KR102583837B1 - Roll to Roll multi coating equipment - Google Patents
Roll to Roll multi coating equipment Download PDFInfo
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- KR102583837B1 KR102583837B1 KR1020230053726A KR20230053726A KR102583837B1 KR 102583837 B1 KR102583837 B1 KR 102583837B1 KR 1020230053726 A KR1020230053726 A KR 1020230053726A KR 20230053726 A KR20230053726 A KR 20230053726A KR 102583837 B1 KR102583837 B1 KR 102583837B1
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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
- B05C1/0813—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 characterised by means for supplying liquid or other fluent material to the roller
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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
- B05C1/0821—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 characterised by driving means for rollers or work
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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
- B05C1/0826—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 the work being a web or sheets
- B05C1/0834—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 the work being a web or sheets the coating roller co-operating with other rollers, e.g. dosing, transfer rollers
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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
- B05C1/0873—Controlling means responsive to conditions of the liquid or other fluent material, of the ambient medium, of the roller or of the work
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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
- B05C5/00—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work
- B05C5/02—Apparatus in which liquid or other fluent material is projected, poured or allowed to flow on to the surface of the work the liquid or other fluent material being discharged through an outlet orifice by pressure, e.g. from an outlet device in contact or almost in contact, with the work
- B05C5/0254—Coating heads with slot-shaped outlet
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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
- B05C9/00—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important
- B05C9/08—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation
- B05C9/14—Apparatus or plant for applying liquid or other fluent material to surfaces by means not covered by any preceding group, or in which the means of applying the liquid or other fluent material is not important for applying liquid or other fluent material and performing an auxiliary operation the auxiliary operation involving heating or cooling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/02—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air
- F26B3/04—Drying solid materials or objects by processes involving the application of heat by convection, i.e. heat being conveyed from a heat source to the materials or objects to be dried by a gas or vapour, e.g. air the gas or vapour circulating over or surrounding the materials or objects to be dried
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F26—DRYING
- F26B—DRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
- F26B3/00—Drying solid materials or objects by processes involving the application of heat
- F26B3/32—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action
- F26B3/34—Drying solid materials or objects by processes involving the application of heat by development of heat within the materials or objects to be dried, e.g. by fermentation or other microbiological action by using electrical effects
- F26B3/347—Electromagnetic heating, e.g. induction heating or heating using microwave energy
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- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Microbiology (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Biotechnology (AREA)
- Molecular Biology (AREA)
- Coating Apparatus (AREA)
Abstract
본 발명은 롤투롤 멀티 코팅장비에 관한 것으로, 롤 상태로 권취된 필름(F)을 공급하는 제1 필름 공급부(110); 상기 제1 필름 공급부(110)에서 공급된 필름(F) 표면에 1차 코팅을 실시하는 제1 코팅부(120), 1차 코팅이 이루어진 필름(F)을 와인딩하는 제2 필름 공급부(130); 상기 제1,2필름 공급부(110,130) 사이에 설치되는 건조부(140); 상기 제2 필름 공급부(130)와 건조부(140) 사이에 설치되는 제2 코팅부(150); 상기 제1 필름 공급부(110)와 건조부(140) 사이에 설치되는 제3 코팅부(160);를 포함하며, 롤 상태로 권취된 필름을 언와인딩 하면서 1차 코팅과 건조공정을 실시하고, 반대 방향으로 리와인딩 하면서 2차 코팅과 건조공정을 실시하며, 다시 원래의 방향으로 언와인딩 하면서 3차 코팅과 건조공정을 실시한다.The present invention relates to a roll-to-roll multi-coating equipment, comprising: a first film supply unit 110 that supplies a film (F) wound in a roll; A first coating unit 120 that applies a primary coating to the surface of the film (F) supplied from the first film supply unit 110, and a second film supply unit 130 that winds the film (F) on which the primary coating has been performed. ; A drying unit 140 installed between the first and second film supply units 110 and 130; A second coating unit 150 installed between the second film supply unit 130 and the drying unit 140; It includes a third coating unit 160 installed between the first film supply unit 110 and the drying unit 140, and performing a primary coating and drying process while unwinding the film wound in a roll state, The second coating and drying process is performed while rewinding in the opposite direction, and the third coating and drying process is performed while unwinding in the original direction again.
Description
본 발명은 롤 상태로 권취된 필름을 언와인딩 하면서 1차 코팅과 건조공정을 실시하고, 반대 방향으로 리와인딩 하면서 2차 코팅과 건조공정을 실시하며, 다시 원래의 방향으로 언와인딩 하면서 3차 코팅과 건조공정을 실시할 수 있도록 구성된 롤투롤 멀티 코팅장비에 관한 것이다.In the present invention, a first coating and drying process is performed by unwinding a film wound in a roll, a second coating and drying process is performed by rewinding in the opposite direction, and a third coating is performed by unwinding in the original direction again. It relates to roll-to-roll multi-coating equipment configured to perform a drying process.
