WO2019041169A1 - Contact lens with element protection function - Google Patents

Contact lens with element protection function Download PDF

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Publication number
WO2019041169A1
WO2019041169A1 PCT/CN2017/099651 CN2017099651W WO2019041169A1 WO 2019041169 A1 WO2019041169 A1 WO 2019041169A1 CN 2017099651 W CN2017099651 W CN 2017099651W WO 2019041169 A1 WO2019041169 A1 WO 2019041169A1
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WO
WIPO (PCT)
Prior art keywords
contact lens
protective layer
protection function
functional element
function according
Prior art date
Application number
PCT/CN2017/099651
Other languages
French (fr)
Chinese (zh)
Inventor
丁伟家
彭志宏
张汉宜
Original Assignee
晶硕光学股份有限公司
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 晶硕光学股份有限公司 filed Critical 晶硕光学股份有限公司
Priority to KR1020207004466A priority Critical patent/KR102349146B1/en
Priority to SG11202001100RA priority patent/SG11202001100RA/en
Priority to PCT/CN2017/099651 priority patent/WO2019041169A1/en
Publication of WO2019041169A1 publication Critical patent/WO2019041169A1/en

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    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
    • C08L1/02—Cellulose; Modified cellulose
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L25/00—Compositions of, homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an aromatic carbocyclic ring; Compositions of derivatives of such polymers
    • C08L25/02—Homopolymers or copolymers of hydrocarbons
    • C08L25/04—Homopolymers or copolymers of styrene
    • C08L25/08—Copolymers of styrene
    • C08L25/14—Copolymers of styrene with unsaturated esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L29/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by an alcohol, ether, aldehydo, ketonic, acetal or ketal radical; Compositions of hydrolysed polymers of esters of unsaturated alcohols with saturated carboxylic acids; Compositions of derivatives of such polymers
    • C08L29/02—Homopolymers or copolymers of unsaturated alcohols
    • C08L29/04—Polyvinyl alcohol; Partially hydrolysed homopolymers or copolymers of esters of unsaturated alcohols with saturated carboxylic acids
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or 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 of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L33/00—Compositions of homopolymers or 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 of salts, anhydrides, esters, amides, imides or nitriles thereof; Compositions of derivatives of such polymers
    • C08L33/04—Homopolymers or copolymers of esters
    • C08L33/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, which oxygen atoms are present only as part of the carboxyl radical
    • C08L33/10—Homopolymers or copolymers of methacrylic acid esters
    • C08L33/12—Homopolymers or copolymers of methyl methacrylate
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L39/00—Compositions of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a single or double bond to nitrogen or by a heterocyclic ring containing nitrogen; Compositions of derivatives of such polymers
    • C08L39/04—Homopolymers or copolymers of monomers containing heterocyclic rings having nitrogen as ring member
    • C08L39/06—Homopolymers or copolymers of N-vinyl-pyrrolidones
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
    • C08L71/02—Polyalkylene oxides
    • 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

Definitions

  • the present invention relates to a contact lens, and more particularly to a contact lens having a component protection function.
  • existing contact lenses can also be combined with electronic components to form a versatile contact lens product.
  • the use of a lens having a designed refractive property can effectively correct the wearer's vision (eg, myopia, hyperopia, astigmatism, etc.), and attaching a pharmaceutical product to the lens can treat an ophthalmic disease.
  • the color pattern can be placed in the contact lens to change the color of the pupil or display text or pattern on the pupil.
  • electronic components such as electrodes, sensors or light-emitting elements
  • the technical problem to be solved by the present invention is to provide a contact lens having a component protection function, which comprises a protective layer having a specific composition, to provide support and protection of functional components, and to facilitate manufacturing, in view of the deficiencies of the prior art.
  • the efficiency of the process is to provide a contact lens having a component protection function, which comprises a protective layer having a specific composition, to provide support and protection of functional components, and to facilitate manufacturing, in view of the deficiencies of the prior art.
  • the technical solution adopted by the present invention is to provide a contact lens having a component protection function, which comprises a light transmitting body, a functional component and a protective layer.
  • the functional element is disposed on the light transmissive body.
  • the protective layer is disposed on the light transmissive body and covers the functional element.
  • the functional element is covered by the transparent body and the protective layer to be isolated from the outside, and the protective layer comprises a film forming polymer, a hydrophilic polymer and a solvent.
  • the outer surface of the light transmissive body has a concave recessed space, and the protective layer and the functional element are both accommodated in the recessed space.
  • the film-forming polymer is selected from the group consisting of polyether polyols, polyethers, polyester polyols, polyacrylic acid and derivatives thereof, polymethyl methacrylate and its derivatives, styrene and A group of copolymers of acrylic acid, and combinations thereof.
  • the content of the film-forming polymer is between 1% and 60% based on the total weight of the protective layer.
  • hydrophilic polymer is selected from the group consisting of polyvinyl alcohol, cellulose and derivatives thereof, polyethylene glycol, polyvinylpyrrolidone and copolymers thereof, and combinations thereof. .
  • the content of the hydrophilic polymer is between 0.1% and 45% based on the total weight of the protective layer.
  • the solvent is selected from the group consisting of water, alcohols, amides, and the like, and the solvent content is between 30% based on the total weight of the protective layer. Between 90%.
  • the content of the film-forming polymer is between 15% and 50% based on the total weight of the protective layer.
  • the content of the hydrophilic polymer is between 5% and 40% based on the total weight of the protective layer.
  • the functional unit includes at least one of a pattern layer and an electronic component.
  • the contact lens having the component protection function provided by the present invention can be isolated from the outside by "the functional element is covered by the light-transmitting body and the protective layer"
  • the protective layer includes a film-forming polymer, a hydrophilic polymer, and a solvent, and has the effect of supporting and protecting the functional element.
  • FIG. 1 is a schematic cross-sectional view of a contact lens having a component protection function according to an embodiment of the present invention
  • Figure 2 is an enlarged schematic view of a portion II of Figure 1;
  • FIG. 3 is a schematic diagram of a first step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention
  • FIG. 4 is a schematic diagram of a second step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention
  • FIG. 5 is a schematic diagram of a third step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention
  • FIG. 6 is a schematic diagram of a fourth step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention.
  • FIG. 7 is a schematic diagram of a fifth step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention.
  • FIG. 1 is a schematic cross-sectional view of a contact lens having a component protection function according to an embodiment of the present invention
  • FIG. 2 is an enlarged schematic view of a portion II of FIG.
  • the contact lens L having the component protection function provided by the present invention includes at least a light transmitting body 1, a functional element 2, and a protective layer 3. Both the functional element 2 and the protective layer 3 are disposed on the light-transmitting body 1. It is to be noted that, in the present invention, "provided on” is not limited to being disposed directly above the object, and may be disposed inside the object. In other words, both the functional element 2 and the protective layer 3 are disposed inside the light-transmitting body 1.
  • the light-transmitting body 1 constitutes a main body of the contact lens L, and may be formed of a general water-repellent material (a water-based material mainly composed of hydroxyethyl methacrylate) or a silicone water-repellent material.
  • the silicone hydrocolloid material can also be referred to as a silicone hydrogel.
  • the light transmitting body 1 may have semi-permeable properties and may contain a water gel material or other additives other than the silicone water gel material.
  • the material of the light transmitting body 1 is not limited in the present invention.
