KR101820696B1 - Coating Solution for Color Contact Lens and Manufacturing Method Thereof - Google Patents
Coating Solution for Color Contact Lens and Manufacturing Method Thereof Download PDFInfo
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- KR101820696B1 KR101820696B1 KR1020170032945A KR20170032945A KR101820696B1 KR 101820696 B1 KR101820696 B1 KR 101820696B1 KR 1020170032945 A KR1020170032945 A KR 1020170032945A KR 20170032945 A KR20170032945 A KR 20170032945A KR 101820696 B1 KR101820696 B1 KR 101820696B1
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- 239000011248 coating agent Substances 0.000 title claims abstract description 25
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- IAYPIBMASNFSPL-UHFFFAOYSA-N Ethylene oxide Chemical compound C1CO1 IAYPIBMASNFSPL-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007788 liquid Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims description 13
- 239000002904 solvent Substances 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 6
- 229920002803 thermoplastic polyurethane Polymers 0.000 claims description 6
- 238000007649 pad printing Methods 0.000 claims description 5
- 238000010438 heat treatment Methods 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 2
- 239000010410 layer Substances 0.000 abstract description 20
- 238000007639 printing Methods 0.000 abstract description 8
- 239000011247 coating layer Substances 0.000 abstract description 7
- 230000000694 effects Effects 0.000 abstract description 7
- 210000004087 cornea Anatomy 0.000 abstract description 6
- 210000000744 eyelid Anatomy 0.000 abstract description 5
- 239000011241 protective layer Substances 0.000 abstract description 5
- 206010061218 Inflammation Diseases 0.000 abstract description 4
- 238000002845 discoloration Methods 0.000 abstract description 4
- 230000004054 inflammatory process Effects 0.000 abstract description 4
- 239000000463 material Substances 0.000 abstract description 3
- 239000003973 paint Substances 0.000 abstract description 2
- 239000000976 ink Substances 0.000 description 12
- 239000000178 monomer Substances 0.000 description 7
- 150000001732 carboxylic acid derivatives Chemical class 0.000 description 5
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 4
- 239000000049 pigment Substances 0.000 description 4
- 239000002344 surface layer Substances 0.000 description 3
- LZCLXQDLBQLTDK-UHFFFAOYSA-N ethyl 2-hydroxypropanoate Chemical compound CCOC(=O)C(C)O LZCLXQDLBQLTDK-UHFFFAOYSA-N 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- MOEFFSWKSMRFRQ-UHFFFAOYSA-N 2-ethoxyphenol Chemical compound CCOC1=CC=CC=C1O MOEFFSWKSMRFRQ-UHFFFAOYSA-N 0.000 description 1
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 206010011033 Corneal oedema Diseases 0.000 description 1
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 125000003277 amino group Chemical group 0.000 description 1
- 150000003863 ammonium salts Chemical class 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000002826 coolant Substances 0.000 description 1
- 201000004778 corneal edema Diseases 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229940116333 ethyl lactate Drugs 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
