KR101112978B1 - Manufacturing method of transparent conductive layer for touch panel using bar-coating - Google Patents
Manufacturing method of transparent conductive layer for touch panel using bar-coating Download PDFInfo
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- KR101112978B1 KR101112978B1 KR1020100032703A KR20100032703A KR101112978B1 KR 101112978 B1 KR101112978 B1 KR 101112978B1 KR 1020100032703 A KR1020100032703 A KR 1020100032703A KR 20100032703 A KR20100032703 A KR 20100032703A KR 101112978 B1 KR101112978 B1 KR 101112978B1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D1/00—Processes for applying liquids or other fluent materials
- B05D1/36—Successively applying liquids or other fluent materials, e.g. without intermediate treatment
- B05D1/38—Successively applying liquids or other fluent materials, e.g. without intermediate treatment with intermediate treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
- B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
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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
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B13/00—Apparatus or processes specially adapted for manufacturing conductors or cables
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
- H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F2203/00—Indexing scheme relating to G06F3/00 - G06F3/048
- G06F2203/041—Indexing scheme relating to G06F3/041 - G06F3/045
- G06F2203/04103—Manufacturing, i.e. details related to manufacturing processes specially suited for touch sensitive devices
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Abstract
본 발명은 바 코팅을 이용한 터치패널용 투명전도막의 제조방법에 관한 것으로, 안티몬주석산화물, 히드록시 프로필 셀룰로오스, 알루미늄 용액 및 폴리(3,4-에틸렌디옥시티오펜)폴리스티렌술포네이트를 혼합하는 원료혼합단계, 전술한 원료혼합단계를 거친 원료에 분산용매를 투입하는 분산용매혼합단계, 전술한 분산용매가 혼합된 원료를 바 코팅 장치로 기재층의 표면에 코팅하는 바코팅단계, 전술한 바코팅단계를 거쳐 형성된 코팅층을 건조하는 건조단계, 전술한 건조단계를 거친 코팅층에 UV를 조사하는 UV조사단계 및 전술한 UV조사단계를 거친 코팅층을 소결하는 소결단계를 포함하여 이루어진다.The present invention relates to a method for manufacturing a transparent conductive film for a touch panel using a bar coating, and a raw material mixture for mixing antimony tin oxide, hydroxy propyl cellulose, aluminum solution, and poly (3,4-ethylenedioxythiophene) polystyrenesulfonate. Step, the dispersion solvent mixing step of injecting the dispersion solvent to the raw material passed through the above-described raw material mixing step, the bar coating step of coating the raw material mixed with the above-described dispersion solvent on the surface of the base layer with a bar coating device, the bar coating step described above It comprises a drying step of drying the coating layer formed through, a UV irradiation step of irradiating UV to the coating layer subjected to the drying step described above, and a sintering step of sintering the coating layer subjected to the above UV irradiation step.
Description
본 발명은 바 코팅을 이용한 터치패널용 투명전도막의 제조방법에 관한 것으로, 더욱 상세하게는 바 코팅 장치를 이용하여 제조시간이 짧고, 면적이 큰 제품에 적용 가능한 바 코팅을 이용한 터치패널용 투명전도막의 제조방법에 관한 것이다.
The present invention relates to a method for manufacturing a transparent conductive film for a touch panel using a bar coating, and more particularly, a transparent conductive film for a touch panel using a bar coating that can be applied to a product having a short manufacturing time and a large area using a bar coating apparatus. It relates to a method for producing a membrane.
본 발명은 바 코팅을 이용한 터치패널용 투명전도막의 제조방법에 관한 것으로, 더욱 상세하게는 바 코팅 장치를 이용하여 코팅속도가 빠르며, 면적이 큰 제품에 적용 가능한 바 코팅을 이용한 터치패널용 투명전도막의 제조방법에 관한 것이다.The present invention relates to a method for manufacturing a transparent conductive film for a touch panel using a bar coating, and more particularly, a coating speed is high by using a bar coating apparatus, and a transparent conductive film for a touch panel using a bar coating applicable to a large area product. It relates to a method for producing a membrane.
투명전도막은 1907년 Badeker에 의해 처음 제조된 이래로 광전자 기술 및 평판 디스플레이의 기술을 향상시켜 왔으며, 최근에는 정보통신 산업의 발전에 따라 소비량이 급격하게 증가하고 있다.Since the first conductive film was manufactured by Badeker in 1907, the transparent conductive film has improved the technology of optoelectronic technology and flat panel display, and recently, the consumption is rapidly increasing with the development of the information and communication industry.
