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WO2021112351A1 - Lentille de contact colorée photochromique et son procédé de fabrication - Google Patents

Lentille de contact colorée photochromique et son procédé de fabrication Download PDF

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Publication number
WO2021112351A1
WO2021112351A1 PCT/KR2020/006641 KR2020006641W WO2021112351A1 WO 2021112351 A1 WO2021112351 A1 WO 2021112351A1 KR 2020006641 W KR2020006641 W KR 2020006641W WO 2021112351 A1 WO2021112351 A1 WO 2021112351A1
Authority
WO
WIPO (PCT)
Prior art keywords
photochromic
contact lens
lens
color
manufacturing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/KR2020/006641
Other languages
English (en)
Korean (ko)
Inventor
김달원
윤슬기
김국화
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
I Codi Co Ltd
Original Assignee
I Codi Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by I Codi Co Ltd filed Critical I Codi Co Ltd
Publication of WO2021112351A1 publication Critical patent/WO2021112351A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G02C7/049—Contact lenses having special fitting or structural features achieved by special materials or material structures
    • 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
    • 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
    • B29D11/00125—Auxiliary operations, e.g. removing oxygen from the mould, conveying moulds from a storage to the production line in an inert atmosphere
    • 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
    • B29D11/00894—Applying coatings; tinting; colouring colouring or tinting
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F2/00—Processes of polymerisation
    • C08F2/44—Polymerisation in the presence of compounding ingredients, e.g. plasticisers, dyestuffs, fillers
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
    • C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
    • C08F220/10—Esters
    • C08F220/26—Esters containing oxygen in addition to the carboxy oxygen
    • C08F220/28—Esters containing oxygen in addition to the carboxy oxygen containing no aromatic rings in the alcohol moiety
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/10—Esters; Ether-esters
    • C08K5/101—Esters; Ether-esters of monocarboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/15—Heterocyclic compounds having oxygen in the ring
    • C08K5/151—Heterocyclic compounds having oxygen in the ring having one oxygen atom in the ring
    • C08K5/1515—Three-membered rings
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/02—Lenses; Lens systems ; Methods of designing lenses
    • G02C7/04—Contact lenses for the eyes
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G—PHYSICS
    • G02—OPTICS
    • G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
    • G02C7/00—Optical parts
    • G02C7/10—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses
    • G02C7/104—Filters, e.g. for facilitating adaptation of the eyes to the dark; Sunglasses having spectral characteristics for purposes other than sun-protection

