KR100909897B1 - Method for manufacturing of light diffusion plate - Google Patents

Method for manufacturing of light diffusion plate Download PDF

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Publication number
KR100909897B1
KR100909897B1 KR1020080013613A KR20080013613A KR100909897B1 KR 100909897 B1 KR100909897 B1 KR 100909897B1 KR 1020080013613 A KR1020080013613 A KR 1020080013613A KR 20080013613 A KR20080013613 A KR 20080013613A KR 100909897 B1 KR100909897 B1 KR 100909897B1
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South Korea
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light diffusion
block
diffusion plate
light
resin
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KR1020080013613A
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Korean (ko)
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전병국
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(주)네오지텍
전병국
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    • 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
    • B32B15/12—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 paper or cardboard
    • 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
    • B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/304—Insulating
    • 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
    • B32B2311/00—Metals, their alloys or their compounds
    • B32B2311/24—Aluminium
    • 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
    • B32B2317/00—Animal or vegetable based
    • B32B2317/12—Paper, e.g. cardboard
    • 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
    • B32B2607/00—Walls, panels
    • B32B2607/02—Wall papers, wall coverings
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
    • D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
    • D21H27/18—Paper- or board-based structures for surface covering
    • D21H27/20—Flexible structures being applied by the user, e.g. wallpaper

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  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

A method for manufacturing a light diffusion plate by using a light diffusion resin composition is provided to improve light diffusion and light permeability. A method for manufacturing a light diffusion plate by using a light diffusion resin composition comprises the steps of (S10) injecting the light diffusion resin composition into a silo to remove moisture and foreign materials at 75~80°C for 150~180 min in a dehumidification drier; (S20) injecting the light diffusion resin where moisture and foreign materials are removed into the hopper of an extruder to melt and extrude it in the extruder; (S30) supplying the molten light diffusion resin to a T die via the channel of a feeder block by the pressure of the extruder; (S40) extruding the molten light diffusion resin supplied to the T die into a light diffusion plate of a constant wide width in the T die having a streamline channel; (S50) passing the light diffusion plate extruded in the T die through a polishing 3 stage roller to control the thickness deviation; and (S60) coating the upper and lower surfaces of the light diffusion plate with a protective film with transferring it through a guide conveyor and cutting it by a constant length.

Description

광확산판 제조방법{Method for manufacturing of light diffusion plate}Method for manufacturing of light diffusion plate

본 발명은 광확산판 제조방법에 관한 것으로, 더욱 세부적으로는 광확산 수지 조성물을 이용하여 높은 광확산성과 광투과율을 갖는 광확산판을 제조하여, 광고판이나 조명장치 등에 사용하는 광확산판 제조방법에 관한 것이다.The present invention relates to a light diffusing plate manufacturing method, and more particularly, to a light diffusing plate having a high light diffusing property and a light transmittance using a light diffusing resin composition, a light diffusing plate manufacturing method for use in advertising billboards or lighting devices, etc. It is about.

광확산판이란 점이나 선 광원에서 나오는 빛을 면을 따라 확산시켜 화면 전체적으로 색상 및 밝기가 균일하게 보이도록 해 주는 반투명 부품으로서, 일반적으로 광확산성 아크릴 수지 제품은 광고판이나 조명장치, 액정디스플레이용 백라이트 등에 사용되고 있다.A light diffusion plate is a translucent part that diffuses light from a point or line light source along the surface to make the color and brightness uniform throughout the screen. Generally, a light diffusing acrylic resin product is used for an advertisement board, lighting device, or liquid crystal display. It is used for a backlight.

종래에는 아크릴 수지 조성물에 광확산성을 부여하기 위해 탄산칼슘이나, 유리섬유, 유산바륨 및 이산화티탄 등과 같은 무기 충진물을 첨가하거나, 엠보싱롤러에 의한 아크릴 표면에 기계적인 엠보싱 형상을 부여하는 방법이 사용되고 있다.Conventionally, a method of adding an inorganic filler such as calcium carbonate, glass fiber, barium lactate and titanium dioxide, or imparting a mechanical embossing shape to an acrylic surface by an embossing roller is used to impart light diffusivity to the acrylic resin composition. have.

