CN110293699A - Filter the preparation method of blue light and ultraviolet light contact lenses - Google Patents
Filter the preparation method of blue light and ultraviolet light contact lenses Download PDFInfo
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- CN110293699A CN110293699A CN201910560041.9A CN201910560041A CN110293699A CN 110293699 A CN110293699 A CN 110293699A CN 201910560041 A CN201910560041 A CN 201910560041A CN 110293699 A CN110293699 A CN 110293699A
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- ultraviolet light
- contact lenses
- blue light
- light
- coating
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00038—Production of contact lenses
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00009—Production of simple or compound lenses
- B29D11/00432—Auxiliary operations, e.g. machines for filling the moulds
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
- B29D11/00—Producing optical elements, e.g. lenses or prisms
- B29D11/00865—Applying coatings; tinting; colouring
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- Engineering & Computer Science (AREA)
- Health & Medical Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Ophthalmology & Optometry (AREA)
- Mechanical Engineering (AREA)
- Eyeglasses (AREA)
- Optical Filters (AREA)
Abstract
The invention discloses a kind of filter blue light and ultraviolet light contact lenses and preparation method thereof, comprising the following steps: bare die used in the contact lenses of filter blue light and ultraviolet light is assigned needed for taking；The coating of blue-light absorbers and UV absorbers in one layer of packet is coated in die surfaces；One layer of colourless coating is covered on coating；Contact lenses are dried, filter blue light and ultraviolet light contact lens are obtained；It will filter blue light and ultraviolet light contact lens hydration process；By after aquation filter blue light and ultraviolet light contact lens transfer stabilization in the salt water that pH is 7.2 it is constant to expansion rate, filter blue light and ultraviolet light contact lenses are entered bottle in clean room and carry out wet process moise-heat sterilization, filter blue light and ultraviolet light contact lenses are obtained.The present invention is simple and easy easy to operate by filtering blue light and ultraviolet light function in the direct coating process of die surfaces to assign, and strong flexibility.Outermost coating further improves safety.
Description
Technical field
The invention belongs to contact lens technique field, in particular to a kind of preparation method for filtering blue light contact lenses.
Background technique
With science and technology and economic fast development and the tempo increase of people's Working Life, contact lenses are just increasingly by people
Receive and be increasingly becoming the daily necessities of many families.Since the comfort and convenient of contact lenses and modification are (color
Color contact lenses), it is just gradually substituting conventional frame eyeglasses and is serving in the daily work life of people.
Nearly ten years, it includes such as LED light, lithographic plate computer, TV, Smartphone that electronic product, which has obtained growing rapidly,.
Especially Smartphone is even more and is closely connected in people's lives.However electronic product can all release blue light, work as eyes
When long-time direct vision screens, the blue light that electronic product is issued can damage eye nitrile.Blue light is the short of near ultraviolet ray light wave
Wave (wavelength between), energy is strong, it can shift to an earlier date in retina prefocusing, be easy to cause scattering, therefore eyes
It need to more exert oneself to focus and can not loosen, be easy to cause eyes view object image contrast and clarity reduction for a long time and to increase eyes tired
Labor.It will not be absorbed by cornea and crystalline when moreover it injects eyes, cornea can be penetrated and crystalline is emitted directly toward macula lutea
Portion.If absorbing excessive blue light, initial stage can generate the symptoms such as eyes stung, photophobia, will make macula area inflammation, oedema for a long time, may
Hidden knot can be formed in macula area center, once the rupture of hidden knot leads to bleeding, central vision defect will be caused, can not look straight and see
Things.Therefore preventing the injury of blue light is necessary to bucket.Frame eyeglasses eyeglass would generally be in eyeglass or surface is inhaled plus blue light
Receive agent.
