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KR20060107472A - Roll coating equipment - Google Patents

Roll coating equipment Download PDF

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Publication number
KR20060107472A
KR20060107472A KR1020060091596A KR20060091596A KR20060107472A KR 20060107472 A KR20060107472 A KR 20060107472A KR 1020060091596 A KR1020060091596 A KR 1020060091596A KR 20060091596 A KR20060091596 A KR 20060091596A KR 20060107472 A KR20060107472 A KR 20060107472A
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South Korea
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roll
master
film
sheet
paint
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KR100812313B1 (en
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김준섭
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(주)피엔티
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C1/00—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating
    • B05C1/04—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length
    • B05C1/08—Apparatus in which liquid or other fluent material is applied to the surface of the work by contact with a member carrying the liquid or other fluent material, e.g. a porous member loaded with a liquid to be applied as a coating for applying liquid or other fluent material to work of indefinite length using a roller or other rotating member which contacts the work along a generating line
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C—APPARATUS FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05C11/00—Component parts, details or accessories not specifically provided for in groups B05C1/00 - B05C9/00
    • B05C11/10—Storage, supply or control of liquid or other fluent material; Recovery of excess liquid or other fluent material
    • 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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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Abstract

본 발명은 롤코팅장치에 관한 것으로서, 톱니형상 및 다양한 형상의 미세한 패턴을 일정한 간격으로 형성한 마스터시트를 이용하여 광학용 시트를 제작하는 롤코팅장치를 구성하되, 마스터시트에 형성된 패턴에 세 번에 걸쳐 자외선 경화도료를 도포한 후 필름에 찍어내도록 하며, 두 번의 자외선 경화를 통해 신속하게 건조되도록 함으로써 인쇄된 필름의 표면에 기포가 발생하지 않고 제작속도를 높일 수 있는 특징이 있다.The present invention relates to a roll coating apparatus, comprising a roll coating apparatus for manufacturing an optical sheet using a master sheet formed with a tooth pattern and a fine pattern of various shapes at regular intervals, three times in a pattern formed on the master sheet After applying the UV curable coating over the film to be dipped in, through the two UV curing to dry quickly there is a feature that can increase the production speed without generating bubbles on the surface of the printed film.

본 발명은 크게 네 부분으로 구성되는바, 일측면으로는 톱니형상의 패턴에 형성되어 있고 타측면으로는 매끈한 면이 형성된 마스터시트(11)와 이 마스터시트(11)를 지지하면서 회전시키는 원통 형태의 지지롤(12) 및 마스터시트(11)를 지속적으로 회전시키는 회전롤(13)로 구성된 마스터부(10)와; 상기 마스터부(10)의 상 · 하부에 설치되어 필름(50)을 이송시키는 이송롤(21)과 상기 지지롤(12)과 맞접하여 회전하여 자외선 경화도료가 필름(50) 표면에 형성되도록 하는 가압롤(22)로 구성된 이송부(20)와; 상기 마스터부(10)의 하단에 형성되어 마스터시트(11)의 표면에 자외선 경화도료를 세 단계에 걸쳐 공급되도록 제 1 · 2· 3 가이드롤(31a, 31b, 31c) 및 제 1 · 2· 3 인쇄롤(32a, 32b, 32c)로 구성된 도료공급부(30)와; 필름(50)의 표면에 형성된 자외선 경화도료를 경화시키도록 제 1 · 2 경화장치(41, 42)로 구성된 경화부(40)로 구성되어, 미세 패턴의 형성시 기포 발생 을 억제하고 신속하게 패턴이 형성되도록 한 대략적인 구성을 갖는다.The present invention is largely composed of four parts, one side of which is formed in a sawtooth pattern, the other side is formed of a smooth surface and a cylindrical shape to rotate while supporting the master sheet (11) A master part 10 composed of a supporting roll 12 and a rotating roll 13 for continuously rotating the master sheet 11; It is installed on the upper and lower portions of the master portion 10 and rotates in contact with the feed roll 21 and the support roll 12 for transferring the film 50 so that the ultraviolet curable paint is formed on the surface of the film 50 A conveying unit 20 composed of a pressing roll 22; First, second, and third guide rolls 31a, 31b, and 31c, and the first and second, respectively, formed at the lower end of the master part 10 so as to supply the ultraviolet curable paint to the surface of the master sheet 11 in three steps. A paint supply unit 30 composed of three printing rolls 32a, 32b, and 32c; Consists of a hardened portion 40 composed of the first and second curing devices 41 and 42 to cure the ultraviolet curable paint formed on the surface of the film 50, thereby suppressing the occurrence of bubbles when forming a fine pattern and quickly It has an approximate configuration that allows it to be formed.