그러나, 상기와 같이 아크릴 수지에 탄산칼슘이나 유리섬유 등과 같은 무기 충진물을 첨가하게 되면 광투과율이 현저히 저하되는 문제점이 발생되고, 기계적으로 엠보싱을 형성하게 되면 조명 커버와 같은 각종 형상으로 블로우(Blow)나 진공성형할 경우 엠보싱이 소멸되어 광확산성이 저하되는 문제점이 발생된다.However, the addition of inorganic fillers such as calcium carbonate or glass fiber to the acrylic resin, as described above, causes a significant decrease in light transmittance, and mechanically embossing to form various shapes such as lighting covers. When vacuum forming, the embossing disappears, which causes a problem of deterioration of light diffusivity.

상술한 바와 같은 문제점을 해결하기 위하여, 본 발명에서는 광확산 수지 조성물을 이용하여 광확산성과 광투과성이 향상되는 광확산판을 제조하고, 상기 광확산판의 상하부면에는 은나노수지 또는 착색제 등과 같은 기능적 시트가 더 부가되도록 하는 광확산판 제조방법을 제공하는데 목적이 있다.In order to solve the problems as described above, in the present invention by using a light diffusing resin composition to produce a light diffusing plate is improved light diffusion and light transmittance, the upper and lower surfaces of the light diffusion plate functional such as silver nano resin or colorant It is an object of the present invention to provide a method for manufacturing a light diffusing plate to further add a sheet.

목적을 달성하기 위한 제조방법으로는, 광확산 수지 조성물을 싸이로로 투입하여 제습건조기에서 75~80℃의 온도로 150~180분간 습기 및 이물질을 제거하는 원료투입공정과; 상기 습기 및 이물질이 제거된 광확산 수지가 압출기의 호퍼로 투입되어, 상기 압출기에서 용융 및 압출되는 용융공정과; 상기 용융된 광확산 수지가 압출기의 압력에 의해 피더블럭의 유로를 거쳐 T다이로 공급되는 이송공정과; 상기 T다이로 공급된 용융된 광확산 수지가 유선형 유로를 갖는 T다이에서 일정한 광폭의 광확산판으로 압출되는 압출공정과; 상기 T다이에서 압출된 광확산판이 폴리싱 3단롤러를 거치면서 두께편차가 조정되는 편차조정공정과; 상기 편차조정이 완료된 광확산판이 가이드콘베어를 통해 이송되면서 상하부면에 보호필름이 코팅되고, 일정길이로 커팅되는 커팅공정을 포함한다.As a manufacturing method for achieving the object, the raw material input step of removing the moisture and foreign matter 150-180 minutes at a temperature of 75 ~ 80 ℃ in a dehumidifying dryer by putting the light diffusion resin composition into a cyclo; A melting process in which the light diffusion resin from which the moisture and foreign matters have been removed is introduced into a hopper of an extruder and melted and extruded in the extruder; A transfer step of supplying the molten light-diffusion resin to the T-die through the flow path of the feeder block by the pressure of the extruder; An extrusion process in which the molten light diffusion resin supplied to the T die is extruded from a T die having a streamlined flow path into a light diffusion plate having a constant width; A deviation adjustment step of adjusting the thickness deviation while the light diffusion plate extruded from the T die is subjected to a polishing three-stage roller; The light diffusion plate is completed by the deviation adjustment is transferred through the guide conveyor, the protective film is coated on the upper and lower surfaces, and includes a cutting process of cutting to a certain length.

본 발명의 다른 특징으로서, 상기 압출기는 호퍼 하단에 5개의 스크류 실린더 블럭으로 분할되며, 상기 5개의 스크류 실린더 블럭은 광확산 수지가 투입되는 공급블럭과, 광확산 수지가 믹싱되는 멀팅블럭과, 광확산 수지가 용융되는 용융블 럭과, 상기 용융된 광확산 수지가 300~400PSI 압력으로 이송되는 압력블럭 및 상기 압력블럭에서 이송되는 광확산 수지를 기어펌프를 이용하여 700kgf/hr으로 정량 계량하는 계량블럭을 포함한다.As another feature of the present invention, the extruder is divided into five screw cylinder blocks at the bottom of the hopper, the five screw cylinder block is a supply block into which the light diffusion resin is injected, a multing block into which the light diffusion resin is mixed, and the light Weighing to quantitatively measure the melting block in which the diffusion resin is melted, the pressure block in which the molten light diffusion resin is transferred at a pressure of 300 to 400 PSI, and the light diffusion resin transferred in the pressure block at 700 kgf / hr using a gear pump. Contains a block.