Chinese patent CN203965744U has freely stated a kind of colorful contact lens with filter blue light and anti-UV function, it is wrapped
Included and be formed by cladded type contact lenses by three layers of eyeglass, at the middle and upper levels eyeglass containing degree and include UV absorbers and
Blue light film coating agent is filtered, middle layer color layer is fixed on lower layer's eyeglass, and lower layer's eyeglass is soft transparent shape.In the method, upper layer
Eyeglass when containing degree, will affect eyesight and focus and the calibration result that affects vision.Upper layer eyeglass allows eyelid because directly contacting with eyelid
Directly with UV absorbers and filter blue light film coating agent contact, this can generate directly contact chemistry injury (U.S. FDA 1 does not have also
There is examination & approval filter blue light film coating agent directly to make an addition to contact lens security clearance range).Chinese patent CN105729840A is disclosed
Anti-blue light contact lenses are made in a kind of directly blue-light absorbers are added in eyeglass polymerized monomer.Although manufacturing process is simple,
All there are entire eyeglass blue-light absorbers to cause unnecessary waste, and blue-light absorbers still have and eyelid, and eyeball is direct
The chance of contact.Chinese patent CN104793349A illustrates a kind of preventing ultraviolet, the multifunction invisible eye of diffraction light and blue light
Mirror.But its production is related to multistep and directly polymerize in lens surface and make its complex manufacturing process, to make its actual operation not
By force.
Summary of the invention
The object of the present invention is to provide a kind of filter blue lights and ultraviolet light contact lenses preparation method, and preparation method is simple
To solve the problems, such as the complexity and security reliability of existing preparation method.
To achieve the above object, the invention adopts the following technical scheme:
A kind of preparation method for filtering blue light and ultraviolet light contact lenses, it is characterised in that: the following steps are included:
Step 1 assigns bare die used in the contact lenses of filter blue light and ultraviolet light needed for taking；
Step 2 coats the coating of one layer of package blue-light absorbers and UV absorbers in die surfaces；
Step 3 covers one layer of colourless coating on coating obtained in step 2；
Step 4, curing of coatings: the contact lenses that step 3 is obtained are placed in baking oven, at 80~140 DEG C of temperature into
Row drying, obtains filter blue light and ultraviolet light contact lens；
Step 5, lens hydration: it is 8~11 that filter blue light and ultraviolet light contact lens that step 4 obtains, which are placed in pH value,
Salt water in, carried out hydration process 8~20 hours in 60~90 DEG C of temperature；
Step 6 will filter blue light and the transfer of ultraviolet light contact lens in the salt water that pH is 7.2 after step 5 aquation
Stabilization is constant to expansion rate, and filter blue light and ultraviolet light contact lenses are entered bottle and carry out wet process steam to disappear in clean room
Poison obtains filter blue light and ultraviolet light contact lenses.
Further, in the step 1, bare die is unhydrated colourless or colored dry plate, and material is hydrogel, silicon
One kind of gel, fluorine gel；The water content of bare die is 38%~90%.
Further, in the step 2, coating be hydrogel, Silica hydrogel, fluorine gel, biopolymer one kind or it
Mixture be base-material biological coating；Coating water content is 0~90%.
Further, the base-material is monomer mixture, oligomer, high polymer or their mixture.
Further, in the step 2, blue-light absorbers are yellow, and orange is red, green dye colorant, nanometer
Al2O3/ polyacrylic acid mixture, nano-TiO2/ polyacrylic acid mixture, nanometer Fe2O3One of/polyacrylic acid mixture or
A variety of mixtures；The dosage of blue-light absorbers is the 0.01%~2% of the coating gross mass of step 2.
Further, in the step 2, UV absorbers UV-531, UV-P, UV-326, UV-327, UV-328,
One of UV-329, UV-234 or a variety of mixtures；The dosage of UV absorbers is the coating gross mass of step 2
0.1%~2%.
It further, include adhesion promoter in coating in the step 2, adhesion promoter is isocyanates,
Alkyl silicon, one kind of amides or epoxy base class.
Further, in the step 2, the part or all of bare die in bare die center light area is covered in the coating of die surfaces
Surface.