- IEQIEDJGQAUEQZ-UHFFFAOYSA-N phthalocyanine Chemical compound N1C(N=C2C3=CC=CC=C3C(N=C3C4=CC=CC=C4C(=N4)N3)=N2)=C(C=CC=C2)C2=C1N=C1C2=CC=CC=C2C4=N1 IEQIEDJGQAUEQZ-UHFFFAOYSA-N 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/80—Processes for incorporating ingredients
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D4/00—Coating compositions, e.g. paints, varnishes or lacquers, based on organic non-macromolecular compounds having at least one polymerisable carbon-to-carbon unsaturated bond ; Coating compositions, based on monomers of macromolecular compounds of groups C09D183/00 - C09D183/16
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- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Eyeglasses (AREA)
Abstract
본 발명은 콘택트렌즈의 인쇄 층 위에 코팅되어 인쇄 도료의 색감을 유지하고 컬러 콘택트렌즈의 투명성을 확보하는 컬러 콘택트렌즈 코팅액 및 이의 제조방법에 관한 것으로 보다 상세하게는 에틸렌옥사이드(Ethylene oxide)가 포함된 올리고머를 생성하는 단계와 에틸렌옥사이드가 포함된 올리고머를 사용하여 탑코팅용 물질을 생성하는 단계로 구성되며 컬러 콘택트렌즈의 잉크층의 디자인 원본의 색상 및 색감을 그대로 유지할 수 있고 잉크층과 코팅층 및 각막 보호층 사이의 밀착도를 높여 색소 내포성이 확보되어 사용자의 눈꺼풀 안쪽이 잉크층과 직접 접촉하여 발생하는 염증이나 변색 등의 부작용을 방지하는 효과가 있다.The present invention relates to a color contact lens coating liquid coated on a printing layer of a contact lens to maintain the color tone of a printing paint and to ensure transparency of the color contact lens and a method of manufacturing the same, and more particularly to a color contact lens coating liquid containing ethylene oxide An oligomer, and an oligomer containing ethylene oxide to produce a top coating material. The color and color of the original design of the ink layer of the color contact lens can be maintained, and the ink layer, the coating layer, and the cornea The degree of adhesion between the protective layers is increased to ensure dyeability, and side effects such as inflammation and discoloration caused by direct contact of the inside of the eyelid with the ink layer are prevented.
Description
본 발명은 컬러 콘택트렌즈 코팅액 및 이의 제조방법에 관한 것으로 보다 상세하게는 콘택트렌즈의 인쇄 층 위에 코팅되어 인쇄 도료의 색감을 유지하고 컬러 콘택트렌즈의 투명성을 확보하는 컬러 콘택트렌즈 코팅액 및 이의 제조방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color contact lens coating liquid and a method of manufacturing the same, and more particularly to a color contact lens coating liquid which is coated on a printing layer of a contact lens to maintain the color of a printing paint and ensure transparency of the color contact lens. .
일반적으로, 컬러 콘택트렌즈는 렌즈 표면에 색깔을 넣은 미용용 콘택트렌즈로서 테두리 부분에 주로 검은 색깔을 넣어 눈동자가 크게 보이도록 하는 서클렌즈와 홍채 변형 또는 손상으로 인하여 미관상 보완을 위한 홍채 렌즈 등과 같이 다양한 종류의 콘택트렌즈가 널리 활용되고 있다. 이러한 컬러 콘택트렌즈는 일반적인 콘택트렌즈에 다양한 색깔의 잉크로 패턴을 인쇄하여 제조되는데 사용자가 이를 착용할 경우 일반적인 콘택트렌즈에 비하여 착색된 안료에 의하여 산소, 눈물, 분비물 등의 차단을 더욱 심화시킴으로 충혈, 각막 부종 등의 다양한 부작용이 발생하는 문제점이 있다.In general, a color contact lens is a cosmetic contact lens in which a color is put on the surface of a lens. The contact lens includes a circle lens that largely looks black by putting a black color on the rim, and an iris lens Type contact lenses are widely used. Such a color contact lens is manufactured by printing a pattern with various color inks on a general contact lens. When the user wears the contact lens, the pigment is more intensified by colored pigments than general contact lenses, Corneal edema, and the like.
특히, 안료가 인쇄된 면에 접촉하는 각막이나 눈꺼풀 안쪽에 안료에 의한 염증이나 변색 등의 부작용이 발생하기도 한다.Particularly, side effects such as inflammation or discoloration due to pigment may occur inside the cornea or eyelid contacting the printed surface of the pigment.
