KR20130092112A - A two sides adhesive tape having improved impact strength for touch screen panel - Google Patents

A two sides adhesive tape having improved impact strength for touch screen panel Download PDF

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Publication number
KR20130092112A
KR20130092112A KR1020120013629A KR20120013629A KR20130092112A KR 20130092112 A KR20130092112 A KR 20130092112A KR 1020120013629 A KR1020120013629 A KR 1020120013629A KR 20120013629 A KR20120013629 A KR 20120013629A KR 20130092112 A KR20130092112 A KR 20130092112A
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South Korea
Prior art keywords
touch screen
double
sided tape
screen panel
layer
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KR1020120013629A
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Korean (ko)
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김광원
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(주)앤디포스
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Priority to KR1020120013629A priority Critical patent/KR20130092112A/en
Priority to PCT/KR2012/001349 priority patent/WO2013118933A1/en
Publication of KR20130092112A publication Critical patent/KR20130092112A/en

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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
    • 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
    • C09J7/255—Polyesters
    • 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
    • C09D133/00—Coating compositions based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Coating compositions based on derivatives of such polymers
    • C09D133/04—Homopolymers or copolymers of esters
    • C09D133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09D133/08—Homopolymers or copolymers of acrylic acid esters
    • 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
    • C09J133/00—Adhesives based on 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 only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Adhesives based on derivatives of such polymers
    • C09J133/04—Homopolymers or copolymers of esters
    • C09J133/06—Homopolymers or copolymers of esters of esters containing only carbon, hydrogen and oxygen, the oxygen atom being present only as part of the carboxyl radical
    • C09J133/08—Homopolymers or copolymers of acrylic acid esters
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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]
    • C09J7/381—Pressure-sensitive adhesives [PSA] based on macromolecular compounds obtained by reactions involving only carbon-to-carbon unsaturated bonds
    • C09J7/385—Acrylic polymers
    • 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
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/40—Adhesives in the form of films or foils characterised by release liners
    • 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
    • C09J9/00—Adhesives characterised by their physical nature or the effects produced, e.g. glue sticks
    • 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
    • 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
    • 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
    • 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
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/12—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers
    • C09J2301/124—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the arrangement of layers the adhesive layer being present on both sides of the carrier, e.g. double-sided adhesive tape
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/10—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet
    • C09J2301/16—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer
    • C09J2301/162—Additional features of adhesives in the form of films or foils characterized by the structural features of the adhesive tape or sheet by the structure of the carrier layer the carrier being a laminate constituted by plastic layers only
    • 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
    • C09J2301/00—Additional features of adhesives in the form of films or foils
    • C09J2301/30—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier
    • C09J2301/302—Additional features of adhesives in the form of films or foils characterized by the chemical, physicochemical or physical properties of the adhesive or the carrier the adhesive being pressure-sensitive, i.e. tacky at temperatures inferior to 30°C
    • 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
    • C09J2400/00—Presence of inorganic and organic materials
    • C09J2400/20—Presence of organic materials
    • C09J2400/24—Presence of a foam
    • C09J2400/243—Presence of a foam in the substrate
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer
    • 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
    • C09J2433/00—Presence of (meth)acrylic polymer
    • C09J2433/006—Presence of (meth)acrylic polymer in the substrate
    • 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
    • C09J2467/00—Presence of polyester
    • C09J2467/006—Presence of polyester in the substrate
    • 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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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Adhesive Tapes (AREA)
  • Position Input By Displaying (AREA)

Abstract

PURPOSE: A double-sided tape for a touch screen panel is provided to show excellent adhesion in a narrow contacting area, and to have excellent heat resistance, shock resistance, and reworkability. CONSTITUTION: A double-sided tape for a touch screen panel comprises: a base material layer (10) comprising an acryl foam coating layer (12) on the top surface of a polyester film (11); an adhesion layer (20) formed on the top and bottom sides of the base material layer; and a releasing layer (30) formed on the outer surface of the adhesion layer. A thickness of the base material layer is 110-155 micron. The acryl foam coating layer comprises an acrylonitrile foam material having 20-40 micron of particle size, and an acrylic binder mixed with a black pigment.

