micro-structure surface
(1) light transmission test:
Selecting the colorful contact lens with micro-structure surface for use is tested object, and it is carried out the light transmission test, and the result shows that the transmitance of white light reaches more than 95%;
(2) water cut test:
With oven drying method the colorful contact lens with micro-structure surface is carried out the water cut test, the result shows that its water percentage is higher than 60%;
(3) cytotoxicity test:
Because the cytotoxicity test can be prepared the genotoxic potential of objective reaction test sample, adopt ISO9363-1 method of testing commonly used, investigate the cytotoxicity of contact lenses and can accurately react its security, in the method, the grade that cell-cytotoxic reaction is divided into the 0-4 level, progression is more low, and the security of tested material is more high.To have the colorful contact lens of micro-structure surface and the contrast test that commercially available ultra-thin contact lenses of Hydron are done cytotoxicity, the result shows that the cytotoxicity of the colorful contact lens with micro-structure surface is the same with the ultra-thin contact lenses of commercially available Hydron, be 0 grade, illustrated that eyeglass has higher security.
Above-mentioned example only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the people who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All spirit essence is done according to the present invention equivalent transformation or modification all should be encompassed within protection scope of the present invention.
Claims (5)
1. preparation method with colorful contact lens of micro-structure surface is characterized in that said method comprising the steps of:
(1) have the preparation of the mould of micro-structure surface:
The colloid monolayer nano particle directly is fixed on the inside surface of mould so that the inside surface of mould has micro-structure surface or be template with the corrosion resistant plate with micro-structure surface, has the mould of micro-structure surface by impression or the method preparation that copies;
(2) the curing treatment step of hydrogel solution in mould:
The hydrogel solution adding is had in the mould of micro-structure surface, mould is placed high-pressure sodium lamp by the ultra-violet curing method or places in the baking oven by thermal curing method schemochrome colloidal solution is cured formation colorful contact lens sheet just;
(3) the aquation treatment step of colorful contact lens:
It is constant to place salt solution aquation to the expansivity of hydrogel to stablize the first sheet of the colorful contact lens that solidifies in the step (2), namely makes the colorful contact lens with micro-structure surface.
2. according to the method for claim 1, it is characterized in that colloidal nanoparticles material in the described method step (1) is selected from one or more the material in silicon dioxide, polystyrene, polymethylmethacrylate, titania, iron oxide, the gold, silver; The shape of described colloidal nanoparticles is selected from one or more any mixing in sphere, elliposoidal, bar-shaped, cube, rectangular parallelepiped or the cone-shaped body; The particle diameter of colloidal nanoparticles is between 10 nanometers to 1 micron.
3. according to the method for claim 1, it is characterized in that in the described method step (1) that the colloidal nanoparticles material is fixing after, closely link to each other with the arrangement mode of hexagonal symmetry, four directions symmetry or local symmetry between the colloidal nanoparticles or non-ly closely link to each other.
4. according to the method for claim 1, it is characterized in that in the described method step (2) in the hydrogel solution that aggressiveness before the hydrogel is one or more any mixing in methyl methacrylate, poly hydroxy ethyl acrylate, acetylbutyrylcellulose, siloxane methacrylate, fluorine silicon methacrylate, perfluor ether, N-vinylpyrrolidone, polyvinyl alcohol (PVA), glycidyl methacrylate or the Ethylene glycol dimethacrylate.
5. according to the method for claim 1, when it is characterized in that carrying out in the described method step (3) the aquation processing, in the salt solution of pH value at 8.0-10.0 aquation 12-24 hour earlier is that aquation expansivity of sheet at the beginning of the contact lenses is stablized the constant colorful contact lens with micro-structure surface that namely gets in 7.2 the salt solution in the pH value then.
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| CN105116564A (en) * | 2015-08-19 | 2015-12-02 | 中国科学院深圳先进技术研究院 | Contact lenses having photonic crystal structural color and manufacturing method thereof |
| CN106483675A (en) * | 2015-08-26 | 2017-03-08 | 江苏凯越眼镜有限公司 | A kind of contact lens manufacture method |
| CN106114035A (en) * | 2016-06-20 | 2016-11-16 | 浙江工业大学 | The method of emery wheel excision forming schemochrome based on blazed grating structure metal surface |
| CN111965842A (en) * | 2020-08-12 | 2020-11-20 | 安徽信息工程学院 | Hydrophobic contact lens |
| TWI792387B (en) * | 2021-07-05 | 2023-02-11 | 亮點光學股份有限公司 | Contact lenses with multifunctional points |
| CN114839797A (en) * | 2022-04-11 | 2022-08-02 | 深圳先进技术研究院 | Contact lenses with variable structural colors and methods of making the same |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US4981342A (en) * | 1987-09-24 | 1991-01-01 | Allergan Inc. | Multifocal birefringent lens system |
| US6132043A (en) * | 1998-09-04 | 2000-10-17 | Wesley-Jessen Corporation | Colored contact lenses that enhance cosmetic appearance of dark-eyed people |
| JP2001183609A (en) * | 1999-12-24 | 2001-07-06 | Seiko Epson Corp | Color vision correction implement |
| CN101148077A (en) * | 2006-09-20 | 2008-03-26 | 陈琳惠 | Contact lens and its manufacturing mould |
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