이를 해결하기 위하여 대한민국 등록특허공보 제10-1217833호에서는 본 명세서 도 1에 도시되어 있는 바와 같이 몰드 상에 원료를 노즐 분사하여 얇은 두께로 형성하고 착용 시 안구에 직접 접촉하는 각막 보호층과 상기 각막 보호층의 상측에 도포하고 다양한 색상을 이루며 홍채 형상으로 형성되는 인쇄 층과 상기 인쇄 층의 상측에 위치하여 표면이 매끈한 외면을 이루도록 형성되는 렌즈 표면층으로 구성되는 노즐분사방식 또는 패드 코팅으로 샌드위치 패드 프린팅에 의한 컬러 콘택트렌즈 및 그 제조방법이 개시되어 있다. 그러나, 상기와 같은 컬러 콘택트렌즈는 인쇄 층 위에 코팅되는 렌즈 표면층에 의하여 인쇄 층이 없을 때와 비교하여 인쇄 색상 및 색감이 차이가 나며, 렌즈의 투명도도 저하되는 문제점이 있다.In order to solve this problem, Korean Patent Registration No. 10-1217833 discloses a method of forming a thin layer of a raw material on a mold by spraying a raw material on a mold and forming a protective layer on the cornea, A nozzle spraying method or a pad coating comprising a printing layer formed on an upper side of a protective layer and formed in various colors to form an iris shape and a lens surface layer formed on an upper side of the printing layer to form a smooth outer surface, And a method of manufacturing the same. However, the above-mentioned color contact lens has a problem that the printed color and color are different from each other when the printed surface is coated with the lens surface layer coated on the print layer, and the transparency of the lens is lowered.
상술한 바와 같은 문제점을 해결하기 위하여, 본원발명에서는 안료가 각막이나 눈꺼풀 안쪽에 직접 닿지 않도록 콘택트렌즈의 인쇄 층 위에 코팅하면서도 인쇄 도료의 색감을 유지하고 컬러 콘택트렌즈의 투명성을 확보하는 컬러 콘택트렌즈 코팅액 및 이의 제조방법을 제공하는 것을 목적으로 한다.In order to solve the above problems, the present invention provides a color contact lens coating solution for coating a printing layer of a contact lens so as not to directly contact the inside of a cornea or an eyelid, And a method for producing the same.
목적을 달성하기 위한 구성으로는 에틸렌옥사이드(Ethylene oxide)를 포함하는 올리고머(oligomer) 44중량%에 열가소성 우레탄(thermoplastic urethane) 28중량%와 솔벤트(solvent) 28중량%를 첨가하여 기본 혼합물을 생성하고 상기의 기본 혼합물을 50 ~ 70℃로 가열 후 교반기를 사용하여 50 ~ 80rpm으로 교반한 뒤 교반이 완료된 기본 혼합물을 상온으로 냉각하는 단계로 구성된다.In order to accomplish the object, 28% by weight of thermoplastic urethane and 28% by weight of solvent are added to 44% by weight of an oligomer containing ethylene oxide to prepare a base mixture The base mixture is heated to 50 to 70 캜, stirred at 50 to 80 rpm using a stirrer, and then cooled to room temperature.
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본 발명의 또 다른 특징으로는 상기와 같이 제조된 컬러 콘택트렌즈 코팅액은 점도가 500 ~ 10,000cps이며, 산가(acid value)가 3.0이하이다.In another aspect of the present invention, the color contact lens coating liquid prepared as described above has a viscosity of 500 to 10,000 cps and an acid value of 3.0 or less.
상기한 바와 같이, 본 발명에 따른 컬러 콘택트렌즈 코팅액 및 이의 제조방법은 컬러 콘택트렌즈의 잉크층의 디자인 원본의 색상 및 색감을 그대로 유지할 수 있으며 잉크층과 코팅층 및 각막 보호층 사이의 밀착도를 높여 색소 내포성이 확보되어 사용자의 눈꺼풀 안쪽이 잉크층과 직접 접촉하여 발생하는 염증이나 변색 등의 부작용을 방지하는 효과가 있다.As described above, the color contact lens coating solution and the manufacturing method thereof according to the present invention can maintain the original color and color of the original design of the ink layer of the color contact lens and increase the adhesion between the ink layer and the coating layer and the protecting layer of the cornea, It has an effect of preventing adverse effects such as inflammation and discoloration which are caused by the direct contact of the inside of the eyelid with the ink layer.