Definitions

  • the present invention relates to a photochromic color contact lens and a method for manufacturing the same. More specifically, the photochromic color contact lens and its manufacturing method include a photochromic material in a set area to correct eyesight and prevent deterioration of eyesight due to ultraviolet rays The invention relates to a manufacturing method.
  • a colored contact lens refers to a contact lens in which a pigment that supports to change all or part of the color of the wearer's iris to a selected color is applied to a selected specific area.
  • Such color contact lenses are to change the color of the iris by coloring the contact lenses for correcting eyesight according to the shape of the iris.
  • the technical problem to be achieved by the present invention is to include a photochromic material at a set position (for example, a position corresponding to the pupil of the eye) of a lens worn in the user's eye, so as to effectively block UV rays, and at the same time to protect the iris.
  • a photochromic color contact lens that can simultaneously secure vision correction, vision protection and aesthetic realization by maximizing the visual effect through the implementation of various types of colors and patterns.
  • the present invention minimizes the adsorption of waste products such as proteins and lipids even when worn for a long period of time, and at the same time prevents the pigment used for color implementation from being arbitrarily exposed to the outside. It is also an object to provide safe photochromic color contact lenses that do not
  • a photochromic color contact lens is formed through dye polymerization, and isomers having different absorption spectra because the bonding state of chemical substances is changed by light irradiation.
  • a photochromic unit performing a light color change function using a reversibly generated phenomenon; a coloring pattern unit formed by printing a color pattern set on a lower surface of the photochromic unit; and a lens body in which the photochromic part is closely attached to the upper surface and the lens body in direct contact with the cornea of the eye.
  • the photochromic part is formed in advance through dye polymerization, and then is additionally polymerized with the lens body part, wherein the dye polymerization is a mixture of a monomer, an initiator, a modifier, a solvent and a viscosity maintaining agent, and a photochromic dye.
  • the dye polymerization is a mixture of a monomer, an initiator, a modifier, a solvent and a viscosity maintaining agent, and a photochromic dye.
  • the solvent is ethyl cellosolve, 2-mercaptoethanol, cyclopentanone, ethyl lactate 45 ⁇ It can be used together as 80% by weight alone or by mixing several solvents in appropriate proportions.
  • the dye polymerization the monomer 2-hydroxyethyl methacrylate 38 to 55% by weight.
  • the colored pattern part is polymerized in advance through a hydroxyalkyl (meth) acrylate polymer and a color pattern set through pattern printing is formed on the front and / or back surfaces
  • the photochromic part has a corresponding receiving groove formed on the rear side to accommodate the colored pattern part inside, so that the colored pattern part is accommodated therein, and it is polymerized with the lens body part to form a lens. It is also contemplated to provide photochromic colored contact lenses that feature.
  • the present invention is provided as a photochromic color contact lens comprising a guide part that is closely polymerized, and a second colored pattern part coated with a pigment on the upper surface by a length set outward based on the guide part. is possible to achieve the purpose of
  • the object of the present invention can be achieved through the provision of the photochromic color contact lens, which further comprises an antifouling coating layer formed on the surface of the photochromic color contact lens.
  • the method for manufacturing a photochromic color contact lens may include: (a) forming a photochromic part through dye polymerization; (b) forming a lens body part for manufacturing a hydrogel contact lens that is the lens body part; (c) a lens forming step of manufacturing the photochromic color contact lens by combining the steps (a) and (b); or the step (c)
  • the present invention to be passed through the photochromic color contact lens manufacturing method characterized in that it further comprises; a step of forming the colored pattern part by separately polymerizing and forming the colored pattern part before printing the set color pattern to form the colored pattern part; purpose can be achieved.
  • the method for manufacturing a photochromic color contact lens further comprises the step of inserting and accommodating the colored pattern part into the rear surface of the photochromic part prepared in step (a). can also be used.
  • the method for manufacturing a photochromic color contact lens further comprises, after step (c), forming an additional antifouling coating layer on the polymerized photochromic color contact lens, wherein the forming of the antifouling coating layer includes the polymerization is completed.
  • the photochromic color contact lens according to an embodiment of the present invention can prevent damage to the pupil, retina, etc. due to ultraviolet rays, etc., and at the same time implement an aesthetic feeling through various color patterns and shapes implemented in the set part of the lens. have.
  • by minimizing the adhesion of foreign substances such as proteins and lipids due to wearing the lens it is possible to wear the lens stably for a long time.
  • FIG. 1 is an exploded perspective view showing a photochromic color contact lens according to an embodiment of the present invention.
  • FIG. 1 is an exploded perspective view showing a photochromic color contact lens 100 according to an embodiment of the present invention.
  • the photochromic color contact lens 100 includes a photochromic unit 110 , a coloring pattern unit 120 , and a lens body unit 130 .
  • the photochromic unit 110 is formed in the front center of the photochromic color contact lens 100 (for example, corresponding to the pupil region when the lens 100 is worn), Light) refers to a region capable of realizing light discoloration using a phenomenon in which isomers with different absorption spectra are reversibly generated by changing the bonding state of chemical substances by irradiation.
  • the photochromic unit 110 may have a convex front surface and a flat rear surface (eg, a convex lens shape).
  • the photochromic part 110 may be formed by polymerizing a material exhibiting photochromic properties with an organic compound.
  • the photochromic part 110 according to the present invention may be formed by dye polymerization (preliminarily polymerizing a dye containing a photochromic dye and a compound capable of forming a lens such as HEMA) before the lens 100 manufacturing step. have.
  • the photochromic unit 110 may be formed by mixing a monomer, an initiator, a modifier, a solvent and a viscosity maintaining agent, a photochromic dye or a pigment, and then performing dye polymerization with stirring within a set temperature and time condition.
  • the dye polymerization of the photochromic unit 110 according to the present invention is 38 to 55 wt% of the monomer 2-hydroxyethyl methacrylate.
  • the dye polymerization of the photochromic part 110 according to another embodiment according to the present invention, 2-hydroxymethacrylate (HEMA) 60 to 95 wt%, N-vinylpyrrolidone for hydrophilicity 3 to 38 wt.
  • HEMA 2-hydroxymethacrylate
  • N-vinylpyrrolidone for hydrophilicity 3 to 38 wt.