투명전도막은 태양전지, 항공재료, LCD, PDP 및 터치패널 장치 등에 사용되며, 휴대폰이나 디스플레이 등의 전자제품 시장이 확대됨에 소비량이 급격하게 증가하고 있다.Transparent conductive films are used in solar cells, aviation materials, LCDs, PDPs, and touch panel devices. Consumption is rapidly increasing as the market for electronic products such as mobile phones and displays expands.
전자제품의 재료로 사용되는 투명전도막은 전도성, 투광성, 기판과의 밀착성, 내열성 및 경도 등의 물성이 우수해야 하는데, 최근까지 가장 많이 사용되고 있는 유리의 경우 중량이 무겁고 유연성이 없기 때문에 곡면을 갖는 디스플레이 제품에는 적용하기 어려운 문제점이 있었다.Transparent conductive films used as electronic materials should have excellent physical properties such as conductivity, light transmittance, adhesion to substrates, heat resistance and hardness. Glass, which has been used most recently, has a curved surface because it is heavy and inflexible. The product had a problem that was difficult to apply.
전술한 문제점을 해결하기 위해 폴리에틸렌테레프탈레이트(PET, Polyethyleneterephthalate)나 폴리에테르술폰(PES, polyether sulfone)과 같은 투명성 고분자의 기판상에 투명한 전도성 산화막을 증착하는 방법이 이용되고 있다.In order to solve the above problems, a method of depositing a transparent conductive oxide film on a substrate of a transparent polymer such as polyethylene terephthalate (PET) or polyether sulfone (PES) is used.
그러나, 전술한 방법으로 전도성 산화막을 증착하는 방법은 건식코팅방법을 적용하기 때문에, 코팅시간이 길고 넓은 면적을 갖는 기판에는 적용하기 어려운 문제점이 있었다.
However, the method of depositing the conductive oxide film by the above-described method has a problem that it is difficult to apply to a substrate having a long coating time and a large area because the dry coating method is applied.
본 발명의 목적은 유연성, 전도성, 투광성, 기판과의 밀착성, 내열성 및 경도 등의 물성이 우수하며, 제조 시간이 짧고 넓은 면적을 갖는 기판에 적용가능한 바 코팅을 이용한 터치패널용 투명전도막의 제조방법을 제공하는 것이다.
An object of the present invention is a method of manufacturing a transparent conductive film for a touch panel using a bar coating having excellent physical properties such as flexibility, conductivity, light transmittance, adhesion to a substrate, heat resistance and hardness, and having a short manufacturing time and applicable to a substrate having a large area. To provide.
본 발명의 목적은 안티몬주석산화물, 히드록시 프로필 셀룰로오스, 알루미늄 용액 및 폴리(3,4-에틸렌디옥시티오펜)폴리스티렌술포네이트를 혼합하는 원료혼합단계, 상기 원료혼합단계를 거친 원료에 분산용매를 투입하는 분산용매혼합단계, 상기 분산용매가 혼합된 코팅원료를 바 코팅 장치로 기재층의 표면에 코팅하는 바코팅단계, 상기 바코팅단계를 거쳐 형성된 코팅층을 건조하는 건조단계, 상기 건조단계를 거친 코팅층에 UV를 조사하는 UV조사단계 및 상기 UV조사단계를 거친 코팅층을 소결하는 소결단계를 포함하여 이루어지는 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법을 제공함에 의해 달성된다.An object of the present invention is a raw material mixing step of mixing the antimony tin oxide, hydroxy propyl cellulose, aluminum solution and poly (3,4-ethylenedioxythiophene) polystyrene sulfonate, the dispersion solvent is added to the raw material after the raw material mixing step To disperse solvent mixing step, the bar coating step of coating the coating material mixed with the dispersion solvent on the surface of the base layer with a bar coating device, a drying step of drying the coating layer formed through the bar coating step, the coating layer subjected to the drying step It is achieved by providing a method for manufacturing a transparent conductive film for a touch panel using a bar, characterized in that it comprises a sintering step of sintering the coating layer subjected to the UV irradiation step and the UV irradiation step to the UV irradiation.