Description

내충격성이 우수한 터치스크린 패널용 양면테이프 {A TWO SIDES ADHESIVE TAPE HAVING IMPROVED IMPACT STRENGTH FOR TOUCH SCREEN PANEL}Double sided tape for touch screen panel with excellent impact resistance {A TWO SIDES ADHESIVE TAPE HAVING IMPROVED IMPACT STRENGTH FOR TOUCH SCREEN PANEL}

본 발명은 내충격성이 우수한 터치스크린 패널용 양면테이프에 관한 것으로, 더욱 상세하게는 터치스크린 패널 모듈과 액정모듈 사이에 위치하여 터치스크린 패널 모듈과 액정모듈을 견고하게 접착하며, 우수한 내열성과 내충격성을 나타내는 내충격성이 우수한 터치스크린 패널용 양면테이프에 관한 것이다.
The present invention relates to a double-sided tape for a touch screen panel having excellent impact resistance, and more particularly, is located between the touch screen panel module and the liquid crystal module to firmly bond the touch screen panel module and the liquid crystal module, and excellent heat resistance and impact resistance. It relates to a double-sided tape for a touch screen panel excellent in impact resistance.

본 발명은 내충격성이 우수한 터치스크린 패널용 양면테이프에 관한 것으로, 더욱 상세하게는 터치스크린 패널 모듈과 액정모듈 사이에 위치하여 터치스크린 패널 모듈과 액정모듈을 견고하게 접착하며, 우수한 내열성과 내충격성을 나타내는 내충격성이 우수한 터치스크린 패널용 양면테이프에 관한 것이다.The present invention relates to a double-sided tape for a touch screen panel having excellent impact resistance, and more particularly, is located between the touch screen panel module and the liquid crystal module to firmly bond the touch screen panel module and the liquid crystal module, and excellent heat resistance and impact resistance. It relates to a double-sided tape for a touch screen panel excellent in impact resistance.

최근에는 터치스크린의 화면이 대형화되는 추세에 있으며, 넓은 터치스크린을 제조하기 위해 터치스크린의 테두리에 형성되는 프레임의 두께는 점차적으로 얇게 제조되고 있다.In recent years, the screen of the touch screen has become larger in size, and in order to manufacture a wide touch screen, the thickness of the frame formed on the edge of the touch screen is gradually manufactured to be thin.

종래에 사용되던 양면테이프는 주로 폴리에스터 필름을 단일기재로 하여 제조되는데, 이러한 종래에 양면테이프는 접착력과 내열성 및 내충격성이 최근 윈도위 화면 부분이 대형화되고 있는 터치스크린에 적합하지 못한 문제점이 있었다.The double-sided tape used in the past is mainly manufactured by using a polyester film as a single base material. In the past, the double-sided tape has a problem in that the adhesive force, heat resistance, and impact resistance are not suitable for the touch screen of which the screen portion of the window is enlarged in recent years. .

또한, 아크릴 공중합체 점착제를 이용하여 터치스크린 모듈과 액정 모듈사이의 공간에 부착하려면 양면테이프의 두께가 200 내지 250 마이크로미터로 형성되어야 하는데, 전술한 것처럼 200 마이크로미터 이상의 두께를 갖는 양면테이프를 제조할 경우 종래에 방식대로 아크릴 공중합 점착제를 70 마이크로 이상의 두꺼운 두께로 코팅하게 되면 점착제의 흐름현상(찐 현상)으로 잔사가 발생하고, 터치스크린 패널 모듈 세트와 액정모듈 세트를 오염시키는 문제점이 있었다.
In addition, in order to attach to the space between the touch screen module and the liquid crystal module using an acrylic copolymer adhesive, the thickness of the double-sided tape should be formed to 200 to 250 micrometers, and as described above, a double-sided tape having a thickness of 200 micrometers or more may be manufactured. In this case, when the acrylic copolymer adhesive is coated with a thick thickness of 70 microns or more in the conventional manner, residues occur due to the flow phenomenon of the adhesive (steaming phenomenon), and there is a problem of contaminating the touch screen panel module set and the liquid crystal module set.