또한, 코팅층에 잉크층을 형성 시 얼룩 등이 발생하지 않도록 하여 코팅층의 투명도를 확보할 수 있으며 패드 프린팅 기법으로 인하여 종래기술에 비해 잉크의 소모량을 감소시키면서도 공정시간을 단축시키는 효과가 있다.In addition, when the ink layer is formed on the coating layer, unevenness or the like is not generated, thereby ensuring the transparency of the coating layer. The pad printing technique has the effect of shortening the processing time while reducing the amount of ink consumption compared to the prior art.
도 1은 기존의 노즐분사방식 또는 패드 코팅으로 샌드위치 패드 프린팅에 의한 컬러 콘택트렌즈 제조방법을 나타내는 블럭도.
도 2는 본 발명에 따른 컬러 콘택트렌즈 코팅액 제조방법 중 에틸렌옥사이드(Ethylene oxide)를 포함하는 올리고머(oligomer) 생성 방법의 순서도.
도 3은 본 발명에 따른 컬러 콘택트렌즈 코팅액 제조방법의 순서도.FIG. 1 is a block diagram showing a method of manufacturing a color contact lens by sandwich pad printing using a conventional nozzle jetting method or pad coating.
FIG. 2 is a flow chart of a method for producing an oligomer containing ethylene oxide in a method of manufacturing a color contact lens coating liquid according to the present invention. FIG.
3 is a flow chart of a method of manufacturing a color contact lens coating solution according to the present invention.
도 2는 본 발명에 따른 컬러 콘택트렌즈 코팅액 제조방법 중 에틸렌옥사이드(Ethylene oxide)를 포함하는 올리고머(oligomer) 생성 방법의 순서도로서 이를 참고하여 본원발명의 상세 구성을 설명하면 하기와 같다.FIG. 2 is a flow chart of a method of producing an oligomer containing ethylene oxide in a method of manufacturing a color contact lens coating liquid according to the present invention. Referring to FIG. 2, the detailed structure of the present invention will be described below.
컬러 콘택트렌즈의 잉크층 표면에 패드 프린팅에 의하여 코팅되는 컬러 콘택트렌즈 코팅액의 제조방법 중 에틸렌옥사이드(Ethylene oxide)를 포함하는 올리고머(oligomer)는 에틸렌옥사이드 링이 포함된 모노머와 용제를 넣고 가열 후 100℃에 이르렀을 때 교반기를 사용하여 80 ~ 300rpm으로 교반하면서 카르복시산을 포함하는 아크릴 모노머 또는 카르복시산을 포함하는 올리고머 용액 중 하나를 유리반응기 안으로 드롭핑한 후, 상기의 혼합물을 100 ~ 120rpm으로 28 ~ 32분간 교반한다.The oligomer containing ethylene oxide in the process for preparing a color contact lens coating solution coated on the surface of the ink layer of a color contact lens by pad printing is prepared by adding monomers and a solvent containing an ethylene oxide ring, When one of the oligomer solutions containing an acrylic monomer or a carboxylic acid containing carboxylic acid was dropped into a glass reactor while stirring at 80 to 300 rpm using a stirrer, the mixture was stirred at 100 to 120 rpm at 28 to 32 Stir for a minute.
그리고, 이를 제조하기 위한 제조 장비 세팅 및 세부 순서는 하기와 같다.The manufacturing equipment setting and the detailed procedure for manufacturing this are as follows.
1. 2중 자켓 유리반응기에 고리가 닫힌 에틸렌옥사이드가 포함된 모노머를 넣는다.1. Add a monomer containing ethylene oxide with a closed loop to a 2-jacketed glass reactor.