  • the light-transmissive body 1 has an outer surface 11 and an inner surface 12 with respect to the outer surface 11.
  • the inner surface 12 of the light-transmitting body 1 is a surface that contacts the eyeball of the user when the contact lens L is worn by the user
  • the outer surface of the light-transmitting body 1 is a surface that faces the outer side of the user's eyeball.
  • the outer surface 11 of the light-transmitting body 1 has a concave recessed space, and the protective layer 3 and the functional element 2 are accommodated in the recessed space. .
  • the functional element 2 is disposed inside the light-transmitting body 1.
  • the functional component 2 includes a pattern layer or an electronic component At least one of them.
  • the functional element 2 can be a pattern layer to change the iris color of the wearer.
  • the pattern layer may be disposed on a portion of the light-transmitting body 1 corresponding to the pupil and the iris covering the wearer.
  • the functional element 2 when the functional element 2 is a patterned layer, the functional element 2 can be circumferentially disposed within the contact lens. In this way, the patterned layer can cover the wearer's pupil and the iris to completely or partially obscure the wearer's pupil and the natural color of the iris, thereby imparting a contact lens L finish effect.
  • the functional element 2 is an electronic component.
  • the electronic component can be an electrode, a signal transceiver, a light emitting component, or a sensor.
  • the kind of the electronic component is not limited.
  • an electronic component is a distance sensor that includes a transmitter and a receiver that can be used to measure the distance between the wearer's eye and the observed object.
  • the contact lens L having the component protection function provided by the present invention further includes a protective layer 3.
  • the protective layer 3 may have a thickness of between 2 ⁇ m and 30 ⁇ m. As described above, like the functional element 2, the protective layer 3 is also disposed inside the light-transmitting body 1. In the present invention, the protective layer 3 can cover the functional element 2. Specifically, when the functional element 2 is a pattern layer, and the pattern layer is circumferentially disposed in the light-transmitting body 1 of the contact lens L, the protective layer 3 covering the functional element 2 can be similarly disposed in a wraparound manner. Inside the light body 1. It should be noted that in one embodiment of the invention, the width of the protective layer 3 is greater than the width of the functional element 2 (pattern layer) to ensure a protective effect on the functional element 2.
  • the functional element 2 is fixed or attached to the protective layer 3 such that the functional element 2 is supported by the protective layer 3.
  • the functional element 2 is composed of a binder in the form of a colloid and a colorant, and the colorant is dispersed in the binder, and the molecules of the binder and the molecules of the protective layer 3 pass through the vanguard or the bond.
  • the functional element 2 is fixed to the protective layer 3.
  • the functional element 2 and the protective layer 3 are disposed closer to the outer surface 11 in the light-transmitting body 1. In other words, when the contact lens L is worn by the user, the functional element 2 and the protective layer 3 are located near the outer side of the light-transmitting body 1. Further, in the embodiment of the invention, the functional element 2 is disposed between the outer surface 1 and the protective layer 3. In this way, when the functional element 2 is a pattern layer including a color material, the protective layer 3 can prevent the color material (or ink) molecules of the functional element 2 from diffusing to the outside of the contact lens L to be in contact with the external environment.
  • the protective layer 3 can not only provide support for the functional element 2, but also prevent the material molecules (such as colorants or inks) in the functional element 2 from spreading outward.
  • the material molecules such as colorants or inks
  • the material molecules diffused to the outside of the light-transmitting body 1 of the contact lens L may be The eye contact of the wearer affects the health of the eyeball.
  • the composition of the protective layer 3 and the ratio between the same must be appropriately selected.
  • the protective layer 3 since different materials are needed to transfer the different materials of the contact lens L during the manufacturing process of the contact lens L, the protective layer 3 also needs to be selected in accordance with the implement or the mold in the manufacturing process, so that the protective layer 3 is selected. It can be smoothly formed inside the light-transmitting body 1 of the contact lens L.
  • the protective layer 3 must have an appropriate viscosity and affinity, and the viscosity and affinity of the protective layer 3 are controlled by selecting different components in appropriate proportions. For example, when the protective layer 3 has a desired viscosity, it is possible to prevent the material of the protective layer from slipping or failing to adhere smoothly when transferring between the implements.
  • the protective layer 3 includes a film-forming polymer, a hydrophilic polymer, and a solvent.
  • the film-forming polymer is selected from the group consisting of polyether polyols, polyethers, polyester polyols, polyacrylic acid and derivatives thereof, and polymethylmethacrylate. And a group of its derivatives, styrene-acrylic acid copolymer, and combinations thereof.
  • the polyether polyol may have a molecular weight of between 5,000 and 500,000, which may be polyethylene glycol, polypropylene glycol, glycerin, caprolactone or Any combination of these.
  • the polyether may have a molecular weight of between 5,000 and 500,000, which may be ethylene oxide, propylene oxide, glycerin or any combination thereof.
  • the polyester polyol may be oxalic acid, malonic acid, glycerin or any combination thereof.
  • Polyacrylic acid can have a molecular weight between 5,000 and 1.5 million.
  • the polyacrylic acid derivative may be a potassium salt of a polyacrylate such as acrylic acid and a sodium salt. Polymethyl methacrylate can have a molecular weight between 5,000 and 500,000.
  • the copolymer of styrene and acrylic acid may be formed from 10-90% styrene monomer and 90-10% acrylic acid.
  • the content of the film-forming polymer is between 1 and 60% based on the total weight of the protective layer 3. Specifically, if the content of the film-forming polymer is less than 1%, the viscosity characteristic of the protective layer 3 is adversely affected and cannot be fixed to a specific position in the light-transmitting body 1, and if the content of the film-forming polymer is larger than 60%, the viscosity of the protective layer 3 is too high to facilitate the manufacturing process of the contact lens L. In one embodiment of the present invention, the content of the film-forming polymer is between 15 and 50% based on the total weight of the protective layer 3.
  • the hydrophilic polymer is selected from the group consisting of polyvinyl alcohol, cellulose and its derivatives, polyethylene alcohol, polyvinyl pyrrolidone and copolymers thereof. (polyvinylpyrrolidone and its copolymer), and a group of combinations thereof.
  • polyvinyl alcohol can be a polymer having a degree of polymerization between 500 and 10,000.
  • Cellulose can have between 5000 and Molecular weight between 500,000.
  • Polyethylene glycol can have a molecular weight between 500 and 500,000.
  • the polyvinylpyrrolidone may have a molecular weight of between 5,000 and 1,500,000.
  • the content of the hydrophilic polymer is between 0.1 and 45% based on the total weight of the protective layer 3.
  • the hydrophilic polymer is present in an amount between 5 and 40% based on the total weight of the protective layer 3.
  • the content of the hydrophilic polymer is less than 1%, the viscosity characteristic of the protective layer 3 is adversely affected and cannot be fixed to a specific position in the light-transmitting body 1, and if the content of the hydrophilic polymer is larger than 45%, the viscosity of the protective layer 3 is too high to facilitate the manufacturing process of the contact lens L.
  • the content of the hydrophilic polymer also affects the comfort of the contact lens L when worn.
  • the solvent is a group selected from the group consisting of water, alcohols, amides, and the like.
  • the solvent may be ethanol, propanol, N-methylpyrrolidone, dimethylacetamide, dimethylformamide or the like.
  • the solvent content is between 30 and 90% based on the total weight of the protective layer 3.