본 발명의 또 다른 특징으로서, 상기 공급블럭과 멀팅블럭 및 용융블럭은 각각 185~195℃의 온도로 유지되며, 상기 압력블럭과 계량블럭은 각각 200~210℃의 온도로 유지된다.As another feature of the present invention, the supply block, the multing block and the melting block are maintained at a temperature of 185 ~ 195 ℃, respectively, the pressure block and the metering block is maintained at a temperature of 200 ~ 210 ℃, respectively.

본 발명의 또 다른 특징으로서, 상기 압출공정은 T다이에서 광확산판으로 압출되는 상기 광확산판의 상하부면에 은나노수지 또는 착색제가 상기 광확산 수지 조성물 대비 0.5~1.0%의 범위로 코팅되는 코팅공정을 더 포함한다.As another feature of the present invention, the extrusion process is a coating in which a silver nano resin or a colorant is coated in a range of 0.5 to 1.0% of the light diffusion resin composition on the upper and lower surfaces of the light diffusion plate that is extruded from the T die to the light diffusion plate. The process further includes.

본 발명의 또 다른 특징으로서, 상기 피더블럭은 210℃의 온도로 유지되며, 상기 광확산 수지 조성물이 이송되는 유로 상하부에는 상부유로 및 하부유로가 형성된다.As another feature of the present invention, the feeder block is maintained at a temperature of 210 ℃, the upper flow path and the lower flow path is formed in the upper and lower flow path to which the light diffusion resin composition is transferred.

본 발명의 또 다른 특징으로서, 상기 폴리싱 3단롤러 내부에는 냉각수가 공급되어 광확산판을 냉각시킨다.As another feature of the present invention, a cooling water is supplied to the polishing three-stage roller to cool the light diffusion plate.

상기한 바와 같이, 본 발명은 광확산 수지 조성물을 이용하여 광확산성과 광투과성이 향상된 광확산판을 제조하고, 상기 광확산판 상하부면에는 은나노수지 또는 착색제와 같은 기능적 시트를 더 부가할 수 있는 효과가 있다.As described above, the present invention manufactures a light diffusing plate with improved light diffusivity and light transmittance using a light diffusing resin composition, and further functional sheets such as silver nano resins or colorants may be further added to upper and lower surfaces of the light diffusing plate. It works.

도 1은 본 발명에 따른 광확산판 제조방법의 공정도이고, 도 2는 본 발명에 따른 광확산판 제조방법의 블럭도이다.1 is a process diagram of a light diffusion plate manufacturing method according to the present invention, Figure 2 is a block diagram of a light diffusion plate manufacturing method according to the present invention.

이하, 도면을 참고로 제조방법을 설명하면 다음과 같다.Hereinafter, the manufacturing method will be described with reference to the drawings.

도 1은 본 발명의 광확산판 제조방법의 공정도로서, 원료투입공정(S10), 용융공정(S20), 이송공정(S30), 압출공정(S40), 편차조정공정(S50), 커팅공정(S60)으로 구성된다.1 is a process diagram of the light diffusion plate manufacturing method of the present invention, raw material input step (S10), melting step (S20), transfer step (S30), extrusion step (S40), deviation adjustment step (S50), cutting step ( S60).

본 발명에 사용되는 광확산 수지 조성물은 광확산성과 광투과성이 우수한 아크릴계 수지 또는 아크릴-스티렌계 공중합 수지 또는 스티렌 수지 중 어느 하나를 선택적으로 사용하고, 상기 선택된 수지에 광확산제를 첨가하여 사용하게 된다.The light-diffusion resin composition used in the present invention may be any one of an acrylic resin, an acrylic-styrene copolymer resin or a styrene resin having excellent light diffusivity and light transmittance, and a light diffusing agent may be added to the selected resin. do.