상기와 같이 구성된 본 발명은, 소정의 형상을 갖는 마스터시트를 원하는 길이로 절단하여 연결 후 그 마스터시트를 활용하여 광학용 시트를 제작하되, 마스터부의 저부에 1 · 2 · 3차에 걸쳐 순차 설치된 도료공급부를 통해 패턴 내에 자외선 경화도료가 적층되는 형태로 나누어 공급됨으로써 경화도료 내부에 기포 발생을 최소화하여 고품질의 광학용 시트를 제작할 수 있는 효과가 있다.According to the present invention configured as described above, after cutting and connecting a master sheet having a predetermined shape to a desired length, the optical sheet is manufactured by using the master sheet, but is sequentially installed on the bottom of the master part one to two times. The UV curable paint is laminated and supplied in a pattern through the paint supply part, thereby minimizing the occurrence of bubbles in the cured paint, thereby producing a high quality sheet for optics.

또한, 하나의 패턴 내에 자외선 경화도료를 세 번에 나누어 공급하고, 자외선을 통한 경화를 두 번에 걸쳐 행함으로써 코팅 두께의 정밀도를 향상시킬 수 있으며, 도포된 경화도료를 신속하게 건조시켜 광학용 시트의 제작속도를 높일 수 있는 또 다른 효과가 있다.In addition, it is possible to improve the accuracy of coating thickness by supplying UV curable paint in three patterns in one pattern and curing through UV in two times. There is another effect that can speed up the production of.

광학용 시트, 마스터시트, 필름, 자외선 경화도료 Optic sheet, master sheet, film, UV curable paint

Description

롤 코팅장치{ DEVICE USING ROLLERS FOR COATING }Roll Coating Equipment {DEVICE USING ROLLERS FOR COATING}

도 1은 본 발명에 따른 개략적인 구성을 나타낸 단면도. 1 is a cross-sectional view showing a schematic configuration according to the present invention.

도 2는 본 발명에 따른 일부 확대 단면도. 2 is a partially enlarged cross-sectional view according to the present invention.

[ 도면의 주요부분에 대한 부호의 설명 ][Description of Code for Major Parts of Drawing]

10: 마스터부 11: 마스터스트10: master unit 11: master

12: 지지롤 13: 회전롤 12: support roll 13: rotary roll

20: 이송부 21: 이송롤20: feeder 21: feed roll

22: 가압롤 30: 도료공급부22: pressure roll 30: paint supply

31a: 제 1 가이드롤 31b: 제 2 가이드롤31a: first guide roll 31b: second guide roll

31c: 제 3 가이드롤 32a: 제 1 인쇄롤31c: 3rd guide roll 32a: 1st printing roll

32b: 제 2 인쇄롤 32c: 제 3 인쇄롤32b: second printing roll 32c: third printing roll

40: 경화부 41: 제 1 경화장치40: hardening part 41: first curing apparatus

42: 제 2 경화장치 50: 필름42: second curing apparatus 50: film

본 발명은 롤코팅장치에 관한 것으로서, 톱니형상 및 다양한 형상의 미세한 패턴을 일정한 간격으로 형성한 마스터시트를 이용하여 광학용 시트를 제작하는 롤코팅장치를 구성하되, 마스터시트에 형성된 패턴에 세 번에 걸쳐 자외선 경화도료를 도포한 후 필름에 찍어내도록 하며, 두 번의 자외선 경화를 통해 신속하게 건조되도록 함으로써 인쇄된 표면에 기포가 발생하지 않고 제작속도를 높일 수 있도록 한 롤코팅장치에 관한 것이다.The present invention relates to a roll coating apparatus, comprising a roll coating apparatus for manufacturing an optical sheet using a master sheet formed with a tooth pattern and a fine pattern of various shapes at regular intervals, three times in a pattern formed on the master sheet The present invention relates to a roll coating apparatus for applying a UV curable paint over and then dipping the film, and rapidly drying through two UV curings to increase the production speed without generating bubbles on the printed surface.

