KR101333384B1 - Cushion sheet for protecting touch screen panel and preparation method thereof - Google Patents
Cushion sheet for protecting touch screen panel and preparation method thereof Download PDFInfo
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- KR101333384B1 KR101333384B1 KR1020130028466A KR20130028466A KR101333384B1 KR 101333384 B1 KR101333384 B1 KR 101333384B1 KR 1020130028466 A KR1020130028466 A KR 1020130028466A KR 20130028466 A KR20130028466 A KR 20130028466A KR 101333384 B1 KR101333384 B1 KR 101333384B1
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- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/36—After-treatment
- C08J9/365—Coating
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- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/18—Manufacture of films or sheets
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- C08J7/04—Coating
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- C08J7/00—Chemical treatment or coating of shaped articles made of macromolecular substances
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- C08J7/044—Forming conductive coatings; Forming coatings having anti-static properties
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/25—Plastics; Metallised plastics based on macromolecular compounds obtained otherwise than by reactions involving only carbon-to-carbon unsaturated bonds
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/22—Plastics; Metallised plastics
- C09J7/26—Porous or cellular plastics
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/20—Adhesives in the form of films or foils characterised by their carriers
- C09J7/29—Laminated material
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- C09J7/00—Adhesives in the form of films or foils
- C09J7/30—Adhesives in the form of films or foils characterised by the adhesive composition
- C09J7/38—Pressure-sensitive adhesives [PSA]
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1313—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells specially adapted for a particular application
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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
- G06F3/0412—Digitisers structurally integrated in a display
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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
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2475/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2475/04—Polyurethanes
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2203/00—Applications of adhesives in processes or use of adhesives in the form of films or foils
- C09J2203/318—Applications of adhesives in processes or use of adhesives in the form of films or foils for the production of liquid crystal displays
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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
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J2475/00—Presence of polyurethane
- C09J2475/006—Presence of polyurethane in the substrate
Abstract
Description
본 발명은 터치 스크린 패널 보호용 쿠션 시트 및 이의 제조방법에 관한 것으로, 보다 상세하게는 우수한 도전성으로 인한 우수한 전자파 차폐 기능, 접지 기능, EMI, ESD 기능, 충격 흡수 기능, 방진 특성, 조립밀착성 기능, 차광성, 상하 통전성을 갖는 터치 스크린 패널 보호용 쿠션 시트 및 이의 제조방법에 관한 것이다.
The present invention relates to a cushioning sheet for protecting a touch screen panel and a method of manufacturing the same, and more particularly, to excellent electromagnetic shielding, grounding, EMI, ESD, shock absorbing, dustproof, assembly adhesion, The present invention relates to a cushioning sheet for protecting a touch screen panel having light properties and vertical conduction, and a method of manufacturing the same.
소형화, 경량화 등의 추세를 보이고 있는 PC나 휴대폰, 디지털 기기의 급속한 보급은 직장이나 가정에 까지도 전자파의 홍수를 초래하고 있어, 일렉트로닉스 산업의 발전과 함께 전자파 장해의 위협이 더욱 높아지고 있다.The rapid dissemination of PCs, mobile phones, and digital devices, which are showing trends in miniaturization and light weight, has caused a flood of electromagnetic waves even at work and at home, and the threat of electromagnetic interference is increasing with the development of the electronics industry.
이러한 전자파 장해는 컴퓨터의 오동작에서부터 공장의 전소 사고에 이르기까지 다양하게 나타나고 있으며, 나아가 전자파가 인체에 부정적인 영향을 미치는 연구 결과가 속속 발표되면서 건강에 대한 우려와 관심도 높아지고 있는 가운데, 선진국을 중심으로 전자파 장해에 대한 규제 강화와 대책 마련에 부심하고 있는 실정이다. 따라서 다양한 전자전기 제품에 대한 전자파 차폐 기술은 일렉트로닉스 산업의 핵심 기술 분야로 떠오르고 있다.The electromagnetic disturbances vary from computer malfunctions to plant burnout accidents. Furthermore, as research results in which electromagnetic waves negatively affect the human body have been published, concern and concern about health are increasing. The situation is focused on strengthening regulations and preparing countermeasures against obstacles. Therefore, electromagnetic shielding technology for various electronic and electrical products has emerged as a core technology field of the electronics industry.
금속은 전자파 차폐에 사용되는 가장 일반적인 재료이지만, 재료에 따라서 가격이 비싸고 무게가 무겁다는 단점이 있다. 섬유강화 복합재료의 경우 비강도, 비강성, 굴곡성, 경량성 등이 우수하여 전자 장치의 하우징 재료로 많이 사용되고 있지만 고분자 재료가 모재인 복합재료는 전기적으로 절연체이기 때문에 전자파 차폐효과는 거의 없다.Metal is the most common material used for shielding electromagnetic waves, but the disadvantage is that the material is expensive and heavy. Fiber-reinforced composite materials have been widely used as housing materials for electronic devices because of their superior strength, specific rigidity, flexibility, and light weight. However, composite materials whose polymer material is a base material have almost no electromagnetic shielding effect.