본 발명의 목적은 접착성이 우수하여, 터치스크린 패널 모듈 및 액정모듈과 의 접지면적이 좁은 상태에서도 탁월한 접착성을 나타내는 내충격성이 우수한 터치스크린 패널용 양면테이프를 제공하는 것이다.SUMMARY OF THE INVENTION An object of the present invention is to provide a double-sided tape for a touch screen panel having excellent impact resistance, which is excellent in adhesion and exhibits excellent adhesion even in a state where the ground area with the touch screen panel module and the liquid crystal module is narrow.

본 발명의 다른 목적은 아크릴 발포폼 코팅층이 형성되어 우수한 내충격성을 나타내며, 내열성 및 재작업성이 향상된 내충격성이 우수한 터치스크린 패널용 양면테이프를 제공하는 것이다.
Another object of the present invention is to provide a double-sided tape for a touch screen panel having an excellent impact resistance, the acrylic foam foam coating layer is formed, and improved heat resistance and reworkability.

본 발명의 목적은 폴리에스터 필름의 상부면에 아크릴 발포폼 코팅층을 형성하여 이루어진 기재층, 상기 기재층의 상부면 및 하부면에 형성되는 점착층 및 상기 점착층의 외표면에 형성되는 이형층으로 이루어지는 것을 특징으로 하는 내충격성이 우수한 터치스크린 패널용 양면테이프를 제공함에 의해 달성된다.An object of the present invention is a substrate layer formed by forming an acrylic foam foam coating layer on the upper surface of the polyester film, an adhesive layer formed on the upper and lower surfaces of the substrate layer and a release layer formed on the outer surface of the adhesive layer It is achieved by providing a double-sided tape for a touch screen panel excellent in impact resistance.

본 발명의 바람직한 특징에 따르면, 상기 기재층은 110 내지 155 마이크로 미터의 두께로 이루어지는 것으로 한다.According to a preferred feature of the invention, the base layer is to be made of a thickness of 110 to 155 micrometers.

본 발명의 더 바람직한 특징에 따르면, 상기 아크릴 발포폼 코팅층은 20 내지 40 마이크로미터의 입자크기를 갖는 아크릴로니트릴 발포체와 흑색안료가 혼합된 아크릴바인더로 이루어지는 것으로 한다.According to a more preferred feature of the present invention, the acrylic foam foam coating layer is to be made of an acrylic binder in which a black pigment and an acrylonitrile foam having a particle size of 20 to 40 micrometers.

본 발명의 더욱 바람직한 특징에 따르면, 상기 점착층은 아크릴계 감압성 점착제로 이루어지는 것으로 한다.According to a more preferred feature of the invention, the pressure-sensitive adhesive layer is made of an acrylic pressure-sensitive adhesive.

본 발명의 더욱 더 바람직한 특징에 따르면, 상기 점착층은 50 내지 70 마이크로 미터의 두께로 이루어지는 것으로 한다.
According to a further preferred feature of the invention, the pressure-sensitive adhesive layer is made of a thickness of 50 to 70 micrometers.

본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프는 터치스크린 패널 모듈 및 액정 모듈과의 접지면적이 좁은 상태에서도 탁월한 접착성을 나타낸다.The double-sided tape for a touch screen panel having excellent impact resistance according to the present invention exhibits excellent adhesion even in a state where the ground area with the touch screen panel module and the liquid crystal module is narrow.

또한, 아크릴 발포폼 코팅층이 형성되어 우수한 내충격성을 나타내며, 내열성 및 재작업성이 우수한 효과를 나타낸다.
In addition, the acrylic foam foam coating layer is formed to show excellent impact resistance, and excellent effect of heat resistance and reworkability.

도 1은 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프를 나타낸 분해사시도이다.1 is an exploded perspective view showing a double-sided tape for a touch screen panel excellent impact resistance according to 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.
Hereinafter, preferred embodiments of the present invention and physical properties of the respective components will be described in detail with reference to the accompanying drawings. However, the present invention is not limited thereto, And this does not mean that the technical idea and scope of the present invention are limited.

본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프는 폴리에스터 필름(11)의 상부면에 아크릴 발포폼 코팅층(12)을 형성하여 이루어진 기재층(10), 전술한 기재층(10)의 상부면 및 하부면에 형성되는 점착층(20) 및 전술한 점착층(20)의 외표면에 형성되는 이형층(30)으로 이루어진다.
The double-faced tape for touch screen panel excellent in impact resistance according to the present invention is formed of an acrylic foam foam coating layer 12 on the upper surface of the polyester film 11 of the base layer 10, the above-described base layer 10 The release layer 30 is formed on the outer surface of the adhesive layer 20 and the adhesive layer 20 formed on the upper and lower surfaces.