  • Table 1 shows an example in which the protective layer 3 is formed using different film-forming polymers, hydrophilic polymers, and solvents having different contents.
  • the evaluation results obtained by evaluating different examples and comparative examples are also listed in the table.
  • ⁇ represents good results in film formation/phase transfer
  • ⁇ represents the effect of film formation/phase transfer
  • ⁇ represents poor film formation/phase transfer.
  • an acceptable film formation/phase transfer effect can be obtained by using the protective layer 3 provided by the present invention having a specific composition and its related ratio.
  • Comparative Example 1 the content of the solvent in Comparative Example 1 was less than 30%, the content of the film-forming polymer of Comparative Example 2 was more than 60%, and the content of the hydrophilic polymer of Comparative Example 3 was more than 45%, and thus, Comparative Examples 1 to 3 failed to obtain a good film formation/phase transfer effect.
  • FIG. 3 to FIG. 7 are schematic diagrams showing a first step, a second step, a third step, a fourth step, and a fifth step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention.
  • the contact lens L having the component protection function provided by the present invention needs to be manufactured using at least one set of molding dies including the lower mold M1 and the upper mold M2.
  • the lower mold M1 is provided.
  • the lower mold can be made of a metal or a non-metal material.
  • the lower mold M1 may be molded from a steel sheet to have a concave surface, and the concave surface surrounds a groove for receiving a material.
  • the lower mold M1 is for carrying a material for forming the contact lens L.
  • the protective layer 3 and the functional element 2 are provided on the lower mold M1.
  • the functional element 2 comprises a patterned layer of colorant.
  • the protective layer 3 and the pattern layer can be disposed in the lower mold M1 by pad printing.
  • the protective layer 3 may be first disposed on the inner surface of the lower mold M1, and the functional element 2 is directly disposed on the protective layer 3.
  • the material of the protective layer 3 can be taken up by a plastic head, and the material of the protective layer 3 can be transferred to the surface of the groove of the lower mold M1 to form a protective layer.
  • the functional element 2 can also be formed on the protective layer 3 in a similar manner.
  • the gel material 1' of the light-transmitting body 1 is injected into the groove of the lower mold M1, and the upper mold M2 is pressed onto the lower mold M1 so that the material of the light-transmitting body 1 is filled.
  • the shape of the accommodation space corresponds to the shape of the contact lens L.
  • a gel material 1 ′ based on silicone water glue is injected into the accommodating space, so that the protective layer 3 and the functional element 2 are made of a silicone water-based gel material 1 'covered.
  • the upper mold M2 and the lower mold M1 are photocured or heat-cured.
  • the light curing or heat curing can cure the material of the light-transmitting body 1 (the material mainly composed of silicone water-based glue) provided in the accommodating space formed by the upper mold M2 and the lower mold M1.
  • the curing process can be performed by UV light.
  • the upper mold M2 and the lower mold M1 are removed, and a contact lens L having a component protection function is obtained.
  • An advantageous effect of the present invention is that the contact lens L having the component protection function provided by the present invention can be separated from the outside by the "functional element 2 is covered by the light-transmitting body 1 and the protective layer 3" and the "protective layer” 3 includes a film-forming polymer, a hydrophilic polymer, and a solvent, and has an effect of supporting and protecting the functional element 2.
  • the protective layer 3 included in the contact lens L provided by the present invention has a specific composition, and the composition is not only the other materials in the contact lens L (for example, the water-repellent material of the light-transmitting body 1 or the silicon water). There is good compatibility between the rubber materials), and the characteristics caused by the composition can also make the transfer of materials between different implements efficiently in the process of manufacturing the contact lens L, thereby greatly improving the manufacturing efficiency.
  • the specific composition of the protective layer 3 can achieve the effect of supporting the functional element 2 (for example, a pattern layer or an electronic component), and can also effectively avoid the material of the functional element 2 having fluidity (for example, in a pattern layer).
  • the adhesive and the pigment molecules diffuse into the non-predetermined position due to the flow in the contact lens L, thereby preventing the contact lens L from losing the preset makeup effect or endangering the wearer's health.

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  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Ophthalmology & Optometry (AREA)
  • Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Eyeglasses (AREA)

Abstract

Disclosed is a contact lens with an element protection function, the contact lens comprising a light transmissive body (1), a functional element (2) and a protective layer (3). The functional element (2) is arranged on the light transmissive body (1), and the protective layer (3) is arranged on the light transmissive body (1) and covers the functional element (2). The functional element (2) is enclosed by the light transmitting body (1) and the protection layer (3) and is isolated from the outside, and the protective layer (3) comprises a film forming polymer, a hydrophilic polymer and a solvent. The contact lens can achieve the effect of supporting and protecting the functional element by means of the design of the protective layer with particular compositions, and the protective layer can well apply to a manufacturing process for the contact lens.

Description

具有元件保护功能的隐形眼镜Contact lens with component protection 技术领域Technical field
本发明涉及一种隐形眼镜，特别是涉及一种具有元件保护功能的隐形眼镜。The present invention relates to a contact lens, and more particularly to a contact lens having a component protection function.
背景技术Background technique
现有的隐形眼镜除了提供矫正视力、治疗眼科疾病以及妆饰等功能，还可以与电子元件结合而形成多功能性的隐形眼镜产品。具体来说，采用具有经过设计的折射特性的镜片可以有效矫正配戴者的视力(例如近视、远视、散光等)，而将医药品附加于镜片上可以治疗眼科疾病。为了达到美观的要求，则是可以将色料花纹设置于隐形眼镜镜片内，藉此改变瞳孔的颜色或是在瞳孔上显示文字或是图案。另外，现今也已发展出将隐形眼镜镜片与电子元件，例如电极、传感器或是发光元件等相互结合，而提供配戴者不同的视觉效果。换句话说，通过在隐形眼镜本体中加入色料或是电子元件等功能性元件，可以赋予隐形眼镜各种功能性。In addition to providing corrective vision, treating eye diseases, and makeup, existing contact lenses can also be combined with electronic components to form a versatile contact lens product. Specifically, the use of a lens having a designed refractive property can effectively correct the wearer's vision (eg, myopia, hyperopia, astigmatism, etc.), and attaching a pharmaceutical product to the lens can treat an ophthalmic disease. In order to achieve the aesthetic requirements, the color pattern can be placed in the contact lens to change the color of the pupil or display text or pattern on the pupil. In addition, it has now been developed to combine contact lens lenses with electronic components, such as electrodes, sensors or light-emitting elements, to provide different visual effects for the wearer. In other words, by incorporating a functional element such as a colorant or an electronic component into the contact lens body, various functionalities of the contact lens can be imparted.
然而，现有技术中，对于具有功能性的隐形眼镜产品而言，仍需要使用辅助的支撑物或是***物来作为功能性元件的载体，而针对这些载体的结构以及材料还具有改善空间。However, in the prior art, for a functional contact lens product, it is still necessary to use an auxiliary support or an insert as a carrier for the functional element, and there is room for improvement in the structure and material of these carriers.
发明内容Summary of the invention
本发明所要解决的技术问题在于，针对现有技术的不足提供一种具有元件保护功能的隐形眼镜，其包括具有特定组成的保护层，以提供功能性元件的支撑及保护，且有利于增进制造过程的效率。The technical problem to be solved by the present invention is to provide a contact lens having a component protection function, which comprises a protective layer having a specific composition, to provide support and protection of functional components, and to facilitate manufacturing, in view of the deficiencies of the prior art. The efficiency of the process.