  • the part 110 it may be polymerized by injecting it into a contact lens mold prepared in advance.
  • composition and/or composition ratio of the above-described photochromic unit 110 may utilize components and/or composition ratios known through prior art such as existing patents.
  • the dye polymerization of the photochromic unit 110 according to the present invention may be carried out for a set time (1 to 6 hours) at a set temperature (room temperature to 130° C.) using a drying oven.
  • the photochromic unit 110 is formed by coating the surface of the above-mentioned compound on a set area such as the central front of the integrally formed photochromic color contact lens 100 (eg, a pupil-corresponding area), and then UV rays. It can also be formed through (UV) curing.
  • the coloring pattern part 120 is formed in a flat disk shape having the same diameter and shape as the photochromic part 110 , and may be attached to the rear surface of the photochromic part 110 (as shown in FIG. 1 , photochromic part 110 ). attached to the part 110 and the lens body part 130).
  • the colored pattern unit 120 according to the present invention is formed in various ways through the various color patterns (combination of shapes, shapes and/or colors) described below after polymerization based on the compound as described below.
  • the advantage of being able to manufacture the photochromic color contact lenses 100 of various color patterns can be secured (that is, the photochromic unit 110 and the lens body 130 are produced in a certain shape and shape to reduce the production cost. While saving, it is possible to implement a color pattern that meets the various needs of customers through the separately prepared coloring pattern unit 120).
  • the colored pattern part 120 according to the present invention may be prepared (polymerized) from a hydroxyalkyl (meth)acrylate polymer such as a HEMA-based polymer. More specifically, the colored pattern portion 120 according to the present invention may be formed by mixing one or more C 6 or more alkyl (meth) acrylate comonomers in a copolymer of hydroxyalkyl (meth) acrylate, through which Products such as hydrogel contact lenses made from copolymers can be formed thinner while improving strength without an accompanying increase in brittleness under stress conditions (ie, daily use conditions).
  • the front (part closely attached to the rear surface of the photochromic part 110) and/or the rear surface of the colored pattern part 120 (part closely attached to the set front surface of the lens body 130 to be described later) It is possible to print the color pattern (shape, shape, color) set in . (a color pattern is realized through application of a pigment, for this, a method such as pad printing or ink printing can be utilized).
  • the pigment applied to the colored pattern part 120 according to the present invention may be made by coating titanium dioxide or other metal oxide having a high refractive index on the plate-shaped mica surface. .
  • pearl luster occurs due to the light interference effect and reflection in the titanium dioxide layer coated on the mica surface, and through this, the color contact lens 100 according to an embodiment of the present invention. It becomes possible to express pearl luster on the iris of the wearer.
  • the processing process of mica used for the pigment for providing pearlescent gloss according to an embodiment of the present invention is as follows.
  • Titanium Sulfate Ti(SO4)2
  • distilled water distilled water in a certain ratio and stir enough for a set time, that is, set the mixing ratio of Titanium Sulfate and distilled water to have a certain ratio and concentration to proceed with the process of preparing a titanium solution.
  • the pigment can be prepared.
  • a pearlescent pigment using mica that can be applied to the colored pattern part 120 that can be used in an embodiment of the present invention is coated with titanium dioxide or other metal oxide having a high refractive index on the plate-shaped mica surface.
  • titanium dioxide or other metal oxide having a high refractive index on the plate-shaped mica surface can be made by In this case, pearl luster occurs due to the light interference effect and reflection in the titanium dioxide layer coated on the mica surface, and through this, the contact lens 100 according to an embodiment of the present invention is It is possible to express pearl luster on the wearer's iris region.
  • the above-described pigment for providing pearlescent (pigment for application to the coloring pattern unit 120) manufacturing step may be prepared through various raw materials and manufacturing processes in addition to one embodiment.
  • the pigment applied to the colored pattern part 120 proceeds from the center to the end (spaced apart from the center) of the colored pattern part 120 (or in the opposite direction) through the ratio adjustment of the above-described composition. , or atypically) may be formed so as to be relatively lighter or less bright than the pigmentation of the applied pigment. Through this, as the wearer's pupil moves to the outside, a pattern such as a set color, such as pearlescent, becomes darker or softer, can be implemented.
  • Pattern printing for pigment application by polymerizing the colored pattern part 120 as a separate member to be distinguished from the photochromic part 110 and the lens body part 130 through a separate process and then printing the color pattern to form it. Since printing defects can be confirmed more quickly in the process or polymerization process, etc., it can also support the reduction of the defect rate in the manufacturing process of the photochromic color contact lens 100 and the securing of economic efficiency by reducing the waste of materials and products due to defects. there will be
  • the rear surface of the photochromic part 110 is formed relatively larger than the cross-sectional size of the front surface of the colored pattern part 120, and a separate "accommodating groove" (not shown, At the same time, a “border” formed to have a height corresponding to the height of the color pattern unit 120 is formed on the edge of the photochromic unit 110 , and the color pattern unit is formed inside the photochromic unit 110 .
  • 120 can be completely inserted and accommodated without being exposed to the outside (that is, as the colored pattern part 120 is inserted from the rear direction of the photochromic part 110, the photochromic part 110 and the lens body part ( 130), the rim part is in direct contact with each other.
  • the pigment applied to the front surface of the colored pattern part 120 does not flow out or flow out through the surface of the lens 100 even when the lens 100 is worn for a long period of time.
  • the rear surface of the colored pattern part 120 is formed to be attached to the set front surface of the lens body part 130 to be described later, and the pigment applied to the rear surface of the colored pattern part 120 is also applied to the lens 100 even when used for a long period of time. It is possible to effectively prevent leakage to the outside.
  • a color pattern set through direct printing on the back surface of the polymerized photochromic unit 110 may be formed (a polymerization process step of the separately divided colored pattern unit 120 may be omitted).
  • the colored pattern unit 120 unlike the above-described embodiment, has a set front portion of the lens body 130 to be described later (a pupil portion and/or a pupil portion to which the photochromic portion 110 is attached).