2. 용제를 넣는다. 이때, 용제는 에틸락테이트(ethyl lactate), 에톡시 페놀(ethoxy phenol)등의 써클렌즈 잉크 바인더 베이스의 용제일 수도 있고, 케톤, 아세테이트, 알코올 계열의 용제일 수도 있다.2. Add solvent. In this case, the solvent may be a solvent for the base of a circular lens ink binder such as ethyl lactate, ethoxy phenol, etc., or may be a ketone, acetate, or alcohol solvent.
3. 카르복시산이 있는 아크릴 모노머 또는 올리고머를 드로핑 펀넬에 넣는다.3. Place the acrylic monomer or oligomer with carboxylic acid in the dropping funnel.
4. 반응기를 100도로 가열하고 교반기를 80 ~ 300 rpm에 세팅 후 나머지 neck에 콘덴서, 온도계를 설치한다.4. Heat the reactor at 100 ° C, set the stirrer at 80 ~ 300 rpm, and install condenser and thermometer on the remaining neck.
5. 반응물의 온도가 100도에 이르었을 때 드로핑 펀넬을 열어 카르복시산이 있는 아크릴 모노머 또는 올리고머를 반응기 안으로 흐르도록 하며, 그 속도는 드로핑 펀넬에 담긴 물질이 3시간 동안 드롭핑되게 맞춘다.5. When the temperature of the reactant reaches 100 ° C, the dripping funnel is opened to allow the acrylic monomer or oligomer with carboxylic acid to flow into the reactor, the rate of which is such that the material contained in the dripping funnel is dropped for 3 hours.
6. 교반기의 rpm을 100이상으로 세팅하여 고리가 닫힌 에틸렌옥사이드가 포함된 모노머의 에틸렌옥사이드와 카르복시산이 있는 아크릴 모노머 또는 올리고머의 카르복실 그룹이 반응할 수 있도록 한다.6. Set the rpm of the agitator to 100 or higher so that the ethylene oxide of the monomer containing the ring-closed ethylene oxide and the carboxyl group of the carboxylic acid-containing acrylic monomer or oligomer can react.
7. 반응은 산가가 5.0 ~ 10.0으로 떨어질 때 가지 진행하며, 촉매는 4차아민(암모늄) 계열을 사용할 수 있다.7. The reaction proceeds when the acid value falls from 5.0 to 10.0, and the catalyst can be a quaternary amine (ammonium) series.
8. 산가 측정은 KOH 0.1N 용액으로 중화 적정하여 습식법으로 계산하며, 프탈로시아닌(phthalocyanine) 지시약으로 표정한다.8. Acid value is calculated by wet method with neutralization titration with 0.1N KOH solution and expressed as phthalocyanine indicator.
도 3은 본 발명에 따른 컬러 콘택트렌즈 코팅액 제조방법의 순서도로서 이를 참고하여 본원발명의 상세 구성을 설명하면 하기와 같다.FIG. 3 is a flow chart of a method for manufacturing a color contact lens coating liquid according to the present invention. Referring to FIG. 3, the detailed structure of the present invention will be described below.
상기와 같이 제조된 에틸렌옥사이드(Ethylene oxide)를 포함하는 올리고머(oligomer) 44중량%에 열가소성 우레탄(thermoplastic urethane) 28중량%와 솔벤트(solvent) 28중량%를 첨가하여 기본 혼합물을 생성하는 제 1단계(S10);와 상기의 기본 혼합물을 50 ~ 70℃로 가열 후 교반기를 사용하여 50 ~ 80rpm으로 28 ~ 32분간 교반하는 제 2단계(S20); 및 상기의 교반이 완료된 기본 혼합물을 상온으로 냉각하는 제 3단계(S30);로 구성되는 것을 특징으로 하는 컬러 콘택트렌즈 코팅액 제조방법이다.The first step of preparing a basic mixture by adding 28 wt% of thermoplastic urethane and 28 wt% of solvent to 44 wt% of an oligomer containing ethylene oxide prepared as described above, (S20) of heating the base mixture to 50 to 70 占 폚 and stirring the mixture at 50 to 80 rpm for 28 to 32 minutes using a stirrer; And a third step (S30) of cooling the basic mixture, which has been stirred, to room temperature (S30).