为了解决上述的技术问题，本发明所采用的技术方案是，提供一种具有元件保护功能的隐形眼镜，其包括一透光本体、一功能性元件以及一保护层。所述功能性元件设置在所述透光本体上。所述保护层设置在所述透光本体上且覆盖所述功能性元件。所述功能性元件被所述透光本体与所述保护层所包覆而与外界隔离，且所述保护层包括一成膜性高分子、一亲水性高分子以及一溶剂。In order to solve the above technical problem, the technical solution adopted by the present invention is to provide a contact lens having a component protection function, which comprises a light transmitting body, a functional component and a protective layer. The functional element is disposed on the light transmissive body. The protective layer is disposed on the light transmissive body and covers the functional element. The functional element is covered by the transparent body and the protective layer to be isolated from the outside, and the protective layer comprises a film forming polymer, a hydrophilic polymer and a solvent.
更进一步地，所述透光本体的外表面上具有一内凹的凹陷空间，且所述保护层与所述功能性元件都被容置在所述凹陷空间内。 Further, the outer surface of the light transmissive body has a concave recessed space, and the protective layer and the functional element are both accommodated in the recessed space.
更进一步地，所述成膜性高分子是选自于由聚醚多元醇、聚醚、聚酯多元醇、聚丙烯酸及其衍生物、聚甲基丙烯酸甲酯及其衍生物、苯乙烯和丙烯酸的共聚物，以及其等的组合所组成的群组。Further, the film-forming polymer is selected from the group consisting of polyether polyols, polyethers, polyester polyols, polyacrylic acid and derivatives thereof, polymethyl methacrylate and its derivatives, styrene and A group of copolymers of acrylic acid, and combinations thereof.
更进一步地，基于所述保护层的总重，所述成膜性高分子的含量是介于1％至60％之间。Further, the content of the film-forming polymer is between 1% and 60% based on the total weight of the protective layer.
更进一步地，所述亲水性高分子是选自于由聚乙烯醇、纤维素及其衍生物、聚乙二醇、聚乙烯吡咯烷酮及其共聚物，以及其等的组合所组成的群组。Further, the hydrophilic polymer is selected from the group consisting of polyvinyl alcohol, cellulose and derivatives thereof, polyethylene glycol, polyvinylpyrrolidone and copolymers thereof, and combinations thereof. .
更进一步地，基于所述保护层的总重，所述亲水性高分子的含量是介于0.1％至45％之间。Further, the content of the hydrophilic polymer is between 0.1% and 45% based on the total weight of the protective layer.
更进一步地，所述溶剂是选自于由水、醇类、酰胺类以及其等的组合所组成的群组，且基于所述保护层的总重，所述溶剂的含量是介于30％至90％之间。Further, the solvent is selected from the group consisting of water, alcohols, amides, and the like, and the solvent content is between 30% based on the total weight of the protective layer. Between 90%.
更进一步地，基于所述保护层的总重，所述成膜性高分子的含量是介于15％至50％之间。Further, the content of the film-forming polymer is between 15% and 50% based on the total weight of the protective layer.
更进一步地，基于所述保护层的总重，所述亲水性高分子的含量是介于5％至40％之间。Further, the content of the hydrophilic polymer is between 5% and 40% based on the total weight of the protective layer.
更进一步地，所述功能性单元包括一图案层以及一电子元件两种中的至少一种。Further, the functional unit includes at least one of a pattern layer and an electronic component.
本发明的其中一有益效果在于，本发明所提供的具有元件保护功能的隐形眼镜，其能通过“所述功能性元件被所述透光本体与所述保护层所包覆而与外界隔离”以及“所述保护层包括一成膜性高分子、一亲水性高分子以及一溶剂”的技术方案，以对功能性元件发挥支撑及保护的效果。One of the beneficial effects of the present invention is that the contact lens having the component protection function provided by the present invention can be isolated from the outside by "the functional element is covered by the light-transmitting body and the protective layer" And the technical solution that the protective layer includes a film-forming polymer, a hydrophilic polymer, and a solvent, and has the effect of supporting and protecting the functional element.
为使能更进一步了解本发明的特征及技术内容，请参阅以下有关本发明的详细说明与附图，然而所提供的附图仅用于提供参考与说明，并非用来对本发明加以限制。For a better understanding of the features and technical aspects of the present invention, reference should be made to the accompanying drawings.
附图说明DRAWINGS
图1为本发明实施例所提供的具有元件保护功能的隐形眼镜的剖面示意图；1 is a schematic cross-sectional view of a contact lens having a component protection function according to an embodiment of the present invention;
图2为图1中II部分的放大示意图；Figure 2 is an enlarged schematic view of a portion II of Figure 1;
图3为本发明实施例所提供的具有元件保护功能的隐形眼镜的制造方法的第一步骤的示意图；3 is a schematic diagram of a first step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention;
图4为本发明实施例所提供的具有元件保护功能的隐形眼镜的制造方法的第二步骤的示意图； 4 is a schematic diagram of a second step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention;
图5为本发明实施例所提供的具有元件保护功能的隐形眼镜的制造方法的第三步骤的示意图；5 is a schematic diagram of a third step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention;
图6为本发明实施例所提供的具有元件保护功能的隐形眼镜的制造方法的第四步骤的示意图；以及6 is a schematic diagram of a fourth step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention;
图7为本发明实施例所提供的具有元件保护功能的隐形眼镜的制造方法的第五步骤的示意图。FIG. 7 is a schematic diagram of a fifth step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention.
具体实施方式Detailed ways
以下是通过特定的具体实施例来说明本发明所公开有关“具有元件保护功能的隐形眼镜”的实施方式，本领域技术人员可由本说明书所公开的内容了解本发明的优点与效果。本发明可通过其他不同的具体实施例加以施行或应用，本说明书中的各项细节也可基于不同观点与应用，在不悖离本发明的精神下进行各种修饰与变更。另外，本发明的附图仅为简单示意说明，并非依实际尺寸的描绘，事先声明。以下的实施方式将进一步详细说明本发明的相关技术内容，但所公开的内容并非用以限制本发明的保护范围。The following is a description of an embodiment of the present invention relating to a "contact lens having a component protection function" by a specific embodiment, and those skilled in the art can understand the advantages and effects of the present invention from the contents disclosed in the specification. The present invention may be carried out or applied in various other specific embodiments, and various modifications and changes can be made without departing from the spirit and scope of the invention. In addition, the drawings of the present invention are merely illustrative and are not intended to be stated in the actual size. The following embodiments will further explain the related technical content of the present invention, but the disclosure is not intended to limit the scope of the present invention.
请参阅图1及图2。图1为本发明实施例所提供的具有元件保护功能的隐形眼镜的剖面示意图，而图2为图1中II部分的放大示意图。Please refer to Figure 1 and Figure 2. 1 is a schematic cross-sectional view of a contact lens having a component protection function according to an embodiment of the present invention, and FIG. 2 is an enlarged schematic view of a portion II of FIG.