근래에 들어 영상표시수단으로 각광을 받고 있는 액정표시장치(LCD: Liquid Crystal Display)는 기존 음극선관과는 달리 전력소모가 매우 적고, 전자총을 사용하지 않아 얇고 가벼운 특징이 있어 근래에 급속한 개발 및 보급이 이루어지는데, 이러한 액정표시장치는 자체적으로 발광하지 못하기 때문에 반드시 필요로 하는 광원을 얻고자 일반적으로 백라이트 유닛(Back Light Unit)이라는 광원장치를 사용하는바, 이는 LCD 패널(panel)의 뒤쪽에서 배면 광원으로서 역할을 수행하며, Mold Frame, LGP(도광판), 램프, 반사판, 확산시트, 프리즘시트 등의 부품으로 구성하게 된다.Recently, liquid crystal display (LCD), which has been spotlighted as an image display means, has a very low power consumption unlike a conventional cathode ray tube, and is thin and light because it does not use an electron gun. Since the liquid crystal display does not emit light by itself, in order to obtain a necessary light source, a light source device called a back light unit is generally used, which is located at the back of the LCD panel. It acts as a back light source and consists of parts such as mold frame, LGP (light guide plate), lamp, reflector plate, diffusion sheet, and prism sheet.

상기 백라이트 유닛에 사용되는 광학용 시트는 한 쪽에 톱니형상, 둥근 형상의 면을 갖고, 다른 한 쪽에 그와 반대되는 매끄러운 면을 갖는 투명한 중합체 물질로 이루어지며, 이에 입사되는 광선(빛)은 굴절되어 톱니형상의 면 또는 매끄러운 면에 부딪히는 입사광의 상당한 부분이 투과되고, 그 나머지는 전반사가 이루어 지게 된다.The optical sheet used in the backlight unit is made of a transparent polymer material having a serrated, rounded surface on one side and a smooth surface opposite to the other side, and the incident light rays are refracted A substantial portion of the incident light hitting the serrated or smooth surface is transmitted, and the rest is totally reflected.

이러한 광학용 시트를 제작함에 있어서, 미세한 패턴을 형성한 마스터롤과 가압롤의 사이로 이송되는 필름의 한쪽 표면에 자외선 경화도료(포토폴리머)를 도포하고, 상기 마스터롤과 가압롤에 의해 자외선 경화도료가 도포된 필름의 표면을 가압하여 일정한 간격으로 톱니형상의 미세한 패턴을 형성한 필름에 자외선을 조사하여 경화시키는 방법으로 이루어지는 롤코팅장치에 의해 필요로 하는 광학용 시트를 제작하게 된다. In producing such an optical sheet, an ultraviolet curable paint (photopolymer) is applied to one surface of the film transferred between the master roll and the press roll having a fine pattern formed thereon, and the ultraviolet cured paint by the master roll and the press roll. The sheet | seat for optics required by the roll coating apparatus which consists of a method of irradiating and hardening an ultraviolet-ray to the film which formed the sawtooth-shaped fine pattern at the regular interval by pressing the surface of the film to which it was apply | coated is produced.

이와 같이 광학용 시트제작에 사용되는 롤코팅장치를 장기간 사용하게 되면, 상기 마스터롤의 표면이 마모 또는 변형이 되거나 패턴의 설계를 변경하고자 교체를 필요로 하는데, 종래에 사용되는 마스터롤은 제작이 용이하지 않을 뿐만 아니라 다양한 크기를 갖는 광학용 시트를 제작함에 있어서 비용, 시간 등의 문제로 어려움이 따르고, 무게가 무거워서 지게차나 크레인과 같은 각종 중기를 이용하여 운반이 이루어지므로 교체작업을 수행함에 있어서 어려움이 있음은 물론, 교체작업에 많은 시간을 필요로 하기에 비용, 시간의 낭비가 심해 효율적이지 못한 문제점이 있다.As such, when the roll coating apparatus used for optical sheet production is used for a long time, the surface of the master roll is worn or deformed or needs to be replaced in order to change the design of the pattern. Not only easy but also difficult to produce optical sheets having various sizes, such as cost, time, etc. are difficult, and the weight is heavy, so transportation is carried out using various heavy machinery such as forklifts or cranes, and thus, in performing replacement work. As well as the difficulty, there is a problem that is not efficient because the cost, time wasted to waste a lot of time for the replacement work.

또한, 자외선 경화도료가 마스터롤에 인접한 위치에서 공급됨으로 인해 경화도료의 내부에 기포가 내재되는 경우가 많아 불량의 요소로 작용하게 되며, 자외선 경화도료의 경화속도 또한 느려서 생산력 저하의 원인으로 작용하고 있는 실정이 다.In addition, since the UV cured paint is supplied from a position adjacent to the master roll, bubbles are often embedded in the cured paint, and thus act as a defective element. There is a situation.