본 발명의 바람직한 특징에 따르면, 상기 코팅원료는 안티몬주석산화물 55 내지 65 중량비, 히드록시 프로필 셀룰로오스 0.09 내지 0.1 중량비, 알루미늄 용액 5 내지 7 중량비, 폴리(3,4-에틸렌디옥시티오펜)폴리스티렌술포네이트를 5 내지 7 중량비 및 분산용매 5 내지 10 중량비를 혼합하여 이루어지는 것으로 한다.According to a preferred feature of the invention, the coating material is 55 to 65 weight ratio of antimony tin oxide, 0.09 to 0.1 weight ratio of hydroxy propyl cellulose, 5 to 7 weight ratio of aluminum solution, poly (3,4-ethylenedioxythiophene) polystyrenesulfonate It is made by mixing 5-7 weight ratio and 5-10 weight ratio of dispersion solvents.
본 발명의 더 바람직한 특징에 따르면, 상기 분산용매는 아세톤과 에탄올의 혼합용매인 것으로 한다. According to a more preferred feature of the invention, the dispersion solvent is to be a mixed solvent of acetone and ethanol.
본 발명의 더욱 바람직한 특징에 따르면, 상기 바코팅단계는 3 내지 7 메시를 나타내는 코팅바를 이용하여 이루어지는 것으로 한다.According to a more preferred feature of the invention, the bar coating step is to be made using a coating bar representing 3 to 7 mesh.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 바코팅단계는 5 메시를 나타내는 코팅바를 이용하여 이루어지는 것으로 한다.According to a further preferred feature of the invention, the bar coating step is to be made using a coating bar representing 5 mesh.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 건조단계는 80 내지 90℃의 온도에서 1 내지 3분 동안 이루어지는 것으로 한다.According to a further preferred feature of the invention, the drying step is to be made for 1 to 3 minutes at a temperature of 80 to 90 ℃.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 UV조사단계는 100 내지 150W의 램프를 이용하여 2 내지 4분 동안 이루어지는 것으로 한다.According to a further preferred feature of the invention, the UV irradiation step is to be made for 2 to 4 minutes using a lamp of 100 to 150W.
본 발명의 더욱 더 바람직한 특징에 따르면, 상기 소결단계는 80℃의 온도로 25 내지 35분 동안 이루어지는 것으로 한다.
According to a further preferred feature of the invention, the sintering step is to be made for 25 to 35 minutes at a temperature of 80 ℃.
본 발명에 따른 바 코팅을 이용한 터치패널용 투명전도막의 제조방법은 유연성, 전도성, 투광성, 기판과의 밀착성, 내열성 및 경도 등의 물성이 우수하며, 넓은 면적을 갖는 기판에 적용가능한 터치패널용 투명전도막을 빠른 시간에 제공하는 탁월한 효과를 나타낸다.
The method for manufacturing a transparent conductive film for a touch panel using a bar coating according to the present invention is excellent in physical properties such as flexibility, conductivity, light transmittance, adhesion to a substrate, heat resistance, and hardness, and is applicable to a substrate having a large area. Excellent effect of providing the conductive film in a short time.
도 1은 본 발명에 따른 바 코팅을 이용한 터치패널용 투명전도막의 제조방법을 나타낸 순서도이다.
도 2는 본 발명의 실시예 1 내지 3 및 실시예 5를 통해 제조된 바 코팅을 이용한 터치패널용 투명전도막의 결정성을 X선회절분광기(XRD)로 분석하여 나타낸 그래프이다.
도 3은 본 발명의 실시예 1 내지 5를 통해 제조된 바 코팅을 이용한 터치패널용 투명전도막의 파장에 따른 투광도를 나타낸 그래프이다.
도 4는 본 발명의 실시예 1을 통해 제조된 바 코팅을 이용한 터치패널용 투명전도막의 표면상태를 나타낸 그림이다.
도 5는 본 발명의 실시예 3을 통해 제조된 바 코팅을 이용한 터치패널용 투명전도막의 표면상태를 나타낸 그림이다.
도 6은 본 발명의 실시예 5를 통해 제조된 바 코팅을 이용한 터치패널용 투명전도막의 표면상태를 나타낸 그림이다.1 is a flowchart illustrating a method of manufacturing a transparent conductive film for a touch panel using a bar coating according to the present invention.
Figure 2 is a graph showing the crystallinity of the X-ray diffractometer (XRD) of the crystallinity of the transparent conductive film for a touch panel using a bar coating prepared through Examples 1 to 3 and Example 5 of the present invention.
3 is a graph showing light transmittance according to a wavelength of a transparent conductive film for a touch panel using a bar coating prepared through Examples 1 to 5 of the present invention.
Figure 4 is a view showing the surface state of the transparent conductive film for a touch panel using a bar coating prepared in Example 1 of the present invention.