이른바, 탄소 중립 시대가 도래하여 화석에너지 비중을 줄이고 재생에너지 인프라가 증가함에 따라 태양광 발전 설비의 관심도가 어느 때보다도 높아지고 있다. 한편, 유연성, 경량성, 안정성 등의 특성이 있는 유기/페로브스카이트 태양전지의 고효율화로 인해 실험실 규모에서는 이미 실리콘 태양전지의 효율을 뛰어 넘었으며, 차세대 태양전지의 양산성 확보가 요구되고 있다. 특히, 차세대 태양전지는 기판의 유연 특성을 활용하여 생산성을 확보할 수 있는 롤투롤(Roll to Roll) 장비를 적용할 수 있으며, 롤투롤 장비의 적용 시 대량의 생산량 확보가 가능할 것으로 기대된다.With the advent of the so-called carbon neutral era, the proportion of fossil energy is reduced and renewable energy infrastructure increases, interest in solar power generation facilities is increasing more than ever. Meanwhile, due to the high efficiency of organic/perovskite solar cells, which have characteristics such as flexibility, lightness, and stability, they have already surpassed the efficiency of silicon solar cells at the laboratory scale, and there is a need to secure mass production of next-generation solar cells. . In particular, next-generation solar cells can use roll-to-roll equipment that can secure productivity by utilizing the flexible characteristics of the substrate, and it is expected that mass production will be possible when roll-to-roll equipment is applied.
본 발명과 관련된 종래기술로 특허문헌 1의 '멀티 코팅 장치'는 플렉서블한 필름에 그라비아 코팅, 마이크로 그라비아 코팅, 콤마 코팅 등의 멀티 코팅이 가능하고, 건조와 라미네이팅 후 리와인딩하여 하나의 장치로 여러 가지 멀티 코팅이 이루어질 수 있는 멀티 코팅 장치에 관한 것인데, 이는 일 방향으로만 언와인딩하면서 필름 위에 코팅을 하는 구조로 이루어져 있어 다층 코팅을 위해서는 라인 상에 별도로 분리된 건조기(메인 건조기와 보조 건조기)가 2대 이상 구비되어 있어야 하므로 장치의 스케일이 커지고 복잡해지게 되는 문제점이 있었으며, 열풍에 의한 단일 건조방식으로 이루어져 있어 건조효율이 낮은 단점이 있었다.As a prior art related to the present invention, the 'multi-coating device' of Patent Document 1 is capable of multi-coating flexible films such as gravure coating, micro gravure coating, and comma coating, and rewinding after drying and laminating to form multiple coatings in one device. This is about a multi-coating device that can perform multi-coating. It has a structure that coats the film while unwinding in only one direction. For multi-layer coating, separate dryers (main dryer and auxiliary dryer) are required on the line. There was a problem in that the scale of the device became large and complicated because it had to be equipped with two or more units, and it had the disadvantage of low drying efficiency because it consisted of a single drying method using hot air.
또, 특허문헌 2의 '롤투롤 로터리 스크린 인쇄장치 및 그를 이용한 유기태양전지 제조방법'은 로터리 스크린에 의한 단일 코팅방식이고, 건조기 1대를 사용 시 언와인딩과 리와인딩을 거치면서 2중의 코팅작업을 실시할 수 있었을 뿐이었다.In addition, Patent Document 2's 'Roll-to-roll rotary screen printing device and organic solar cell manufacturing method using the same' is a single coating method using a rotary screen, and when using a single dryer, a double coating operation is performed through unwinding and rewinding. It was only possible to carry out.
특허문헌 3의 '인라인형 멀티 코팅장치'는 롤투롤 형태로 공급되는 필름의 일면에 반복하여 코팅층을 적층 시킬 때, 제조 단가를 낮추고, 품질을 향상시키기 위한 것으로, 롤에 권취된 제1 필름을 공급하는 공급부와 상기 공급부로부터 공급되는 제1 필름에 1차 코팅을 실시하는 제1 코팅부와 상기 제1 코팅부를 통해 코팅된 제1 필름을 건조하는 제1 건조부와 상기 제1 건조부를 통해 건조된 1차 코팅 필름에 2차 코팅을 실시하는 제2 코팅부와 상기 제2 코팅부를 통해 다단으로 코팅된 제1 필름을 건조하는 제2 건조부를 포함하여 인라인 형태로 연속 공급되는 필름에 다단으로 코팅을 하도록 되어 있는바, 언와인딩에 의한 일방향으로만 코팅이 가능한 방식이고, 다층 코팅을 위해서는 분리된 건조기가 코팅부의 수만큼 필요했으므로 장치의 스케일이 커지고 구조가 복잡해지게 되는 문제점이 있었다.The 'in-line multi-coating device' of Patent Document 3 is designed to reduce manufacturing costs and improve quality when repeatedly laminating a coating layer on one side of a film supplied in roll-to-roll form. The first film wound on a roll is A supply unit that supplies a supply, a first coating unit that applies a primary coating to the first film supplied from the supply unit, a first drying unit that dries the first film coated through the first coating unit, and drying through the first drying unit. A multi-stage coating on a film continuously supplied in-line, including a second coating unit that applies a secondary coating to the first coating film and a second drying unit that dries the first film coated in multiple stages through the second coating unit. As it is designed to do so, coating can only be done in one direction by unwinding, and for multi-layer coating, separate dryers were needed for the number of coating parts, so there was a problem in that the scale of the device became large and the structure became complicated.
