CN103101204A - Photochromic contact lenses and methods of making - Google Patents
Photochromic contact lenses and methods of making Download PDFInfo
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- CN103101204A CN103101204A CN 201210485575 CN201210485575A CN103101204A CN 103101204 A CN103101204 A CN 103101204A CN 201210485575 CN201210485575 CN 201210485575 CN 201210485575 A CN201210485575 A CN 201210485575A CN 103101204 A CN103101204 A CN 103101204A
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- contact lenses
- photochromic
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- making
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- 239000000463 material Substances 0.000 claims abstract description 50
- 238000004519 manufacturing process Methods 0.000 claims abstract description 7
- 238000000465 moulding Methods 0.000 claims abstract description 5
- 239000000975 dye Substances 0.000 claims description 34
- 229920000642 polymer Polymers 0.000 claims description 22
- 239000000203 mixture Substances 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 10
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 8
- 230000002745 absorbent Effects 0.000 claims description 7
- 239000002250 absorbent Substances 0.000 claims description 7
- 239000003292 glue Substances 0.000 claims description 7
- 230000035699 permeability Effects 0.000 claims description 7
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 6
- 230000008859 change Effects 0.000 claims description 6
- 230000004927 fusion Effects 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 claims description 5
- 239000004611 light stabiliser Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 238000010494 dissociation reaction Methods 0.000 claims description 4
- 230000005593 dissociations Effects 0.000 claims description 4
- 239000003094 microcapsule Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 239000004594 Masterbatch (MB) Substances 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000002910 structure generation Methods 0.000 claims description 2
- 230000008569 process Effects 0.000 abstract description 4
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- 102100026735 Coagulation factor VIII Human genes 0.000 description 3
- 101000911390 Homo sapiens Coagulation factor VIII Proteins 0.000 description 3
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000017 hydrogel Substances 0.000 description 3
- 238000002347 injection Methods 0.000 description 3
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- VCMLCMCXCRBSQO-UHFFFAOYSA-N 3h-benzo[f]chromene Chemical compound C1=CC=CC2=C(C=CCO3)C3=CC=C21 VCMLCMCXCRBSQO-UHFFFAOYSA-N 0.000 description 1
- KYNSBQPICQTCGU-UHFFFAOYSA-N Benzopyrane Chemical compound C1=CC=C2C=CCOC2=C1 KYNSBQPICQTCGU-UHFFFAOYSA-N 0.000 description 1
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 1
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- 208000001491 myopia Diseases 0.000 description 1
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- 235000001968 nicotinic acid Nutrition 0.000 description 1
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- 229920005989 resin Polymers 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000012719 thermal polymerization Methods 0.000 description 1
Images
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- Eyeglasses (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a method for manufacturing contact lenses, which comprises the steps of preparing a base material and a photochromic dye, and fusing the photochromic dye into the base material; a molding process is performed on the base material to produce a contact lens, such that the molded contact lens includes a photochromic dye.
Description
Technical field
The present invention relates to a kind of contact lenses, particularly a kind of photochromic contact lenses.
Background technology
Eyeglass has developed for a long time, is used for each field such as optical instrument or glasses, and most of eyeglass or glasses are stressed shape-designing and optical mirror slip function.Prior art has the optical mirror slip of so-called various unlike materials, comprises plastics, glass etc.In order to satisfy frivolous trend, the glasses eyeglass utilizes plastic production, plated film thereon, and such as anti-reflective film, uvioresistant film etc., but this kind processing procedure need adopt coating machine, and for example the rotary coating machine, coat rete.And this kind device is worth not striking, therefore not only needs expensive instrument, and additionally increases many steps and man-hour.Therefore because be that rete is coated in lens surface, easily scrape damage, and it is limited to be not that whole eyeglass itself contains the uvioresistant material effect.
Contact lenses develop thereupon, and major function still is all vision correction mutually with traditional eyewear, comprising: myopia, long sight, astigmatism, presbyopic, aberration etc.Develop with appearance color, contact lenses are developed to afterwards the blue sheet of water from early stage slide, are in order to facilitate the wearer to be easy to identification gripping in automatic nursing liquid.Generally speaking, the Main Ingredients and Appearance of most contact lenses all belongs to high molecular polymer now, and the development of material is towards emphasizing the development of high oxygen permeability and comfort level.Wherein, the silicon glue can be made into oxygen permeating amount and reaches eyeglass more than 100, the effect that can reach far above conventional lenses material used.If divide according to useful life, contact lenses can be divided into: day throwing, all throwings, two all throwings, moon throwing, season throwing, throwing half a year and the length more than 1 year are worn type.