5 is a view showing the surface state of a transparent conductive film for a touch panel using a bar coating prepared in Example 3 of the present invention.
6 is a view showing the surface state of the transparent conductive film for a touch panel using a bar coating prepared in Example 5 of the present invention.
이하에는, 본 발명의 바람직한 실시예와 각 성분의 물성을 상세하게 설명하되, 이는 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자가 발명을 용이하게 실시할 수 있을 정도로 상세하게 설명하기 위한 것이지, 이로 인해 본 발명의 기술적인 사상 및 범주가 한정되는 것을 의미하지는 않는다.
In the following, preferred embodiments of the present invention and the physical properties of each component will be described in detail, which is intended to explain in detail enough to be able to easily carry out the invention by one of ordinary skill in the art, This does not mean that the technical spirit and scope of the present invention is limited.
본 발명에 따른 바 코팅을 이용한 터치패널용 투명전도막의 제조방법은 안티몬주석산화물, 히드록시 프로필 셀룰로오스, 알루미늄 용액 및 폴리(3,4-에틸렌디옥시티오펜)폴리스티렌술포네이트를 혼합하는 원료혼합단계(S101), 전술한 원료혼합단계(S103)를 거친 원료에 분산용매를 투입하는 분산용매혼합단계(S103), 전술한 분산용매가 혼합된 코팅원료를 바 코팅 장치로 기재층의 표면에 코팅하는 바코팅단계(S105), 전술한 바코팅단계(S105)를 거쳐 형성된 코팅층을 건조하는 건조단계(S107), 전술한 건조단계(S107)를 거친 코팅층에 UV를 조사하는 UV조사단계(S109) 및 전술한 UV조사단계(S109)를 거친 코팅층을 소결하는 소결단계(S111)를 포함하여 이루어진다.Method for producing a transparent conductive film for a touch panel using a bar coating according to the present invention is a raw material mixing step of mixing antimony tin oxide, hydroxy propyl cellulose, aluminum solution and poly (3,4-ethylenedioxythiophene) polystyrene sulfonate ( S101), a dispersion solvent mixing step (S103) of injecting a dispersion solvent into the raw material which has passed the above-described raw material mixing step (S103), and coating the coating material mixed with the above-described dispersion solvent on the surface of the base layer with a bar coating apparatus. The coating step (S105), the drying step (S107) for drying the coating layer formed through the bar coating step (S105) described above, the UV irradiation step (S109) and the above-mentioned to irradiate UV to the coating layer through the above-mentioned drying step (S107) It comprises a sintering step (S111) for sintering the coating layer passed through a UV irradiation step (S109).
전술한 코팅원료는 안티몬주석산화물, 히드록시 프로필 셀룰로오스, 알루미늄 용액 및 폴리(3,4-에틸렌디옥시티오펜)폴리스티렌술포네이트를 혼합하는 단계로, 안티몬주석산화물 55 내지 65 중량비, 히드록시 프로필 셀룰로오스 0.09 내지 0.1 중량비, 알루미늄 용액 5 내지 7 중량비 및 폴리(3,4-에틸렌디옥시티오펜)폴리스티렌술포네이트를 5 내지 7 중량비를 혼합하여 이루어진다.The coating material described above is a step of mixing antimony tin oxide, hydroxy propyl cellulose, aluminum solution and poly (3,4-ethylenedioxythiophene) polystyrene sulfonate, 55 to 65 weight ratio of antimony tin oxide, hydroxy propyl cellulose 0.09 To 0.1% by weight, 5 to 7% by weight of aluminum solution and poly (3,4-ethylenedioxythiophene) polystyrenesulfonate by mixing 5 to 7% by weight.
전술한 알루미늄 용액은 염화알미늄, 황산알미늄 및 알민산나트륨으로 이루어진 그룹으로부턴 선택된 하나 이상을 포함하여 이루어질 수 있다.The above-mentioned aluminum solution may comprise one or more selected from the group consisting of aluminum chloride, aluminum sulfate and sodium aluminate.
전술한 원료혼합단계(S101)에서 혼합된 원료들은 바 코팅을 실시할 수 있는 물성을 나타내어, 터치패널용 투명전도막의 제조시간을 단축시키는 역할을 한다.
The raw materials mixed in the above-described raw material mixing step (S101) exhibits physical properties capable of performing bar coating, thereby shortening the manufacturing time of the transparent conductive film for the touch panel.