한국등록특허 제1145009호에서는 복수의 평판표시패널들을 삽입하기 위한 복수의 홈들이 내측에 형성되고, 상기 홈들 사이에 형성되어 상기 평판표시패널의 삽입을 가이드하고, 상기 평판표시패널을 지지하는 리브들을 갖는 하면부와, 내측이 상기 하면부의 내측과 실질적으로 동일한 형상을 갖고서, 상기 하면부의 양단에서 상방으로 일정 길이 만큼 연장된 양측부를 구비한 하부 완충부재; 및 상기 하부 완충부재의 하면부와 대칭되는 상면부와, 상기 하부 완충부재의 양측부와 대칭되는 양측부를 구비하고, 상기 하부 완충부재의 내측과 실질적으로 동일한 형상으로 형성된 상부 완충부재를 포함한 평판표시패널 보호용 완충재를 개시하고 있다.In Korean Patent No. 1145009, a plurality of grooves for inserting a plurality of flat panel display panels are formed in the inner side, and formed between the grooves to guide the insertion of the flat panel display panel and support ribs for supporting the flat panel display panel. A lower buffer member having a lower surface portion and an inner side thereof having substantially the same shape as an inner side of the lower surface portion, and having both sides extending upwardly from both ends of the lower surface portion by a predetermined length; And an upper buffer member which is symmetrical with a lower surface of the lower buffer member, and an upper buffer member which has both sides symmetrical with both sides of the lower buffer member, and an upper buffer member formed in substantially the same shape as the inner side of the lower buffer member. Disclosed is a shock absorber for protecting a panel.
한국공개특허 제2008-0023641호에 개시된 하드 코팅층을 갖는 필름 기재로 이루어지는 하드 코팅 필름에 점착제층이 마련된 보호 점착 필름으로서, 상기 필름 기재의 탄성률이 3∼7GPa, 두께가 38∼100㎛이고 상기 하드 코팅층의 두께가 5∼25㎛이고, 상기 하드 코팅 필름의 하드 코팅층 표면의 연필경도가 3H 이상이고, 상기 점착제층의 두께가 5∼20㎛이고, 총두께가 60∼150㎛이고, 상기 점착제층의 주파수 1Hz에서의 동적점탄성 스펙트럼에 있어서의 80℃에서의 저장탄성률이 1.0×105 Pa 이상인 것을 특징으로 하는 보호 점착 필름을 개시하고 있다.A protective adhesive film provided with a pressure-sensitive adhesive layer on a hard coating film made of a film substrate having a hard coating layer disclosed in Korean Patent Laid-Open No. 2008-0023641, wherein the film substrate has an elastic modulus of 3 to 7 GPa, a thickness of 38 to 100 μm, and the hard The thickness of a coating layer is 5-25 micrometers, the pencil hardness of the hard-coat layer surface of the said hard coat film is 3H or more, the thickness of the said adhesive layer is 5-20 micrometers, the total thickness is 60-150 micrometers, and the said adhesive layer The storage elastic modulus in 80 degreeC in the dynamic-viscoelastic spectrum at the frequency of 1 Hz is 1.0 * 10 <5> Pa or more, The protective adhesive film characterized by the above-mentioned.
기존의 전자파 차폐 쿠션재는 우레탄폼만 장착할 경우, 끊어지거나 늘어나는 현상때문에 우레탄폼에 습식도금을 하기 위하여 도금 설비에 장착을 위한 지지층으로 PET 필름을 부착시킨다. 그리고 도금을 하는데 있어서, 직접 도금에는 밀착력 및 도전층에 취약하여 스퍼터링 또는 진공증착을 한 후, 도금을 실시하여 도전층을 형성하였다.Existing electromagnetic shielding cushioning material is attached to the PET film as a support layer for mounting on the plating equipment in order to wet the urethane foam due to the breakage or elongation phenomenon when only the urethane foam is mounted. In plating, direct plating is vulnerable to adhesion and a conductive layer, and then sputtered or vacuum deposited, followed by plating to form a conductive layer.
하지만 이 방식은 PET 필름에 스폰지 탄성체 층을 적층시, 불량제품이 많이 발생하는 현상으로 도금작업 후 불량발생률이 상당히 높다. 또한 지지층인 PET 필름에는 습식도금이 어려워, 스퍼터링 또는 진공증착을 시행하는데 단가가 상당히 상승하는 문제점이 있다.
However, this method is a phenomenon in which a lot of defective products occur when laminating a sponge elastomer layer on the PET film, the failure rate after plating is considerably high. In addition, the PET film as the support layer is difficult to wet plating, there is a problem that the unit cost is significantly increased when performing sputtering or vacuum deposition.
