KR101230035B1 - Light blocking double-faced tape in white and black, and method of manufacturing thereof - Google Patents

Light blocking double-faced tape in white and black, and method of manufacturing thereof Download PDF

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KR101230035B1
KR101230035B1 KR1020120047571A KR20120047571A KR101230035B1 KR 101230035 B1 KR101230035 B1 KR 101230035B1 KR 1020120047571 A KR1020120047571 A KR 1020120047571A KR 20120047571 A KR20120047571 A KR 20120047571A KR 101230035 B1 KR101230035 B1 KR 101230035B1
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South Korea
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layer
light
pet
white
shielding
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KR1020120047571A
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Korean (ko)
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윤창식
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(주)남경하이테크
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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
    • C09J7/29—Laminated material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • 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
    • C09J7/28—Metal sheet
    • 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]
    • 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
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • 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
    • C09J2301/40—Additional features of adhesives in the form of films or foils characterized by the presence of essential components

Abstract

PURPOSE: A light blocking double-sided tape is provided to obtain thinner thickness than conventional white and black light blocking double-sided tapes, and to obtain a pure white color. CONSTITUTION: A light blocking double-sided tape comprises: a first PET(polyethylene terephthalate) layer(102); a first light blocking printed layer(106) which is formed on one side of the first PET layer, and manufactured by white ink; a second PET layer(104); a second light blocking printed layer(108) which is formed on one side of the second PET layer, and manufactured by black ink; a metal layer(110); a first adhesive layer(112) for attaching the first light blocking layer to the metal layer; a second adhesive layer(114) for attaching the second light blocking layer to the metal layer; a first adhering layer(116) which is attached to the exposed area of the first PET layer; and a second adhering layer(118) which attached to the exposed area of the second PET layer.

Description

백색 및 흑색 양면 차광 테이프 및 그 제조 방법 {Light blocking double-faced tape in white and black, and method of manufacturing thereof}White and black double sided light shielding tape and manufacturing method thereof {Light blocking double-faced tape in white and black, and method of manufacturing according}

본 발명은 핸드폰, PDA, 노트북 컴퓨터와 같은 각종 휴대용 전자기기에 사용되는 차광 테이프에 관한 것으로서, 더욱 상세하게는 백색 및 흑색 양면 차광 테이프에 관한 것이다.
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to light shielding tapes for use in various portable electronic devices such as mobile phones, PDAs, notebook computers, and more particularly, to white and black double sided light shielding tapes.

근래, 핸드폰(Mobile Phone), PDA, 노트북 컴퓨터와 같은 각종 휴대용 전자기기가 발전함에 따라 이에 적용할 수 있는 경박단소용의 평판표시장치(Flat Panel Display Device)에 대한 요구가 점차 증대되고 있다. 이러한 평판표시장치로는 LCD(Liquid Crystal Display), PDP(Plasma Display Panel), FED(Field Emission Display), VFD(Vacuum Fluorescent Display) 등이 활발히 연구되었지만, 양산화 기술, 구동수단의 용이성, 고화질의 구현, 대면적 화면의 실현이라는 이유로 인해 현재에는 액정표시소자(LCD)가 주로 각광을 받고 있다.2. Description of the Related Art In recent years, various portable electronic devices such as a mobile phone, a PDA, and a notebook computer have been developed. Accordingly, there is a growing need for a flat panel display device for a light and small-sized flat panel display device. As such flat panel display devices, a liquid crystal display (LCD), a plasma display panel (PDP), a field emission display (FED), and a vacuum fluorescent display (VFD) have been actively studied. However, mass production technology, ease of driving means, , Liquid crystal display devices (LCDs) are mainly receiving the spotlight because of realization of a large-sized screen.

상기 액정표시소자는 투과형 표시소자로서, 액정분자의 굴절률 이방성에 의해 액정층을 투과하는 광의 양을 조절함으로써 원하는 화상을 화면상에 표시한다. 따라서, 액정표시소자에서는 화상의 표시를 위해 액정층을 투과하는 광원인 백라이트(back light)가 설치된다. 일반적으로 백라이트는 크게 2종류로 구분될 수 있다.The liquid crystal display element is a transmissive display element and displays a desired image on the screen by adjusting the amount of light transmitted through the liquid crystal layer by refractive index anisotropy of liquid crystal molecules. Therefore, in a liquid crystal display element, a back light, which is a light source that transmits the liquid crystal layer for displaying an image, is provided. Generally, the backlight can be roughly divided into two types.

첫째는 램프가 액정패널의 측면에 설치되어 액정층에 광을 제공하는 측면형 백라이트이고 둘째는 램프가 액정패널의 하부에서 직접 광을 제공하는 직하형 백라이트이다.The first is a side-view backlight that is installed on the side of the liquid crystal panel to provide light to the liquid crystal layer, and the second is a direct-type backlight that provides light directly below the liquid crystal panel.