如图1所示，本发明所提供的具有元件保护功能的隐形眼镜L至少包括透光本体1、功能性元件2以及保护层3。功能性元件2以及保护层3都设置在透光本体1上。值得注意的是，在本发明中，「设置在…上」并不局限于设置于对象的正上方，也可以是指设置在对象的内部。换句话说，功能性元件2以及保护层3都设置在透光本体1内部。As shown in FIG. 1, the contact lens L having the component protection function provided by the present invention includes at least a light transmitting body 1, a functional element 2, and a protective layer 3. Both the functional element 2 and the protective layer 3 are disposed on the light-transmitting body 1. It is to be noted that, in the present invention, "provided on" is not limited to being disposed directly above the object, and may be disposed inside the object. In other words, both the functional element 2 and the protective layer 3 are disposed inside the light-transmitting body 1.
具体来说，透光本体1构成隐形眼镜L的主体，且可以由一般水胶材料(以甲基丙烯酸羟乙酯为主的水胶材料)或是硅水胶材料所形成。硅水胶材料又可以称为聚硅氧水凝胶。透光本体1可以具有半渗透性的性质，且可以含有水胶材料或是硅水胶材料之外的其他添加剂。透光本体1的材料在本发明中并不加以限制。Specifically, the light-transmitting body 1 constitutes a main body of the contact lens L, and may be formed of a general water-repellent material (a water-based material mainly composed of hydroxyethyl methacrylate) or a silicone water-repellent material. The silicone hydrocolloid material can also be referred to as a silicone hydrogel. The light transmitting body 1 may have semi-permeable properties and may contain a water gel material or other additives other than the silicone water gel material. The material of the light transmitting body 1 is not limited in the present invention.
除此之外，透光本体1具有外表面11以及相对于外表面11的内表面12。举例而言，透光本体1的内表面12是在隐形眼镜L由使用者所配戴时接触使用者眼球的表面，而透光本体1的外表面则是朝向使用者眼球的外侧的表面。In addition to this, the light-transmissive body 1 has an outer surface 11 and an inner surface 12 with respect to the outer surface 11. For example, the inner surface 12 of the light-transmitting body 1 is a surface that contacts the eyeball of the user when the contact lens L is worn by the user, and the outer surface of the light-transmitting body 1 is a surface that faces the outer side of the user's eyeball.
在本发明所提供的具有元件保护功能的隐形眼镜L中，透光本体1的外表面11上具有一内凹的凹陷空间，且保护层3与功能性元件2都被容置在凹陷空间内。In the contact lens L with component protection function provided by the present invention, the outer surface 11 of the light-transmitting body 1 has a concave recessed space, and the protective layer 3 and the functional element 2 are accommodated in the recessed space. .
接下来，功能性元件2设置在透光本体1内。功能性元件2包括图案层或是电子元件 的至少一种。举例而言，功能性元件2可以是用以改变配戴者的虹膜颜色的图案层。图案层可以设置于透光本体1部对应于覆盖配戴者的瞳孔及虹膜的部分。换句话说，当功能性元件2是图案层时，功能性元件2可以环绕式地设置在隐形眼镜内。如此一来，图案层可以覆盖配戴者的瞳孔以及虹膜，以完全或部分遮蔽配戴者的瞳孔以及虹膜的自然颜色，藉此赋予隐形眼镜L妆饰效果。Next, the functional element 2 is disposed inside the light-transmitting body 1. The functional component 2 includes a pattern layer or an electronic component At least one of them. For example, the functional element 2 can be a pattern layer to change the iris color of the wearer. The pattern layer may be disposed on a portion of the light-transmitting body 1 corresponding to the pupil and the iris covering the wearer. In other words, when the functional element 2 is a patterned layer, the functional element 2 can be circumferentially disposed within the contact lens. In this way, the patterned layer can cover the wearer's pupil and the iris to completely or partially obscure the wearer's pupil and the natural color of the iris, thereby imparting a contact lens L finish effect.
在本发明的另一个实施例中，功能性元件2是电子元件。电子元件可以是电极、讯号收发器、发光元件或是传感器等。在本发明中，电子元件的种类并不加以限制。举例而言，电子元件是一种包括发射器以及接收器的距离传感器，可以用于测量配戴者的眼睛至观察到的对象之间的距离。In another embodiment of the invention, the functional element 2 is an electronic component. The electronic component can be an electrode, a signal transceiver, a light emitting component, or a sensor. In the present invention, the kind of the electronic component is not limited. For example, an electronic component is a distance sensor that includes a transmitter and a receiver that can be used to measure the distance between the wearer's eye and the observed object.
本发明所提供的具有元件保护功能的隐形眼镜L还包括保护层3。保护层3可以具有介于2μm以及30μm之间的厚度。如前所述，如同功能性元件2，保护层3也是设置于透光本体1的内部。在本发明中，保护层3可以覆盖功能性元件2。具体来说，当功能性元件2为图案层，而图案层是环绕式地设置在隐形眼镜L的透光本体1内，覆盖功能性元件2的保护层3可以同样地环绕式地设置在透光本体1内。须注意的是，在本发明的一个实施例中，保护层3的宽度是大于功能性元件2(图案层)的宽度，以确保对功能性元件2的保护效果。The contact lens L having the component protection function provided by the present invention further includes a protective layer 3. The protective layer 3 may have a thickness of between 2 μm and 30 μm. As described above, like the functional element 2, the protective layer 3 is also disposed inside the light-transmitting body 1. In the present invention, the protective layer 3 can cover the functional element 2. Specifically, when the functional element 2 is a pattern layer, and the pattern layer is circumferentially disposed in the light-transmitting body 1 of the contact lens L, the protective layer 3 covering the functional element 2 can be similarly disposed in a wraparound manner. Inside the light body 1. It should be noted that in one embodiment of the invention, the width of the protective layer 3 is greater than the width of the functional element 2 (pattern layer) to ensure a protective effect on the functional element 2.
于本发明的其中一个实施例中，功能性元件2被固定或是连接于保护层3，使得功能性元件2由保护层3所支撑。举例而言，功能性元件2是包括胶体形式的黏结剂以及色料，色料分散于黏结剂中，且黏结剂的分子与保护层3的分子之间通过凡得瓦力或是键结而使得功能性元件2固定于保护层3上。In one of the embodiments of the invention, the functional element 2 is fixed or attached to the protective layer 3 such that the functional element 2 is supported by the protective layer 3. For example, the functional element 2 is composed of a binder in the form of a colloid and a colorant, and the colorant is dispersed in the binder, and the molecules of the binder and the molecules of the protective layer 3 pass through the vanguard or the bond. The functional element 2 is fixed to the protective layer 3.
功能性元件2以及保护层3是设置在透光本体1中较接近外表面11的位置。换句话说，在隐形眼镜L由使用者所配戴时，功能性元件2以及保护层3是位于透光本体1中接近外侧的位置。另外，在本发明的实施例中，功能性元件2是设置在外表面1与保护层3之间。如此一来，当功能性元件2是包括色料的图案层时，保护层3可以避免功能性元件2的色料(或是油墨)分子向隐形眼镜L的外侧扩散而与外界环境接触。The functional element 2 and the protective layer 3 are disposed closer to the outer surface 11 in the light-transmitting body 1. In other words, when the contact lens L is worn by the user, the functional element 2 and the protective layer 3 are located near the outer side of the light-transmitting body 1. Further, in the embodiment of the invention, the functional element 2 is disposed between the outer surface 1 and the protective layer 3. In this way, when the functional element 2 is a pattern layer including a color material, the protective layer 3 can prevent the color material (or ink) molecules of the functional element 2 from diffusing to the outside of the contact lens L to be in contact with the external environment.