본 발명자들은 상술한 문제점을 해결하고자 연구를 거듭하였고, 그 결과 제조비용이 절감되고, 모바일, OLED TV, 플렉시블 디스플레이 등에 충격흡수 및 전자파 노이즈 접지, ESD 목적으로 활용될 수 있는 터치 스크린 패널 보호용 쿠션 시트를 개발하여 본 발명을 완성하기에 이르렀다.The present inventors have repeatedly studied to solve the above problems, and as a result, the manufacturing cost is reduced, and the cushion sheet for protecting the touch screen panel that can be used for shock absorption, electromagnetic noise grounding, ESD, etc. for mobile, OLED TV, flexible display, etc. It was developed to complete the present invention.
본 발명의 목적은 일체형 박막쿠션에 타공 공정이 필요 없는 상하관통미세 통로구조를 갖는 쎄미오픈셀(Semi-open cell) 형태의 특수 내부미세 구조 및 일면에 기재층이 형성되어 쿠션폼과 기재가 일체형 구조를 갖도록 우레탄 수지 또는 아크릴 수지 펫트 메쉬 혹은 펫트 페브릭 기재 일면에 발포하여 균일한 통기성의 박막이 형성된 상하통전 박막 쿠션 및 상하통전 구조로 된 박막쿠션과 폴리에스테르 메쉬 원단 혹은 폴리에스테르 페브릭과 합지하여 제조되는 합지형의 상하통전 박막쿠션; 폴리에스테르 메쉬 또는 폴리에스테르 페브릭; 무기재 블랙 도전 점착 테이프 및 이형지를 포함하는 터치 스크린 패널 보호용 쿠션 시트 및 이의 제조방법을 제공하기 위한 것이다.
An object of the present invention is to form a special internal microstructure of the semi-open cell (Semi-open cell) having a vertical through-hole passage structure that does not require a perforation process in the integrated thin film cushion and the substrate layer is formed on one side, the cushion foam and the substrate is integrated Manufactured by laminating with urethane resin or acrylic resin PET mesh or PET fabric fabric to have a structure, the upper and lower conducting thin film cushions having a uniformly breathable thin film, and the upper and lower conducting thin film cushions and polyester mesh fabric or polyester fabric Laminated vertical vertical thin film cushion; Polyester mesh or polyester fabric; An object of the present invention is to provide a cushioning sheet for protecting a touch screen panel including an inorganic black conductive adhesive tape and a release paper, and a manufacturing method thereof.
상기 목적을 달성하기 위하여, 본 발명은 상하통전 박막 쿠션; 폴리에스테르 메쉬 또는 폴리에스테르 페브릭; 및 무기재 블랙 도전 점착 테이프를 포함하는 터치 스크린 패널 보호용 쿠션 시트를 제공한다.In order to achieve the above object, the present invention is a vertical conductive thin film cushion; Polyester mesh or polyester fabric; And an inorganic black conductive adhesive tape.
또한, 본 발명은 우레탄 혹은 아크릴 수지를 발포하여 미세상하관통 통로 구조를 갖는 상하통전 박막 쿠션을 제조하는 단계; 상기 상하통전 박막 쿠션에 폴리에스테르 메쉬 또는 폴리에스테르 페브릭을 합지시키는 단계; 상기 폴리에스테르 메쉬 또는 폴리에스테르 페브릭이 합지된 상하통전 박막 쿠션에 습식 도금을 수행하는 단계; 및 상기 폴리에스테르 메쉬 또는 폴리에스테르 페브릭이 합지된 상하통전 박막 도전쿠션의 일면 또는 양면에 무기재 블랙 도전 점착 테이프를 형성하는 단계를 포함하는 터치 스크린 패널 보호용 쿠션 시트의 제조방법을 제공한다.In addition, the present invention comprises the steps of preparing a vertical conductive thin film cushion having a micro-vertical passage passage structure by foaming a urethane or acrylic resin; Laminating a polyester mesh or polyester fabric to the vertical conductive thin film cushion; Performing wet plating on upper and lower conductive thin film cushions on which the polyester mesh or polyester fabric is laminated; And forming an inorganic black conductive adhesive tape on one or both surfaces of the vertically conductive thin film conductive cushion on which the polyester mesh or polyester fabric is laminated.
본 발명에서 상기 상하통전 박막 쿠션으로는 우레탄 혹은 아크릴 수지를 발포하여 제조된 박막쿠션을 사용할 수 있다.
In the present invention, the vertical conductive thin film cushion may use a thin film cushion prepared by foaming urethane or acrylic resin.
본 발명은 별도 상하통전을 위한 타공 공정없이 습식 도금하였을 때 표면 및 상하통전성이 균일하고 우수하며, 타공 공정이 없으므로 공정을 단축시켜 제조 비용을 절감할 수 있으며, 모바일, OLED TV, 플렉시블 디스플레이 등에 충격흡수 및 전자파 노이즈 접지, ESD 목적으로 활용될 수 있는 터치 스크린 패널 보호용 쿠션 시트를 제공할 수 있다.