측면형 백라이트는 액정패널의 측면에 설치되어 반사판과 도광판을 통해 액정층을 광을 공급할 수 있다. 따라서, 두께를 얇게 할 수 있게 되므로, 얇은 두께의 표시장치가 요구되는 노트북 등에 주로 사용된다.The side-type backlight is provided on the side surface of the liquid crystal panel and can supply light to the liquid crystal layer through the reflection plate and the light guide plate. Therefore, since the thickness can be made thinner, it is mainly used for a notebook or the like requiring a thin display device.

그러나, 측면형 백라이트는 광을 발광하는 램프가 액정패널의 측면에 위치하므로 대면적의 액정패널에 적용하기 어려울 뿐만 아니라 도광판을 통해 광이 공급되므로 고휘도를 얻기 어렵게 된다. 따라서, 근래 각광받고 있는 대면적의 LCD TV용 액정패널에는 적합하지 않다는 문제가 있었다.However, the side-type backlight is difficult to apply to a large-area liquid crystal panel because the lamp that emits light is located on the side surface of the liquid crystal panel, and light is supplied through the light guide plate. Therefore, there has been a problem in that it is not suitable for large-area liquid crystal panel for LCD TV, which has recently been spotlighted.

직하형 백라이트는 램프로부터 발광된 광이 직접 액정층에 공급되므로 대면적의 액정패널에 적용될 수 있을 뿐만 아니라 고휘도가 가능하기 때문에, 근래 LCD TV용 액정패널을 제작하는데 주로 사용되고 있다.The direct-type backlight is mainly used to fabricate a liquid crystal panel for LCD TV since light emitted from a lamp is directly supplied to the liquid crystal layer and thus can be applied to a large-area liquid crystal panel as well as high brightness.

한편, 근래 백라이트의 램프로서 형광램프 대신 발광소자(Light Emitting Device)와 같이 자체적으로 광을 발광하는 광원을 사용하고 있다. 이 발광소자는 R, G, B 단색광을 방출하기 때문에, 백라이트에 적용했을 때 색 재현율이 좋고 구동전력을 절감할 수 있다는 장점이 있다.On the other hand, in recent years, as a lamp of the backlight, instead of a fluorescent lamp, a light source that emits light itself, such as a light emitting device (Light Emitting Device). Since the light emitting device emits R, G, and B monochromatic light, it has an advantage of good color reproducibility and reduced driving power when applied to a backlight.

차광 테이프는 LCD 모듈에서 백라이트 유닛(BLU)에서 올라오는 테두리 부분의 빛을 차단하고, LCD 패널에 부착시키기 위해 사용되는 기능성 테이프로서, 주 부착면은 PC(폴리카보네이트) 하우징과 PET 편광판에 적용되며, 필요에 따라서는 LCD의 밝기를 증가시키기 위해 사용된다. Light-shielding tape is a functional tape used to block the light from the edge of the backlight unit (BLU) in the LCD module and attach it to the LCD panel. The main attachment surface is applied to the PC (polycarbonate) housing and PET polarizer. If necessary, it is used to increase the brightness of the LCD.

도 1은 종래 백색 및 흑색 양면 차광 테이프의 구성을 보여주는 단면도이다.1 is a cross-sectional view showing the configuration of a conventional white and black double-sided light shielding tape.

도 1을 참조하면, 종래 백색 및 흑색 양면 차광 테이프는 PET 층(10), PET 층(10)의 양면에 형성되어 흑색 인쇄 방식으로 차광 역할을 하는 흑색 제1 차광 인쇄층(12) 및 흑색 제2 차광 인쇄층(14), 제1 차광 인쇄층(12)의 상면에 형성되어 백색 인쇄 방식으로 차광 역할을 하는 백색 차광 인쇄층(16), 백색 차광 인쇄층(16) 및 흑색 제2차광 인쇄층(14)의 외면에 점착처리되어 있는 점착층(18, 20)으로 구성된다.Referring to FIG. 1, the conventional white and black double-sided light shielding tapes are formed on both sides of the PET layer 10 and the PET layer 10, and the black first light-shielding printed layer 12 and the black agent that serve as light shielding in a black printing manner. The white light-shielding printed layer 16, the white light-shielding printed layer 16, and the black second light-shielding printing formed on the upper surface of the second light-shielding printed layer 14 and the first light-shielding printed layer 12 to serve as light-shielding in a white printing manner. It consists of the adhesion layers 18 and 20 which are adhere | attached on the outer surface of the layer 14. As shown in FIG.