상기와 같이 혼합된 광확산 수지 조성물을 저장탱크에서 싸이로(10)로 투입하게 되며, 상기 싸이로(10) 하부에 구비되는 제습건조기(20)에서 75~80℃의 온도로 150~180분간 상기 광확산 수지 조성물에 함유되어 있는 습기 및 이물질을 제거하게 되며, 상기 제습건조기(20) 내부에는 투입되는 광확산 수지 조성물이 골고루 교반되도록 교반장치가 구비된다(S10 공정).The light diffusion resin composition mixed as described above is introduced into the cyclone 10 from the storage tank, and is 150 to 180 minutes at a temperature of 75 to 80 ° C. in the dehumidifying dryer 20 provided under the cyclone 10. Moisture and foreign matter contained in the light diffusion resin composition is removed, and the stirring apparatus is provided to uniformly stir the light diffusion resin composition introduced into the dehumidifying dryer 20 (S10 step).

상기 제습건조기(20)에서 습기 및 이물질이 제거된 광확산 수지는 이송호스를 통해 압출기(30) 상부에 구비되는 호퍼(30a)로 투입되어, 상기 압출기(30)에서 용융 및 압출된다(S20 공정).The light diffusion resin from which moisture and foreign matters are removed from the dehumidifying dryer 20 is introduced into a hopper 30a provided on the extruder 30 through a transfer hose, and melted and extruded in the extruder 30 (S20 process). ).

상기 압출기(30)는 호퍼(30a) 하단에 5개의 스크류 실린더 블럭으로 분할되는데, 상기 5개의 스크류 실린더 블럭은 광확산 수지가 투입되며 상기 호퍼(30a)가 상단에 구비되는 공급블럭(31)과, 상기 공급블럭(31)에 연결되며 광확산 수지가 믹싱되는 멀팅블럭(32)과, 상기 멀팅블럭(32)에 연결되며 광확산 수지가 용융되는 용 융블럭(33)과, 상기 용융블럭(33)에 연결되며 상기 용융된 광확산 수지가 300~400PSI 압력으로 이송되는 압력블럭(34) 및 상기 압력블럭(34)에 연결되며 상기 압력블럭(34)에서 이송되는 광확산 수지를 기어펌프를 이용하여 700kgf/hr으로 정량 계량하는 계량블럭(35)을 포함하며, 상기 호퍼(30a)가 상단에 구비되는 공급블럭(31) 내지 계량블럭(35)으로의 광확산 수지는 5개의 블럭 전체에 걸쳐 구비되는 스크류에 의해 이송된다.The extruder 30 is divided into five screw cylinder blocks at the bottom of the hopper 30a, and the five screw cylinder blocks are filled with light diffusion resin and the supply block 31 having the hopper 30a provided at the top thereof. And a melting block 32 connected to the supply block 31 and mixing the light diffusion resin, a melting block 33 connected to the multing block 32 and melting the light diffusion resin, and the melting block 33 is connected to the pressure block 34 and the pressure block 34 to which the molten light diffusion resin is transferred at a pressure of 300 to 400 PSI and the light diffusion resin transferred from the pressure block 34 to the gear pump. It includes a metering block 35 for quantitatively measuring by using 700kgf / hr, the light diffusion resin to the supply block 31 to the metering block 35, the hopper 30a is provided on the top of the five blocks It is conveyed by a screw provided over.

상기 공급블럭(31)과 멀팅블럭(32) 및 용융블럭(33)의 내부온도는 185~195℃의 온도로 유지되면서 투입되는 광확산 수지가 압출기(30) 내부에서 이송되면서 일정한 점도를 가지도록 용융되며, 200~210℃의 내부온도를 갖는 상기 압력블럭(34)과 계량블럭(35)을 거치면서 상기 일정한 점도상태를 유지하게 된다. The internal temperature of the supply block 31, the multing block 32, and the melting block 33 is maintained at a temperature of 185 ~ 195 ℃ so that the light diffusion resin introduced into the extruder 30 to have a constant viscosity Melted, while maintaining the constant viscosity state through the pressure block 34 and the metering block 35 having an internal temperature of 200 ~ 210 ℃.