Further, in the step 3, the material of colourless coating is hydrogel similar with bare die, Silica hydrogel, and fluorine is solidifying
Glue, other materials for preparing contact lenses or their mixture.
Further, colourless coating used is monomer mixture, oligomer, high polymer or their mixture；Colourless painting
Layer water content is 0~90%.
The utility model has the advantages that the present invention is by filtering blue light and ultraviolet light function in the direct coating process of die surfaces to assign, it is simple
It is single easy to be easy to operate, and strong flexibility.Outermost coating further improves safety.
Specific embodiment
A kind of filter blue light of the invention and ultraviolet light contact lenses preparation method, first in die surfaces transfer Method of printing
The coating for coating one layer of package blue-light absorbers and UV absorbers, then prints one layer of colourless painting that eyeglass is completely covered again
Layer.
Wherein, bare die is as first layer, wraps up the coating of blue-light absorbers and UV absorbers as the second layer, colourless
Coating is as third layer；
First layer is directly to use bare die, and bare die used is unhydrated colourless or colored dry plate, and material used in bare die can
Think hydrogel, Silica hydrogel, fluorine gel or other materials for preparing contact lenses.Its water content is 38%~90%.
The place of the coating of die surfaces coating and cladding blue-light absorbers and UV absorbers can be eyeglass convex front surface
Or back concave surface.But be with convex surface it is preferential, mainly from the viewpoint of technique is easy to operate.
Part or all of lens surface coating and cladding blue-light absorbers and UV absorbers in die surfaces center light area
Coating be the second layer.
Used coating can be hydrogel, and Silica hydrogel, fluorine gel, other biopolymers or their mixture are base-material
Biological coating.Used coating base-material can be monomer mixture, oligomer, high polymer or their mixture.Used coating
Water content can be from 0 to 90%, and preferential selection is from 38% to 68%.Blue-light absorbers include yellow in the coating, orange,
Red, green dye colorant, nanometer Al2O3/ polyacrylic acid mixture, nano-TiO2/ polyacrylic acid mixture, nanometer Fe2O3/
One or both of polyacrylic acid mixture and two or more mixtures.The dosage of blue-light absorbers is that second layer coating is total
0.01% to the 2% of quality.UV absorbers include UV-531, UV-P, UV-326, UV-327, UV-328 in the coating,
One or both of UV-329, UV-234 and two or more mixtures.The dosage of UV absorbers is second layer coating
0.1% to the 2% of gross mass.The coating uses adhesion promoter, and adhesion promoter is isocyanates, alkyl silicon,
Amides or epoxy base class.
The method of coating coating can be transfer printing, the method for silk-screen and other colourings.
Here third layer is colourless coating similar with eyeglass ground.Colourless coating is directly printed upon on the above-mentioned second layer
Face.Coating layer thickness is unlimited can be from 0.5 micron~50 microns, and preferred thickness is 1 micron to 10 microns.
Colourless coating used is hydrogel similar with eyeglass ground, Silica hydrogel, fluorine gel, other contact lenses that prepare
Material or their mixture.Colourless coating used can be monomer mixture, oligomer, high polymer or their mixture.
Colourless coating water content used can be from 0 to 90%, and preferential selection is from 38% to 68%.
The printing of colourless coating can be printed upon on same machine with second layer coating and be finished in order, facilitate letter
It is single time saving.
Specific preparation method the following steps are included:
Step 1 takes bare die used in the required filter blue light and ultraviolet light contact lenses prepared；
Step 2 coats the coating of one layer of package blue-light absorbers and UV absorbers in die surfaces；
Step 3 prints one layer on the coating of above-mentioned package blue-light absorbers and UV absorbers and eyeglass is completely covered
Colourless coating；
Step 4, curing of coatings: the contact lenses produced are placed in baking oven, are dried at 80-140 DEG C of temperature
It is dry, obtain filter blue light and ultraviolet light contact lens；
Step 5 filters blue light and ultraviolet lens aquation: contact lens is placed in the salt water that pH value is 8-11.0,
It is carried out hydration process 8-20 hours in 60-90 DEG C of temperature；
Step 6, then the contact lens transfer after aquation, stabilization is constant to expansion rate in the salt water that pH is 7.2,
The good contact lenses of the aquation are entered into bottle in clean room and carry out wet process moise-heat sterilization, filter blue light is obtained and ultraviolet light is hidden
Shape glasses.