종래 백색 및 흑색 양면 차광 테이프는 총 두께가 약 50μm이상이다. 특히 PET 층(10)의 두께를 얇게 구현하는데에는 한계가 있는데, PET 층(10)을 너무 얇게 하면, 인쇄시 주름 현상과 찢어지는 현상이 발생하고, 합지시에는 골 주름 현상과 미 접착현상이 발생하는 문제점이 있다. Conventional white and black double sided light shielding tapes have a total thickness of about 50 μm or more. In particular, there is a limit in implementing a thin thickness of the PET layer 10. If the PET layer 10 is too thin, wrinkles and tears may occur during printing, and bone wrinkles and non-adhesion may occur during lamination. There is a problem that occurs.

또한, 종래 백색 및 흑색 양면 차광 테이프는 두께가 두꺼워서 차광 인쇄층(12, 14, 16)의 인쇄면이 박리되는 현상이 발생하고, 점착층(18, 20)을 구성하는 점착제가 분리되는 현상이 발생한다.In addition, the conventional white and black double-sided light shielding tapes are thick so that the printing surface of the light-shielding printing layers 12, 14, and 16 is peeled off, and the phenomenon that the adhesives constituting the adhesive layers 18 and 20 are separated. Occurs.

그리고, 백색 차광 인쇄층(16)과 흑색 차광 인쇄층(14)이 접해 있기 때문에, 백색을 제대로 구현하는 것이 어려운 문제점이 있다.
In addition, since the white light-shielding printed layer 16 and the black light-shielding printed layer 14 are in contact with each other, it is difficult to properly implement white.

본 발명은 상기와 같은 문제점을 해결하기 위하여 안출된 것으로서, 종래 백색 및 흑색 양면 차광 테이프에 비해 그 두께를 얇게 구현할 수 있으며, 백색을 원색에 가깝게 구현할 수 있는 백색 및 흑색 양면 차광 테이프 및 그 제조 방법을 제공하는데 그 목적이 있다.The present invention has been made to solve the above problems, and compared with the conventional white and black double-sided light-shielding tape can be implemented in a thin thickness, white and black double-sided light-shielding tape and a method of manufacturing the same that can be implemented in white close to the primary color The purpose is to provide.

또한, 본 발명은 인쇄면이 박리되는 현상 및 점착제가 분리되는 현상을 방지할 수 있는 백색 및 흑색 양면 차광 테이프 및 그 제조 방법을 제공하는데 그 다른 목적이 있다. Another object of the present invention is to provide a white and black double-sided light-shielding tape and a method of manufacturing the same that can prevent the printing surface from being peeled off and the adhesive from being separated.

본 발명의 목적은 이상에서 언급한 목적으로 제한되지 않으며, 언급되지 않은 또 다른 목적들은 아래의 기재로부터 당업자에게 명확하게 이해될 수 있을 것이다.
The objects of the present invention are not limited to the above-mentioned objects, and other objects not mentioned can be clearly understood by those skilled in the art from the following description.

이와 같은 목적을 달성하기 위한 본 발명의 백색 및 흑색 양면 차광 테이프는 제1 PET(Polyethylene Terephthalate)층, 백색 잉크로 인쇄 제작되어 입사되는 빛을 차단하며, 상기 제1 PET층의 일면에 형성되는 제1 차광 인쇄층, 제2 PET층, 흑색 잉크로 인쇄 제작되어 입사되는 빛을 차단하며, 상기 제2 PET층의 일면에 형성되는 제2 차광 인쇄층, 금속층, 상기 제1 차광 인쇄층과 상기 금속층의 일면을 접착시키기 위한 제1 접착층, 상기 제2 차광 인쇄층과 상기 금속층의 타면을 접착시키기 위한 제2 접착층, 상기 제1 PET층의 외부로 드러난 면에 점착처리되는 층인 제1 점착층 및 상기 제2 PET층의 외부로 드러난 면에 점착처리되는 층인 제2 점착층을 포함한다. White and black double-sided light-shielding tape of the present invention for achieving the above object is a first PET (Polyethylene Terephthalate) layer, printed with a white ink to block the incident light, is formed on one side of the first PET layer The first light-shielding printed layer, the second PET layer, and black ink is printed and blocked incident light, the second light-shielding printed layer formed on one surface of the second PET layer, the metal layer, the first light-shielding printed layer and the metal layer A first adhesive layer for adhering one surface of the first adhesive layer, a second adhesive layer for adhering the second light shielding printing layer and the other surface of the metal layer, and a first adhesive layer which is a layer adhesively applied to a surface exposed to the outside of the first PET layer It includes a second adhesive layer which is a layer that is adhesively bonded to the surface exposed to the outside of the second PET layer.

상기 제1 PET층 및 제2 PET층은 상기 흑색 잉크 인쇄시 면에 잘 안착되도록 하기 위하여 표면이 프라이마 코팅 처리될 수 있다.The first PET layer and the second PET layer may be subjected to a prima coating on the surface in order to be well seated on the surface when printing the black ink.

상기 금속층은 알루미늄으로 구성될 수 있다. The metal layer may be made of aluminum.