상기 용융된 광확산 수지는 압출기(30) 후단에 구비되는 압력블럭(34)의 압력 및 계량블럭(35)의 기어펌프에 의해 피더블럭(40)의 유로(41)를 거쳐 T다이(50)로 공급되는데(S30 공정), 상기 피더블럭(40)의 내부온도는 상기 압출기(30)의 압력블럭(34) 및 계량블럭(35)과 동일한 200~210℃의 온도를 유지하며, 상기 피더블럭(40)은 중앙부에 상기 용융된 광확산 수지가 이송되는 유로(41)가 형성되며, 상기 유로(41) 상하부에는 상부유로(42) 및 하부유로(43)가 형성된다.The molten light-diffusion resin is passed through the flow path 41 of the feeder block 40 by the pressure of the pressure block 34 provided at the rear end of the extruder 30 and the gear pump of the metering block 35. Is supplied to (S30 process), the internal temperature of the feeder block 40 maintains the temperature of 200 ~ 210 ℃ the same as the pressure block 34 and the metering block 35 of the extruder 30, the feeder block 40, a flow path 41 through which the molten light-diffusion resin is transferred is formed at a central portion thereof, and upper and lower flow passages 42 and lower flow passages 43 are formed at upper and lower portions of the flow passage 41.

상기 피더블럭(40)의 유로(41)로 이송되는 용융된 광확산 수지는 상기 유선형 유로를 갖는 T다이(50)에서 일정한 광폭을 갖는 광확산판으로 압출되는데(S40 공정), 상기 계량블럭(35)의 기어펌프에서 700kgf/hr로 계량되는 광확산 수지는 약 1340mm의 폭과 2.0t 두께의 광확산판으로 형성되며, 상기 기어펌프의 계량되는 광 확산 수지의 양을 조절함으로써, 완성되는 광확산판의 폭과 두께를 조절할 수 있다.The molten light diffusion resin transferred to the flow path 41 of the feeder block 40 is extruded from the T-die 50 having the streamline flow path to a light diffusion plate having a predetermined width (S40 process), and the metering block ( The light diffusion resin, measured at 700 kgf / hr in the gear pump of 35), is formed of a light diffusion plate having a width of about 1340 mm and a thickness of 2.0 tons, and is completed by adjusting the amount of the light diffusion resin measured in the gear pump. The width and thickness of the diffuser plate can be adjusted.

또한, 상기 T다이(50)에서 광확산판으로 압출되는 상기 광확산판의 상하부면에는 사용목적에 따라 은나노수지 또는 특정 색상을 갖는 착색제 등이 상기 광확산 수지 조성물 대비 0.5~1.0%의 범위로 코팅되는 코팅공정(S41 공정)을 더 포함하게 된다.In addition, the upper and lower surfaces of the light diffusing plate, which is extruded from the T die 50 to the light diffusing plate, in the range of 0.5 to 1.0% of silver nano resin or a colorant having a specific color, depending on the purpose of use. The coating process to be coated (S41 process) is further included.

상기 광확산판에 코팅되는 은나노수지는 항균작용을 배가시키는 기능을 하며, 각종 색상을 갖는 착색제를 코팅시키는 이유는 본 발명의 광확산판이 적용되는 광고판이나 조명장치 등에 다양한 색상을 부여하여 미적감각을 높이기 위함이며, 상기 은나노수지나 착색제 외에도 우수한 열적 안정성과 전기적 특성 및 내구성, 내광성 등이 뛰어난 기타 다른 수지를 사용할 수도 있다.The silver nano resin coated on the light diffusion plate functions to double the antibacterial action, and the reason for coating a colorant having various colors is to give a variety of colors to an advertisement board or lighting device to which the light diffusion plate of the present invention is applied to aesthetic sense. In order to increase, in addition to the silver nano resin and the colorant, other resins having excellent thermal stability, electrical properties, durability, and light resistance may be used.

상기 코팅공정(S41 공정)에 사용되는 은나노수지 또는 착색제 등은 상기 피더블럭(40) 일측으로 투입되어 상부유로(42)를 통해서는 상기 광확산판의 상부면에 코팅되며, 하부유로(43)를 통해서는 상기 광확산판의 하부면에 코팅되는 것으로, 상기 광확산판의 상부면 또는 하부면 또는 상하부면에 선택적으로 코팅하여 사용할 수 있다.Silver nano resin or colorant used in the coating process (S41 process) is introduced into one side of the feeder block 40 is coated on the upper surface of the light diffusion plate through the upper channel 42, the lower channel 43 Through the coating on the lower surface of the light diffusion plate, it can be used by selectively coating on the upper surface or lower surface or upper and lower surfaces of the light diffusion plate.

상기 T다이(50)로 압출된 광확산판은 상기 T다이(50) 전면에 구비되는 폴리싱 3단롤러(60)를 거치면서 두께편차가 조정된다(S50 공정).The light diffusing plate extruded by the T die 50 has a thickness deviation is adjusted while passing through the polishing three-stage roller 60 provided on the front of the T die 50 (S50 step).