The present invention is uniform and excellent surface and top conduction when wet plating without a separate punching process for up and down energization, and can reduce the manufacturing cost by shortening the process because there is no punching process, impact on mobile, OLED TV, flexible display, etc. It is possible to provide a cushioning sheet for touch screen panel protection that can be utilized for absorption and electromagnetic noise grounding and ESD purposes.
도 1 내지 3은 본 발명의 각기 다른 실시양태에 따른 터치 스크린 패널 보호용 쿠션 시트의 단면도를 개략적으로 나타낸다.
도 4는 본 발명에 따른 도전성 박막쿠션시트의 차폐율을 측정한 결과를 나타내는 그래프이다.1 to 3 schematically show a cross-sectional view of a cushioning sheet for protecting a touch screen panel according to different embodiments of the present invention.
Figure 4 is a graph showing the results of measuring the shielding rate of the conductive thin film cushion sheet according to the present invention.
이하, 본 발명에 따른 터치 스크린 패널 보호용 쿠션 시트의 제조방법을 상세히 설명한다.
Hereinafter, a method of manufacturing a cushioning sheet for protecting a touch screen panel according to the present invention will be described in detail.
본 발명은 상하통전 박막 쿠션; 폴리에스테르 메쉬 또는 폴리에스테르 페브릭; 및 무기재 블랙 도전 점착 테이프를 포함하는 터치 스크린 패널 보호용 쿠션 시트는 하기의 방법에 따라 제조될 수 있다.The present invention is a vertical conductive thin film cushion; Polyester mesh or polyester fabric; And an inorganic black conductive adhesive tape may be manufactured according to the following method.
우선, 통기성이 우수하도록 쎄미오픈셀(Semi-open cell) 형태의 내부미세구조 및 Z축 방향의 미세상하관통 통로구조를 갖도록 우레탄수지 혹은 아크릴 수지로 발포하여 균일한 통기성의 상하통전 박막 쿠션을 제조한다.First, foaming is made of urethane resin or acrylic resin to have a semi-open cell type internal fine structure and a Z-axis micro-vertical passage structure for excellent air permeability. do.
본 발명에서 쎄미오픈셀은 쿠션 시트 표면 및 내부구조 상에 육안으로 거의 식별이 안되는 개방형 기공들이 약 30 % 정도 분포되어 있는 것을 의미하며, Z축 방향 이라고 하는 것은 기공이 상하로 관통되어 있는 입체 구조를 의미한다.In the present invention, the semi-open cell means that about 30% of open pores which are almost invisible to the naked eye are distributed on the cushion sheet surface and internal structure, and the Z-axis direction is a three-dimensional structure in which pores penetrate up and down. Means.
다음으로 상기 상하통전 박막 쿠션에 폴리에스테르 메쉬 또는 폴리에스테르 페브릭과 합지시킨다.Next, the upper and lower conductive thin film cushion is laminated with a polyester mesh or polyester fabric.
본 발명에서는 상기 상하통전 박막 쿠션과 폴리에스테르 메쉬 또는 폴리에스테르 페브릭을 케미칼 본딩에 의한 합지에 의해 결합시켜 기재로서 사용한다.In the present invention, the upper and lower conductive thin film cushions and the polyester mesh or polyester fabric are bonded to each other by chemical bonding to be used as a substrate.
이후, 별도 상하통전을 위한 타공 공정없이 습식 도금하여 표면 및 상하통전성이 우수한 박막 쿠션을 제조한다.Thereafter, wet plating is performed without a perforation process for up and down energization, thereby manufacturing a thin film cushion having excellent surface and top and bottom conduction characteristics.
상기 상하통전 박막 쿠션에 구리층 및 니켈층을 습식 도금에 의해 형성한다. 보다 상세하게는 발포된 우레탄 쿠션폼 또는 아크릴 쿠션폼을 80℃에서 가성소다 10 내지 15 중량% 농도의 에칭조에 통과시키며 이후 수세조를 거친다. 이후, 50 내지 70℃ 염산 15 내지 25 중량% 농도의 수용액 하에서 중화시키고 수세한다. 이후, 염화 팔라듐과 염화 주석의 혼합액으로 구성된 팔라듐 촉매조를 통과시켜 원단에 팔라듐 이온을 흡착시키고 수세한다. 이후, 팔라듐 이온과 함께 흡착되어 있는 주석 이온을 제거하기 위하여 15 내지 20 중량% 황산 활성화조에 침적하고 수세하여 원단에 팔라듐 이온만을 형성시킨다.A copper layer and a nickel layer are formed on the vertical conductive thin film cushion by wet plating. In more detail, the foamed urethane cushion foam or acrylic cushion foam is passed through an etching bath at a concentration of 10 to 15% by weight of caustic soda at 80 ° C., followed by a washing bath. Thereafter, the mixture is neutralized and washed with water under an aqueous solution of 15 to 25% by weight of hydrochloric acid at 50 to 70 캜. Thereafter, a palladium catalyst bath composed of a mixture of palladium chloride and tin chloride is passed through to adsorb palladium ions on the fabric and washed with water. Thereafter, in order to remove tin ions adsorbed together with the palladium ions, it is deposited in a 15 to 20% by weight sulfuric acid activation tank and washed with water to form only palladium ions in the fabric.