전술한 기재층(10)은 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프의 기재가 되는 층으로, 폴리에스터 필름(11)의 상부면에 아크릴 발포폼 코팅층(12)을 형성하여 이루어지는데, 아크릴이나 유리소재로 이루어진 터치스크린 윈도우 패널에 모두 적용하여 내충격성을 나타낼 수 있으며, 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프에 우수한 내열성을 부여하고, 흑색안료가 혼합 분산되어 백라이트 유닛에서 전달되는 빛이 디스플레이의 테두리에 형성된 프레임 부위로 새어나가는 것을 차단하는 역할을 한다.The above-described base layer 10 is a layer of a double-sided tape for a touch screen panel excellent in impact resistance according to the present invention, by forming an acrylic foam foam coating layer 12 on the upper surface of the polyester film 11 It can be applied to all of the touch screen window panel made of acrylic or glass material to exhibit impact resistance, impart excellent heat resistance to the double-sided tape for touch screen panel excellent in impact resistance according to the present invention, black pigment is mixed and dispersed The light transmitted from the backlight unit serves to block leakage to the frame portion formed on the edge of the display.

전술한 폴리에스터 필름(11)는 10 내지 25 마이크로미터(㎛)의 두께로 형성되며, 아크릴이나 유리소재로 이루어진 터치스크린 윈도우 패널에 모두 적용가능하며, 본 발명에 따른 터치스크린 패널용 양면테이프에 우수한 내열성과 재작업성을 부여하여, 가공 조립의 잘못으로 인한 불량 발생시에 손쉽게 양면 테이프를 제거한 후에 재조립할 수 있다.The polyester film 11 is formed to a thickness of 10 to 25 micrometers (㎛), can be applied to both touch screen window panel made of acrylic or glass material, to the double-sided tape for touch screen panel according to the present invention By providing excellent heat resistance and reworkability, it is possible to easily reassemble after removing the double-sided tape in the event of a failure due to a fault in the work assembly.

또한, 전술한 아크릴 발포폼 코팅층(12)은 100 내지 130 마이크로미터의 두께로 형성되며, 20 내지 40 마이크로미터의 입자크기를 갖는 아크릴로니트릴 발포체와 흑색안료가 혼합된 아크릴바인더로 이루어지는데, 전술한 아크릴 발포폼 코팅층(12)이 형성된 기재층(10)은 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프에 우수한 내충격성을 부여하여 외부의 충격으로부터 터치스크린 패널 모듈과 액정모듈 간의 탈락현상이 발생하지 않도록 하는 역할을 한다.In addition, the above-described acrylic foam foam coating layer 12 is formed of a thickness of 100 to 130 micrometers, made of an acrylic binder mixed with an acrylonitrile foam having a particle size of 20 to 40 micrometers and black pigment. The base layer 10 having the acrylic foam coating layer 12 formed thereon provides excellent impact resistance to the double-sided tape for touch screen panel having excellent impact resistance according to the present invention, and thus, the touch screen panel module and the liquid crystal module are dropped from the external impact. It prevents the phenomenon from happening.

이때, 전술한 기재층(10)의 두께가 110 마이크로미터 미만으로 형성되면, 양면테이프의 내열성 및 내충격성이 저하되며, 155 마이크로미터를 초과하게 되면 전술한 점착층(20)이 얇게 형성되어야 하기 때문에, 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프의 점착성능이 저하되어 터치스크린 패널 모듈과 액정모듈 간의 탈락현상이 발생하며, 제조비용이 증가된다.At this time, if the thickness of the above-described base layer 10 is less than 110 micrometers, the heat resistance and impact resistance of the double-sided tape is lowered, if it exceeds 155 micrometers, the above-mentioned adhesive layer 20 to be formed thin Therefore, the adhesive performance of the double-sided tape for a touch screen panel excellent in impact resistance according to the present invention is reduced, the dropout phenomenon occurs between the touch screen panel module and the liquid crystal module, the manufacturing cost is increased.