본 발명은 상술한 문제점을 해결하기 위하여 안출된 것으로, 본 발명의 목적은 롤투롤 방식으로 필름을 정,역방향으로 언와인딩 및 리와인딩을 반복하면서 3중 코팅을 실시할 수 있도록 하되 복합 열원으로 이루어진 건조기 1대만으로 각각의 코팅공정 후 건조공정을 실시할 수 있도록 하여 장치의 스케일을 최소화하면서도 효과적인 다중 코팅이 가능하도록 하는 롤투롤 멀티 코팅장비를 제공하는데 있다.The present invention was devised to solve the above-mentioned problems, and the purpose of the present invention is to enable triple coating by repeating unwinding and rewinding the film in the forward and reverse directions in a roll-to-roll method, and to provide a coating method consisting of a composite heat source. The aim is to provide roll-to-roll multi-coating equipment that enables effective multi-coating while minimizing the scale of the device by allowing a drying process to be performed after each coating process with just one dryer.
상기한 목적을 달성하기 위하여 본 발명은 롤 상태로 권취된 필름을 공급하는 제1 필름 공급부; 상기 제1 필름 공급부에서 공급된 필름 표면에 1차 코팅을 실시하는 제1 코팅부, 1차 코팅이 이루어진 필름을 와인딩하는 제2 필름 공급부; 상기 제1,2필름 공급부 사이에 설치되는 건조부; 상기 제2 필름 공급부와 건조부 사이에 설치되는 제2 코팅부; 상기 제1 필름 공급부와 건조부 사이에 설치되는 제3 코팅부;를 포함하며,In order to achieve the above object, the present invention includes a first film supply unit that supplies a film wound in a roll; a first coating unit that applies a primary coating to the surface of the film supplied from the first film supply unit, and a second film supply unit that winds the film on which the primary coating has been applied; A drying unit installed between the first and second film supply units; a second coating unit installed between the second film supply unit and the drying unit; It includes a third coating unit installed between the first film supply unit and the drying unit,
제1 필름 공급부에서 필름이 제2 필름 공급부로 공급되면서 제1 코팅부에서 1차 코팅 후 건조부에서 건조가 이루어져 제2 필름 공급부에 권취되고, 제2 필름 공급부에서 필름이 제1 필름 공급부로 상기와는 반대 방향으로 공급되면서 제2 코팅부에서 2차 코팅 후 건조부에서 건조가 이루어져 제1 필름 공급부에 권취되며, 제1 필름 공급부에서 필름이 다시 제2 필름 공급부로 공급되면서 제3 코팅부에서 3차 코팅 후 건조부에서 건조가 이루어져 제2 필름 공급부에 권취되도록 함으로써 3중 코팅공정이 수행될 수 있도록 한 롤투롤 멀티 코팅장비를 제공한다.As the film is supplied from the first film supply unit to the second film supply unit, it is first coated in the first coating unit, dried in the drying unit, and wound up in the second film supply unit. The film is then transferred to the first film supply unit from the second film supply unit. Supplying in the opposite direction, the second coating is done in the second coating section and then dried in the drying section and wound up in the first film supply section. As the film is supplied from the first film supply section again to the second film supply section, it is applied in the third coating section. A roll-to-roll multi-coating equipment is provided that allows a triple coating process to be performed by drying the film in the drying unit after the third coating and winding it in the second film supply unit.
본 발명의 실시 예에 의한 롤투롤 멀티 코팅장비는 예를 들면 유기/페로브스카이트 태양전지의 코팅공정은 물론, 반도체나, 이차전지, 디스플레이 등의 분야에 효과적으로 사용될 수 있고, 다중 코팅공정을 컴팩트화 된 하나의 장비에서 수행할 수 있으므로 대량 생산 시 효율성을 극대화할 수 있는 효과가 있다.The roll-to-roll multi-coating equipment according to an embodiment of the present invention can be effectively used in, for example, the coating process of organic/perovskite solar cells, as well as fields such as semiconductors, secondary batteries, and displays, and can be used for multiple coating processes. Since it can be performed with one compact equipment, it has the effect of maximizing efficiency during mass production.
도 1은 본 발명에 의한 롤투롤 멀티 코팅장비의 전체 구성도,
도 2는 본 발명에 의한 롤투롤 멀티 코팅장비에서의 다중 코팅공정을 도시한 블록 다이어그램,
도 3은 도 1의 좌측부 확대도,
도 4는 도 1의 우측부 확대도,
도 5는 도 1의 중간부 확대도,
도 6은 본 발명의 멀티 코팅장비에서 필름 위에 3중 코팅이 이루어진 상태를 도시한 단면도이다.1 is an overall configuration diagram of the roll-to-roll multi-coating equipment according to the present invention;
Figure 2 is a block diagram showing the multiple coating process in the roll-to-roll multi-coating equipment according to the present invention;
Figure 3 is an enlarged view of the left side of Figure 1;
Figure 4 is an enlarged view of the right side of Figure 1;
Figure 5 is an enlarged view of the middle part of Figure 1;
Figure 6 is a cross-sectional view showing a state in which triple coating is performed on the film in the multi-coating equipment of the present invention.
이하, 본 발명을 한정하지 않는 바람직한 실시 예를 첨부된 도면에 의하여 상세히 설명하기로 한다.Hereinafter, preferred embodiments that do not limit the present invention will be described in detail with reference to the attached drawings.