본 발명의 백색 및 흑색 양면 차광 테이프 제조 방법은 제1 PET층에 백색 인쇄하여 입사되는 빛을 차단하기 위한 제1 차광 인쇄층을 형성하는 단계, 제2 PET층에 흑색 인쇄하여 입사되는 빛을 차단하기 위한 제2 차광 인쇄층을 형성하는 단계, 상기 제1 차광 인쇄층과 금속층의 일면이 접착되도록 하고, 상기 제2 차광 인쇄층과 상기 금속층의 타면이 접착되도록 하는 합지 공정 단계 및 상기 제1 PET층 및 제2 PET층의 외면에 점착 처리하는 점착 공정 단계를 포함한다. The white and black double-sided light shielding tape manufacturing method of the present invention comprises the steps of forming a first light-shielding printed layer for blocking the incident light by white printing on the first PET layer, blocking the light incident by black printing on the second PET layer. Forming a second light-shielding printed layer for bonding, bonding a first surface of the first light-shielding printed layer to a metal layer, and bonding a second surface of the second light-shielding printed layer to the other surface of the metal layer, and the first PET And a step of adhering to the outer surface of the layer and the second PET layer.

상기 제1 PET층에 백색 잉크 인쇄시 면에 잘 안착되도록 하기 위하여 상기 제1 PET층 표면을 프라이마 코팅 처리하는 단계를 더 포함할 수 있다. The first PET layer may further include a step of priming the surface of the first PET layer in order to be well seated on the surface when printing a white ink.

상기 제2 PET층에 흑색 잉크 인쇄시 면에 잘 안착되도록 하기 위하여 상기 제2 PET층 표면을 프라이마 코팅 처리하는 단계를 더 포함할 수 있다.When the black ink is printed on the second PET layer, the surface of the second PET layer may be further subjected to a prismatic coating process so as to be seated on the surface.

상기 금속층은 알루미늄으로 구성될 수 있다. The metal layer may be made of aluminum.

상기 점착 공정 단계는 그라비아 방식으로 점착 공정을 수행하는 것일 수 있다.
The adhesion process step may be to perform the adhesion process in a gravure method.

본 발명에 의하면 종래 백색 및 흑색 양면 테이프에서 사용되는 기재보다 얇은 기재를 사용함으로써, 종래 백색 및 흑색 양면 테이프에 비해 두께가 얇게 구성되는 박막 차광 테이프로 구현할 수 있다는 효과가 있다. According to the present invention, by using a substrate that is thinner than the substrate used in the conventional white and black double-sided tape, there is an effect that it can be implemented as a thin film shading tape that is thinner than the conventional white and black double-sided tape.

또한, 본 발명에 의하면 백색 차광층과 흑색 차광층을 이격시켜서 구현함으로써, 백색을 원색에 가깝게 구현할 수 있는 효과가 있다. Further, according to the present invention, the white light blocking layer and the black light blocking layer are implemented to be separated from each other, thereby achieving the effect of implementing white to the primary color.

또한, 본 발명에 의하면 인쇄면이 박리되는 현상 및 점착제가 분리되는 현상을 방지할 수 있는 효과가 있다.
In addition, according to the present invention there is an effect that can prevent the phenomenon that the printing surface is peeled off and the phenomenon that the adhesive is separated.

도 1은 종래 백색 및 흑색 양면 차광 테이프의 구성을 보여주는 단면도이다.
도 2는 본 발명의 일 실시예에 따른 백색 및 흑색 양면 차광 테이프의 구성을 보여주는 단면도이다.
도 3은 본 발명의 일 실시예에 따른 백색 및 흑색 양면 차광 테이프 제조 방법을 보여주는 흐름도이다. 1 is a cross-sectional view showing the configuration of a conventional white and black double-sided light shielding tape.
2 is a cross-sectional view showing the configuration of a white and black double-sided light shielding tape according to an embodiment of the present invention.
3 is a flowchart illustrating a method of manufacturing white and black double-sided light shielding tapes according to an exemplary embodiment of the present invention.

이하, 첨부된 도면을 참조해서 본 발명의 실시예를 상세히 설명하면 다음과 같다. 우선 각 도면의 구성 요소들에 참조 부호를 부가함에 있어서, 동일한 구성 요소들에 한해서는 비록 다른 도면상에 표시되더라도 가능한 한 동일한 부호를 가지도록 하고 있음에 유의해야 한다. 그리고, 본 발명을 설명함에 있어서, 관련된 공지 기능 혹은 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우 그 상세한 설명을 생략한다. 또한, 명세서 전반에 걸쳐서, 어떤 부분이 어떤 구성요소를 "포함"한다고 할 때, 이는 특별히 반대되는 기재가 없는 한 다른 구성요소를 제외하는 것이 아니라, 다른 구성요소를 더 포함할 수 있다는 것을 의미한다.Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used for the same reference numerals even though they are shown in different drawings. In the following description of the present invention, a detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In addition, throughout the specification, when a part is said to "include" a certain component, it means that it may further include other components, without excluding the other components unless otherwise stated. .