  • a separate “coloring pattern part receiving groove” formed in the “coloring pattern part receiving groove” is formed to match the shape, shape, and thickness of the colored pattern part 120, and the colored pattern part is formed in the “colored pattern part receiving groove”.
  • the lens body 130 has the lower surface in direct contact with the cornea of the eye and the color pattern unit 120 is closely attached to the upper surface (or photochromic when the color pattern unit 120 is inserted and accommodated in the photochromic unit 110 ) Refers to a lens base to which the part 110 is closely attached.
  • the lens body 130 may be made of a material having elasticity that can form various base covers that can correspond to various eye shapes of the wearer, that is, a hydroxyalkyl (meth)acrylate polymer such as a HEMA-based polymer. .
  • the lens body 130 may be formed by mixing one or more alkyl (meth) acrylate comonomers having 6 or more carbon atoms in a copolymer of hydroxyalkyl (meth)acrylate (eg, 2-hydroxyethyl methacrylate).
  • the lens body 130 according to the present invention may additionally include a guide part 131 .
  • the guide part 131 refers to a ring-shaped ring formed to have a constant thickness based on a horizontal plane, and is seated on the set upper surface of the lens body 130, and a colored pattern part that is superimposed on the upper part. 120, or the photochromic unit 110) and the lens body unit 130 when integrally closely attached to perform a guide role, such as positioning.
  • the guide part 131 serves as a physical reference line for designating the positions of the photochromic part 110 and the colored pattern part 120 to be positioned on the lens body part 130 .
  • the guide part 131 is seated on the upper surface of the lens body part 130 so that the photochromic part 110 and the colored pattern part 120, which are in close contact from the top, do not arbitrarily deviate or drop out from the positions set in the lens manufacturing process, etc.
  • the function of temporarily fixing the position (which may be particularly useful before the polymerization process or in the polymerization process step, etc.) is also performed by being attached to or in close contact with the lower surface of the end of the photochromic part 110 (which may be the "border" described above). be able to
  • the outer end of the lower surface of the photochromic part 110 and/or the colored pattern part 120 to be positioned on the upper surface of the guide part 131 may be formed to have a thinner thickness than the cross-section of the center (inside).
  • the photochromic part 110 and/or the color pattern part 120 is attached to the upper surface of the lens body 130 at a position spaced apart from the outside by a set interval in the inward direction of the guide part 150 formed to protrude to the upper surface.
  • a "guide accommodating groove” corresponding to the guide part 131 may be separately formed on the lower surface to accommodate all or part of it inside (for example, a protrusion and a groove shape capable of accommodating the protrusion).
  • the guide part 131 may include a second colored pattern part (upper surface of the lens body part 130 ) in which a pigment is applied to the upper surface by a length set to the outside.
  • the guide part 131 may also be formed of a HEMA-based polymer including a pearlescent pigment using mica as described above or a pigment for implementing other color patterns therein.
  • the color pattern unit 120 and the guide unit 131 are visually distinguished more clearly by different colors and/or color patterns because the composition ratio is the same as the pigment applied to the color pattern unit 120 or the composition ratio is different. It may be formed as such.
  • the photochromic color contact lens 100 provides additional aesthetic feeling by separately printing (pad printing, etc.) a separate color pattern on the front and/or back after polymerization of the lens 100. and product improvement.
  • the colored pattern part 120 can be inserted and accommodated in the set front surface of the lens body part 130 that is in contact with the photochromic part 110 and is polymerized and fastened (coupled).
  • a separate “coloring pattern receiving groove” that can be formed may be formed.
  • the “coloring pattern part receiving groove” is inserted into the inside of the lens body 130 so as to correspond to the shape, shape, size and thickness of the colored pattern part 120 described above, and the coloring pattern part is formed in the groove formed in this way. Since the 120 is inserted and received, the colored pattern part 120 may not be exposed or protruded from the front of the lens body 130 . Thereafter, through a polymerization process, the lens body unit 130 accommodating the photochromic unit 110 and the colored pattern unit 120 in the set internal space is attached.
  • an additional “anti-fouling coating layer” on the photochromic color contact lens 100 that has been polymerized, the adhesion of proteins and/or lipids to the surface of the lens 100 is minimized, so that the lens 100 can be worn stably for a long time. you can also make it
  • a dye polymer is prepared in order to prevent discoloration and discoloration of the photochromic color contact lens 100 and to improve productivity by stably combining the photochromic dye and the pigment, and to shorten the production time of the dye polymer. characterized by manufacturing.
  • a photochromic part forming step of forming the photochromic part 110 through dye polymerization (b) forming a lens body part for manufacturing a hydrogel contact lens that is a lens body part 130; (c) combining the steps (a) and (b) may proceed to the lens forming step of manufacturing the photochromic color contact lens 100 .
  • a separate colored pattern part 120 is formed, that is, a color pattern set on the body formed through HEMA polymerization, etc. is printed to form the colored pattern part 120 (coloring pattern part forming step) ) may be additionally included.
  • the coloring pattern part proceeds before step (a), and then after inserting and receiving the coloring pattern part 120 into the rear surface of the photochromic part 110 prepared in step (a), it can proceed to step (c). have.
  • step (c) the step (step d, antifouling coating layer forming step) of additionally forming an “antifouling coating layer” on the photochromic color contact lens 100 formed by polymerization may be further included.
  • the “antifouling coating layer” is a pre-coating step by putting the polymerized photochromic contact lenses (100, HEMA, silicone-based photochromic contact lenses) according to the present invention into a solvent containing EGDMA and CHP and storing them at room temperature for 5 minutes.
  • step d-1 The contact lens of the coating pretreatment step was stored at room temperature for 15 minutes in a solution containing zwitterion hydrogel, iron (II) chloride, and ascorbic acid added to the contact lens of the coating pretreatment step to produce the contact lens (B) of the coating step (step d-2) ; Washing the contact lenses on which the coating step is completed with 1% sodium dodecyl sulfate solution for 5 minutes and then immersing them in distilled water for 8 hours (step d-3); It may be formed through a step (step d-4) of preparing a photochromic color contact lens 100 coated with a zwitterion hydrogel.
  • step (a) within a range corresponding to the size of the pupil, a dye polymer is preformed, and after step (c), the set surface (set parts such as front and back parts) of the contact lens 100 is colored ( Step e, an additional pattern forming step) may be further included.