도 1 내지 도 5에는 본 발명의 일 실시 예에 의한 롤투롤 멀티 코팅장비(100)가 도시되어 있는데, 이는 롤 상태로 권취된 필름(F)을 공급하는 제1 필름 공급부(110); 상기 제1 필름 공급부(110)에서 공급된 필름(F) 표면에 1차 코팅을 실시하는 제1 코팅부(120), 1차 코팅이 이루어진 필름(F)을 와인딩하는 제2 필름 공급부(130); 상기 제1,2필름 공급부(110,130) 사이에 설치되는 건조부(140); 상기 제2 필름 공급부(130)와 건조부(140) 사이에 설치되는 제2 코팅부(150); 상기 제1 필름 공급부(110)와 건조부(140) 사이에 설치되는 제3 코팅부(160);를 포함하여 이루어져 있다.1 to 5 show a roll-to-roll multi-coating equipment 100 according to an embodiment of the present invention, which includes a first film supply unit 110 that supplies a film (F) wound in a roll state; A first coating unit 120 that applies a primary coating to the surface of the film (F) supplied from the first film supply unit 110, and a second film supply unit 130 that winds the film (F) on which the primary coating has been performed. ; A drying unit 140 installed between the first and second film supply units 110 and 130; A second coating unit 150 installed between the second film supply unit 130 and the drying unit 140; It includes a third coating unit 160 installed between the first film supply unit 110 and the drying unit 140.
이에 의해 제1 필름 공급부(110)에서 필름(F)이 제2 필름 공급부(130)로 정방향으로 공급되면서 1차 코팅부(120)에서 1차 코팅 후 건조부(140)에서 건조가 이루어져 제2 필름 공급부(130)에 권취되고, 제2 필름 공급부(130)에서 필름(F)이 제1 필름 공급부(110)로 상기와는 반대 방향으로 공급되면서 제2 코팅부(150)에서 2차 코팅 후 건조부(140)에서 건조가 이루어져 제1 필름 공급부(110)에 권취되며, 제1 필름 공급부(110)에서 필름(F)이 다시 제2 필름 공급부(130)로 정방향으로 공급되면서 제3 코팅부(160)에서 3차 코팅 후 건조부(140)에서 건조가 이루어져 제2 필름 공급부(130)에 권취되도록 함으로써 하나의 장비에서 3중 코팅공정이 일관적으로 수행될 수 있도록 되어 있다.As a result, the film (F) is supplied from the first film supply unit 110 to the second film supply unit 130 in the forward direction, and after the first coating in the first coating unit 120, it is dried in the drying unit 140 to form a second film. It is wound on the film supply unit 130, and the film (F) is supplied from the second film supply unit 130 to the first film supply unit 110 in the opposite direction as above, and after secondary coating in the second coating unit 150. It is dried in the drying unit 140 and wound on the first film supply unit 110, and the film (F) is supplied from the first film supply unit 110 in the forward direction again to the second film supply unit 130, forming a third coating unit. After the third coating at 160, drying is performed in the drying unit 140 and wound on the second film supply unit 130, so that the triple coating process can be consistently performed in one equipment.
상기 제1 필름 공급부(110)는 도 3의 확대도에서 알 수 있는 바와 같이 롤 상태로 권취된 필름(F)의 중앙 원통부를 외팔보 형태의 에어 척(111 : Air Chuck) 또는 드럼 척(Drum Chuck)으로 잡고, 서보 전동 모터 및 자동 장력 제어장치(112 : Auto-Tension Controller)를 사용하여 일정한 장력을 유지하면서 필름(F)을 원활하게 언와인딩 및 리와인딩하는 장치이다.As can be seen in the enlarged view of FIG. 3, the first film supply unit 110 is a cantilever-shaped air chuck (111: Air Chuck) or drum chuck (Drum Chuck) on the central cylindrical part of the film (F) wound in a roll state. ), and uses a servo electric motor and an automatic tension controller (112: Auto-Tension Controller) to smoothly unwind and rewind the film (F) while maintaining a constant tension.
한편, 상기 제1 필름 공급부(110)의 선단에는 얼라인 유지 장치(114)를 설치하여 언와인딩 시에는 필름(F)이 얼라인을 유지하면서 일정하게 공급 가능하도록 되어 있으며, 리와인딩 시에는 필름(F)이 얼라인을 유지하면서 일정하게 권취가 가능하도록 되어 있다.Meanwhile, an alignment maintaining device 114 is installed at the tip of the first film supply unit 110 to enable constant supply of the film F while maintaining its alignment during unwinding, and during rewinding, the film F can be supplied at a constant rate. (F) is designed to allow constant winding while maintaining alignment.
상기 제1 필름 공급부(110)는 1차 코팅 시에는 언와인딩, 2차 코팅 시에는 리와인딩, 3차 코팅 시에는 언와인딩 기능을 수행한다.The first film supply unit 110 performs an unwinding function during the first coating, a rewinding function during the second coating, and an unwinding function during the third coating.
상기 제1 코팅부(120)는 도 3의 확대도에서 알 수 있는 바와 같이 마이크로 그라비아 코팅장치로 이루어져 있는데, 이는 2개의 상부 롤(121,122)에 의하여 필름(F)이 이송되고 1개의 하부 롤(123)은 코팅 용액통(124)에 일부가 침전된 상태로 회전함으로써 롤(123) 표면에 얇은 코팅층을 형성하고 그 코팅층을 필름(F) 하부에 전이시켜 코팅하는 장치이다.As can be seen in the enlarged view of FIG. 3, the first coating unit 120 consists of a micro gravure coating device, in which the film F is transported by two upper rolls 121 and 122 and one lower roll ( 123) is a device that forms a thin coating layer on the surface of the roll 123 by rotating it with a portion deposited in the coating solution tank 124 and transfers the coating layer to the lower part of the film F.