이에 본 발명은 상기와 같은 문제점을 감안하여 발명한 것으로, 소정의 형상을 갖는 마스터시트를 원하는 길이로 절단하여 연결 후 그 마스터시트를 활용하여 광학용 시트를 제작하되, 마스터부의 저부에 1 · 2 · 3차에 걸쳐 순차 설치된 도료공급부를 통해 패턴 내에 자외선 경화도료가 적층되는 형태로 나누어 공급됨으로써 경화도료 내부에 기포 발생을 최소화하여 고품질의 광학용 시트를 제작할 수 있도록 함을 목적으로 한다.Accordingly, the present invention has been invented in view of the above problems, and after cutting and connecting a master sheet having a predetermined shape to a desired length, the optical sheet is manufactured by using the master sheet, but at the bottom of the master part 1, 2 · It is aimed to make high quality optical sheet by minimizing bubble generation inside the cured paint by supplying it in the form of lamination of UV cured paint in the pattern through the paint supply part sequentially installed over three times.

또한, 하나의 패턴 내에 자외선 경화도료를 세 번에 나누어 공급하고, 자외선을 통한 경화를 두 번에 걸쳐 행함으로써 코팅 두께의 정밀도를 향상시킬 수 있으며, 도포된 경화도료를 신속하게 건조시켜 광학용 시트의 제작속도를 높일 수 있도록 함을 또 다른 목적으로 한다.In addition, it is possible to improve the accuracy of coating thickness by supplying UV curable paint in three patterns in one pattern and curing through UV in two times. Another aim is to increase the speed of production.

본 발명은 롤코팅장치에 관한 것으로서, 톱니형상 및 다양한 형상의 미세한 패턴을 일정한 간격으로 형성한 마스터시트를 이용하여 광학용 시트를 제작하는 롤코팅장치를 구성하되, 마스터시트에 형성된 패턴에 세 번에 걸쳐 자외선 경화도료를 도포한 후 필름에 찍어내도록 하며, 두 번의 자외선 경화를 통해 신속하게 건조되도록 함으로써 인쇄된 필름의 표면에 기포가 발생하지 않고 제작속도를 높일 수 있는 특징이 있다.The present invention relates to a roll coating apparatus, comprising a roll coating apparatus for manufacturing an optical sheet using a master sheet formed with a tooth pattern and a fine pattern of various shapes at regular intervals, three times in a pattern formed on the master sheet After applying the UV curable coating over the film to be dipped in, through the two UV curing to dry quickly there is a feature that can increase the production speed without generating bubbles on the surface of the printed film.

본 발명은 크게 네 부분으로 구성되는바, 일측면으로는 톱니형상의 패턴에 형성되어 있고 타측면으로는 매끈한 면이 형성된 마스터시트(11)와 이 마스터시트(11)를 지지하면서 회전시키는 원통 형태의 지지롤(12) 및 마스터시트(11)를 지속적으로 회전시키는 회전롤(13)로 구성된 마스터부(10)와; 상기 마스터부(10)의 상 · 하부에 설치되어 필름(50)을 이송시키는 이송롤(21)과 상기 지지롤(12)과 맞접하여 회전하여 자외선 경화도료가 필름(50) 표면에 형성되도록 하는 가압롤(22)로 구성된 이송부(20)와; 상기 마스터부(10)의 하단에 형성되어 마스터시트(11)의 표면에 자외선 경화도료를 세 단계에 걸쳐 공급되도록 제 1 · 2· 3 가이드롤(31a, 31b, 31c) 및 제 1 · 2· 3 인쇄롤(32a, 32b, 32c)로 구성된 도료공급부(30)와; 필름(50)의 표면에 형성된 자외선 경화도료를 경화시키도록 제 1 · 2 경화장치(41, 42)로 구성된 경화부(40)로 구성되어, 미세 패턴의 형성시 기포 발생을 억제하고 신속하게 패턴이 형성되도록 한 대략적인 구성을 갖는다.The present invention is largely composed of four parts, one side of which is formed in a sawtooth pattern, the other side is formed of a smooth surface and a cylindrical shape to rotate while supporting the master sheet (11) A master part 10 composed of a supporting roll 12 and a rotating roll 13 for continuously rotating the master sheet 11; It is installed on the upper and lower portions of the master portion 10 and rotates in contact with the feed roll 21 and the support roll 12 for transferring the film 50 so that the ultraviolet curable paint is formed on the surface of the film 50 A conveying unit 20 composed of a pressing roll 22; First, second, and third guide rolls 31a, 31b, and 31c, and the first and second, respectively, formed at the lower end of the master part 10 so as to supply the ultraviolet curable paint to the surface of the master sheet 11 in three steps. A paint supply unit 30 composed of three printing rolls 32a, 32b, and 32c; Consists of a curing unit 40 composed of the first and second curing devices 41 and 42 to cure the ultraviolet curable paint formed on the surface of the film 50, thereby suppressing the occurrence of bubbles in the formation of a fine pattern and quickly It has an approximate configuration that allows it to be formed.