이상과 같이 우레탄 쿠션폼 혹은 아크릴 쿠션폼에 형성된 팔라듐 촉매 위에서 도전성 금속이 화학적으로 성장하게 된다면 더욱 안정적으로 도금 처리가 가능한 효과를 얻을 수 있다. 또한, 전도성 금속 도금 이후 이물질에 의한 오염 방지 및 내식성 향상을 위해 수용성 폴리우레탄으로 마이크로 그라비아 코팅 또는 콤마롤 코팅에 의한 후처리를 부가시킴으로써 비용 절감에 유리하며, 크게 향상된 전기 전도성에도 악영향을 미치지 않게 할 수 있다.As described above, if the conductive metal is chemically grown on the palladium catalyst formed on the urethane cushion foam or the acrylic cushion foam, the plating process may be more stably obtained. In addition, after the conductive metal plating to prevent contamination by foreign substances and to improve the corrosion resistance, it is advantageous to reduce the cost by adding a post-treatment by microgravure coating or comma roll coating with water-soluble polyurethane, and do not adversely affect the greatly improved electrical conductivity. Can be.
상기 화학적 계면 처리 공정 이후에, 도전성 금속의 도금 과정이 진행된다.After the chemical interface treatment process, the plating process of the conductive metal is performed.
본 발명에서 전해 또는 무전해 도금층은 구리, 니켈, 금, 은, 주석, 알루미늄, 서스 및 코발트로 이루어진 군으로부터 선택되는 1종 이상의 금속이 1이상의 층을 형성하여 이루어질 수 있다.In the present invention, the electrolytic or electroless plating layer may be formed by forming at least one layer of at least one metal selected from the group consisting of copper, nickel, gold, silver, tin, aluminum, sus and cobalt.
본 발명의 일 실시형태에 있어서, 전해 또는 무전해 도금층은 구리층을 형성하고 구리층 위해 니켈층을 형성하여 구성될 수 있다.In one embodiment of the present invention, the electrolytic or electroless plating layer may be formed by forming a copper layer and forming a nickel layer for the copper layer.
보다 상세하게는 도전성 금속의 도금은 바람직하게는 전해, 무전해 중 어느 하나의 방법, 더욱 바람직하게는 무전해 방식으로 수행한다. 예를 들면, 구리 도금을 위해 황산구리 3.5 내지 4.5g/ℓ, 가성소다 8 내지 12g/ℓ 및 포르말린 5.5 내지 6.0g/ℓ를 혼합한 무전해 구리 도금조에 침적하여 구리 금속을 석출시켜 구리 도금층을 2차로 형성시킨 후 수세한다. 구리는 산화가 빨리 진행되기 때문에 산화 방지를 위해 황산니켈 25 내지 35g/ℓ, 차아인산소다 15 내지 25g/ℓ 및 구연산소다 35 내지 45g/ℓ를 혼합한 무전해 니켈 도금조에 침적하여 니켈 도금층을 2차로 형성시키고 수세하는 방법이 있으나, 이에 한정되는 것은 아니다.More specifically, the plating of the conductive metal is preferably performed by any one of electrolytic and electroless methods, more preferably electrolessly. For example, for copper plating, a copper metal is deposited by depositing a copper metal by depositing an electroless copper plating bath containing 3.5 to 4.5 g / l copper sulfate, 8 to 12 g / l caustic soda and 5.5 to 6.0 g / l formalin. Wash with water after forming with tea. Since copper is rapidly oxidized, it is deposited in an electroless nickel plating bath containing 25 to 35 g / l nickel sulfate, 15 to 25 g / l sodium hypophosphite and 35 to 45 g / l sodium citrate to prevent oxidation. There is a method of forming and washing with a car, but is not limited thereto.