전술한 폴리에스터 필름(11)의 상부면에 아크릴 발포폼 코팅층(12)을 형성할 때는 아크릴 폴리올 또는 아크릴 공중합체를 사용하는 것이 바람직하다.
When forming the acrylic foam coating layer 12 on the upper surface of the polyester film 11 described above, it is preferable to use an acrylic polyol or an acrylic copolymer.

전술한 점착층(20)은 전술한 기재층(10)의 상부면 및 하부면에 형성되며, 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프가 터치스크린 패널 모듈과 액정모듈 사이에 위치하여 터치스크린 패널 모듈과 액정모듈을 접착시킬 수 있도록 하는 역할을 한다.The adhesive layer 20 is formed on the upper and lower surfaces of the substrate layer 10 described above, and the double-sided tape for the touch screen panel having excellent impact resistance according to the present invention is positioned between the touch screen panel module and the liquid crystal module. To bond the touch screen panel module to the liquid crystal module.

이때, 전술한 점착층(20)은 아크릴계 감압성 점착제(PSA, Pressure Sensitive Adhesive)로 이루어지며, 50 내지 70 마이크로미터의 두께를 갖는데, 우수한 점착성능을 나타내어 전술한 기재층(10)이 터치스크린 패널 모듈과 액정모듈 사이에 개재되었을 때, 기재층과 터치스크린 패널 모듈 및 액정모듈의 부착면적이 좁은 경우에도 우수한 접착력을 나타내어 터치스크린 패널 모듈과 액정모듈을 견고하게 접착하는 역할을 한다.At this time, the adhesive layer 20 is made of an acrylic pressure sensitive adhesive (PSA), and has a thickness of 50 to 70 micrometers, and exhibits excellent adhesive performance, so that the above-described base layer 10 is a touch screen. When interposed between the panel module and the liquid crystal module, it exhibits excellent adhesion even when the attachment area of the base layer, the touch screen panel module and the liquid crystal module is narrow, thereby firmly bonding the touch screen panel module and the liquid crystal module.

전술한 점착층(20)이 50 마이크로미터 미만으로 형성되면 점착성능이 저하되며, 70 마이크로미터를 초과하게 되면 점착제 성분이 기재층 밖으로 흘러나오는 현상이 발생하며, 점착제의 잔사율이 증가하여 재작업성이 저하된다.
When the pressure-sensitive adhesive layer 20 is formed to be less than 50 micrometers, the adhesive performance is lowered. When the pressure-sensitive adhesive layer 20 is exceeded, the pressure-sensitive adhesive component flows out of the substrate layer. The castle is degraded.

전술한 이형층(30)은 전술한 점착층(20)의 외표면에 형성되며, 60 내지 180 마이크로 미터의 두께를 갖는 실리콘 이형처리된 폴리에스터 필름 또는 실리콘 이형처리된 종이 재질의 이형지로 이루어지는데, 전술한 점착층(20)의 표면이 오염되는 것을 방지하는 역할을 한다.The release layer 30 described above is formed on the outer surface of the adhesive layer 20 described above, and is made of a release film made of silicon release-treated polyester film or silicon release-treated paper material having a thickness of 60 to 180 micrometers. , Serves to prevent the surface of the adhesive layer 20 from being contaminated.

전술한 이형층(30)은 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프를 터치스크린 패널에 적용하기 전에 양면테이프로부터 제거된다.
The above-mentioned release layer 30 is removed from the double-sided tape before applying the double-sided tape for the touch screen panel excellent in impact resistance according to the present invention to the touch screen panel.

이하에서는, 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프의 물성을 실시예를 들어 설명한다.
Hereinafter, the physical properties of the double-sided tape for a touch screen panel excellent in impact resistance according to the present invention will be described with an embodiment.