换句话说，当功能性元件2是图案层时，保护层3不但可以对功能性元件2提供支撑，还可以预防由功能性元件2中的材料分子(例如色料或是油墨)向外扩散所导致的问题。举例而言，若材料分子向外扩散，原先图案层所显示的图案或是色彩有可能受到影响而无法发挥预定的妆饰效果，且扩散至隐形眼镜L的透光本体1外的材料分子可能与配戴者的眼球接触而影响眼球的健康。 In other words, when the functional element 2 is a patterned layer, the protective layer 3 can not only provide support for the functional element 2, but also prevent the material molecules (such as colorants or inks) in the functional element 2 from spreading outward. The problem caused. For example, if the material molecules are outwardly diffused, the pattern or color displayed by the original pattern layer may be affected and the predetermined cosmetic effect may not be exerted, and the material molecules diffused to the outside of the light-transmitting body 1 of the contact lens L may be The eye contact of the wearer affects the health of the eyeball.
为了使保护层3在提供功能性元件2支撑的同时可以与透光本体1以及功能性元件2有良好的兼容性，保护层3的组成以及其等之间的比例必须经过适当选择。除此之外，由于在隐形眼镜L的制造过程中需要采用不同的载体对隐形眼镜L的不同材料进行转移，保护层3同样需要配合制造过程中的机具或是模具而选用，使得保护层3可以顺利地形成于隐形眼镜L的透光本体1内部。In order for the protective layer 3 to have good compatibility with the light-transmitting body 1 and the functional element 2 while supporting the functional element 2, the composition of the protective layer 3 and the ratio between the same must be appropriately selected. In addition, since different materials are needed to transfer the different materials of the contact lens L during the manufacturing process of the contact lens L, the protective layer 3 also needs to be selected in accordance with the implement or the mold in the manufacturing process, so that the protective layer 3 is selected. It can be smoothly formed inside the light-transmitting body 1 of the contact lens L.
具体来说，保护层3必须具有适当的黏度以及亲合力，而保护层3的黏度以及亲和力是通过选用适当含量比例的不同组分而控制。举例而言，当保护层3具有所欲的黏度时，可以避免保护层的材料在机具之间互相转移时滑落或是无法顺利附着。Specifically, the protective layer 3 must have an appropriate viscosity and affinity, and the viscosity and affinity of the protective layer 3 are controlled by selecting different components in appropriate proportions. For example, when the protective layer 3 has a desired viscosity, it is possible to prevent the material of the protective layer from slipping or failing to adhere smoothly when transferring between the implements.
在本发明的实施例中，保护层3包括成膜性高分子、亲水性高分子以及溶剂。成膜性高分子是选自于由聚醚多元醇(polyether polyol)、聚醚(polyether)、聚酯多元醇(polyester polyols)、聚丙烯酸及其衍生物、聚甲基丙烯酸甲酯(polymethylmethacrylate)及其衍生物、苯乙烯和丙烯酸的共聚物(styrene-acrylic acid copolymer)，以及其等的组合所组成的群组。In the embodiment of the present invention, the protective layer 3 includes a film-forming polymer, a hydrophilic polymer, and a solvent. The film-forming polymer is selected from the group consisting of polyether polyols, polyethers, polyester polyols, polyacrylic acid and derivatives thereof, and polymethylmethacrylate. And a group of its derivatives, styrene-acrylic acid copolymer, and combinations thereof.
举例而言，聚醚多元醇可以具有介于5000及50万之间的分子量，其可以是聚乙二醇(polyethylene glycol)、聚丙二醇(polypropylene glycol)、甘油、已内酯(caprolactone)或是其等的任意组合。聚醚可以具有介于5000及50万之间的分子量，其可以是环氧乙烷、环氧丙烷、甘油或是其等的任意组合。聚酯多元醇可以是乙二酸、丙二酸、甘油或是其等的任意组合。聚丙烯酸可以具有介于5000及150万之间的分子量。聚丙烯酸衍生物可以是聚丙烯酸盐例如丙烯酸的钾盐以及钠盐。聚甲基丙烯酸甲酯可以具有介于5000及50万之间的分子量。苯乙烯和丙烯酸的共聚物可以是由10-90％的苯乙烯单体与90-10％的丙烯酸所形成。For example, the polyether polyol may have a molecular weight of between 5,000 and 500,000, which may be polyethylene glycol, polypropylene glycol, glycerin, caprolactone or Any combination of these. The polyether may have a molecular weight of between 5,000 and 500,000, which may be ethylene oxide, propylene oxide, glycerin or any combination thereof. The polyester polyol may be oxalic acid, malonic acid, glycerin or any combination thereof. Polyacrylic acid can have a molecular weight between 5,000 and 1.5 million. The polyacrylic acid derivative may be a potassium salt of a polyacrylate such as acrylic acid and a sodium salt. Polymethyl methacrylate can have a molecular weight between 5,000 and 500,000. The copolymer of styrene and acrylic acid may be formed from 10-90% styrene monomer and 90-10% acrylic acid.
承上述，基于保护层3的总重，成膜性高分子的含量为介于1至60％之间。具体来说，若成膜性高分子的含量小于1％，保护层3的黏度特性会受到不利的影响而无法固定于透光本体1中的特定位置，而若成膜性高分子的含量大于60％，则保护层3的黏度过高而不利于隐形眼镜L的制造过程。在本发明一个实施例中，基于保护层3的总重，成膜性高分子的含量是介于15-50％之间。In view of the above, the content of the film-forming polymer is between 1 and 60% based on the total weight of the protective layer 3. Specifically, if the content of the film-forming polymer is less than 1%, the viscosity characteristic of the protective layer 3 is adversely affected and cannot be fixed to a specific position in the light-transmitting body 1, and if the content of the film-forming polymer is larger than 60%, the viscosity of the protective layer 3 is too high to facilitate the manufacturing process of the contact lens L. In one embodiment of the present invention, the content of the film-forming polymer is between 15 and 50% based on the total weight of the protective layer 3.
接下来，亲水性高分子是选自于由聚乙烯醇(polyvinyl alcohol)、纤维素及其衍生物(cellulose and its derivatives)、聚乙二醇(polyethylene alcohol)、聚乙烯吡咯烷酮及其共聚物(polyvinylpyrrolidone and its copolymer)，以及其等的组合所组成的群组。举例而言，聚乙烯醇可为聚合度介于500及10000之间的聚合物。纤维素可以具有介于5000及 50万之间的分子量。聚乙二醇可以具有介于500及50万之间的分子量。聚乙烯吡咯烷酮可以具有介于5000及150万之间的分子量。Next, the hydrophilic polymer is selected from the group consisting of polyvinyl alcohol, cellulose and its derivatives, polyethylene alcohol, polyvinyl pyrrolidone and copolymers thereof. (polyvinylpyrrolidone and its copolymer), and a group of combinations thereof. For example, polyvinyl alcohol can be a polymer having a degree of polymerization between 500 and 10,000. Cellulose can have between 5000 and Molecular weight between 500,000. Polyethylene glycol can have a molecular weight between 500 and 500,000. The polyvinylpyrrolidone may have a molecular weight of between 5,000 and 1,500,000.