Summary of the invention
The object of the present invention is to provide a kind of contact lens, particularly about a kind of can photochromic (photo-chromic) eyeglass.
Another purpose of the present invention is to provide a kind of and has photochromic dyes (photo-chromic dyne) in contact lens wherein.
But another object of the present invention is to provide a kind of photochromic contact lenses, to absorb ultraviolet color-changing, except absorbing ultraviolet ray, can promote the fashion effect.
For achieving the above object, the present invention by the following technical solutions:
A kind of method of making contact lenses comprises: purchase basic material and photochromic dyes (photo-chromic dyne), wherein basic material comprises polymer; Photochromic dyes is blended in basic material; Implement Composition to make contact lenses with basic material, make the contact lenses of moulding comprise photochromic dyes, be beneficial to change color under varying environment; Wherein the temperature of Composition is lower than the dissociation temperature of photochromic dyes.
The fusion program comprises mixes photochromic dyes rear heat fused with basic material; Or photochromic dyes is mixed dissolving mixing in base material solution, the Composition interpolation comprises light stabilizer, UV absorbent or above combination.Wherein the form of photochromic dyes comprises microcapsules, liquid, powder or master batch.The Composition of making contact lenses comprises injection molding, revolves mould or above combination.Wherein basic material and photochromic dyes mixed proportion be one than tens thousand of/one to one to ten thousand/; One to ten thousand/to 5/10000ths to ten thousand; 5/10000ths to ten thousand to one compare one thousandth; One than one thousandth to than hundreds of/one, wherein above-mentioned basic material comprises polymethyl methacrylate (PMMA), gas permeability half hard lens (RGP), poly hydroxy ethyl acrylate (HEMA), GMMA or silicon glue (Silicon Hydrogel).
A kind of contact lenses comprise Base Material; Reach photochromic dyes and be distributed in basic material, make contact lenses be subjected to sunlight or ultraviolet ray irradiation, and absorb ultraviolet ray and change structure generation variable color based on photochromic dyes, wherein basic material comprises polymer.Wherein above-mentioned contact lenses comprise light stabilizer, UV absorbent or above combination.Wherein above-mentioned basic material comprises polymethyl methacrylate (PMMA), gas permeability half hard lens (RGP), poly hydroxy ethyl acrylate (HEMA), GMMA or silicon glue (Silicon Hydrogel).
Description of drawings
By with reference to following being described in detail, can understand quickly above-mentioned viewpoint and advantage of the present invention, and by following description and annexed drawings, can be easier to understand spirit of the present invention.Wherein:
Fig. 1 is the embodiments of the invention schematic diagram.
[primary clustering symbol description]
Purchase program 100 fusion program 110 Composition 120 demoulding programs 130
The specific embodiment
In following narration, various specific detail is in order to the overall understanding of the embodiment of the present invention to be provided.The present invention will coordinate its preferred embodiment and accompanying graphic being specified in down, be understood that in the present invention, all preferred embodiments only are the use of illustration, be not to limit the present invention.This ripe operator also should be understood that enforcement of the present invention must one or many specific detail, or other ad hoc approach.The present invention can be applied to various contact lenses, below does an explanation.
The procedure for producing of contact lenses of the present invention can adopt mould to make contact lens, comprises injection molding or revolves mould.The casting method is suitable as short sky deserted eyeglass of phase or medical treatment is used.Revolving the mold forming method is that the quantitative liquid monomer injection of special formulation is set in the mould of rotating speed, and liquid monomer forms film because of the effect of centrifugal force under the mould High Rotation Speed.The eyeglass curvature is controlled by mould type shape, mould rotating speed, and is better because of the anti-toughness of the eyeglass of its manufacturing, is fit to be used in longly wear type or use than the deserted eyeglass of vast of heaven phase.
In the process of making contact lens, color pigment is attached to lens surface, if make and color pigment can be coated in high molecular polymer to revolve the mold forming method, halation formula dyeing makes the distribution of color on eyeglass, reach the outer rim color darker, and inner circle visible light school district still keeps Clear ﹠ Transparent.Of the present invention being characterized as at above-mentioned high molecular polymer adds photochromic dyes (but light modulation material) in wherein.Adopt the plated film mode because of traditional approach material is plated in lens surface, consider and can't be suitable for based on contact lenses.Photochromic material can absorb sunlight or ultraviolet ray and change structure produces look and becomes, and can be mixed in medium, as high molecular polymer.Remove dye adulterated in high molecular polymer, also can adopt microcapsules technology to make.Photochromic dyes powder, liquid state, master batch or microcapsules are mixed with high molecular polymer; utilize rotational forming or casting to make monomer thereupon; can provide proper temperature with melt polymer during mixing, make photochromic dyes be distributed in wherein or photochromic dyes is added in the solution of high molecular polymer and dissolve.Therefore at first purchase high molecular polymer basic material and photochromic dyes 100, referring to Fig. 1.