도 2는 본 발명의 일 실시예에 따른 백색 및 흑색 양면 차광 테이프의 구성을 보여주는 단면도이다. 2 is a cross-sectional view showing the configuration of a white and black double-sided light shielding tape according to an embodiment of the present invention.

도 2를 참조하면, 본 발명의 백색 및 흑색 양면 차광 테이프는 제1 PET(Polyethylene Terephthalate)층(102), 제2 PET층(104), 제1 차광 인쇄층(106), 제2 차광 인쇄층(108), 금속층(110), 제1 접착층(112), 제2 접착층(114), 제1 점착층(116) 및 제2 점착층(118)을 포함한다. Referring to FIG. 2, the white and black double-sided light blocking tapes of the present invention may include a first polyethylene terephthalate (PET) layer 102, a second PET layer 104, a first light-shielding printed layer 106, and a second light-shielding printed layer. 108, a metal layer 110, a first adhesive layer 112, a second adhesive layer 114, a first adhesive layer 116, and a second adhesive layer 118.

본 발명의 일 실시예에서 제1 PET층(102)은 백색 잉크 인쇄시 면이 잘 안착되도록 하기 위하여 표면이 프라이마 코팅 처리될 수 있다. In an embodiment of the present invention, the first PET layer 102 may have a surface coated with a prima so as to allow the surface to be well seated when printing white ink.

또한, 본 발명의 일 실시예에서 제2 PET층(104)은 흑색 잉크 인쇄시 면이 잘 안착되도록 하기 위하여 표면이 프라이마 코팅 처리될 수 있다.In addition, in one embodiment of the present invention, the surface of the second PET layer 104 may be subjected to a prima coating to make the surface well seated when printing black ink.

본 발명의 일 실시예에서 금속층(110)은 알루미늄으로 구성될 수 있다. In one embodiment of the present invention, the metal layer 110 may be made of aluminum.

제1 차광 인쇄층(106)은 백색 잉크로 인쇄 제작되어 입사되는 빛을 차단하며, 제1 PET층(102)의 일면에 형성된다.The first light shielding printing layer 106 is printed and manufactured by white ink to block incident light, and is formed on one surface of the first PET layer 102.

제2 차광 인쇄층(108)은 흑색 잉크로 인쇄 제작되어 입사되는 빛을 차단하며, 제2 PET층(104)의 일면에 형성된다.The second light shielding printed layer 108 is printed and manufactured by black ink to block incident light, and is formed on one surface of the second PET layer 104.

제1 접착층(112)은 제1 차광 인쇄층(106)과 금속층(110)의 일면을 접착시키기 위한 역할을 한다.The first adhesive layer 112 serves to bond one surface of the first light shielding printing layer 106 and the metal layer 110 to each other.

제2 접착층(114)은 제2 차광 인쇄층(108)과 금속층(110)의 타면을 접착시키기 위한 역할을 한다.The second adhesive layer 114 serves to bond the second light shielding printing layer 108 to the other surface of the metal layer 110.

제1 점착층(116)은 제1 PET층(102)의 외부로 드러난 면에 점착처리되는 층이다.The first adhesive layer 116 is a layer that is adhered to a surface exposed to the outside of the first PET layer 102.

제2 점착층(118)은 제2 PET층(104)의 외부로 드러난 면에 점착처리되는 층이다.The second adhesive layer 118 is a layer that is adhered to the surface exposed to the outside of the second PET layer 104.

본 발명의 일 실시예에서 제1 점착층(116)과 제2 점착층(118)은 그라비아 방식으로 점착처리되어 형성될 수 있다. 종래 콤마코팅 방식에서는 점착층을 얇게 구현하는데 한계가 있으나, 본 발명의 그라비아 방식에서는 점착층을 얇게 구현하는데 효율적이다. 예를 들어, 그라비아 방식을 이용하면 점착층을 2μm 내지 10μm 의 두께로 구현할 수 있다. In an embodiment of the present invention, the first adhesive layer 116 and the second adhesive layer 118 may be formed by adhesive treatment in a gravure manner. In the conventional comma coating method, there is a limit to implementing a thin adhesive layer, but in the gravure method of the present invention, it is efficient to implement a thin adhesive layer. For example, using a gravure method, the adhesive layer can be implemented with a thickness of 2 μm to 10 μm.

본 발명에서 이형지 또는 이형지 PET는 점착층(116, 118)을 보호하기 위해 사용되며, 차폐 테이프 제조 공정상 필수적인 공정이며, 사용자가 실제 사용시에는 이형지 또는 이형지 PET를 제거한 후에 사용하게 된다.In the present invention, the release paper or the release paper PET is used to protect the adhesive layers 116 and 118 and is an essential process in the manufacturing process of the shielding tape, and the user may use the release paper or the release paper PET after removing the release paper or the release paper PET.