전술한 분산용매혼합단계(S103)는 전술한 원료혼합단계(S101)를 거친 원료에 분산용매를 투입하는 단계로, 이러한 분산용매는 5 내지 10 중량비가 첨가되며, 아세톤과 에탄올이 2 대 8의 비율로 혼합되어 이루어지는데, 안티몬주석산화물과 같은 고체성분이 액체성분과 잘 혼합되도록 하는 역할을 한다.The above-mentioned dispersion solvent mixing step (S103) is a step of injecting a dispersion solvent into the raw material which has passed the above-described raw material mixing step (S101), such a dispersion solvent is added in a weight ratio of 5 to 10, acetone and ethanol of 2 to 8 It is mixed in a ratio, and serves to make the solid component such as antimony tin oxide well mixed with the liquid component.
전술한 분산용매혼합단계(S103)는 분산용매가 전술한 원료와 잘 혼합될 수 있도록 스티어 바를 이용하여 1시간 동안 교반하여 이루어진다.
The above-described dispersion solvent mixing step (S103) is made by stirring for 1 hour using a steer bar so that the dispersion solvent is well mixed with the above-described raw materials.
전술한 바코팅단계(S105)는 전술한 분산용매가 혼합된 원료를 바(Bar) 코팅 장치로 기재층의 표면에 코팅하는 단계로, 3 내지 7 메시를 나타내는 코팅바를 이용하여 분산용매가 혼합된 원료를 유연성을 갖는 고분자 재료인 폴리에틸렌테레프탈레이트로 이루어진 기재층의 표면에 코팅하여, 유연성을 갖는 터치패널용 투명전도막을 제공하는 역할을 한다.
The above-described bar coating step (S105) is a step of coating the surface of the substrate layer with a bar coating apparatus mixed with the above-described dispersion solvent, the dispersion solvent is mixed using a coating bar representing 3 to 7 mesh The raw material is coated on the surface of the base material layer made of polyethylene terephthalate, which is a polymer material having flexibility, and serves to provide a transparent conductive film for a touch panel having flexibility.
전술한 건조단계(S107)는 전술한 바코팅단계(S105)를 거쳐 형성된 코팅층을 건조하는 단계로, 80 내지 90℃의 온도인 열 건조로에서 1 내지 3분 동안 이루어지는데, 이러한 건조단계(S107)를 통해 원료에 첨가되어 있는 수분이 제거된다.
The above drying step (S107) is a step of drying the coating layer formed through the above-described bar coating step (S105), it is made for 1 to 3 minutes in a thermal drying furnace of a temperature of 80 to 90 ℃, this drying step (S107) Moisture added to the raw material is removed through.
전술한 UV조사단계(S109)는 전술한 건조단계(S107)를 거친 코팅층에 UV를 조사하는 단계로, 100 내지 150W의 램프를 이용하여 2 내지 4분 동안 이루어지는데, 자외선 지수가 4 내지 6인 UV를 조사하여 전술한 원료성분들이 졸(Sol)에서 겔(Gel)로 상전이(Phase transformation) 되도록 하는 졸겔법을 이용하여 전술한 원료를 겔 상태로 전환하는 단계다.
The above-described UV irradiation step (S109) is a step of irradiating UV to the coating layer through the drying step (S107) described above, it is made for 2 to 4 minutes using a lamp of 100 to 150W, the UV index is 4 to 6 The above-described raw material is converted into a gel state by using a sol-gel method in which the above-described raw material ingredients are phase-transformed from sol to gel by irradiating UV.
전술한 소결단계(S111)는 전술한 UV조사단계(S109)를 거친 코팅층을 소결하는 단계로, 80℃의 온도로 25 내지 35분 동안 이루어지는데, 이러한 소결단계(S111)를 통해 겔 상태인 원료에 함유되어 있는 유기용매 등의 불순물이 제거된다.
The above sintering step (S111) is a step of sintering the coating layer through the UV irradiation step (S109) described above, it is made for 25 to 35 minutes at a temperature of 80 ℃, the raw material in the gel state through this sintering step (S111) Impurities, such as an organic solvent contained in, are removed.
이하에서는 본 발명에 따른 바 코팅을 이용한 터치패널용 투명전도막의 제조방법 및 실험데이터를 실시예를 들어 설명한다.Hereinafter, a method and experimental data of a transparent conductive film for a touch panel using a bar coating according to the present invention will be described with reference to Examples.