<실시예 1>&Lt; Example 1 >

12 마이크로미터의 두께를 나타내는 폴리에스터 필름의 상부면에 30 마이크로미터의 입자크기를 갖는 아크릴로니트릴 발포체와 흑색안료가 함유된 아크릴바인터로 이루어진 128 마이크로미터 두께의 아크릴 발포폼 코팅층을 형성하여 기재층을 제조하고, 전술한 기재층의 상부면 및 하부면에 60 마이크로 미터의 두께를 갖는 감압성 아크릴 점착제를 도포하여 점착층을 형성하고, 양쪽 점착층의 외표면에 실리콘처리된 폴리에스터 필름으로 이루어지며 125 마이크로미터의 두께를 나타내는 이형층을 형성하여 내충격성이 우수한 터치스크린 패널용 양면테이프를 제조하였다.
On the upper surface of the polyester film having a thickness of 12 micrometers, a 128 micrometer thick acrylic foam foam coating layer consisting of an acrylonitrile foam having a particle size of 30 micrometers and an acrylic binder containing black pigment was formed. A layer was prepared, and a pressure-sensitive acrylic pressure-sensitive adhesive having a thickness of 60 micrometers was applied to the upper and lower surfaces of the above-described substrate layer to form an adhesive layer, and a polyester film treated with silicon on the outer surfaces of both adhesive layers. A double-sided tape for a touch screen panel was manufactured by forming a release layer having a thickness of 125 micrometers.

<비교예 1>&Lt; Comparative Example 1 &

75 마이크로미터 두께의 폴리에스터 필름을 단일 기재로 사용하는 3M사의 터치스크린 패널용 양면테이프(9295B)를 구비하였다.
A double-sided tape (9295B) for 3M's touch screen panel using a 75 micrometer thick polyester film as a single substrate was provided.

<비교예 2>Comparative Example 2

75 마이크로미터 두께의 폴리에스터 필름을 단일 기재로 사용하는 3M사의 터치스크린 패널용 양면테이프(2034B)를 구비하였다.
A double-sided tape 2034B for 3M touch screen panel using a 75 micrometer thick polyester film as a single substrate was provided.

<비교예 3>&Lt; Comparative Example 3 &

120 마이크로미터 두께의 폴리에틸렌폼을 기재로 사용하는 TESA사의 터치스크린 패널용 양면테이프(62945)를 구비하였다.
A double-sided tape 62945 for TESA's touch screen panel using a 120 micrometer thick polyethylene foam as a substrate was provided.

전술한 실시예 1을 통해 제조된 내충격성이 우수한 터치스크린 양면테이프 및 비교예 1 내지 3을 통해 구비된 터치스크린 패널용 양면테이프의 점착력, 내열성(고온고습 점착력, Cleavage, Folding), Rolling ball tack test, 재작업성 및 내충격성을 측정하여 아래 표 1에 나타내었다.Adhesion, heat resistance (high temperature and humidity adhesiveness, cleavage, folding), rolling ball tack of the touch screen double-sided tape excellent in impact resistance prepared in Example 1 and the double-sided tape for touch screen panel provided through Comparative Examples 1 to 3 Test, reworkability and impact resistance were measured and shown in Table 1 below.

{단, 점착력은 제조된 각각의 양면테이프의 이형층을 제거하고 고무압착롤러를 이용하여 2kg의 하중으로 SUS(Steel Us Stainless)판에 부착하고 30분 후에 90° 또는 180°의 각도로 SUS판으로부터 박리 시 측정되는 힘을 나타낸 것이다.{However, adhesive force is removed from each layer of double-sided tape, and attached to SUS (Steel Us Stainless) plate with a load of 2kg using a rubber pressing roller, and after 30 minutes SUS plate at an angle of 90 ° or 180 ° It shows the force measured at the time of peeling from.

또한, 고온고습 점착력은 제조된 각각의 양면테이프의 이형층을 제거하고 고무압착롤러를 이용하여 2kg의 하중으로 SUS(Steel Us Stainless)판에 부착하고 80℃의 온도와 90%의 습도조건에서 72시간 방치한 후에 SUS판으로부터 박리 시 측정되는 힘을 나타낸 것이다.In addition, the high temperature and high pressure adhesive strength was removed by removing the release layer of each manufactured double-sided tape, and attached to SUS (Steel Us Stainless) plate with a load of 2kg using a rubber pressing roller, and 72 ° C at 80 ° C and 90% humidity. It shows the force measured at the time of peeling from a SUS board after leaving for time.