예를 들어, 1.5t의 두께를 갖는 광확산판으로 가공하고자 할 경우, 상기 T다이(50)에서 광확산판이 2.0t로 압출되면, 1단과 2단 폴리싱롤러 사이 및 2단과 3단 폴리싱롤러 사이를 통과하면서 2회에 걸쳐 두께가 조정되는데, 이때 상기 1단과 2단 폴리싱롤러 사이의 간격은 1.75t로 형성되며, 2단과 3단 폴리싱롤러 사이의 간격은 1.5t로 형성하여, 상기 광확산판의 두께를 조정하게 된다. 상기 1단 내지 3단 폴리싱롤러의 간격은 가공하고자 하는 광확산판의 두께에 따라 수치 조정이 가능하다.For example, when processing a light diffusion plate having a thickness of 1.5t, when the light diffusion plate is extruded to 2.0t in the T-die 50, between the first and second stage polishing rollers and between the second and third stage polishing rollers The thickness is adjusted two times while passing through, wherein the spacing between the first and second stage polishing rollers is formed at 1.75t, and the spacing between the second and third stage polishing rollers is formed at 1.5t, thereby forming the light diffusion plate. To adjust the thickness. The interval between the first and third polishing rollers can be adjusted numerically according to the thickness of the light diffusion plate to be processed.

상기 폴리싱 3단롤러(60) 내부에는 냉각수가 공급되어 200~210℃로 압출되는 광확산판을 냉각시키게 되며, 상기 두께편차가 조정된 광확산판은 가이드콘베어(70)를 통해 이송되면서 상하부면에 보호필름이 코팅된 후, 일정길이로 코팅된다(S60 공정).Cooling water is supplied inside the polishing three-stage roller 60 to cool the light diffusion plate that is extruded at 200 to 210 ° C., and the light diffusion plate having the thickness deviation adjusted is transferred through the guide conveyor 70. After the protective film is coated on, it is coated with a predetermined length (S60 process).

상기 보호필름 코팅은 폴리싱 3단롤러(60) 내부로 공급된 냉각수에 의해 광확산판의 온도가 T다이(50)에서 압출되는 온도(200~210℃)보다는 떨어지게 되지만, 상기 폴리싱 3단롤러(60)를 통과한 광확산판의 상하부 표면은 약 50~60℃의 온도를 유지하기 때문에 보호필름이 상기 50~60℃의 표면온도를 갖는 광확산판의 상하부면에 별도의 접착제 필요없이 자연적으로 부착되며, 상기 보호필름이 코팅된 광확산판의 표면온도는 이후 상온에서 서서히 냉각된다.The protective film coating is a temperature of the light diffusion plate is lower than the temperature (200 ~ 210 ℃) extruded from the T die 50 by the cooling water supplied into the polishing three-stage roller 60, the polishing three-stage roller ( The upper and lower surfaces of the light diffusion plate passed through 60) maintain a temperature of about 50 to 60 ° C., so that the protective film is naturally required without a separate adhesive on the upper and lower surfaces of the light diffusion plate having the surface temperature of 50 to 60 ° C. The surface temperature of the light diffusion plate coated with the protective film is then slowly cooled at room temperature.

따라서, 본 발명은 광확산 수지 조성물을 이용하여 광확산성과 광투과성이 향상되는 광확산판을 제조할 수 있고, 상기 광확산판의 상하부면에는 은나노수지 또는 착색제 등과 같은 기능적 시트를 더 부가할 수 있게 된다.Therefore, the present invention can manufacture a light diffusion plate having improved light diffusivity and light transmittance using the light diffusion resin composition, and further functional sheets such as silver nano resins or colorants can be further added to upper and lower surfaces of the light diffusion plate. Will be.

본 발명은 특정의 실시 예와 관련하여 도시 및 설명하였지만, 첨부된 특허청구범위에 의해 나타난 발명의 사상 및 영역으로부터 벗어나지 않는 한도 내에서 다 양한 개조 및 변화가 가능하다는 것을 당업계에서 통상의 지식을 가진 자라면 누구나 쉽게 알 수 있을 것이다.While the invention has been shown and described with respect to particular embodiments, it will be understood that various modifications and variations can be made without departing from the spirit and scope of the invention as indicated by the appended claims. Anyone who owns it can easily find out.