이때, 상기의 제 1단계(S10)에서 에틸렌옥사이드(Ethylene oxide)를 포함하는 올리고머(oligomer)에 열가소성 우레탄(thermoplastic urethane)을 넣고 솔벤트(solvent)를 순서대로 넣는 것을 특징으로 한다.In this case, in the first step (S10), thermoplastic urethane is added to an oligomer containing ethylene oxide, and a solvent is sequentially introduced.
그리고, 이를 제조하기 위한 제조 장비 및 세부 순서는 하기와 같다.The manufacturing equipment and the detailed procedure for manufacturing the same are as follows.
1. 합성이 완료된 에틸렌 옥사이드를 포함하는 올리고머를 4-neck round bottom flask에 넣는다.1. Put oligomers containing synthesized ethylene oxide into a 4-neck round bottom flask.
2. 열가소성 우레탄(thermoplastic urethane)을 이어서 정해진 양만큼 넣는다.2. Add the thermoplastic urethane to the specified amount.
3. 솔벤트(solvent)를 마지막에 넣는다.3. Add solvent at the end.
4. 플라스크를 가열용 맨틀(heating mantle)에 꼽고 교반기를 장착 후 나머지 neck에 환류 냉각기, 온도계를 설치한다.4. Insert the flask into a heating mantle, install a stirrer, and install a reflux condenser and thermometer on the remaining neck.
5. 가열용 맨틀(heating mantle)의 온도를 60℃로 세팅 후, 환류 냉각기에 냉각수를 흐르게 한다.5. Set the temperature of the heating mantle to 60 ° C and let coolant flow through the reflux condenser.
6. 교반기의 rpm를 50 ~ 80으로 세팅하여 에틸렌 옥사이드를 포함하는 올리고머, 열가소성 우레탄, 솔벤트 세 가지의 물질이 잘 섞이도록 30분간 교반한다.6. Set the rpm of the stirrer to 50-80, and stir for 30 minutes so that the oligomer, the thermoplastic urethane, and the solvent containing ethylene oxide are mixed well.
7. 교반 후 상온까지 냉각시킨 후 혼합물을 취득한다. 7. After stirring, cool to room temperature and obtain the mixture.
상기와 같은 방법으로 제조하여 점도는 500 ~ 10,000cps, 산가가 3.0이하의 코팅용 물질이 생성되고, 이는 각막과 직접 접촉하는 각막 보호층은 물론 눈꺼풀 안쪽과 접촉하는 렌즈 표면층에 모두 적용할 수 있다.A coating material having a viscosity of 500 to 10,000 cps and an acid value of 3.0 or less is produced in the same manner as described above and can be applied not only to the corneal protective layer in direct contact with the cornea but also to the lens surface layer in contact with the inside of the eyelid .
상기와 같이 제조되는 컬러 콘택트렌즈 코팅액은 컬러 콘택트렌즈의 잉크층 디자인 원본의 색상 및 색감을 그대로 유지할 수 있으며 잉크층과 코팅층 및 각막 보호층 사이의 밀착도를 높여 색소 내포성이 확보되어 사용자의 눈꺼풀 안쪽이 잉크층과 직접 접촉하여 발생하는 염증이나 변색 등의 부작용을 방지하는 효과가 있다.The color contact lens coating solution prepared as described above can maintain the color and color of the original ink layer design of the color contact lens as it is and improves the adhesion between the ink layer and the coating layer and the corneal protective layer, There is an effect of preventing side effects such as inflammation and discoloration which are generated by direct contact with the ink layer.