<실시예 1>≪ Example 1 >
안티몬주석산화물 60 중량비, 히드록시 프로필 셀룰로오스 0.1 중량비, 염화알미늄 6 중량비 및 폴리(3,4-에틸렌디옥시티오펜)폴리스티렌술포네이트를 6 중량비를 혼합하여 원료를 제조하고, 아세톤 1.6 중량비 및 에탄올 6.4 중량비로 이루어진 분산용매를 원료에 혼합한 후에 스티어 바를 이용하여 1시간 동안 교반하고, 폴리에틸렌테레프탈레이트로 이루어진 개지층의 표면에 분산용매가 혼합된 원료를 바 코팅 장치에 구비된 3 메시 코팅바를 이용하여 코팅층을 형성하고, 바 코팅 장치로 형성된 코팅층을 80 내지 90℃의 열 건조로에서 2분 동안 건조하고, 120W의 램프를 이용하여 3분 동안 자외선 지수가 5인 UV를 조사하고, 80℃의 온도로 30분 동안 가열하여 바 코팅을 이용한 터치패널용 투명전도막을 제조하였다.
A raw material was prepared by mixing 60 weight ratio of antimony tin oxide, 0.1 weight ratio of hydroxypropyl cellulose, 6 weight ratio of aluminum chloride, and 6 weight ratio of poly (3,4-ethylenedioxythiophene) polystyrenesulfonate, and 1.6 weight ratio of acetone and 6.4 weight ratio of ethanol. After mixing the dispersion solvent consisting of the raw material and stirred for 1 hour using a steer bar, the coating layer using a 3 mesh coating bar provided with a raw material in which the dispersion solvent is mixed on the surface of the opening layer made of polyethylene terephthalate bar coating apparatus To form a coating layer formed with a bar coating apparatus for 2 minutes in a heat drying furnace of 80 to 90 ℃, using a lamp of 120W for 3 minutes to irradiate UV with an ultraviolet index of 5, at a temperature of 80
<실시예 2><Example 2>
실시예 1과 동일하게 진행하되, 4 메시 코팅바가 구비된 바 코팅 장치를 이용하여 바 코팅을 이용한 터치패널용 두명전도막을 제조하였다.
Proceed in the same manner as in Example 1, using a bar coating apparatus provided with a four mesh coating bar to prepare a two-layer conductive film for a touch panel using a bar coating.
<실시예 3><Example 3>
실시예 1과 동일하게 진행하되, 5 메시 코팅바가 구비된 바 코팅 장치를 이용하여 바 코팅을 이용한 터치패널용 두명전도막을 제조하였다.
Proceed in the same manner as in Example 1, using a bar coating apparatus provided with a 5 mesh coating bar to prepare a two-layer conductive film for a touch panel using a bar coating.
<실시예 4><Example 4>
실시예 1과 동일하게 진행하되, 6 메시 코팅바가 구비된 바 코팅 장치를 이용하여 바 코팅을 이용한 터치패널용 두명전도막을 제조하였다.
Proceed in the same manner as in Example 1, using a bar coating device provided with a 6 mesh coating bar to prepare a two-layer conductive film for a touch panel using a bar coating.
<실시예 5>Example 5
실시예 1과 동일하게 진행하되, 7 메시 코팅바가 구비된 바 코팅 장치를 이용하여 바 코팅을 이용한 터치패널용 두명전도막을 제조하였다.
Proceed in the same manner as in Example 1, using a bar coating device provided with a 7 mesh coating bar to prepare a two-layer conductive film for a touch panel using a bar coating.
실시예 1 내지 3 및 실시예 5를 통해 제조된 바 코팅을 이용한 터치패널용 투명전도막의 결정성을 X선회절분광기(XRD)로 분석하여 도 2에 나타내었다.The crystallinity of the transparent conductive film for a touch panel using the bar coating prepared through Examples 1 to 3 and Example 5 was analyzed by X-ray diffractometer (XRD) and shown in FIG. 2.
도 2에 나타낸 것처럼 본 발명에 의해 제조된 바 코팅을 이용한 터치패널용 투명전도막은 막의 두께가 증가할수록 결정성이 향상되는 것을 알 수 있다.As shown in FIG. 2, it can be seen that the transparent conductive film for a touch panel using the coating prepared by the present invention improves crystallinity as the thickness of the film increases.
또한, 표면에너지가 낮아지는 (110)방향으로 결정립의 크기 증가와 함께 미세 구조의 치밀화가 진행되는 것을 알 수 있다.
In addition, it can be seen that the densification of the fine structure proceeds with the increase in the size of the crystal grains in the (110) direction where the surface energy is lowered.