The present invention is described further combined with specific embodiments below.The silicon of the present embodiment/hydrogel filter blue light and
The preparation of ultraviolet light contact lenses is only intended to illustrate the present invention, and actually used silicon/hydrogel filter blue light and ultraviolet light are stealthy
The preparation of glasses is not limited to described in the present embodiment.
Embodiment 1: Silica hydrogel preparation
Raw materials used is siliceous prepolymer or the mixture by each monomer and siliceous prepolymer.Monomer used is served as reasons
Vinyl monomer containing amide (NH), or containing one of carboxyl (COOH) or hydroxyl (OH) or a variety of functional groups.It is related to contain
The preparation of the prepolymer of silicon is referred to United States Patent (USP) 4136250A, 5962548A, 5563184A.In the present embodiment, original used
Material prescription are as follows: the macromonomer of 26.97% silicone-containing, 16.75% TRIS (3- tri- (methyl-siloxy)
Silylpropyl methacrylate), 32.64% DMA (N,N-DMAA), 22.64% denatured ethyl alcohol
With 1.0% 2- hydroxy-2-methyl -1- phenyl -1- acetone (1173)。
Embodiment 2: Silica hydrogel wraps up blue-light absorbers and the preparation of UV absorbers coating
Weigh 402 grams of above-mentioned Silica hydrogel high polymer, 0.4 gram blue, UV5314.0 grams of toner, 1.1 grams of EFKA5054 auxiliary agent,
1.2 grams of Byk307 additive, 25 grams of cyclopentanone are placed in disperse mill, and abrasive media is added, is ground to particle fineness and is less than
10 μm, coating paste is made.Then 32 grams of coating paste obtained above, glycidyl methacrylate are weighed
It 2.8 grams, 12 grams of biopolymer, is mixed and stirred for uniformly, obtaining Silica hydrogel package blue-light absorbers and UV absorbers applying
Layer.
Embodiment 3: hydrogel preparation
Weigh 45 grams of 2-hydroxyethyl methacrylate, 0.8 gram of methacrylic acid, 1.5 grams of methyl methacrylate, lactic acid
15.70 grams of ethyl ester, 37.5 grams of cyclopentanone and two isobutyl of azo are 0.04 gram fine, 0.6 gram of 2 mercapto ethanol, are placed in glass reaction bottle
Be uniformly mixed, 70 degree polymerization reaction 6 hours, then in glass reaction bottle addition 0.04 gram of methylether hydroquinone stir evenly simultaneously
Stop reaction, hydrogel high polymer is prepared and finished.
Embodiment 4: hydrogel wraps up blue-light absorbers and the preparation of UV absorbers coating
Weigh 353 grams of above-mentioned hydrogel high polymer, 0.45 gram, UV3283.0 grams of toner yellow, EFKA5054 auxiliary agent 3.5
Gram, 2.2 grams of Byk307 additive, 38 grams of cyclopentanone are placed in disperse mill, and abrasive media is added, it is thin to be ground to pigment particles
At 10 μm or less, coating paste is made degree.Then 50 grams of coating paste obtained above, Glycidyl methacrylate are weighed
It 3.2 grams of glyceride, 35 grams of high polymer, is mixed and stirred for uniformly, obtaining hydrogel package blue-light absorbers and UV absorbers
Coating.