承上述，基于保护层3的总重，亲水性高分子的含量为介于0.1至45％之间。在本发明一个实施例中，基于保护层3的总重，亲水性高分子的含量为介于5至40％之间。具体来说，若亲水性高分子的含量小于1％，保护层3的黏度特性会受到不利的影响而无法固定于透光本体1中的特定位置，而若亲水性高分子的含量大于45％，则保护层3的黏度过高而不利于隐形眼镜L的制造过程。除此之外，亲水性高分子的含量也会影响隐形眼镜L配戴时的舒适度。In view of the above, the content of the hydrophilic polymer is between 0.1 and 45% based on the total weight of the protective layer 3. In one embodiment of the invention, the hydrophilic polymer is present in an amount between 5 and 40% based on the total weight of the protective layer 3. Specifically, if the content of the hydrophilic polymer is less than 1%, the viscosity characteristic of the protective layer 3 is adversely affected and cannot be fixed to a specific position in the light-transmitting body 1, and if the content of the hydrophilic polymer is larger than 45%, the viscosity of the protective layer 3 is too high to facilitate the manufacturing process of the contact lens L. In addition, the content of the hydrophilic polymer also affects the comfort of the contact lens L when worn.
在本发明实施例的隐形眼镜L的保护层3中，溶剂是选自于水、醇类、酰胺类以及其等的组合的群组。举例而言，溶剂可以是乙醇、丙醇、N-甲基吡咯烷酮、二甲基乙酰胺以及二甲基甲酰胺等。基于保护层3的总重，溶剂的含量为介于30至90％之间。In the protective layer 3 of the contact lens L of the embodiment of the present invention, the solvent is a group selected from the group consisting of water, alcohols, amides, and the like. For example, the solvent may be ethanol, propanol, N-methylpyrrolidone, dimethylacetamide, dimethylformamide or the like. The solvent content is between 30 and 90% based on the total weight of the protective layer 3.
针对保护层3的成份组成及其相关比例，下表1列出采用具有不同含量的不同的成膜性高分子、亲水性高分子以及溶剂来形成保护层3的实例。对于不同的实施例以及比较例进行评估而得的评估结果也列于表中。针对评估结果，◎代表成膜/相转移的成效佳，△代表成膜/相转移的成效尚可，而╳代表成膜/相转移的成效不佳。由表1中可以看出，使用本发明所提供的具有特定成份组成及其相关比例的保护层3，可以获得可接受的成膜/相转移效果。With respect to the composition of the protective layer 3 and its related proportions, Table 1 below shows an example in which the protective layer 3 is formed using different film-forming polymers, hydrophilic polymers, and solvents having different contents. The evaluation results obtained by evaluating different examples and comparative examples are also listed in the table. For the evaluation results, ◎ represents good results in film formation/phase transfer, △ represents the effect of film formation/phase transfer, and ╳ represents poor film formation/phase transfer. As can be seen from Table 1, an acceptable film formation/phase transfer effect can be obtained by using the protective layer 3 provided by the present invention having a specific composition and its related ratio.
具体来说，比较例1中溶剂的含量少于30％，比较例2成膜性高分子的含量大于60％，而比较例3的亲水性高分子的含量大于45％，如此一来，比较例1至3都无法获得好的成膜/相转移效果。 Specifically, the content of the solvent in Comparative Example 1 was less than 30%, the content of the film-forming polymer of Comparative Example 2 was more than 60%, and the content of the hydrophilic polymer of Comparative Example 3 was more than 45%, and thus, Comparative Examples 1 to 3 failed to obtain a good film formation/phase transfer effect.
表1Table 1
Figure PCTCN2017099651-appb-000001
Figure PCTCN2017099651-appb-000001
接下来，请参阅图3至图7。图3至图7分别为本发明实施例所提供的具有元件保护功能的隐形眼镜的制造方法的第一步骤、第二步骤、第三步骤、第四步骤以及第五步骤的示意图。具体来说，本发明所提供的具有元件保护功能的隐形眼镜L需要至少使用一组包括下模具M1以及上模具M2的成型模具来制造。Next, please refer to Figures 3 to 7. FIG. 3 to FIG. 7 are schematic diagrams showing a first step, a second step, a third step, a fourth step, and a fifth step of a method for manufacturing a contact lens having a component protection function according to an embodiment of the present invention. Specifically, the contact lens L having the component protection function provided by the present invention needs to be manufactured using at least one set of molding dies including the lower mold M1 and the upper mold M2.
请先参阅图3。如图3所示，在第一步骤中，提供下模具M1。下模具可以由金属或是非金属材料所制造。举例而言，下模具M1可以由钢板塑型而成而具有内凹的表面，内凹的表面环绕形成用以容置材料的凹槽。下模具M1是用以承载用于形成隐形眼镜L的材料。Please refer to Figure 3 first. As shown in FIG. 3, in the first step, the lower mold M1 is provided. The lower mold can be made of a metal or a non-metal material. For example, the lower mold M1 may be molded from a steel sheet to have a concave surface, and the concave surface surrounds a groove for receiving a material. The lower mold M1 is for carrying a material for forming the contact lens L.
接下来，请参阅图4。在第二步骤中，于下模具M1上设置保护层3以及功能性元件2。在图3至图6所显示的实施例中，功能性元件2包括色料的图案层。如图4所示，保护层3以及图案层可以通过移印的方式设置于下模具M1中。具体来说，保护层3可以先被设置于下模具M1的内表面，而功能性元件2被直接设置于保护层3上。举例而言，可以通过胶头沾取保护层3的材料，再将保护层3的材料转移至下模具M1的凹槽的表面而形成保护层。功能性元件2也可以通过类似的方式形成于保护层3上。Next, please refer to Figure 4. In the second step, the protective layer 3 and the functional element 2 are provided on the lower mold M1. In the embodiment shown in Figures 3 to 6, the functional element 2 comprises a patterned layer of colorant. As shown in FIG. 4, the protective layer 3 and the pattern layer can be disposed in the lower mold M1 by pad printing. Specifically, the protective layer 3 may be first disposed on the inner surface of the lower mold M1, and the functional element 2 is directly disposed on the protective layer 3. For example, the material of the protective layer 3 can be taken up by a plastic head, and the material of the protective layer 3 can be transferred to the surface of the groove of the lower mold M1 to form a protective layer. The functional element 2 can also be formed on the protective layer 3 in a similar manner.
请参阅图5。在图5所示的第三步骤中，在下模具M1的凹槽中注入透光本体1的凝胶材料1’，再将上模具M2压合在下模具M1上，使得透光本体1的材料填充于下模具M1与上模具M2之间的容置空间中。容置空间的形状对应于隐形眼镜L的形状。举例而言，在第三步骤中，在容置空间中注入以硅水胶为主的凝胶材料1’，使得保护层3与功能性元件2被以硅水胶为主的凝胶材料1’所包覆。Please refer to Figure 5. In the third step shown in FIG. 5, the gel material 1' of the light-transmitting body 1 is injected into the groove of the lower mold M1, and the upper mold M2 is pressed onto the lower mold M1 so that the material of the light-transmitting body 1 is filled. In the accommodating space between the lower mold M1 and the upper mold M2. The shape of the accommodation space corresponds to the shape of the contact lens L. For example, in the third step, a gel material 1 ′ based on silicone water glue is injected into the accommodating space, so that the protective layer 3 and the functional element 2 are made of a silicone water-based gel material 1 'covered.