이하 본 발명에 첨부된 도면을 참조하여 상세히 살펴보면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 개략적인 구성을 나타낸 단면도이고, 도 2는 본 발명의 요부 확대 단면도로써, 우선, 마스터부(10)의 구성을 살펴보면, 도시한 바와 같이, 마스터부(10)는 마스터시트(11), 지지롤(12), 회전롤(13)로 구성된바, 상기 마스터 시트(11)는 얇은 시트형태로 구성되되, 일측면은 톱니형상의 미세한 패턴이 일정한 간격으로 형성되어 있으며, 타측면은 매끈한 형태로 구성된다.1 is a cross-sectional view showing a schematic configuration of the present invention, Figure 2 is an enlarged cross-sectional view of the main portion of the present invention, first, look at the configuration of the master unit 10, as shown, the master unit 10 is a master sheet (11), consisting of a support roll 12, a rotary roll 13, the master sheet 11 is configured in a thin sheet form, one side is a sawtooth-shaped fine pattern is formed at regular intervals, the other The sides have a smooth shape.

상기 마스터시트(11)는 기존의 방식으로 제작되거나 본 발명의 방식으로 제작된 광학용 시트를 이용하여 미세한 패턴을 형성한 후, 소정의 길이로 재단한 다음, 톱니형상의 미세한 패턴을 형성한 표면이 외측을 향하도록 지지롤(12)과 회전롤(13) 제 1 · 2· 3 가이드롤(31a, 31b, 31c)에 거치한 후, 양끝단을 서로 접합시켜 사용토록 한다.The master sheet 11 is a surface formed by forming a fine pattern using an optical sheet manufactured by the conventional method or the method of the present invention, and then cut to a predetermined length, and then formed a sawtooth-shaped fine pattern After the supporting roll 12 and the rotary roll 13 are mounted on the first, second and third guide rolls 31a, 31b, and 31c so as to face the outside, both ends are joined to each other for use.

상기와 같은 톱니형상의 미세한 패턴뿐만 아니라 필요에 따라 다양한 형상을 갖는 미세한 패턴으로 균일하게 형성할 수 있도록 구성된다.As well as the sawtooth fine pattern as described above is configured to be uniformly formed in a fine pattern having a variety of shapes as needed.

한편, 지지롤(12)은 직경이 큰 원통 롤 형태로, 이는 후술하는 가압롤(22)과 맞접하도록 설치되며, 고정된 상태로 지속적으로 회전하면서 마스터시트(11)를 이송시켜 가압롤(22)에 의해 미세한 패턴이 잘 형성되도록 지지하는 구성을 갖는다.On the other hand, the support roll 12 is in the form of a cylindrical roll having a large diameter, which is installed to abut the pressure roll 22 to be described later, by transporting the master sheet 11 while continuously rotating in a fixed state, the pressure roll 22 ) To support the fine pattern to be formed well.

또한, 회전롤(13)은 고정된 상태로 계속 회전하면서 상기 지지롤(12)과 함께 마스터시트(11)를 지속적으로 회전시키는 구성을 갖는다.In addition, the rotary roll 13 has a configuration to continuously rotate the master sheet 11 with the support roll 12 while continuing to rotate in a fixed state.

이송부(20)를 구성하는 이송롤(21)과 가압롤(22)의 구성을 살펴보면, 우선, 이송롤(21)은 고정된 상태로 자전하면서 필름(50)의 이송을 돕도록 하는 것으로, 필름(50)의 이송 경로를 따라 지지롤(12)의 상부와 지지롤(12)의 하부 및 제 2경화장치(42)의 전측에 각각 설치되어 필름(50)이 원활하게 이송될 수 있도록 한 구성을 갖는다.Looking at the configuration of the conveying roll 21 and the pressure roll 22 constituting the conveying unit 20, first, the conveying roll 21 is to help the conveying of the film 50 while rotating in a fixed state, the film The upper portion of the support roll 12, the lower portion of the support roll 12, and the front side of the second curing device 42, respectively, along the transfer path of the 50 is configured so that the film 50 can be smoothly transferred. Has