본 발명의 백색 및 흑색 양면 차광 테이프는 종래 백색 및 흑색 양면 차광 테이프에 비해 두께를 얇게 구현할 수 있다. 예를 들어, 종래 백색 및 흑색 양면 차광 테이프의 두께가 50μm이상인데 반해, 본 발명의 흑색 양면 차광 테이프는 30μm정도로 구현할 수 있다. 제1 PET층(102)과 제2 PET층(104)을 각각 4.5μm로 하고, 제1 차광 인쇄층(106)과 제2 차광 인쇄층(108)을 각각 2μm로 하고, 금속층(110)을 6μm로 하고, 제1 접착층(112)과 제2 접착층(114)을 1μm로 하고, 제1 점착층(116)과 제2 점착층(118)을 각각 3μm로 구현하는 식이다.White and black double-sided light shielding tape of the present invention can be implemented to be thinner than the conventional white and black double-sided light-shielding tape. For example, while the thickness of the conventional white and black double-sided light shielding tape is 50 μm or more, the black double-sided light-shielding tape of the present invention can be implemented to about 30 μm. The first PET layer 102 and the second PET layer 104 are each 4.5 µm, the first light shielding printing layer 106 and the second light shielding printing layer 108 are each 2 µm, and the metal layer 110 is formed. 6 μm, the first adhesive layer 112 and the second adhesive layer 114 are 1 μm, and the first adhesive layer 116 and the second adhesive layer 118 are each embodied at 3 μm.

도 2에서 보는 바와 같이, 백색 인쇄면인 제1 차광 인쇄층(106)과 흑색 인쇄면인 제2 차광 인쇄층(108)을 서로 격리시키고, 그 중간에 알루미늄 등의 금속층(110)을 포함시킴으로써 백색을 원색에 가깝게 구현할 수 있다.
As shown in FIG. 2, the first light-shielding printed layer 106 which is the white printing surface and the second light-shielding printing layer 108 which is the black printing surface are isolated from each other, and a metal layer 110 such as aluminum is included in the middle. White can be made closer to the primary color.

도 3은 본 발명의 일 실시예에 따른 백색 및 흑색 양면 차광 테이프 제조 방법을 보여주는 흐름도이다. 3 is a flowchart illustrating a method of manufacturing white and black double-sided light shielding tapes according to an exemplary embodiment of the present invention.

도 3을 참조하면, 제1 PET층(102)에 백색 인쇄하여 입사되는 빛을 차단하기 위한 제1 차광 인쇄층(106)을 형성한다(S301).Referring to FIG. 3, the first light shielding printing layer 106 is formed to block incident light by white printing on the first PET layer 102 (S301).

본 발명의 일 실시예에서 제1 PET층(102)에 백색 잉크 인쇄시 면에 잘 안착되도록 하기 위하여 제1 PET층(102) 표면을 프라이마 코팅 처리하는 단계를 더 포함할 수 있다.In one embodiment of the present invention, the first PET layer 102 may further include a step of priming the surface of the first PET layer 102 in order to be well mounted on the surface when printing white ink.

그리고, 제2 PET층(104)에 흑색 인쇄하여 입사되는 빛을 차단하기 위한 제2 차광 인쇄층(108)을 형성한다(S303).In operation S303, a second light shielding printing layer 108 may be formed on the second PET layer 104 by black printing to block incident light.

본 발명의 일 실시예에서 제2 PET층(104)에 흑색 잉크 인쇄시 면에 잘 안착되도록 하기 위하여 제2 PET층(104) 표면을 프라이마 코팅 처리하는 단계를 더 포함할 수 있다.In an embodiment of the present invention, the second PET layer 104 may further include a step of priming the surface of the second PET layer 104 so as to be well seated on the surface when printing black ink.

다음, 제1 차광 인쇄층(106)과 금속층(110)의 일면이 접착되도록 하고, 제2 차광 인쇄층(108)과 금속층(110)의 타면이 접착되도록 하는 합지 공정을 수행한다(S305). 본 발명의 일 실시예에서 금속층(110)은 알루미늄으로 구성될 수 있다. Next, a lamination process is performed such that one surface of the first light shielding printing layer 106 and the metal layer 110 are adhered to each other and the other surface of the second light shielding printing layer 108 and the metal layer 110 are adhered to each other (S305). In one embodiment of the present invention, the metal layer 110 may be made of aluminum.