Thereupon, carry out both fusion steps or programs 110, the heat fused fusion program can be mixed with basic material photochromic dyes according to a ratio after is beneficial to injection molding; Or photochromic dyes is mixed dissolving mixing in base material solution.Via generation altered chemical structure after sunlight or ultraviolet ray irradiation, and produce variable color; When not being subjected to sunlight or ultraviolet irradiation can recover color originally.Photochromic dyes can be with selective dopings such as light stabilizer and UV absorbents in high molecular polymer.It is tired that interpolation antioxidant or UV absorbent can promote anti-light in high molecular polymer.Above-mentioned photochromic material can be spiropyrans, spiroxazines, fulgide, fulgimides, benzopyran, naphthopyran, spirobenzopyran, spironaphthopyran, spirobenzoxazine or spironaphthoxazine, but is not limited with above-mentioned example.And the contact lenses basic material comprises polymethyl methacrylate (PMMA), gas permeability half hard lens (RGP), poly hydroxy ethyl acrylate (HEMA), GMMA or silicon glue (Silicon Hydrogel) etc.
Can adopt photochromic dyes or photochromic molecule is joined in high molecular polymer or resin material, the whole base material photochromic dyes that distributes equably.Therefore except can absorb ultraviolet ray, and can cause colour of lens to change, increase the fashion effect.And it is tired that interpolation antioxidant or UV absorbent can promote anti-light.The ratio of photochromic dyes and polymer is about 0.01%～0.5% percentage by weight (w/w); Or 0.5%～0.1% or; 0.1%～1.5%.Processing temperature is lower than the dissociation temperature of above-mentioned photochromic material.For example, the high molecular polymer that can mix 1.5% photochromic material and 98.5% forms, and processing temperature is less than 250 ℃.With optical, the PMMA transparency is about 92%.
In manufacturing process, may need the polymer plastic drying and processing, according to deal and material, do not wait in 1 to 5 hour, then with high molecular polymer and photochromic material mixed processing, do again afterwards moulding processing.Both mixed proportions according to different purposes can be for tens thousand of/one to ten thousand/; Ten thousand/to 5/10000ths; 5/10000ths to one thousandth; Or one thousandth is to hundreds of/one.To sum up, purchase the drying plastics, mix above-mentioned photochromic material, stir and make it even, in the shaped device charging, take shape in the mould with a temperature in the temperature of setting.Can affect the depth of its basic colors for different temperatures and concentration, so can utilize it to control required color.In addition, must be lower than photochromic material dissociation temperature compacted under.Therefore must adjust melting, the forming temperature of different temperatures to coordinate different photochromic materials and various polymer, as the step 120 of Fig. 1.
Contact lenses are made flow process and are comprised that still moulding deburring and aquation check the quality.To revolve the mold forming method as example, prepare in advance the high polymer monomer raw material, and production fluid injection mould, then mold forming is revolved in fluid injection, and this processing procedure is carrying out as in the high toilet of 100,000 grades of grades, and the eyeglass deburring makes the high smoothness of edge tool thereupon.Come off on mould after making the eyeglass aquation with liquid parting again, step 130 is carried out lens quality check, eyeglass sterilization and packing shipment at last.The design of bionics double-curved surface is adopted in the design on contact lens surface.The primary raw material of contact lenses is the liquid chemical starting monomer, the chemical raw material of completing has been allocated in contact lenses manufacturer or purchase, or according to the order demand, every chemical raw material monomer allotment is mixed and gives thermal polymerization voluntarily, make the injection moulding feedstocks of standards such as meeting water content, oxygen transmission rate.Various machinery equipment such as ejaculator, injector/revolve the use of mould machine, and coordinate process parameter to control.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited to this, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; can expect easily changing or replacing, within all should being encompassed in protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion by described protection domain with claim.
Claims (13)
1. method of making photochromic contact lenses is characterized in that comprising:
Purchase basic material and photochromic dyes, wherein basic material comprises polymer;
Photochromic dyes is blended in basic material;
Implement Composition to make contact lenses with basic material, make the contact lenses of moulding comprise photochromic dyes, be beneficial to change color under varying environment; Wherein the temperature of Composition is lower than the dissociation temperature of photochromic dyes.