실시예 1 내지 5를 통해 제조된 바 코팅을 이용한 터치패널용 투명전도막의 투광성을 측정하여 아래 표 1에 나타내었으며, 파장영역에 따른 투광성은 도 3에 나타내었다.The light transmittance of the transparent conductive film for a touch panel using the bar coating prepared through Examples 1 to 5 was measured and shown in Table 1 below, and the light transmittance according to the wavelength range is shown in FIG. 3.
(단, 투광도는 200 내지 900nm의 파장영역을 갖는 UV-Visble Haze Meter를 이용하여 측정하였다.)
(However, the transmittance was measured using a UV-Visble Haze Meter having a wavelength range of 200 to 900nm.)
<표 1>TABLE 1
위에 표 1에 나타낸 것처럼 본 발명에 의해 제조된 바 코팅을 이용한 터치패널용 투명전도막은 투광성이 우수하며, 특히 실시예 3에 나타낸 것처럼 5 메시의 코팅바를 사용하여 바 코팅을 실시한 경우 가장 우수한 투광도를 나타내었다.
As shown in Table 1 above, the transparent conductive film for a touch panel using the bar coating prepared by the present invention is excellent in light transmittance, and in particular, when the bar coating is performed using a coating bar of 5 mesh as shown in Example 3, the best light transmittance is obtained. Indicated.
실시예 1 내지 5를 통해 제조된 바 코팅을 이용한 터치패널용 투명전도막의 면저항을 측정하여 아래 표 2에 나타내었으며, 실시예 1, 실시예 3, 실시예 5를 통해 제조된 터치패널용 투명전도막의 표면을 촬영하여 도 4(실시예 1), 그림 5(실시예 3) 내지 도 6(실시예 5)에 나타내었다.Measurement of the sheet resistance of the transparent conductive film for a touch panel using the bar coating prepared through Examples 1 to 5 is shown in Table 2 below, the transparent conductive for the touch panel manufactured through Examples 1, 3 and 5 The surface of the film was photographed and shown in FIGS. 4 (Example 1) and FIGS. 5 (Example 3) to 6 (Example 5).
(단, 면저항은 4탐침 면저항 측정장치를 이용하여 측정하였다.)
(However, the sheet resistance was measured using a four probe sheet resistance measuring device.)
<표 2>TABLE 2
위에 표 2 및 도 4 내지 6에 나타낸 것처럼 본 발명에 의해 제조된 바 코팅을 이용한 터치패널용 투명전도막은 낮은 면저항을 나타내었으며, 특히 실시예 3을 통해 제조된 터치패널용 투명전도막의 면저항 값이 가장 낮고, 도 5에 나타낸 것처럼 표면이 가장 고르게 형성되어 투명성이 요구되는 터치패널용 투명전도막에 가장 적합한 것을 알 수 있다.
As shown in Table 2 and FIGS. 4 to 6, the transparent conductive film for the touch panel using the bar coating produced by the present invention exhibited low sheet resistance, and in particular, the sheet resistance value of the transparent conductive film for the touch panel manufactured according to Example 3 It can be seen that it is the lowest and most suitable for the transparent conductive film for the touch panel which requires the transparency because the surface is most evenly formed as shown in FIG. 5.
S101 ; 원료혼합단계 S103 ; 분산용매혼합단계
S105 ; 바코팅단계 S107 ; 건조단계
S109 ; UV조사단계 S111 ; 소결단계S101; Raw material mixing step S103; Dispersion solvent mixing step
S105; Bar coating step S107; Drying stage
S109; UV irradiation step S111; Sintering Step
Claims (8)
상기 원료혼합단계를 거친 원료에 분산용매를 투입하는 분산용매혼합단계;
상기 분산용매가 혼합된 코팅원료를 바 코팅 장치로 기재층의 표면에 코팅하는 바코팅단계;
상기 바코팅단계를 거쳐 형성된 코팅층을 건조하는 건조단계;
상기 건조단계를 거친 코팅층에 UV를 조사하는 UV조사단계; 및
상기 UV조사단계를 거친 코팅층을 소결하는 소결단계;를 포함하여 이루어지는 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법.