상기 제1 코팅부(120)는 표준형 마이크로-그라비아 롤(micro-gravure roll)을 적용하여 다양한 코팅 두께의 구현이 가능하고 정밀 마이크로 기어펌프 및 모터로 토출량 제어가 가능하여 일정한 품질로 연속 코팅이 가능하다.The first coating unit 120 can implement a variety of coating thicknesses by applying a standard micro-gravure roll, and can control the discharge amount with a precision micro gear pump and motor, enabling continuous coating with consistent quality. do.
도면 중 부호 126은 코팅 용액 탱크이다.In the drawing, reference numeral 126 denotes a coating solution tank.
본 실시 예에서, 상기 제2 필름 공급부(130)는 도 4에 도시된 바와 같이 제1 필름 공급부(110)와 동일한 구조로 이루어져 있으며, 1차 코팅 시에는 와인딩, 2차 코팅 시에는 언와인딩, 3차 코팅 시에는 리와인딩 기능을 수행한다.In this embodiment, the second film supply unit 130 has the same structure as the first film supply unit 110 as shown in FIG. 4, and is wound during the first coating, unwinded during the second coating, During the third coating, a rewinding function is performed.
상기 제2 필름 공급부(130)도 롤 상태로 권취된 필름(F)의 중앙 원통부를 외팔보 형태의 에어 척(131 : Air Chuck) 또는 드럼 척(Drum Chuck)으로 잡고, 서보 전동 모터 및 자동 장력 제어장치(132 : Auto-Tension Controller)를 사용하여 일정한 장력을 유지하면서 필름(F)을 원활하게 언와인딩 및 리와인딩하는 장치이다.The second film supply unit 130 also holds the central cylindrical part of the film F wound in a roll state with a cantilever-shaped air chuck 131 or drum chuck, and uses a servo electric motor and automatic tension control. This is a device that smoothly unwinds and rewinds the film (F) while maintaining a constant tension using a device (132: Auto-Tension Controller).
한편, 상기 제2 필름 공급부(130)의 선단에는 얼라인 유지 장치(134)를 설치하여 언와인딩 시에는 필름(F)이 얼라인을 유지하면서 일정하게 공급 가능하도록 되어 있으며, 리와인딩 시에는 필름(F)이 얼라인을 유지하면서 일정하게 권취가 가능하도록 되어 있다.Meanwhile, an alignment maintaining device 134 is installed at the tip of the second film supply unit 130 to enable constant supply of the film F while maintaining its alignment during unwinding, and during rewinding, the film F can be supplied consistently. (F) is designed to allow constant winding while maintaining alignment.
본 실시 예에서, 상기 건조부(140)는 도 5에 도시된 바와 같이 제1 필름 공급부(110)에서 제2 필름 공급부(130) 까지 연속으로 이어진 터널형으로 이루어져 있는데, 상기 건조부(140)의 앞단 및 뒤단 측 비교적 짧은 구간에 설치되는 마이크로웨이브 건조장치(142,144)는 1차 건조 역할을 수행하고, 중앙 측 비교적 긴 구간에 설치되는 터널형 건조장치(146)는 2차 건조 역할을 수행하여 필름(F) 표면에 코팅된 코팅 용액을 효율적으로 건조할 수 있도록 적외선 또는 열풍 방식이 혼합된 복합 건조장치로 이루어져 있다.In this embodiment, the drying unit 140 is formed in the form of a tunnel continuously extending from the first film supply unit 110 to the second film supply unit 130, as shown in Figure 5. The drying unit 140 The microwave drying devices 142 and 144 installed in relatively short sections of the front and rear ends perform a primary drying role, and the tunnel-type drying device 146 installed in a relatively long section of the center performs a secondary drying role. It consists of a complex drying device that combines infrared or hot air methods to efficiently dry the coating solution coated on the surface of the film (F).
본 실시 예에서 마이크로웨이브 건조장치(142,144)는 건조 대상물인 코팅액의 내부로부터의 가열(Volumetric heating) 원리를 이용하는 방법으로, 건조 대상물 내부에 기공을 형성하여 수분을 빠르게 외부로 밀어내는 작용을 함으로써 건조 속도가 빨라 에너지 효율이 좋다.In this embodiment, the microwave drying devices 142 and 144 are a method that uses the principle of volumetric heating from the inside of the coating liquid, which is the object to be dried, by forming pores inside the object to be dried and quickly pushing moisture out. It is fast and has good energy efficiency.
적외선 건조방식은 코팅 소재 상부 및 하부와 일정한 거리를 유지하여 열을 가할 수 있는 IR 램프 등을 이용한 히팅 플레이트(146a)를 설치하여 코팅 표면층에 열을 전달함으로써 수분을 증발시켜 건조하는 방식으로 건조구간에 여러 개의 히팅 플레이트를 설치하여 히팅 플레이트별로 온도제어가 가능하도록 함으로써 급격한 온도 변화로 인한 건조 불량이나 필름의 물리적인 변형을 방지할 수 있도록 되어 있다. The infrared drying method installs a heating plate (146a) using an IR lamp that can apply heat by maintaining a certain distance from the top and bottom of the coating material, and transfers heat to the coating surface layer to evaporate moisture and dry it. By installing multiple heating plates to control the temperature for each heating plate, it is possible to prevent poor drying or physical deformation of the film due to rapid temperature changes.