다음, 제1 PET층(102) 및 제2 PET층(104)의 외면에 점착 처리하는 점착 공정을 수행한다(S307). 본 발명의 일 실시예에서 S307 단계는 그라비아 방식으로 점착 공정을 수행할 수 있다. 즉, 종래 콤마코팅 방식에서는 점착층을 얇게 구현하는데 한계가 있으나, 본 발명의 그라비아 방식에서는 점착층을 얇게 구현하는데 효율적이다. 예를 들어, 그라비아 방식을 이용하면 점착층을 2μm 내지 10μm 의 두께로 구현할 수 있다. Next, an adhesive process is performed on the outer surfaces of the first PET layer 102 and the second PET layer 104 (S307). In one embodiment of the present invention step S307 may be carried out the adhesive process in a gravure method. That is, in the conventional comma coating method, there is a limit to implementing a thin adhesive layer, but in the gravure method of the present invention, it is efficient to implement a thin adhesive layer. For example, using a gravure method, the adhesive layer can be implemented with a thickness of 2 μm to 10 μm.

본 발명에서 점착층(116, 118)을 보호하기 위하여, 점착층(116, 118)에 이형지 또는 이형지 PET를 추가하며, 이는 차광 테이프 제조 공정상 필수적인 공정이라고 할 수 있고, 사용자가 실제 사용시에는 이형지 또는 이형지 PET를 제거한 후에 백색 및 흑색 양면 차광 테이프를 사용하게 된다.
In order to protect the adhesive layers 116 and 118 in the present invention, a release paper or a release paper PET is added to the adhesive layers 116 and 118, which may be referred to as an essential process in a light-shielding tape manufacturing process, and the user may release the paper in actual use. Alternatively, after removing the release paper PET, a white and black double-sided light shielding tape is used.

이상 본 발명을 몇 가지 바람직한 실시예를 사용하여 설명하였으나, 이들 실시예는 예시적인 것이며 한정적인 것이 아니다. 본 발명이 속하는 기술분야에서 통상의 지식을 지닌 자라면 본 발명의 사상과 첨부된 특허청구범위에 제시된 권리범위에서 벗어나지 않으면서 다양한 변화와 수정을 가할 수 있음을 이해할 것이다.
While the invention has been described using some preferred embodiments, these embodiments are illustrative and not restrictive. Those skilled in the art will appreciate that various changes and modifications can be made without departing from the spirit of the invention and the scope of the rights set forth in the appended claims.

102 제1 PET층 104 제2 PET층
106 제1 차광 인쇄층 108 제2 차광 인쇄층
110 금속층 112 제1 접착층
114 제2 접착층 116 제1 점착층
118 제2 점착층102 First PET Layer 104 Second PET Layer
106 First Shading Print Layer 108 Second Shading Print Layer
110 Metal layer 112 First adhesive layer
114 Second Adhesive Layer 116 First Adhesive Layer
118 second adhesive layer

Claims (8)