Raw material mixing step of mixing the antimony tin oxide, hydroxy propyl cellulose, aluminum solution and poly (3,4-ethylenedioxythiophene) polystyrene sulfonate;
A dispersion solvent mixing step of injecting a dispersion solvent into the raw material which has passed the raw material mixing step;
A bar coating step of coating the coating material mixed with the dispersion solvent on the surface of the base layer with a bar coating apparatus;
A drying step of drying the coating layer formed through the bar coating step;
UV irradiation step of irradiating UV to the coating layer after the drying step; And
Sintering step of sintering the coating layer subjected to the UV irradiation step; Method of manufacturing a transparent conductive film for a touch panel using a coating comprising a.
상기 코팅원료는 안티몬주석산화물 55 내지 65 중량비, 히드록시 프로필 셀룰로오스 0.09 내지 0.1 중량비, 알루미늄 용액 5 내지 7 중량비, 폴리(3,4-에틸렌디옥시티오펜)폴리스티렌술포네이트를 5 내지 7 중량비 및 분산용매 5 내지 10 중량비를 혼합하여 이루어지는 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법.
The method according to claim 1,
The coating material is 55 to 65 weight ratio of antimony tin oxide, 0.09 to 0.1 weight ratio of hydroxy propyl cellulose, 5 to 7 weight ratio of aluminum solution, 5 to 7 weight ratio of poly (3,4-ethylenedioxythiophene) polystyrenesulfonate and a dispersion solvent Method of manufacturing a transparent conductive film for a touch panel using a bar coating, characterized in that the mixture by mixing 5 to 10 by weight.
상기 분산용매는 아세톤과 에탄올의 혼합용매인 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법.
The method according to claim 1,
The dispersion solvent is a method of manufacturing a transparent conductive film for a touch panel using a bar coating, characterized in that a mixed solvent of acetone and ethanol.
상기 바코팅단계는 3 내지 7 메시를 나타내는 코팅바를 이용하여 이루어지는 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법.
The method according to claim 1,
The bar coating step is a method of manufacturing a transparent conductive film for a touch panel using a bar coating, characterized in that using a coating bar representing 3 to 7 mesh.
상기 바코팅단계는 5 메시를 나타내는 코팅바를 이용하여 이루어지는 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법.
The method of claim 4,
The bar coating step is a method of manufacturing a transparent conductive film for a touch panel using a bar coating, characterized in that made using a coating bar representing 5 mesh.
상기 건조단계는 80 내지 90℃의 온도에서 1 내지 3분 동안 이루어지는 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법.
The method according to claim 1,
The drying step is a method for manufacturing a transparent conductive film for a touch panel using a bar coating, characterized in that made for 1 to 3 minutes at a temperature of 80 to 90 ℃.
상기 UV조사단계는 100 내지 150W의 램프를 이용하여 2 내지 4분 동안 이루어지는 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법.
The method according to claim 1,
The UV irradiation step is a method for manufacturing a transparent conductive film for a touch panel using a bar coating, characterized in that for 2 to 4 minutes using a lamp of 100 to 150W.
상기 소결단계는 80℃의 온도로 25 내지 35분 동안 이루어지는 것을 특징으로 하는 바 코팅을 이용한 터치패널용 투명전도막의 제조방법.The method according to claim 1,
The sintering step is a method for manufacturing a transparent conductive film for a touch panel using a bar coating, characterized in that made for 25 to 35 minutes at a temperature of 80 ℃.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| KR20090041243A (en) * | 2007-10-23 | 2009-04-28 | 에스케이씨 주식회사 | Membrane using composition of conductive polymers |
| KR20090049557A (en) * | 2007-11-13 | 2009-05-18 | 주식회사 엘지화학 | Coating composition for antireflection and antireflection film prepared by using the same |
| KR20090104745A (en) * | 2008-03-31 | 2009-10-06 | 스미또모 가가꾸 가부시끼가이샤 | Coating method and coating apparatus |
| KR20100036913A (en) * | 2008-09-30 | 2010-04-08 | 이펀 테크놀러지 컴퍼니, 리미티드 | Transparent conductive layered structure for a touch panel input device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20090041243A (en) * | 2007-10-23 | 2009-04-28 | 에스케이씨 주식회사 | Membrane using composition of conductive polymers |
| KR20090049557A (en) * | 2007-11-13 | 2009-05-18 | 주식회사 엘지화학 | Coating composition for antireflection and antireflection film prepared by using the same |
| KR20090104745A (en) * | 2008-03-31 | 2009-10-06 | 스미또모 가가꾸 가부시끼가이샤 | Coating method and coating apparatus |
| KR20100036913A (en) * | 2008-09-30 | 2010-04-08 | 이펀 테크놀러지 컴퍼니, 리미티드 | Transparent conductive layered structure for a touch panel input device |
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