한편, 열풍 건조방식은 도면상에는 구체적으로 도시되어 있지 않으나 코팅층 표면에 고온의 공기를 통해 코팅 표면층에 열을 가하여 수분을 증발시키는 방식으로 균일한 건조를 위하여 가열된 공기의 공급 및 순환, 배출이 원활한 구조로 이루어져야 한다.Meanwhile, the hot air drying method, although not specifically shown in the drawing, is a method of evaporating moisture by applying heat to the surface of the coating layer through high-temperature air to ensure smooth supply, circulation, and discharge of heated air for uniform drying. It must be structured.
도면 중 부호 148은 배기구이다.In the drawing, symbol 148 is an exhaust port.
본 실시 예에서, 상기 제2 코팅부(150)는 도 4에 도시된 바와 같이, 슬롯 코팅장치로 이루어져 있는바, 이는 슬롯(152)을 통하여 공급된 코팅액이 다이 립(154; Die lip)과 필름(F) 사이에서 코팅 비드(Bead;코팅액이 소재와 다이(Die) 사이에 채워진 부분)를 형성한 후 필름(F)에 코팅되는 구조의 장치이다.In this embodiment, the second coating unit 150 is composed of a slot coating device, as shown in FIG. 4, in which the coating liquid supplied through the slot 152 is applied to the die lip 154 and the die lip 154. It is a device that forms coating beads between the film (F) (the part where the coating solution is filled between the material and the die) and then coats the film (F).
도면 중 부호 166은 코팅 용액 탱크이다.In the drawing, reference numeral 166 denotes a coating solution tank.
상기 제2 코팅부(150)에서는 도시 생략된 코팅 용액 정밀 공급 펌프가 코팅 용액의 유량 변화를 최소화하고 용량을 조절하여 필름 표면에 안정적으로 코팅막을 형성할 수 있도록 해준다.In the second coating unit 150, a precision supply pump of the coating solution (not shown) minimizes changes in the flow rate of the coating solution and adjusts the capacity to stably form a coating film on the film surface.
본 실시 예에서, 상기 제3 코팅부(160)는 도 3에 도시된 바와 같이, 스프레이식으로 이루어져 있는데, 정량·정밀 마이크로 기어펌프를 통하여 공급된 코팅액이 노즐 중앙부에서 분사되고, 노즐 중앙부 주변으로는 에어가 분사되는 저압 분사 방식의 2유체(Two-fluid)형 스프레이 노즐(162)을 통과하여 필름(F) 표면에 안정적으로 코팅막을 형성시키는 장치이다. In this embodiment, the third coating unit 160 is of a spray type, as shown in FIG. 3, and the coating liquid supplied through a fixed-quantity/precision micro gear pump is sprayed from the center of the nozzle and sprayed around the center of the nozzle. is a low-pressure injection method in which air is sprayed. This is a device that stably forms a coating film on the surface of the film (F) by passing through a two-fluid type spray nozzle (162).
상기 제3 코팅부(160)는 스프레이 노즐(162)의 이송속도와, 코팅액의 분사 유량, 분사 압력 및 필름(F)과의 이격 높이 등을 조절하여 필름(F) 표면에 일정한 코팅막을 형성할 수 있다.The third coating unit 160 forms a constant coating film on the surface of the film (F) by adjusting the transfer speed of the spray nozzle 162, the spray flow rate of the coating liquid, the spray pressure, and the separation height from the film (F). You can.
상술한 제1,2,3 코팅부(120,150,160)는 본 발명이 속한 기술분야에서 주지하는 바이므로 이에 대한 구체적인 구조에 대한 설명이나 도시는 생략하기로 한다.Since the above-mentioned first, second, and third coating parts 120, 150, and 160 are well known in the technical field to which the present invention pertains, description or illustration of their specific structures will be omitted.
한편, 제1,2 필름 공급부(110,130) 측에는 각각 필름(F) 이송 시 장력을 안정적으로 유지하기 위한 웹가이딩 모듈(170,180)이 구비되어 있는데, 이는 제1 필름 공급부(110)에서 제2 필름 공급부(130)로의 필름 이송 시('정방향'으로 칭함)에는 에어 실린더의 수축에 의해 제1 필름 공급부(110) 측에 위치한 웹가이딩 모듈(170)은 필름(F)과 이격되고, 제2 필름 공급부(130) 측에 위치한 웹가이딩 모듈(180)은 필름(F)과 밀착되며, 역방향 동작 시에는 제2 필름 공급부(130) 측에 위치한 웹가이딩 모듈(180)은 필름(F)과 이격되고, 제1 필름 공급부(110) 측에 위치한 웹가이딩 모듈(170)은 필름(F)과 밀착되게 하여 권취되는 롤이 일정한 장력을 유지하면서 작동되도록 함으로써 필름이 편심되게 권취되지 않고 일정하게 권취되도록 해준다.Meanwhile, the first and second film supply units 110 and 130 are respectively equipped with web guiding modules 170 and 180 to maintain the tension stably when transferring the film F, which allows the second film to be transferred from the first film supply unit 110. When transferring the film to the supply unit 130 (referred to as 'forward direction'), the web guiding module 170 located on the first film supply unit 110 is spaced apart from the film (F) due to contraction of the air cylinder, and the second web guiding module 170 is spaced apart from the film F. The web guiding module 180 located on the film supply unit 130 side is in close contact with the film (F), and when operating in the reverse direction, the web guiding module 180 located on the second film supply unit 130 side is in close contact with the film (F). The web guiding module 170, which is spaced apart from and located on the side of the first film supply unit 110, is in close contact with the film (F) so that the rolled roll operates while maintaining a constant tension, so that the film is not wound eccentrically and is kept constant. It allows it to be wound tightly.