또한, Cleavage는 제조된 각각의 양면테이프를 1인치×1인치로 절단한 후에 이형층을 제거하고 아크릴판에 부착한 후에 250g의 추를 양면테이프에 메달아 80℃의 온도에서 추가 떨어지는 시간을 측정하여 나타내었다.In addition, Cleavage measured the time of additional dropping at a temperature of 80 ° C. by weighing 250 g of weight on a double-sided tape after cutting the double-sided tape into 1 inch × 1 inch, removing the release layer and attaching it to the acrylic plate. It is shown.

또한, Folding은 제조된 각각의 양면테이프를 가로 20mm×세로 3mm로 절단한 후에 이형층을 제거하고 폴리카보네이트와 폴리이미드 필름 사이에 위치시키고, 고무압착롤러를 이용하여 2kg의 하중 및 300mm/min의 조건으로 왕복 1회 압착하여 시편을 제조하고, 제조된 시편을 80℃의 오븐에 투입하여 시편이 폴리카보네이트와 폴리이미드 필름으로부터 박리되는 시간을 측정하여 나타내었다.In addition, after folding each produced double-sided tape to 20mm x 3mm, the folding layer is removed and placed between the polycarbonate and polyimide film, and the rubber pressing roller has a load of 2kg and 300mm / min. The test piece was prepared by pressing once and again under conditions, and the prepared test piece was put into an oven at 80 ° C. to measure the time taken for the test piece to be peeled from the polycarbonate and the polyimide film.

또한, Rolling ball tack은 Rolling ball test 기기를 이용하여 측정하되, 지름이 11mm이며, 무게가 5.6g인 쇠공을 이용하고 23±1℃ 및 50±5%의 상대습도에서 측정하였으며, 경사면의 각도는 21.3°였다.In addition, the rolling ball tack was measured using a rolling ball test device, but the diameter was 11 mm, and the weight of 5.6 g was used to measure the relative humidity at 23 ± 1 ° C. and 50 ± 5% relative humidity. 21.3 °.

또한, 재작업성은 제조된 각각의 양면테이프를 가로 2mm×세로 50mm로 절단한 후에, 절단된 양면테이프의 이형층을 제거하여 폴리카보네이트에 부착하고, 고무압착롤러를 이용하여 2kg의 하중 및 300mm/min의 조건으로 왕복 1회 압착하여 시편을 제조하고, 제조된 시편을 23℃의 온도에서 72시간 방치하고, 70℃의 온도에서 20분간 추가적으로 방치한 후에 손으로 폴리카보네이트로 양면테이프를 박리하면서 폴리카보네이트의 표면에 점착제 잔사여부 및 양면테이프가 찢어지는 빈도수를 100회 측정하여 나타내었다.In addition, the reworkability is to cut each produced double-sided tape to 2mm × 50mm, then remove the release layer of the cut double-sided tape to attach to the polycarbonate, using a rubber pressing roller with a load of 2kg and 300mm / The test piece was prepared by pressing one round trip under the condition of min, and the prepared test piece was left for 72 hours at a temperature of 23 ° C., and further left for 20 minutes at a temperature of 70 ° C., followed by peeling the double-sided tape with polycarbonate by hand. The adhesive residue on the surface of the carbonate and the frequency of tearing the double-sided tape were measured 100 times.

또한, 내충격성은 ASTM E23 NIST 공인 샤르피 펜듈럼 충격테스트 방법을 이용하여 측정하였다.}
In addition, impact resistance was measured using the ASTM E23 NIST approved Charpy Pendulum impact test method.}

<표 1>TABLE 1

Figure pat00001
Figure pat00001

위에 표 1에 나타낸 것처럼 본 발명의 실시예 1을 통해 제조된 내충격성이 우수한 터치스크린 패널용 양면테이프는 비교예 1 내지 2와 비교했을 때, 점착력과 내열성이 우수하며, 특히, 내충격성이 월등하게 우수한 것을 알 수 있다.As shown in Table 1 above, the double-faced tape for excellent touch resistance panel manufactured by Example 1 of the present invention has excellent adhesive strength and heat resistance when compared with Comparative Examples 1 to 2, and particularly, excellent impact resistance. It can be seen that excellent.