본 발명에 따른 터치 스크린 패널 보호용 쿠션 시트에서 상하통전 박막 쿠션으로는 우레탄 혹은 아크릴 수지를 발포하여 통기성이 우수하도록 상하관통미세 통로구조를 갖는 박막 쿠션을 사용한다. 이와 같이 상하관통미세 통로구조를 갖는 박막 쿠션을 폴리에스테르 메쉬 또는 폴리에스테르 페브릭과 합지하여 사용함으로써 종래와 같이 상하통전을 위한 타공 공정이 필요하지 않아 제조 비용 및 공정이 단축될 수 있으며 상하도전성 및 표면도전성이 매우 균일하고 우수하다.In the cushioning sheet for protecting the touch screen panel according to the present invention, a thin-film cushion having a vertical passage fine passage structure is used as the upper and lower conductive thin film cushions so as to be excellent in breathability by foaming urethane or acrylic resin. Thus, by using a thin film cushion having a vertical passage fine passage structure in combination with a polyester mesh or polyester fabric, it does not require a perforation process for vertical conduction as in the prior art, thereby reducing the manufacturing cost and process, and up and down conductivity and surface The conductivity is very uniform and excellent.
또한, 본 발명에서는 상기 상하통전 박막 쿠션과 폴리에스테르 메쉬 또는 폴리에스테르 페브릭을 케미칼 본딩에 의해 합지시킴으로써 기존 접착테이프에 의한 합지에 비해 접착력이 우수하다.In addition, in the present invention, the upper and lower conductive thin film cushion and the polyester mesh or polyester fabric is laminated by chemical bonding, which is superior in the adhesive strength compared with the conventional adhesive tape.
다음으로, 상기 폴리에스테르 메쉬 또는 폴리에스테르 페브릭이 합지된 상하통전 박막 쿠션의 일면 또는 양면에 무기재 블랙 도전 점착 테이프를 형성한다.Next, an inorganic material black conductive adhesive tape is formed on one or both surfaces of the vertically conductive thin film cushion in which the polyester mesh or polyester fabric is laminated.
본 발명에서는 상기 폴리에스테르 메쉬 또는 폴리에스테르 페브릭이 합지된 상하통전 박막 쿠션의 일면 또는 양면에 무기재 블랙 도전 점착 테이프를 형성함으로써 도전성, 접착력, 차광성을 향상시킬 수 있다.In the present invention, by forming an inorganic material black conductive adhesive tape on one side or both sides of the upper and lower conductive thin film cushions on which the polyester mesh or polyester fabric is laminated, conductivity, adhesive force, and light shielding property can be improved.
상하통전 박막 쿠션의 일면 또는 양면에 종래와 같이 박막 도전 페브릭 원단 합지 대신 무기재 블랙 도전 점착 테이프를 사용하여 접지함으로써 ESD 기능이 우수하고 공정 손실이 최소화될 수 있다.By using an inorganic black conductive adhesive tape instead of the thin film conductive fabric fabric laminated on one side or both sides of the vertical conductive thin film cushion as in the prior art, excellent ESD function and process loss can be minimized.
본 발명에서는 윈도우 구조 및 디스플레이 BLU 모듈구조에 맞도록 무기재 타입의 블랙 도전 점착 테이프를 형상가공한다.In the present invention, the inorganic conductive black conductive adhesive tape is shaped to fit the window structure and the display BLU module structure.
본 발명의 일 실시형태에 따르면, 도 1에서와 같이 상기 폴리에스테르 메쉬(2)가 합지된 상하통전 박막 쿠션(1)의 양면에 무기재 블랙 도전 점착 테이프(3)를 형성하여 터치 스크린 패널 보호용 쿠션 시트를 형성할 수 있다.According to one embodiment of the present invention, as shown in Figure 1 by forming an inorganic material black conductive adhesive tape (3) on both sides of the upper and lower conductive thin film cushion (1) laminated with the polyester mesh (2) for the touch screen panel protection The cushion sheet can be formed.
본 발명의 다른 실시형태에 따르면, 도 2에서와 같이 상기 폴리에스테르 메쉬(2)가 합지된 상하통전 박막 쿠션(1)의 일면에 무기재 블랙 도전 점착 테이프(3)이 형성되고, 상기 무기재 블랙 도전 점착 테이프(3)에 이형지(4)를 형성하여 터치 스크린 패널 보호용 쿠션 시트를 형성할 수 있다.According to another embodiment of the present invention, as shown in FIG. 2, an inorganic material black conductive
본 발명의 또 다른 실시형태에 따르면, 도 3에서와 같이 상기 폴리에스테르 메쉬(2)가 합지된 상하통전 박막 쿠션(1)의 양면에 무기재 블랙 도전 점착 테이프(3)를 형성하고, 2개의 무기재 블랙 도전 점착 테이프(3)에 이형지(4)를 형성하여 터치 스크린 패널 보호용 쿠션 시트를 형성할 수 있다.
According to still another embodiment of the present invention, as shown in FIG. 3, the inorganic black conductive
이하, 본 발명의 이해를 돕기 위하여 바람직한 실시예를 제시하나, 하기 실시예는 본 발명을 예시하는 것일 뿐 본 발명의 범주 및 기술사상 범위 내에서 다양한 변경 및 수정이 가능함은 당업자에게 있어서 명백한 것이며, 이러한 변형 및 수정이 첨부된 특허청구범위에 속하는 것도 당연한 것이다.It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the present invention. Such variations and modifications are intended to be within the scope of the appended claims.