이와 같이 구성된 본 실시 예에 의한 롤투롤 멀티 코팅장비는 도 2의 블록 다이어그램으로 도시된 바와 같이 제1 필름 공급부(110)에서 제2 필름 공급부(130)로 필름(F)이 정방향으로 공급되면서 필름(F) 위에 제1 코팅부(120)를 지나면서 마이크로 그라비아 코팅에 의한 1차 코팅층(C1)이 형성된 후 건조부(140)를 거쳐 제2 필름 공급부(130)에 권취되게 된다.In the roll-to-roll multi-coating equipment according to this embodiment configured as described above, the film F is supplied in the forward direction from the first film supply unit 110 to the second film supply unit 130, as shown in the block diagram of FIG. (F) A first coating layer (C1) is formed by micro gravure coating as it passes through the first coating unit 120, and then passes through the drying unit 140 and is wound around the second film supply unit 130.
다음으로는 제2 필름 공급부(130)에서 제1 필름 공급부(110)로 필름(F)이 역방향으로 공급되면서 1차 코팅층(C1)이 형성된 필름(F)이 제2 코팅부(150)를 지나면서 슬롯 코팅에 의한 2차 코팅층(C2)이 형성된 후 건조부(140)를 거쳐 제1 필름 공급부(110)에 권취되게 된다.Next, the film (F) is supplied in the reverse direction from the second film supply unit 130 to the first film supply unit 110, and the film F on which the first coating layer (C1) is formed passes through the second coating unit 150. After the secondary coating layer (C2) is formed by slot coating, it is wound on the first film supply unit 110 through the drying unit 140.
마지막으로, 제1 필름 공급부(110)에서 제2 필름 공급부(130)로 필름(F)이 다시 정방향으로 공급되면서 1,2차 코팅층(C1,C2)이 형성된 필름(F)이 제3 코팅부(160)를 지나면서 스프레이 코팅에 의한 3차 코팅층(C3)이 형성된 후 건조부(140)를 거쳐 제2 필름 공급부(130)에 권취되면서 3중 코팅작업이 완료된다.Finally, as the film (F) is supplied again in the forward direction from the first film supply unit 110 to the second film supply unit 130, the film (F) on which the first and second coating layers (C1, C2) are formed is supplied to the third coating unit. After passing through 160, the third coating layer C3 is formed by spray coating, and then is wound around the second film supply unit 130 through the drying unit 140, thereby completing the triple coating operation.
상술한 설명에서는 1차 코팅층(C1)이 제1 코팅부(120)에서의 마이크로 그라비아 코팅으로 설명되었으나, 본 발명은 이에 한정되지 않고, 1차 코팅층(C1)이 제3 코팅부(160)에서의 스프레이 코팅으로 실시된 후, 3차 코팅층(C3)이 마이크로 그라비아 코팅으로 변경될 수도 있음은 물론이다.In the above description, the first coating layer (C1) has been described as a micro gravure coating in the first coating part 120, but the present invention is not limited thereto, and the first coating layer (C1) has been described as a micro gravure coating in the third coating part 160. Of course, after being carried out by spray coating, the third coating layer (C3) may be changed to micro gravure coating.
이상 설명한 바와 같이, 본 실시 예에 의하면 제1,2,3 코팅부와 하나의 복합 열원 건조부로 이루어진 콤팩트화된 하나의 장비에서 정방향 권취와 역방향 권취를 반복하면서 1차 코팅 후 건조, 2차 코팅 후 건조 및 3차 코팅 후 건조과정을 거쳐 3중 코팅이 이루어지게 되므로 장비의 스케일을 최소화하면서도 효과적인 다중 코팅이 가능하게 되는 이점이 있다.As described above, according to this embodiment, the first coating, drying, and second coating are performed by repeating forward and reverse winding in a compact equipment consisting of the first, second, and third coating units and one composite heat source drying unit. Since triple coating is performed through post-drying and third coating followed by a drying process, there is an advantage in that effective multiple coating is possible while minimizing the scale of the equipment.