제1 PET(Polyethylene Terephthalate)층;
백색 잉크로 인쇄 제작되어 입사되는 빛을 차단하며, 상기 제1 PET층의 일면에 형성되는 제1 차광 인쇄층;
제2 PET층;
흑색 잉크로 인쇄 제작되어 입사되는 빛을 차단하며, 상기 제2 PET층의 일면에 형성되는 제2 차광 인쇄층;
금속층;
상기 제1 차광 인쇄층과 상기 금속층의 일면을 접착시키기 위한 제1 접착층;
상기 제2 차광 인쇄층과 상기 금속층의 타면을 접착시키기 위한 제2 접착층;
상기 제1 PET층의 외부로 드러난 면에 점착처리되는 층인 제1 점착층; 및
상기 제2 PET층의 외부로 드러난 면에 점착처리되는 층인 제2 점착층을 포함하되,
상기 제1 PET층 및 제2 PET층은 상기 백색 잉크 및 상기 흑색 잉크 인쇄시 면에 잘 안착되도록 하기 위하여 표면이 프라이마 코팅 처리되고,
상기 제1 점착층 및 제2 점착층은 그라비아 방식으로 점착처리되어 형성되는 것을 특징으로 하는 백색 및 흑색 양면 차광 테이프.
A first polyethylene terephthalate (PET) layer;
A first light-shielding printed layer formed on one surface of the first PET layer to block incident light by being printed and manufactured with white ink;
A second PET layer;
A second light-shielding printing layer formed on one surface of the second PET layer to block incident light by being printed and manufactured with black ink;
Metal layer;
A first adhesive layer for bonding the first light shielding printing layer and one surface of the metal layer;
A second adhesive layer for bonding the second light shielding printing layer to the other surface of the metal layer;
A first adhesive layer which is a layer that is adhered to a surface exposed to the outside of the first PET layer; And
Including a second adhesive layer which is a layer that is adhesively bonded to the surface exposed to the outside of the second PET layer,
The surface of the first PET layer and the second PET layer is subjected to a prima coating so that the white ink and the black ink are well placed on the surface when printed.
The first adhesive layer and the second adhesive layer is a white and black double-sided light-shielding tape, characterized in that formed by the adhesive treatment in a gravure method.
삭제delete 제1항에 있어서,
상기 금속층은 알루미늄으로 구성되는 것임을 특징으로 하는 백색 및 흑색 양면 차광 테이프.
The method of claim 1,
White and black double-sided light shielding tape, characterized in that the metal layer is composed of aluminum.
제1 PET층에 백색 인쇄하여 입사되는 빛을 차단하기 위한 제1 차광 인쇄층을 형성하는 단계;
상기 제1 PET층에 백색 잉크 인쇄시 면에 잘 안착되도록 하기 위하여 상기 제1 PET층 표면을 프라이마 코팅 처리하는 단계;
제2 PET층에 흑색 인쇄하여 입사되는 빛을 차단하기 위한 제2 차광 인쇄층을 형성하는 단계;
상기 제2 PET층에 흑색 잉크 인쇄시 면에 잘 안착되도록 하기 위하여 상기 제2 PET층 표면을 프라이마 코팅 처리하는 단계;
상기 제1 차광 인쇄층과 금속층의 일면이 접착되도록 하고, 상기 제2 차광 인쇄층과 상기 금속층의 타면이 접착되도록 하는 합지 공정 단계; 및
상기 제1 PET층 및 제2 PET층의 외면에 점착 처리하는 점착 공정 단계를 포함하고,
상기 점착 공정 단계는 그라비아 방식으로 점착 공정을 수행하는 것을 특징으로 하는 백색 및 흑색 양면 차광 테이프 제조 방법.
White printing on the first PET layer to form a first light-shielding printed layer for blocking the incident light;
Prima coating the surface of the first PET layer so as to be well seated on the surface when the white ink is printed on the first PET layer;
Black printing the second PET layer to form a second light-shielding printed layer for blocking incident light;
Prima coating the surface of the second PET layer so as to be seated on the surface when the black ink is printed on the second PET layer;
A lamination process step of allowing one surface of the first light-shielding printed layer and the metal layer to adhere to each other and bonding the second surface of the second light-shielding printed layer to the other surface of the metal layer; And
It includes an adhesive process step of adhesive treatment on the outer surface of the first PET layer and the second PET layer,
The adhesive process step is a white and black double-sided light-shielding tape manufacturing method, characterized in that for performing the adhesive process in a gravure method.
삭제delete 삭제delete 제4항에 있어서,
상기 금속층은 알루미늄으로 구성되는 것임을 특징으로 하는 백색 및 흑색 양면 차광 테이프 제조 방법.
5. The method of claim 4,
The metal layer is a white and black double-sided light shielding tape manufacturing method, characterized in that consisting of aluminum.
삭제delete
KR1020120047571A 2012-05-04 2012-05-04 Light blocking double-faced tape in white and black, and method of manufacturing thereof KR101230035B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170035567A (en) 2015-09-23 2017-03-31 주식회사 영우 Conductive light shielding tape
KR20170035568A (en) 2015-09-23 2017-03-31 주식회사 영우 Manufacturing method of conductive light shielding tape
KR20200033418A (en) * 2018-09-20 2020-03-30 (주)파트론 Shadow film

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005060435A (en) * 2003-08-14 2005-03-10 Three M Innovative Properties Co Double-sided pressure-sensitive adhesive sheet
JP2005263994A (en) * 2004-03-18 2005-09-29 Soken Chem & Eng Co Ltd Light-diffusive/reflective-and-screening adhesive tape and flat panel-type display device using the same
JP2007320981A (en) * 2006-05-30 2007-12-13 Dainippon Ink & Chem Inc Adhesive tape and lcd module produced by using the same
JP4645074B2 (en) * 2004-06-24 2011-03-09 Ｄｉｃ株式会社 Double-sided adhesive tape and liquid crystal display module unit using the same

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2005060435A (en) * 2003-08-14 2005-03-10 Three M Innovative Properties Co Double-sided pressure-sensitive adhesive sheet
JP2005263994A (en) * 2004-03-18 2005-09-29 Soken Chem & Eng Co Ltd Light-diffusive/reflective-and-screening adhesive tape and flat panel-type display device using the same
JP4645074B2 (en) * 2004-06-24 2011-03-09 Ｄｉｃ株式会社 Double-sided adhesive tape and liquid crystal display module unit using the same
JP2007320981A (en) * 2006-05-30 2007-12-13 Dainippon Ink & Chem Inc Adhesive tape and lcd module produced by using the same

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20170035567A (en) 2015-09-23 2017-03-31 주식회사 영우 Conductive light shielding tape
KR20170035568A (en) 2015-09-23 2017-03-31 주식회사 영우 Manufacturing method of conductive light shielding tape
KR20200033418A (en) * 2018-09-20 2020-03-30 (주)파트론 Shadow film
KR102180131B1 (en) * 2018-09-20 2020-11-19 (주)파트론 Shadow film

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