Embodiment 5: Silica hydrogel filters blue light and the preparation of ultraviolet light contact lenses
A kind of Silica hydrogel contact lenses bare die is selected, Silica hydrogel contact lens used are photopolymerization or thermal polymerization institute
The rotation mould or injection molding of system or the molding Silica hydrogel contact lenses of turning.Rotation mould or injection molding used or turning moulding process can join
As usual see document and industrial practice.
The coating in above-described embodiment 2 is taken, which is coated on to the convex table of Silica hydrogel contact lens with pad printer
Face；The high polymer in above-described embodiment 1 is then extracted again as colourless coating, is coated on the colourless coating entirely with pad printer
The nonreentrant surface of Silica hydrogel contact lens；The contact lens produced are placed in baking oven, are dried 5 hours at 100 degree；
Then the colorful contact lens dry plate being cured is placed in the salt water that pH is 9.0 and carries out hydration process 16 hours in 90 degree, so
Afterwards that contact lenses transfer stabilization in the salt water that pH is 7.2 after above-mentioned aquation is constant to expansion rate, the good silica gel of the aquation is hidden
Shape glasses, which can enter bottle in 100 grades of clean rooms and carry out wet process moise-heat sterilization, is made final products.
Embodiment 6: hydrogel filters blue light and the preparation of ultraviolet light contact lenses
A kind of hydrogel contact lens bare die is selected, hydrogel contact lens eyeglass used can be photopolymerization or hot polymerization
Close made rotation mould or injection molding or the molding Silica hydrogel contact lenses of turning.Rotation mould or injection molding used or turning moulding process
It can refer to common document and industrial practice.
The coating in above-described embodiment 4 is extracted, the coating is coated on the convex of hydrogel contact lens eyeglass with pad printer
Surface；The high polymer in above-described embodiment 3 is then extracted again as colourless coating, be coated on the colourless coating with pad printer whole
The nonreentrant surface of a hydrogel contact lens eyeglass；The contact lens produced are placed in baking oven, 3 hours are dried at 120 degree i.e.
It can；Then the contact lenses dry plate being cured is placed in the salt water that pH is 8.0 and carries out hydration process 18 hours in 90 degree, then
, the aquation good contact lenses constant to expansion rate are stablized in contact lenses transfer after above-mentioned aquation in the salt water that pH is 7.2
Bottle can be entered in clean room and carry out wet process moise-heat sterilization, final products are made.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
Member for, without departing from the principle of the present invention, can also make it is several improve, these, which are improved, also answers
It is considered as protection scope of the present invention.
Claims (7)
1. a kind of preparation method for filtering blue light and ultraviolet light contact lenses, it is characterised in that: the following steps are included:
Step 1 assigns bare die used in the contact lenses of filter blue light and ultraviolet light needed for taking；
Step 2 coats the coating of blue-light absorbers and UV absorbers in one layer of packet in die surfaces；
Step 3 covers one layer of colourless coating on coating obtained in step 2；
Step 4, curing of coatings: the contact lenses that step 3 is obtained are placed in baking oven, are dried at 80~140 DEG C of temperature
It is dry, obtain filter blue light and ultraviolet light contact lens；
Lens hydration: filter blue light and ultraviolet light contact lens that step 4 obtains are placed in the salt that pH value is 8~11 by step 5
In water, carried out hydration process 8~20 hours in 60~90 DEG C of temperature；
Step 6, by filter blue light and the transfer of ultraviolet light the contact lens stabilization in the salt water that pH is 7.2 after step 5 aquation
It is constant to expansion rate, filter blue light and ultraviolet light contact lenses are entered into bottle in clean room and carry out wet process moise-heat sterilization, is obtained
To filter blue light and ultraviolet light contact lenses.
2. the preparation method of filter blue light and ultraviolet light contact lenses according to claim 1, it is characterised in that: the step
In two, blue-light absorbers are yellow, and orange is red, green dye colorant, nanometer Al2O3/ polyacrylic acid mixture, nanometer
TiO2/ polyacrylic acid mixture, nanometer Fe2O3One of/polyacrylic acid mixture or a variety of mixtures.