본 발명에 따른 쿠션 시트는 터치 스크린 패널 뿐만 아니라 디스플레이 장치 등에 적용된다.
The cushion sheet according to the present invention is applied to a display device as well as a touch screen panel.
실시예 1Example 1
200 ㎛ 두께의 폴리우레탄 발포 폼과 90 ㎛의 폴리에스테르 메쉬를 케미칼 본딩하여 메쉬 기재를 갖는 우레탄 폼시트를 얻는다. 이어서 이 탄성체층을 80℃, 12중량% 농도의 가성소다 수용액 에칭조에 통과시키고 수세한 후, 이어서 60℃, 20중량% 농도의 염산 수용액 하에서 중화시키고 수세하였다. 이어서, 상기 탄성체층을 0.8중량% 농도로 염화팔라듐과 염화주석을 혼합하여 제조한 팔라듐 촉매조를 통과시켜 팔라듐 이온을 원단에 흡착시키고 수세한 후, 18중량%의 황산 활성화조에 침적하고 수세하여 원단에 팔라듐 이온만을 형성시켰다. A 200 μm thick polyurethane foam and a 90 μm polyester mesh are chemically bonded to obtain a urethane foam sheet having a mesh substrate. Subsequently, the elastic layer was passed through a caustic soda aqueous solution etching bath at 80 ° C. and 12% by weight, washed with water, and then neutralized and washed with water at 20 ° C. and 20% by weight in aqueous hydrochloric acid. Subsequently, the elastic layer was passed through a palladium catalyst bath prepared by mixing palladium chloride and tin chloride at a concentration of 0.8% by weight, and the palladium ions were adsorbed onto the fabric, washed with water, and then immersed in an 18% by weight sulfuric acid activator and washed with fabric. Only palladium ions were formed.
이어서, 상기 탄성체층을 황산구리 4.0g/ℓ, 가성소다 10g/ℓ, 및 포르말린 6.0g/ℓ를 혼합한 무전해 구리 도금조에 침적하여 구리 금속을 석출시켜 구리 도금층을 형성시켰다. 이후, 황산니켈 25g/ℓ, 치아인산소다20g/ℓ, 및 구연산소다 40g/ℓ를 혼합한 무전해 니켈 도금조에 침적하여 니켈 도금층을 형성시켜 도전성 탄성체층을 제조하였다. 이어서, 폴리우레탄 수지를 이소프로판올 및 에탄올(50: 50의 부피비)을 포함하는 유기용매에 40중량%의 농도로 희석시켜 지문방지 및 내식성 코팅층 형성용 조성물을 제조하고, 이를 앞서 제조한 도전성 원단층 위에 1㎛의 두께로 도포한 후 건조시켜 지문방지 및 내식성 코팅층을 형성하여 본 발명에 따른 도전성 박막쿠션시트를 제조하였다.
Subsequently, the elastic layer was deposited in an electroless copper plating bath containing 4.0 g / l of copper sulfate, 10 g / l of caustic soda, and 6.0 g / l of formalin to precipitate copper metal to form a copper plating layer. Thereafter, a nickel plating layer was formed by depositing 25 g / l nickel sulfate, 20 g / l sodium phosphate, and 40 g / l sodium citrate in an electroless nickel plating bath to prepare a conductive elastomer layer. Subsequently, the polyurethane resin was diluted in an organic solvent containing isopropanol and ethanol (volume ratio of 50:50) at a concentration of 40% by weight to prepare a composition for forming an anti-fingerprint and anti-corrosion coating layer, which was prepared on the conductive fabric layer prepared above. After coating to a thickness of 1 ㎛ and dried to form an anti-fingerprint and corrosion-resistant coating layer to prepare a conductive thin film cushion sheet according to the present invention.
시험예: 차폐율 측정 시험Test Example: Shielding Rate Measurement Test
상기 실시예에서 제조된 본 발명에 따른 도전성 박막쿠션시트에 대해 ASTM D 4935에 따라 차폐율을 측정하였고 그 결과를 도 4에 나타내었다. 도 4를 참조하면 본 발명에 따른 도전성 박막쿠션시트는 70 내지 90 dB의 우수한 차폐 효과를 나타내는 것을 알 수 있다.
Prepared in the above embodiment Shielding rate of the conductive thin film cushion sheet according to the present invention was measured according to ASTM D 4935 and the results are shown in FIG. 4. Referring to Figure 4 it can be seen that the conductive thin film cushion sheet according to the present invention exhibits an excellent shielding effect of 70 to 90 dB.