2. the method for making photochromic contact lenses according to claim 1, it is characterized in that above-mentioned fusion program comprise photochromic dyes is mixed with basic material after heat fused; Or photochromic dyes is mixed dissolving mixing in base material solution.
3. the method for making photochromic contact lenses according to claim 1, is characterized in that above-mentioned Composition interpolation comprises light stabilizer, UV absorbent or above combination.
4. the method for according to claim 1 and 2 or 3 described making photochromic contact lenses, is characterized in that the form of above-mentioned photochromic dyes comprises microcapsules, liquid, powder or master batch.
5. the method for making contact lenses according to claim 4, is characterized in that above-mentioned Composition comprises injection molding, revolves mould or above combination.
6. the method for making photochromic contact lenses according to claim 4, it is characterized in that basic material and photochromic dyes mixed proportion be one than tens thousand of/one to one to ten thousand/; One to ten thousand/to 5/10000ths to ten thousand; 5/10000ths to ten thousand to one compare one thousandth; One than one thousandth to than hundreds of/one.
7. the method for making photochromic contact lenses according to claim 4, is characterized in that above-mentioned basic material comprises polymethyl methacrylate, gas permeability half hard lens, poly hydroxy ethyl acrylate, GMMA or silicon glue.
8. contact lenses according to the method made of 1 to 7 described making photochromic contact lenses of claim the.
9. a photochromic contact lenses, comprising: Base Material; Reach photochromic dyes and be distributed in basic material, make contact lenses be subjected to sunlight or ultraviolet ray irradiation, and absorb ultraviolet ray and change structure generation variable color based on photochromic dyes, wherein basic material comprises polymer.
10. photochromic contact lenses according to claim 9, is characterized in that above-mentioned contact lenses comprise light stabilizer, UV absorbent or above combination.
11. according to claim 9 or 10 described photochromic contact lenses, it is characterized in that basic material and photochromic dyes mixed proportion be one than tens thousand of/one to one to ten thousand/; One to ten thousand/to 5/10000ths to ten thousand; 5/10000ths to ten thousand to one compare one thousandth; One than one thousandth to than hundreds of/one.
12. photochromic contact lenses according to claim 11 is characterized in that above-mentioned basic material comprises polymethyl methacrylate, gas permeability half hard lens, poly hydroxy ethyl acrylate, GMMA or silicon glue.
13. according to claim 9 or 10 described photochromic contact lenses is characterized in that above-mentioned basic material comprises polymethyl methacrylate, gas permeability half hard lens, poly hydroxy ethyl acrylate, GMMA or silicon glue.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| TW100141653 | 2011-11-15 | ||
| TW100141653A TWI592477B (en) | 2011-11-15 | 2011-11-15 | Photo-chromic contact lens and method of manufacturing thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103101204A true CN103101204A (en) | 2013-05-15 |
Family
ID=48309563
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210485575 Pending CN103101204A (en) | 2011-11-15 | 2012-11-15 | Photochromic contact lenses and methods of making |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103101204A (en) |
| TW (1) | TWI592477B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478878A (en) * | 2015-08-26 | 2017-03-08 | 卓弘祥 | A kind of contact lenss processing technology integrating change normal complexion anti-ultraviolet |
| WO2019033415A1 (en) * | 2017-08-18 | 2019-02-21 | 深圳先进技术研究院 | Structural color sun contact lens and preparation method therefor |
| CN111356734A (en) * | 2017-12-29 | 2020-06-30 | 依视路国际公司 | Method for manufacturing a light-absorbing polymer matrix |
-
2011
- 2011-11-15 TW TW100141653A patent/TWI592477B/en not_active IP Right Cessation
-
2012
- 2012-11-15 CN CN 201210485575 patent/CN103101204A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106478878A (en) * | 2015-08-26 | 2017-03-08 | 卓弘祥 | A kind of contact lenss processing technology integrating change normal complexion anti-ultraviolet |
| WO2019033415A1 (en) * | 2017-08-18 | 2019-02-21 | 深圳先进技术研究院 | Structural color sun contact lens and preparation method therefor |
| CN111356734A (en) * | 2017-12-29 | 2020-06-30 | 依视路国际公司 | Method for manufacturing a light-absorbing polymer matrix |
Also Published As
| Publication number | Publication date |
|---|---|
| TWI592477B (en) | 2017-07-21 |
| TW201319236A (en) | 2013-05-16 |
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| C06 | Publication | ||
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Application publication date: 20130515 |