3. the preparation method of filter blue light and ultraviolet light contact lenses according to claim 1 or 2, it is characterised in that: described
The dosage of blue-light absorbers is the 0.01%~2% of the coating gross mass of step 2.
4. the preparation method of filter blue light and ultraviolet light contact lenses according to claim 1, it is characterised in that: the step
In two, UV absorbers UV-531, UV-P, UV-326, UV-327, UV-328, UV-329, one of UV-234 or more
The mixture of kind.
5. the preparation method of filter blue light and ultraviolet light contact lenses according to claim 1 or 4, it is characterised in that: described
The dosage of UV absorbers is the 0.1%~2% of the coating gross mass of step 2.
6. the preparation method of filter blue light and ultraviolet light contact lenses according to claim 1, it is characterised in that: the step
It include adhesion promoter in coating in two, adhesion promoter is isocyanates, alkyl silicon, amides or epoxy base class
It is a kind of.
7. the preparation method of filter blue light and ultraviolet light contact lenses according to claim 1, it is characterised in that: the step
In two, the part or all of die surfaces in bare die center light area are covered in the coating of die surfaces.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560041.9A CN110293699A (en) | 2019-06-26 | 2019-06-26 | Filter the preparation method of blue light and ultraviolet light contact lenses |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910560041.9A CN110293699A (en) | 2019-06-26 | 2019-06-26 | Filter the preparation method of blue light and ultraviolet light contact lenses |
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| CN110293699A true CN110293699A (en) | 2019-10-01 |
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| CN201910560041.9A Pending CN110293699A (en) | 2019-06-26 | 2019-06-26 | Filter the preparation method of blue light and ultraviolet light contact lenses |
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| TWM487455U (en) * | 2014-06-12 | 2014-10-01 | Smart Performer Co Ltd | Color contact lens with blue light filtering and anti UV functions |
| CN104849789A (en) * | 2015-05-19 | 2015-08-19 | 象山激智新材料有限公司 | Anti-blue-ray optical thin-film and application thereof |
| CN105729840A (en) * | 2014-12-11 | 2016-07-06 | 奇鼎科技股份有限公司 | Preparing method for blue-ray-resisting contact lenses |
| CN108948296A (en) * | 2018-07-27 | 2018-12-07 | 望江县天长光学科技有限公司 | A kind of anti-blue light optical resin and preparation method thereof |
| CN109188715A (en) * | 2018-09-21 | 2019-01-11 | 江苏富视优生物科技有限公司 | The method for directly preparing sandwich colorful contact lens using bare die |
| CN109337558A (en) * | 2018-09-28 | 2019-02-15 | 江苏视科新材料股份有限公司 | A kind of anti-blue light coating solution, anti-blue light coated optical material and preparation method thereof |
-
2019
- 2019-06-26 CN CN201910560041.9A patent/CN110293699A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101216611A (en) * | 2007-12-31 | 2008-07-09 | 曾琪 | Blue ray radiation preventing and achromatism spectacle lens, and method of producing the same |
| TWM487455U (en) * | 2014-06-12 | 2014-10-01 | Smart Performer Co Ltd | Color contact lens with blue light filtering and anti UV functions |
| CN105729840A (en) * | 2014-12-11 | 2016-07-06 | 奇鼎科技股份有限公司 | Preparing method for blue-ray-resisting contact lenses |
| CN104849789A (en) * | 2015-05-19 | 2015-08-19 | 象山激智新材料有限公司 | Anti-blue-ray optical thin-film and application thereof |
| CN108948296A (en) * | 2018-07-27 | 2018-12-07 | 望江县天长光学科技有限公司 | A kind of anti-blue light optical resin and preparation method thereof |
| CN109188715A (en) * | 2018-09-21 | 2019-01-11 | 江苏富视优生物科技有限公司 | The method for directly preparing sandwich colorful contact lens using bare die |
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Application publication date: 20191001 |