如图6所示，接下来，在第四步骤中，对上模具M2以及下模具M1进行光固化或是加热固化。光固化或是加热固化可以使得设置于由上模具M2与下模具M1所形成的容置空间中的透光本体1的材料(以硅水胶为主的材料)固化成型。举例而言，可以通过紫外光(UV light)进行固化程序。最后，如图7所示，在第五步骤中，移除上模具M2以及下模具M1，而获得具有元件保护功能的隐形眼镜L。As shown in FIG. 6, next, in the fourth step, the upper mold M2 and the lower mold M1 are photocured or heat-cured. The light curing or heat curing can cure the material of the light-transmitting body 1 (the material mainly composed of silicone water-based glue) provided in the accommodating space formed by the upper mold M2 and the lower mold M1. For example, the curing process can be performed by UV light. Finally, as shown in FIG. 7, in the fifth step, the upper mold M2 and the lower mold M1 are removed, and a contact lens L having a component protection function is obtained.
实施例的有益效果Advantages of the embodiment
本发明的有益效果在于，本发明所提供的具有元件保护功能的隐形眼镜L，其能通过“功能性元件2被透光本体1与保护层3所包覆而与外界隔离”以及“保护层3包括成膜性高分子、亲水性高分子以及溶剂”的技术方案，以对功能性元件2发挥支撑及保护的效果。 An advantageous effect of the present invention is that the contact lens L having the component protection function provided by the present invention can be separated from the outside by the "functional element 2 is covered by the light-transmitting body 1 and the protective layer 3" and the "protective layer" 3 includes a film-forming polymer, a hydrophilic polymer, and a solvent, and has an effect of supporting and protecting the functional element 2.
具体来说，本发明所提供的隐形眼镜L中所包括的保护层3具有特定的组成，且此组成不但与隐形眼镜L中其他的材料(例如透光本体1的水胶材料或是硅水胶材料)之间有良好的兼容性，其组成所导致的特性也可以使得在制造隐形眼镜L的过程中可以有效率地进行材料在不同机具之间的转移，藉此大幅改良制造效率。Specifically, the protective layer 3 included in the contact lens L provided by the present invention has a specific composition, and the composition is not only the other materials in the contact lens L (for example, the water-repellent material of the light-transmitting body 1 or the silicon water). There is good compatibility between the rubber materials), and the characteristics caused by the composition can also make the transfer of materials between different implements efficiently in the process of manufacturing the contact lens L, thereby greatly improving the manufacturing efficiency.
除此之外，保护层3的特定组成除了可以达到支撑功能性元件2(例如图案层或是电子元件)的效果，还可以有效避免具有流动性的功能性元件2的材料(例如图案层中的黏结剂以及颜料分子)在隐形眼镜L中因流动而扩散至非预先设定的位置上，进而预防隐形眼镜L丧失所预先设定的妆饰效果或者危害配戴者的健康。In addition to this, the specific composition of the protective layer 3 can achieve the effect of supporting the functional element 2 (for example, a pattern layer or an electronic component), and can also effectively avoid the material of the functional element 2 having fluidity (for example, in a pattern layer). The adhesive and the pigment molecules diffuse into the non-predetermined position due to the flow in the contact lens L, thereby preventing the contact lens L from losing the preset makeup effect or endangering the wearer's health.
以上所公开的内容仅为本发明的优选可行实施例，并非因此局限本发明的权利要求书的保护范围，所以凡是运用本发明说明书及附图内容所做的等效技术变化，均包含于本发明的权利要求书的保护范围内。 The above disclosure is only a preferred embodiment of the present invention, and is not intended to limit the scope of the claims of the present invention. Within the scope of the claims of the invention.

Claims (10)

  1. 一种具有元件保护功能的隐形眼镜，其特征在于，所述具有元件保护功能的隐形眼镜包括：A contact lens having a component protection function, wherein the contact lens having a component protection function comprises:
    一透光本体；a light transmitting body;
    一功能性元件，所述功能性元件设置在所述透光本体上；以及a functional element disposed on the light transmissive body;
    一保护层，所述保护层设置在所述透光本体上且覆盖所述功能性元件；a protective layer disposed on the light transmissive body and covering the functional element;
    其中，所述功能性元件被所述透光本体与所述保护层所包覆而与外界隔离，且所述保护层包括一成膜性高分子、一亲水性高分子以及一溶剂。Wherein, the functional element is covered by the transparent body and the protective layer to be isolated from the outside, and the protective layer comprises a film forming polymer, a hydrophilic polymer and a solvent.
  2. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，所述透光本体的外表面上具有一内凹的凹陷空间，且所述保护层与所述功能性元件都被容置在所述凹陷空间内。The contact lens with component protection function according to claim 1, wherein the outer surface of the light transmissive body has a concave recessed space, and the protective layer and the functional component are accommodated. Placed in the recessed space.
  3. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，所述成膜性高分子是选自于由聚醚多元醇、聚醚、聚酯多元醇、聚丙烯酸及其衍生物、聚甲基丙烯酸甲酯及其衍生物、苯乙烯和丙烯酸的共聚物，以及其等的组合所组成的群组。The contact lens with element protection function according to claim 1, wherein the film-forming polymer is selected from the group consisting of polyether polyols, polyethers, polyester polyols, polyacrylic acids, and derivatives thereof. , a group of polymethyl methacrylate and its derivatives, a copolymer of styrene and acrylic acid, and combinations thereof.
  4. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，基于所述保护层的总重，所述成膜性高分子的含量是介于1％至60％之间。The contact lens having a component protection function according to claim 1, wherein the content of the film-forming polymer is between 1% and 60% based on the total weight of the protective layer.
  5. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，所述亲水性高分子是选自于由聚乙烯醇、纤维素及其衍生物、聚乙二醇、聚乙烯吡咯烷酮及其共聚物，以及其等的组合所组成的群组。The contact lens with element protection function according to claim 1, wherein the hydrophilic polymer is selected from the group consisting of polyvinyl alcohol, cellulose and derivatives thereof, polyethylene glycol, and polyvinylpyrrolidone. And a group of copolymers thereof, and combinations thereof, and the like.
  6. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，基于所述保护层的总重，所述亲水性高分子的含量是介于0.1％至45％之间。The contact lens with element protection function according to claim 1, wherein the content of the hydrophilic polymer is between 0.1% and 45% based on the total weight of the protective layer.
  7. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，所述溶剂是选自于由水、醇类、酰胺类以及其等的组合所组成的群组，且基于所述保护层的总重，所述溶剂的含量是介于30％至90％之间。The contact lens with element protection function according to claim 1, wherein the solvent is selected from the group consisting of water, alcohols, amides, and the like, and is based on the protection. The total weight of the layer, the solvent content being between 30% and 90%.
  8. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，基于所述保护层的总重，所述成膜性高分子的含量是介于15％至50％之间。The contact lens having a component protection function according to claim 1, wherein the content of the film-forming polymer is between 15% and 50% based on the total weight of the protective layer.
  9. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，基于所述保护层的总重，所述亲水性高分子的含量是介于5％至40％之间。The contact lens having a component protection function according to claim 1, wherein the content of the hydrophilic polymer is between 5% and 40% based on the total weight of the protective layer.
  10. 根据权利要求1所述的具有元件保护功能的隐形眼镜，其特征在于，所述功能性单元包括一图案层以及一电子元件两种中的至少一种。 The contact lens with component protection function according to claim 1, wherein the functional unit comprises at least one of a pattern layer and an electronic component.
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