또한, 지지롤(12)의 상부에 설치되어 지지롤(12)과 맞접하여 회전하는 가압롤(22)의 구성을 살펴보면, 상기 지지롤(12)과 가압롤(22) 사이를 통과하는 마스터시트(11)와 필름(50)을 가압하여 마스터시트(11)에 형성된 자외선 경화도료를 필름(50)에 옮겨 붙도록 하여 필름(50)에 미세한 패턴이 형성되도록 하는 것으로, 상기 가압롤(22)은 상 · 하로 유동이 가능하여 필름(50)과 마스터시트(11)의 두께에 따라 가압 폭이 조절되도록 구성된다.In addition, looking at the configuration of the pressure roll 22 is installed on top of the support roll 12 to rotate in contact with the support roll 12, the master sheet passing between the support roll 12 and the pressure roll 22 Pressing the film (11) and the film (50) to transfer the ultraviolet curable paint formed on the master sheet 11 to the film (50) to form a fine pattern on the film (50), the pressure roll (22) Silver can be flowed up and down is configured to adjust the pressure width according to the thickness of the film 50 and the master sheet (11).

한편, 도료공급부(30)는 상기 마스터부(10)의 하단에 형성되어 마스터시트(11)에 자외선 경화도료를 세 단계에 걸쳐 공급되도록 제 1 · 2· 3 가이드롤(31a, 31b, 31c)과 제 1 · 2· 3 인쇄롤(32a, 32b, 32c)로 구성된다.On the other hand, the paint supply unit 30 is formed on the lower end of the master unit 10 to supply the UV cured paint to the master sheet 11 in three stages of the first, second, third guide rolls (31a, 31b, 31c) And first and second printing rolls 32a, 32b, and 32c.

상기 제 1 · 2· 3 가이드롤(31a, 31b, 31c)은 마스터시트(11)의 내면과 접하도록 일정간격으로 설치되어 회전하며, 그와 대응되는 위치에는 제 1 · 2· 3 인쇄롤(32a, 32b, 32c)이 마스터시트(11)의 표면과 접하도록 설치되어 있어서, 제 1 · 2· 3 인쇄롤(32a, 32b, 32c)로부터 자외선 경화도료가 공급되어 제 1 · 2· 3 가이드롤(31a, 31b, 31c)과 접하여 회전하게 되면 마스터시트(11)의 표면에 형성된 톱니형태의 미세 패턴 사이에 자외선 경화도료가 단계적으로 공급 · 적층되는 구성을 갖는다.The first, second, and third guide rolls 31a, 31b, and 31c are installed and rotated at regular intervals to contact the inner surface of the master sheet 11, and the first, second, and third printing rolls (1, 2, 3 printing rolls) 32a, 32b, and 32c are provided in contact with the surface of the master sheet 11, the ultraviolet curable paint is supplied from the first and second printing rolls 32a, 32b, and 32c, and the first, second, and third guides are provided. When rotated in contact with the rolls (31a, 31b, 31c) has a configuration in which the ultraviolet curable paint is fed and laminated step by step between the sawtooth-shaped fine pattern formed on the surface of the master sheet (11).

다시 말해, 1차 가이드롤(31a)과 1차 인쇄롤(32a)에 의해 미세 패턴에 형성된 홈 내부가 1/3 가량 채워지고, 그 후 2차 가이드롤(31b)과 1차 인쇄롤(32b)에 의해 미세 패턴에 형성된 홈 내부가 2/3 가량 채워지며, 마지막으로 3차 가이드 롤(31c)과 3차 인쇄롤(32c)에 의해 미세 패턴에 형성된 홈 내부가 모두 채워지도록 함으로써 미세 패턴의 내부로 자외선 경화도료가 공급될 시 기포의 발생이 억제되도록 구성된다.In other words, about 1/3 of the inside of the groove formed in the fine pattern is filled by the primary guide roll 31a and the primary printing roll 32a, and then the secondary guide roll 31b and the primary printing roll 32b are filled. The inside of the groove formed in the fine pattern is filled by 2/3, and finally, the inside of the groove formed in the fine pattern is filled by the tertiary guide roll 31c and the tertiary printing roll 32c. When the ultraviolet curable paint is supplied to the inside, the generation of bubbles is suppressed.

또한, 필름(50)의 표면에 형성된 자외선 경화도료를 경화시키도록 구성된 경화부(40)는, 제 1 · 2 경화장치(41, 42)로 구성되는바, 제 1 경화장치(41)는 지지롤(12)의 일측 외주면을 따라 형성되되, 그 형태가 라운드진 원호의 형태로 형성되어 필름(50)의 배면에 자외선을 조사하여 1차적으로 경화를 완료하도록 구성된다.In addition, the curing unit 40 configured to cure the ultraviolet curing paint formed on the surface of the film 50 is composed of the first and second curing devices 41 and 42, and the first curing device 41 is supported. It is formed along the outer circumferential surface of one side of the roll 12, the shape is formed in the form of a rounded arc is configured to irradiate the back of the film 50 with ultraviolet rays to complete the curing primarily.