또한, 코팅층에 잉크층을 형성 시 얼룩 등이 발생하지 않도록 하여 코팅층의 투명도를 확보할 수 있으며 패드 프린팅을 이용하여 콘택트렌즈를 코팅하기에 알맞은 점도를 갖음으로 코팅액 소모량을 감소시키면서도 콘택트렌즈의 잉크층 형성을 위한 공정시간을 단축시킬 수 있다.In addition, it is possible to ensure transparency of the coating layer by preventing unevenness or the like when the ink layer is formed on the coating layer, and by having a viscosity suitable for coating the contact lens by using pad printing, the consumption amount of the coating liquid is reduced, It is possible to shorten the processing time for formation.
그리고, 상기와 같은 제조 방법으로 제조된 컬러 콘택트렌즈 코팅액은 1 ~ 5℃에서 2주 이상의 저장 안정성을 보인다.The color contact lens coating solution prepared by the above production method shows storage stability at 1 to 5 ° C. for 2 weeks or more.
본 발명은 특정의 실시 예 및 적용 예와 관련하여 도시 및 설명하였지만, 첨부된 특허청구범위에 의해 나타난 발명의 사상 및 영역으로부터 벗어나지 않는 한도 내에서 다양한 개조 및 변화 가능하다는 것을 당 업계에서 통상의 지식을 가진 자라면 누구나 쉽게 알 수 있을 것이다.While the invention has been shown and described with respect to specific embodiments and applications thereof, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined by the appended claims. Anyone who has it will know it easily.
S10. 제 1단계 S11. 제 1 - 1단계
S12. 제 1 - 2단계 S13. 제 1 - 3단계
S20. 제 2단계 S30. 제 3단계S10. First step S11. Steps 1 - 1
S12. Steps 1 and 2 S13. Steps 1 - 3
S20. Second step S30. Step 3
Claims (4)
에틸렌옥사이드(Ethylene oxide)를 포함하는 올리고머(oligomer) 44중량%에 열가소성 우레탄(thermoplastic urethane) 28중량%와 솔벤트(solvent) 28중량%를 첨가하여 기본 혼합물을 생성하는 제 1단계(S10);와
상기의 기본 혼합물을 50 ~ 70℃로 가열 후 교반기를 사용하여 50 ~ 80rpm으로 28 ~ 32분간 교반하는 제 2단계(S20); 및
상기의 교반이 완료된 기본 혼합물을 상온으로 냉각하는 제 3단계(S30);로 구성되며, 상기의 제 1단계 내지 제 3단계로 제조되어 점도가 500 ~ 10,000cps이고, 산가(acid value)가 3.0이하인 것을 특징으로 하는 컬러 콘택트렌즈 코팅액의 제조방법.1. A method for manufacturing a color contact lens coating solution coated on a surface of an ink layer of a color contact lens by pad printing,
A first step (S10) of adding 28 wt% of thermoplastic urethane and 28 wt% of solvent to 44 wt% of an oligomer containing ethylene oxide to produce a base mixture;
A second step (S20) of heating the basic mixture to 50 to 70 캜 and stirring the mixture at 50 to 80 rpm for 28 to 32 minutes using a stirrer; And
And a third step (S30) of cooling the base mixture after completion of the stirring to a room temperature. The first step to the third step of preparing the base mixture has a viscosity of 500 to 10,000 cps and an acid value of 3.0 By weight based on the total weight of the colored contact lens coating liquid.
점도가 500 ~ 10,000cps이고, 산가(acid value)가 3.0이하인 것을 특징으로 하는 컬러 콘택트렌즈 코팅액.
A color contact lens coating solution prepared by the method of claim 1,
A viscosity of 500 to 10,000 cps, and an acid value of 3.0 or less.
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| JP2011529784A (en) | 2008-08-06 | 2011-12-15 | ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Two-layer coating system with improved intermediate adhesion |
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| KR100647133B1 (en) | 2005-06-03 | 2006-11-23 | (주)네오비젼 | Sandwich method for contact lens color coating |
| JP2011529784A (en) | 2008-08-06 | 2011-12-15 | ビーエーエスエフ コーティングス ゲゼルシャフト ミット ベシュレンクテル ハフツング | Two-layer coating system with improved intermediate adhesion |
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