1 : 상하통전 박막 쿠션 2 : 폴리에스테르 메쉬
3 : 무기재 블랙 도전 점착 테이프 4 : 이형지1: Up and down energizing thin film cushion 2: Polyester mesh
3: inorganic black conductive adhesive tape 4: release paper
Claims (12)
상기 우레탄 폼시트를 80℃, 12중량% 농도의 가성소다 수용액 에칭조에 통과시키고 수세한 후, 60℃, 20중량% 농도의 염산 수용액 하에서 중화시키는 단계;
0.8중량% 농도로 염화팔라듐과 염화주석을 혼합하여 제조한 팔라듐 촉매조에 중화된 우레탄 폼시트를 통과시켜 팔라듐 이온을 원단에 흡착시키고 수세한 후, 18중량%의 황산 활성화조에 침적하고 수세하여 원단에 팔라듐 이온만을 형성시키는 단계;
황산구리 4.0g/ℓ, 가성소다 10g/ℓ, 및 포르말린 6.0g/ℓ를 혼합한 무전해 구리 도금조에 팔라듐 이온이 형성된 우레탄 폼시트를 침적하여 구리 금속을 석출시켜 구리 도금층을 형성하고, 황산니켈 25g/ℓ, 치아인산소다 20g/ℓ, 및 구연산소다 40g/ℓ를 혼합한 무전해 니켈 도금조에 구리 도금층이 형성된 우레탄 폼시트를 침적하여 니켈 도금층을 형성하여 도전성 탄성체층을 제조하는 단계;
이소프로판올 및 에탄올(50: 50의 부피비)을 포함하는 유기용매에 수용성 폴리우레탄 수지를 40중량%의 농도로 희석한 지문방지 및 내식성 코팅층 형성용 조성물을 마이크로 그라비아 코팅 방식으로 상기 도전성 탄성체층 위에 1㎛의 두께로 도포한 후 건조시키는 단계를 포함하여 이루어지는 터치 스크린 패널 보호용 쿠션 시트의 제조방법.Chemically bonding a 200 μm-thick polyurethane foam and a 90 μm polyester mesh to produce a urethane foam sheet having a fine top and bottom passage structure;
Passing the urethane foam sheet through a caustic soda solution etching bath at 80 ° C. in a 12% by weight concentration and washing with water, and neutralizing the solution in a hydrochloric acid solution at 60 ° C. in a 20% by weight concentration;
The neutralized urethane foam sheet was passed through a palladium catalyst bath prepared by mixing palladium chloride and tin chloride at a concentration of 0.8% by weight, and the palladium ions were adsorbed onto the fabric, washed with water, and then immersed in an 18% by weight sulfuric acid activator and washed with water. Forming only palladium ions;
A urethane foam sheet in which palladium ions were formed was deposited in an electroless copper plating bath mixed with copper sulfate 4.0 g / l, caustic soda 10 g / l, and formalin 6.0 g / l to precipitate a copper metal to form a copper plating layer, and nickel sulfate 25g preparing a conductive elastomer layer by depositing a urethane foam sheet having a copper plating layer formed on an electroless nickel plating bath mixed with / l, 20 g / l sodium phosphate, and 40 g / l sodium citrate;
1 μm of the composition for forming an anti-fingerprint and anti-corrosion coating layer obtained by diluting a water-soluble polyurethane resin at a concentration of 40% by weight in an organic solvent containing isopropanol and ethanol (volume ratio of 50:50) on the conductive elastomer layer by microgravure coating. Method of manufacturing a touch screen panel protective cushion sheet comprising the step of applying a thickness of the drying after drying.
상기 우레탄 폼시트는 쎄미오픈셀 형태의 내부미세구조 및 Z축 방향의 미세상하관통 통로구조를 갖는 것을 특징으로 하는 터치 스크린 패널 보호용 쿠션 시트의 제조방법.
The method of claim 7, wherein
The urethane foam sheet is a method of manufacturing a cushioning sheet for a touch screen panel, characterized in that it has a semi-open cell-like internal microstructure and the Z-axis direction of the vertical passage.
상기 우레탄 폼시트의 일면에 모바일 윈도우 패널 및 디스플레이 BLU 모듈 구조에 적합하도록 무기재 블랙 도전 점착 테이프를 타발 형상가공하여 합지하는 가공 단계를 포함하는 것을 포함하는 터치 스크린 패널 보호용 쿠션 시트의 제조방법.
The method of claim 7, wherein
Method of manufacturing a cushioning sheet for protecting the touch screen panel comprising a processing step of laminating the inorganic black conductive adhesive tape on the surface of the urethane foam sheet suitable for the mobile window panel and display BLU module structure.
A touch screen panel to which a touch screen panel protective cushion sheet manufactured by the method for manufacturing a touch screen panel protective cushion sheet according to any one of claims 7 to 9 is applied.
A mobile device to which a touch screen panel protective cushion sheet manufactured by the method for manufacturing a touch screen panel protective cushion sheet according to any one of claims 7 to 9 is applied.
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