그 후, 상기 1차 경화된 필름(50)이 이송롤(21)에 의해 이송되면, 바닥부에 수직으로 설치된 제 2 경화장치(42)에 의해 필름(50)의 표면에 형성된 자외선 경화도료에 직접 자외선을 조사하여 경화시킴으로써 신속하게 제작되는 구성을 갖는다.After that, when the primary cured film 50 is transferred by the transfer roll 21, the UV cured paint formed on the surface of the film 50 by the second curing device 42 installed perpendicular to the bottom part. It has a structure which is produced quickly by directly irradiating and curing ultraviolet rays.

상기 사용되는 필름(50)은 광학용 시트를 제작하기 위해 통상적으로 사용되는 것으로, 상기 이송롤(21)에 의해 이송되면서 연속적으로 공급이 이루어지게 된다. The film 50 used is commonly used to produce an optical sheet, and is continuously supplied while being transported by the feed roll 21.

상기와 같이 구성된 본 발명의 작동과정을 살펴보면, 우선 마스터시트(11)는 지지롤(12)과 회전롤(13) 및 제 1 · 2· 3 가이드롤(31a, 31b, 31c)에 거치하여 지속적으로 회전되도록 하며, 필름(50)은 이송롤(21)과 가압롤(22)에 거치하여 지속적으로 공급되도록 한다.Looking at the operating process of the present invention configured as described above, first, the master sheet 11 is mounted on the support roll 12 and the rotary roll 13 and the first, second and third guide rolls (31a, 31b, 31c) To rotate, the film 50 is mounted on the feed roll 21 and the pressure roll 22 to be continuously supplied.

상기와 같이 마스터시트(11)와 필름(50)을 각각 작동시키면, 마스터시트(11)의 표면에는 제 1 · 2· 3 가이드롤(31a, 31b, 31c)과 제 1 · 2· 3 인쇄롤(32a, 32b, 32c)에 의해 자외선 경화도료가 도포되며, 가압롤(22)과 지지롤(12) 사이에서 마스터시트(11)와 필름(50)이 가압되면서 마스터시트(11)에 도포된 자외선 경화도료가 필름(50)의 표면으로 톱니형상의 미세한 패턴이 옮겨지게 된다.When the master sheet 11 and the film 50 are operated as described above, the first, second and third guide rolls 31a, 31b and 31c and the first and second and third printing rolls are formed on the surface of the master sheet 11. UV curing paint is applied by (32a, 32b, 32c), the master sheet 11 and the film 50 is pressed between the pressing roll 22 and the support roll 12 is applied to the master sheet 11 Ultraviolet cured paint is transferred to the surface of the film 50 in a fine pattern of teeth.

이후 제 1 경화장치(41)에 의해 1차적으로 경화가 이루어지고, 이송롤(21)에 의해 이송되어 제 2 경화장치(42)에 의해 2차적으로 경화가 이루어져 필요로 하는 광학용 시트가 완성된다. Thereafter, the curing is performed primarily by the first curing device 41, and is transferred by the transfer roll 21 to be cured secondarily by the second curing device 42, thereby completing the optical sheet required. do.

상기와 같이 구성된 본 발명은, 소정의 형상을 갖는 마스터시트를 원하는 길이로 절단하여 연결 후 그 마스터시트를 활용하여 광학용 시트를 제작하되, 마스터부의 저부에 1 · 2 · 3차에 걸쳐 순차 설치된 도료공급부를 통해 패턴 내에 자외선 경화도료가 적층되는 형태로 나누어 공급됨으로써 경화도료 내부에 기포 발생을 최소화하여 고품질의 광학용 시트를 제작할 수 있는 효과가 있다.According to the present invention configured as described above, after cutting and connecting a master sheet having a predetermined shape to a desired length, the optical sheet is manufactured by using the master sheet, but is sequentially installed on the bottom of the master part one to two times. The UV curable paint is laminated and supplied in a pattern through the paint supply part, thereby minimizing the occurrence of bubbles in the cured paint, thereby producing a high quality sheet for optics.