도 1은 본 발명에 따른 광확산판 제조방법의 공정도.1 is a process chart of the light diffusion plate manufacturing method according to the present invention.

도 2는 본 발명에 따른 광확산판 제조방법의 블럭도.2 is a block diagram of a light diffusion plate manufacturing method according to the present invention.

< 도면의 주요 부분에 대한 부호 설명 ><Explanation of Signs of Major Parts of Drawings>

10 : 싸이로 20 : 제습건조기10: Cyro 20: Dehumidifier

30 : 압출기 30a : 호퍼30: extruder 30a: hopper

31 : 공급블럭 32 : 멀팅블럭31: Supply Block 32: Multing Block

33 : 용융블럭 34 : 압력블럭33: melting block 34: pressure block

35 : 계량블럭 40 : 피더블럭35: metering block 40: feeder block

41 : 유로 42 : 상부유로41: Euro 42: Upper Euro

43 : 하부유로 50 : T다이43: lower flow path 50: T-die

60 : 폴리싱 3단롤러 70 : 가이드콘베어60: polishing three-stage roller 70: guide conveyor

Claims (6)

광확산 수지 조성물을 이용한 광확산판 제조방법에 있어서,In the light diffusion plate manufacturing method using a light diffusion resin composition, 상기 광확산 수지 조성물을 싸이로(10)로 투입하여 제습건조기(20)에서 75~80℃의 온도로 150~180분간 습기 및 이물질을 제거하는 원료투입공정(S10)과;A raw material input step (S10) of inserting the light diffusion resin composition into the cyclone (10) to remove moisture and foreign matter for 150 to 180 minutes at a temperature of 75 to 80 ° C. in the dehumidifying dryer (20); 상기 습기 및 이물질이 제거된 광확산 수지가 압출기(30)의 호퍼(30a)로 투입되어, 상기 압출기(30)에서 용융 및 압출되는 용융공정(S20)과;A melting step (S20) in which the light diffusion resin from which the moisture and foreign substances have been removed is introduced into the hopper 30a of the extruder 30, and melted and extruded in the extruder 30; 상기 용융된 광확산 수지가 압출기(30)의 압력에 의해 피더블럭(40)의 유로(41)를 거쳐 T다이(50)로 공급되는 이송공정(S30)과;A transfer step (S30) of supplying the molten light-diffusion resin to the T-die (50) via the flow passage (41) of the feeder block (40) by the pressure of the extruder (30); 상기 T다이(50)로 공급된 용융된 광확산 수지가 유선형 유로를 갖는 T다이(50)에서 일정한 광폭의 광확산판으로 압출되는 압출공정(S40)과;An extrusion step (S40) of the molten light diffusion resin supplied to the T die 50 being extruded from the T die 50 having a streamlined flow path to a light diffusion plate having a predetermined width; 상기 T다이(50)에서 압출된 광확산판이 폴리싱 3단롤러(60)를 거치면서 두께편차가 조정되는 편차조정공정(S50)과;A deviation adjusting step (S50) of adjusting the thickness deviation while the light diffusing plate extruded from the T die (50) passes through the polishing three-stage roller (60); 상기 편차조정이 완료된 광확산판이 가이드콘베어(70)를 통해 이송되면서 상하부면에 보호필름이 코팅되고, 일정길이로 커팅되는 커팅공정(S60)을 포함하는 것을 특징으로 하는 광확산판 제조방법.The light diffusion plate is completed by the deviation adjustment is transferred to the guide conveyor (70) while the protective film is coated on the upper and lower surfaces, characterized in that it comprises a cutting step (S60) is cut to a certain length. 제 1항에 있어서,The method of claim 1, 상기 압출기(30)는 호퍼(30a) 하단에 5개의 스크류 실린더 블럭으로 분할되며, 상기 5개의 스크류 실린더 블럭은 광확산 수지가 투입되는 공급블럭(31)과, 광 확산 수지가 믹싱되는 멀팅블럭(32)과, 광확산 수지가 용융되는 용융블럭(33)과, 상기 용융된 광확산 수지가 300~400PSI 압력으로 이송되는 압력블럭(34) 및 상기 압력블럭(34)에서 이송되는 광확산 수지를 기어펌프를 이용하여 700kgf/hr으로 정량 계량하는 계량블럭(35)을 포함하는 것을 특징으로 하는 광확산판 제조방법.The extruder 30 is divided into five screw cylinder blocks at the bottom of the hopper 30a, and the five screw cylinder blocks are a supply block 31 into which the light diffusion resin is injected, and a multing block into which the light diffusion resin is mixed. 