또한, 폴리에틸렌 폼을 기재로 사용한 비교예 3과 비교해도 내충격성이 월등하게 우수한 것을 알 수 있으며, 내충격성뿐만 아니라, 재작업성도 매우 우수한 것을 알 수 있다. 이때, 위 표 1에서 참조로 재작업성의 기준 수치는 점착제의 피착물에 대한 전사율을 가지고 표기한 것이다.In addition, it can be seen that the impact resistance is excellent even when compared with Comparative Example 3 using the polyethylene foam as a base material, it can be seen that not only the impact resistance but also the reworkability is very excellent. At this time, the reference value of the reworkability as shown in Table 1 above is indicated with the transfer rate for the adherend of the pressure-sensitive adhesive.

따라서, 본 발명에 따른 내충격성이 우수한 터치스크린 패널용 양면테이프를 터치스크린 패널 모듈과 액정모듈 사이에 위치시켜, 터치스크린 패널 모듈과 액정모듈을 접착하게 되면, 접착면적이 좁은 경우에도 우수한 점착력을 나타낼 뿐만 아니라, 내열성 및 내충격성이 우수하여, 터치스크린에서 발생하는 열이나 외부의 충격으로부터 쉽게 파손되지 않는 효과를 나타낸다.
Therefore, when the double-sided tape for a touch screen panel having excellent impact resistance according to the present invention is placed between the touch screen panel module and the liquid crystal module, and the touch screen panel module and the liquid crystal module are adhered to each other, even when the adhesion area is narrow, excellent adhesion is achieved. In addition to excellent heat resistance and impact resistance, it does not easily break from heat generated from the touch screen or external impact.

10 ; 기재층
11 ; 폴리에스터 필름
12 ; 아크릴 발포폼 코팅층
20 ; 점착층
30 ; 이형층10; The substrate layer
11; Polyester film
12; Acrylic foam coating layer
20; Adhesive layer
30; Heterogeneous layer

Claims (5)

폴리에스터 필름의 상부면에 아크릴 발포폼 코팅층을 형성하여 이루어진 기재층;
상기 기재층의 상부면 및 하부면에 형성되는 점착층; 및
상기 점착층의 외표면에 형성되는 이형층;으로 이루어지는 것을 특징으로 하는 내충격성이 우수한 터치스크린 패널용 양면테이프.
A base layer formed by forming an acrylic foam foam coating layer on an upper surface of the polyester film;
An adhesive layer formed on upper and lower surfaces of the base layer; And
A double-sided tape for excellent touch resistance panel, characterized in that consisting of; a release layer formed on the outer surface of the adhesive layer.
청구항 1에 있어서,
상기 기재층은 110 내지 155 마이크로 미터의 두께로 이루어지는 것을 특징으로 하는 내충격성이 우수한 터치스크린 패널용 양면테이프.
The method according to claim 1,
The base layer is a double-sided tape for excellent impact resistance, characterized in that the thickness of 110 to 155 micrometers.
청구항 1에 있어서,
상기 아크릴 발포폼 코팅층은 20 내지 40 마이크로미터의 입자크기를 갖는 아크릴로니트릴 발포체와 흑색안료가 혼합된 아크릴바인더로 이루어지는 것을 특징으로 하는 내충격성이 우수한 터치스크린 패널용 양면테이프.
The method according to claim 1,
The acrylic foam foam coating layer is a double-sided tape for excellent impact resistance, characterized in that the acrylonitrile foam having a particle size of 20 to 40 micrometers and an acrylic binder mixed with a black pigment.
청구항 1에 있어서,
상기 점착층은 아크릴계 감압성 점착제로 이루어지는 것을 특징으로 하는 내충격성이 우수한 터치스크린 패널용 양면테이프.
The method according to claim 1,
The pressure-sensitive adhesive layer is a double-sided tape for a touch screen panel excellent impact resistance, characterized in that consisting of an acrylic pressure-sensitive adhesive.
청구항 1에 있어서,
상기 점착층은 50 내지 70 마이크로 미터의 두께로 이루어지는 것을 특징으로 하는 내충격성이 우수한 터치스크린 패널용 양면테이프.The method according to claim 1,
The adhesive layer is a double-sided tape for a touch screen panel excellent impact resistance, characterized in that consisting of a thickness of 50 to 70 micrometers.
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