또한, 하나의 패턴 내에 자외선 경화도료를 세 번에 나누어 공급하고, 자외선을 통한 경화를 두 번에 걸쳐 행함으로써 코팅 두께의 정밀도를 향상시킬 수 있으며, 도포된 경화도료를 신속하게 건조시켜 광학용 시트의 제작속도를 높일 수 있는 또 다른 효과가 있다.In addition, it is possible to improve the accuracy of coating thickness by supplying UV curable paint in three patterns in one pattern and curing through UV in two times. There is another effect that can speed up the production of.

Claims (3)

롤코팅장치에 있어서, In the roll coating apparatus, 일측면으로는 톱니형상의 패턴에 형성되어 있고 타측면으로는 매끈한 면이 형성된 마스터시트(11)와 이 마스터시트(11)를 지지하면서 회전시키는 원통 형태의 지지롤(12) 및 마스터시트(11)를 지속적으로 회전시키는 회전롤(13)로 구성된 마스터부(10)와;The master sheet 11 is formed in a sawtooth pattern on one side and the smooth surface is formed on the other side, and the cylindrical support roll 12 and the master sheet 11 are rotated while supporting the master sheet 11. Master part 10 consisting of a rotary roll 13 for continuously rotating; 상기 마스터부(10)의 상 · 하부에 설치되어 필름(50)을 이송시키는 이송롤(21)과 상기 지지롤(12)과 맞접하여 회전하여 자외선 경화도료가 필름(50) 표면에 형성되도록 하는 가압롤(22)로 구성된 이송부(20)와;It is installed on the upper and lower portions of the master portion 10 and rotates in contact with the feed roll 21 and the support roll 12 for transferring the film 50 so that the ultraviolet curable paint is formed on the surface of the film 50 A conveying unit 20 composed of a pressing roll 22; 상기 마스터부(10)의 하단에 형성되어 마스터시트(11)의 표면에 자외선 경화도료를 세 단계에 걸쳐 공급되도록 제 1 · 2· 3 가이드롤(31a, 31b, 31c) 및 제 1 · 2· 3 인쇄롤(32a, 32b, 32c)로 구성된 도료공급부(30)와;First, second, and third guide rolls 31a, 31b, and 31c, and the first and second, respectively, formed at the lower end of the master part 10 so as to supply the ultraviolet curable paint to the surface of the master sheet 11 in three steps. A paint supply unit 30 composed of three printing rolls 32a, 32b, and 32c; 필름(50)의 표면에 형성된 자외선 경화도료를 경화시키도록 제 1 · 2 경화장치(41, 42)로 구성된 경화부(40)로 구성되어, 미세 패턴의 형성시 기포 발생을 억제하고 신속하게 패턴이 형성되도록 함을 특징으로 하는 롤코팅장치.Consists of a curing unit 40 composed of the first and second curing devices 41 and 42 to cure the ultraviolet curable paint formed on the surface of the film 50, thereby suppressing the occurrence of bubbles in the formation of a fine pattern and quickly Roll coating apparatus characterized in that to be formed. 제 1항에 있어서,The method of claim 1, 가압롤(22)은 상 · 하로 유동이 가능하여 필름(50)과 마스터시트(11)의 두 께에 따라 가압 폭을 조절할 수 있도록 함을 특징으로 하는 롤코팅장치.Pressing roll 22 is a roll coating device, characterized in that to be able to flow up and down to adjust the pressure width according to the thickness of the film 50 and the master sheet (11). 제 1항에 있어서,The method of claim 1, 1차 가이드롤(31a)과 1차 인쇄롤(32a)에 의해 미세 패턴에 형성된 홈에 자외선 경화도료가 1/3만큼 채워지고, 2차 가이드롤(31b)과 1차 인쇄롤(32b)에 의해 미세 패턴에 형성된 홈에 자외선 경화도료가 2/3만큼 채워지며, 3차 가이드롤(31c)과 3차 인쇄롤(32c)에 의해 미세 패턴에 형성된 홈에 자외선 경화도료가 모두 채워지도록 함을 특징으로 하는 롤코팅장치.The grooves formed in the fine pattern by the primary guide roll 31a and the primary printing roll 32a are filled with the ultraviolet curable paint by 1/3, and the secondary guide roll 31b and the primary printing roll 32b are filled with each other. The UV cured paint is filled in the groove formed in the fine pattern by 2/3, and the UV cured paint is filled in the groove formed in the fine pattern by the tertiary guide roll 31c and the tertiary printing roll 32c. Roll coating device characterized in that.
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KR101541687B1 (en) * 2014-12-22 2015-08-04 주식회사 디케이티 Roll coating apparatus having a tension control device
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