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  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • Organic Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Medicinal Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Eyeglasses (AREA)

Abstract

La présente invention concerne une lentille de contact colorée photochromique et son procédé de fabrication et, plus particulièrement, une lentille de contact colorée photochromique, qui est formée d'une seule pièce par polymérisation d'un élément photochromique, d'un élément de motif coloré et d'un élément de corps de lentille, et son procédé de fabrication.
PCT/KR2020/006641 2019-12-04 2020-05-21 Lentille de contact colorée photochromique et son procédé de fabrication Ceased WO2021112351A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR10-2019-0159565 2019-12-04
KR1020190159565A KR102262016B1 (ko) 2019-12-04 2019-12-04 광변색 컬러 콘택트렌즈 및 이의 제조방법

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WO2021112351A1 true WO2021112351A1 (fr) 2021-06-10

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PCT/KR2020/006641 Ceased WO2021112351A1 (fr) 2019-12-04 2020-05-21 Lentille de contact colorée photochromique et son procédé de fabrication

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KR (1) KR102262016B1 (fr)
WO (1) WO2021112351A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114578582A (zh) * 2022-03-17 2022-06-03 江苏海伦隐形眼镜有限公司 一种光耀5d炫彩美瞳及其制备方法

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20240096216A (ko) 2022-12-19 2024-06-26 주식회사 인터로조 컬러 콘택트 렌즈 제조 방법
KR20240161741A (ko) 2023-05-04 2024-11-12 충북대학교 산학협력단 인공지능을 이용한 콘택트렌즈 제조 공정에서의 불량 검출 시스템 및 방법

Citations (5)

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