100 : 롤투롤 멀티 코팅장비
110 : 제1 필름 공급부
111 : 에어 척
112 : 서보 전동 모터 및 자동 장력 제어장치
114 : 얼라인 유지 장치
120 : 제1 코팅부
121,122 : 상부 롤
123 : 하부 롤
124 : 코팅 용액통
126 : 코팅 용액 탱크
130 : 제2 필름 공급부
131 : 에어 척
132 : 서보 전동 모터 및 자동 장력 제어장치
134 : 얼라인 유지 장치
140 : 건조부
142,144 : 마이크로웨이브 건조장치
146 : 터널형 건조장치
146a : 히팅 플레이트
148 : 배기구
150 : 제2 코팅부
152 : 슬롯
154 : 다이 립
160 : 제3 코팅부
162 : 스프레이 노즐
166 : 코팅 용액 탱크
170,180 : 웹가이딩 모듈
F : 필름
C1 : 제1 코팅층
C2 : 제2 코팅층
C3 : 제3 코팅층100: Roll-to-roll multi-coating equipment
110: first film supply unit
111: air chuck
112: Servo electric motor and automatic tension control device
114: Alignment maintenance device
120: first coating part
121,122: Upper roll
123: lower roll
124: Coating solution container
126: Coating solution tank
130: second film supply unit
131: air chuck
132: Servo electric motor and automatic tension control device
134: Alignment maintenance device
140: drying section
142,144: Microwave drying device
146: Tunnel type drying device
146a: Heating plate
148: exhaust port
150: second coating part
152: slot
154: die lip
160: third coating part
162: Spray nozzle
166: Coating solution tank
170,180: Web guiding module
F: film
C1: first coating layer
C2: second coating layer
C3: Third coating layer
Claims (4)
상기 제1,2 필름 공급부 측에는 각각 필름 이송 시 장력을 안정적으로 유지하기 위한 웹가이딩 모듈이 구비되어 제1 필름 공급부에서 제2 필름 공급부로의 정방향 필름 이송 시에는 제1 필름 공급부 측에 위치한 웹가이딩 모듈은 필름과 이격되고, 제2 필름 공급부 측에 위치한 웹가이딩 모듈은 필름과 밀착되며, 역방향 동작 시에는 제2 필름 공급부 측에 위치한 웹가이딩 모듈은 필름과 이격되고, 제1 필름 공급부 측에 위치한 웹가이딩 모듈은 필름과 밀착되도록 동작하며,
상기 건조부는 마이크로웨이브 건조와 열 건조방식이 조합된 복합형으로 이루어지되 제1 필름 공급부에서 제2 필름 공급부까지 연속으로 터널형으로 이루어지고, 상기 건조부의 앞단 및 뒤단 측에는 각각 마이크로 웨이브 건조장치가 설치되어 정,역방향 코팅시 1차 건조 역할을 수행하고, 앞단 및 뒤단 사이의 열 건조방식 터널형 건조장치는 2차 건조역할을 수행하며,
제1 필름 공급부에서 필름이 제2 필름 공급부로 공급되면서 1차 코팅부에서 1차 코팅 후 건조부에서 건조가 이루어져 제2 필름 공급부에 권취되고, 제2 필름 공급부에서 필름이 제1 필름 공급부로 상기와는 반대 방향으로 공급되면서 제2 코팅부에서 2차 코팅 후 건조부에서 건조가 이루어져 제1 필름 공급부에 권취되며, 제1 필름 공급부에서 필름이 다시 제2 필름 공급부로 공급되면서 제3 코팅부에서 3차 코팅 후 건조부에서 건조가 이루어져 제2 필름 공급부에 권취되도록 함으로써 하나의 장치에서 3중 코팅공정이 수행될 수 있도록 한 것을 특징으로 하는 롤투롤 멀티 코팅장비.
A first film supply unit that supplies a film wound in a roll state; a first coating unit that applies a primary coating to the first film supply unit, and a second film supply unit that winds the film on which the primary coating has been performed; A drying unit installed between the first and second film supply units; a second coating unit installed between the second film supply unit and the drying unit; It includes a third coating unit installed between the first film supply unit and the drying unit,
Each side of the first and second film supply units is equipped with a web guiding module for stably maintaining tension during film transfer. When transferring the film in the forward direction from the first film supply unit to the second film supply unit, the web located on the first film supply unit side is provided. The guiding module is spaced apart from the film, and the web guiding module located on the second film supply side is in close contact with the film. When operating in the reverse direction, the web guiding module located on the second film supply side is spaced apart from the film and the first film The web guiding module located on the supply side operates in close contact with the film.
The drying unit is a combination of microwave drying and heat drying methods, and is formed in the form of a continuous tunnel from the first film supply unit to the second film supply unit, and microwave drying devices are installed at the front and rear ends of the drying unit, respectively. It performs a primary drying role during forward and reverse coating, and the heat drying tunnel type drying device between the front and rear ends performs a secondary drying role.
As the film is supplied from the first film supply unit to the second film supply unit, the film is first coated in the first coating unit, dried in the drying unit, and wound up in the second film supply unit, and the film from the second film supply unit is transferred to the first film supply unit. Supplying in the opposite direction, the second coating is done in the second coating section and then dried in the drying section and wound up in the first film supply section. As the film is supplied from the first film supply section again to the second film supply section, it is applied in the third coating section. Roll-to-roll multi-coating equipment, characterized in that the triple coating process can be performed in one device by drying in the drying section after the third coating and winding it in the second film supply section.
상기 제1,3 코팅부는 마이크로 그라비아 코팅이나 스프레이 코팅을 실시하고, 제2 코팅부는 슬롯 코팅을 실시하는 것을 특징으로 하는 롤투롤 멀티 코팅장비.
In claim 1.
Roll-to-roll multi-coating equipment, wherein the first and third coating parts perform micro gravure coating or spray coating, and the second coating part performs slot coating.
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| KR102509506B1 (en) * | 2021-11-26 | 2023-03-14 | 한국기술교육대학교 산학협력단 | Slot die coater that can be rolled and table coated |
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| KR102676613B1 (en) | 2023-12-12 | 2024-06-19 | 도호준 | Window film coating system and method |
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