32), a melting block 33 in which the light diffusion resin is melted, a pressure block 34 in which the molten light diffusion resin is transferred at a pressure of 300 to 400 PSI, and a light diffusion resin transferred in the pressure block 34. Light diffusion plate manufacturing method characterized in that it comprises a metering block (35) for quantitative measurement at 700kgf / hr using a gear pump. 제 2항에 있어서,The method of claim 2, 상기 공급블럭(31)과 멀팅블럭(32) 및 용융블럭(33)은 각각 185~195℃의 온도로 유지되며, 상기 압력블럭(34)과 계량블럭(35)은 각각 200~210℃의 온도로 유지되는 것을 특징으로 하는 광확산판 제조방법.The supply block 31, the multing block 32 and the melting block 33 are maintained at a temperature of 185 ~ 195 ℃, respectively, the pressure block 34 and the metering block 35 is a temperature of 200 ~ 210 ℃, respectively Light diffusion plate manufacturing method characterized in that it is maintained as. 제 1항에 있어서,The method of claim 1, 상기 압출공정(S40)은 T다이(50)에서 광확산판으로 압출되는 상기 광확산판의 상하부면에 은나노수지 또는 착색제가 상기 광확산 수지 조성물 대비 0.5~1.0%의 범위로 코팅되는 코팅공정(S41)을 더 포함하는 것을 특징으로 하는 광확산판 제조방법.The extrusion process (S40) is a coating process in which a silver nano resin or a colorant is coated in a range of 0.5 to 1.0% of the light diffusion resin composition on upper and lower surfaces of the light diffusion plate that is extruded from the T die 50 to the light diffusion plate ( S41) further comprises a light diffusing plate manufacturing method. 제 1항에 있어서,The method of claim 1, 상기 피더블럭(40)은 210℃의 온도로 유지되며, 상기 광확산 수지 조성물이 이송되는 유로(41) 상하부에는 상부유로(42) 및 하부유로(43)가 형성되는 것을 특징으로 하는 광확산판 제조방법.The feeder block 40 is maintained at a temperature of 210 ℃, the light diffusion plate, characterized in that the upper passage 42 and the lower passage 43 is formed in the upper and lower passages 41, the light diffusion resin composition is transported Manufacturing method. 제 1항에 있어서,The method of claim 1, 상기 폴리싱 3단롤러(60) 내부에는 냉각수가 공급되어 광확산판을 냉각시키는 것을 특징으로 하는 광확산판 제조방법.Cooling water is supplied inside the polishing three-stage roller (60) to cool the light diffusion plate manufacturing method.
KR1020080013613A 2008-02-14 2008-02-14 Method for manufacturing of light diffusion plate KR100909897B1 (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016195283A1 (en) * 2015-06-04 2016-12-08 (주)제이피앤씨 Apparatus and method for manufacturing synthetic resin film

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000280315A (en) 1999-04-01 2000-10-10 Nippon Zeon Co Ltd Extruded molding of cyclic olefin resin and manufacture thereof
KR100502943B1 (en) 2002-07-03 2005-07-25 주식회사 우성기공 Manufacturing apparatus of environment friendship sheet
KR100618602B1 (en) 2003-05-23 2006-09-06 다이니폰 인사츠 가부시키가이샤 Method for producing optical sheet and optical sheet

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2000280315A (en) 1999-04-01 2000-10-10 Nippon Zeon Co Ltd Extruded molding of cyclic olefin resin and manufacture thereof
KR100502943B1 (en) 2002-07-03 2005-07-25 주식회사 우성기공 Manufacturing apparatus of environment friendship sheet
KR100618602B1 (en) 2003-05-23 2006-09-06 다이니폰 인사츠 가부시키가이샤 Method for producing optical sheet and optical sheet

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016195283A1 (en) * 2015-06-04 2016-12-08 (주)제이피앤씨 Apparatus and method for manufacturing synthetic resin film

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