KR20180045596A - Device for manufacturing flexible film and method therefor - Google Patents

Device for manufacturing flexible film and method therefor Download PDF

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Publication number
KR20180045596A
KR20180045596A KR1020160140133A KR20160140133A KR20180045596A KR 20180045596 A KR20180045596 A KR 20180045596A KR 1020160140133 A KR1020160140133 A KR 1020160140133A KR 20160140133 A KR20160140133 A KR 20160140133A KR 20180045596 A KR20180045596 A KR 20180045596A
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base film
conductive solution
film
engraved
flexible film
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KR1020160140133A
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Korean (ko)
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KR101892169B1 (en
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황중국
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(주)프로템
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Priority to PCT/KR2016/014460 priority patent/WO2018079927A1/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D7/00—Producing flat articles, e.g. films or sheets
    • B29D7/01—Films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D5/00—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures
    • B05D5/12—Processes for applying liquids or other fluent materials to surfaces to obtain special surface effects, finishes or structures to obtain a coating with specific electrical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D—PROCESSES FOR APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05D7/00—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials
    • B05D7/02—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber
    • B05D7/04—Processes, other than flocking, specially adapted for applying liquids or other fluent materials to particular surfaces or for applying particular liquids or other fluent materials to macromolecular substances, e.g. rubber to surfaces of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/10—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets multiaxial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • B29C59/026—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing of layered or coated substantially flat surfaces
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/10—Processes of additive manufacturing
    • B29C64/106—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material
    • B29C64/124—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified
    • B29C64/129—Processes of additive manufacturing using only liquids or viscous materials, e.g. depositing a continuous bead of viscous material using layers of liquid which are selectively solidified characterised by the energy source therefor, e.g. by global irradiation combined with a mask
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/52—Electrically conductive inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
    • C09D5/24—Electrically-conducting paints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C37/00—Component parts, details, accessories or auxiliary operations, not covered by group B29C33/00 or B29C35/00
    • B29C37/0025—Applying surface layers, e.g. coatings, decorative layers, printed layers, to articles during shaping, e.g. in-mould printing
    • B29C37/0028—In-mould coating, e.g. by introducing the coating material into the mould after forming the article
    • B29C2037/0046—In-mould printing, in-mould transfer printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0077—Yield strength; Tensile strength

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Manufacturing & Machinery (AREA)
  • Optics & Photonics (AREA)
  • Physics & Mathematics (AREA)
  • Manufacturing Of Electric Cables (AREA)
  • Non-Insulated Conductors (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)
  • Laminated Bodies (AREA)

Abstract

The present invention relates to a device for manufacturing a flexible film and to a method therefor, and specifically, to a device for manufacturing a flexible film, which forms a pattern and performs coating while stretching a film material. According to the present invention, by using a nano material and a nano process technology for overcoming the inflexibility of an ITO material and securing stability under extreme bending conditions, it is possible to manufacture the flexible film, which has excellent low resistance properties while having high flexibility.

Description

플렉시블 필름 제조장치 및 그 방법{Device for manufacturing flexible film and method therefor}Technical Field [0001] The present invention relates to a flexible film manufacturing method,

본 발명은 플렉시블 필름 제조장치 및 그 방법에 관한 것으로서, 더욱 상세하게는 필름소재를 스트레칭 상태에서 패턴 형성 및 코팅하도록 하는 플렉시블 필름 제조장치 및 그 방법에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to an apparatus and a method for manufacturing a flexible film, and more particularly to an apparatus and a method for manufacturing a flexible film in which a film material is patterned and coated in a stretched state.

종래, 플라스틱 전극필름 제조방법에 있어서, 국내등록특허 제0957487은 미세패턴이 형성된 금형을 이용한 임프린트 공정을 통해 음각의 패턴을 형성 후 음각 패턴된 홈에 전도성 물질을 충진한 후, 기계적 마모를 통해 각인부 이외의 영역 전도성 잔사를 제거하는 것을 특징으로 한다. Conventionally, in the method of manufacturing a plastic electrode film, Korean Patent Registration No. 0957487 discloses a method of forming a pattern of an engraved pattern through an imprint process using a mold having a fine pattern, filling a recessed patterned groove with a conductive material, And the conductive residue is removed.

기존에는 평면, 음각패턴의 단일 공정을 통해 제조되는데 이때, 극한의 휨조건(예를 들어, 곡률반경 1mm)에서 투명전극의 파단이 일어나는 문제점이 있다.Conventionally, it is manufactured through a single process of planar and engraved patterns. At this time, there is a problem that the transparent electrode is broken at an extreme bending condition (for example, a radius of curvature of 1 mm).

본 발명의 목적은 전술한 점들을 감안하여 안출된 것으로, 투명전극필름 제작시 기저필름에 코팅공정에 있어서 일정한 응력을 가해진 상태에서 온도, 음각의 각인 방식을 추가하여 초고유연성을 가지면서 우수한 저저항 특성을 가지는 플렉시블 필름 제조장치 및 그 방법을 제공함에 있다.It is an object of the present invention, which is devised in view of the above-mentioned points, to provide a method of forming a transparent electrode film by adding a method of inscribing a temperature and an intaglio in a state where a certain stress is applied to a base film in a coating process, And a method for manufacturing the flexible film.

본 발명에 따른 플렉시블 필름 제조장치는 기저필름을 당겨 일정한 장력을 유지하는 스트레칭부(100); 상기 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 음각의 요부를 형성시키는 패턴 형성부(200); 상기 음각의 요부에 전도성 용액을 충진하고 Cleaning을 수행하는 충진부(300); 및 상기 음각의 요부에 충진된 전도성 용액을 코팅하는 코팅헤드(400);를 포함할 수 있다.The flexible film production apparatus according to the present invention comprises: a stretching part (100) for pulling a base film to maintain a constant tension; A pattern forming unit 200 for forming recessed portions using a metal mold having a relief pattern formed on the base film; A filling part 300 filling the recessed part of the engraved part with conductive solution and performing cleaning; And a coating head 400 coating the conductive solution filled in the depressions of the engraved portion.

바람직하게 스트레칭부는 히팅된 기저필름에 작용하는 응력이 상기 기저필름의 재질에 따른 탄성한도 항복점에서 일정한 장력을 유지하도록 한다.Preferably, the stretching part maintains a constant tensile force at an elastic limit yield point according to the material of the base film, so that a stress acting on the heated base film is maintained.

또한 기저필름은 PET, PI, PDMS, PU계열 중 어느 하나인 것을 특징으로 한다.The base film is characterized by being one of PET, PI, PDMS, and PU series.

또한 패턴 형성부(200)는 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 핫 엠보싱 또는 임프린팅을 통해 음각의 요부를 형성시킬 수 있다.In addition, the pattern forming unit 200 may be formed by hot embossing or imprinting using a metal mold having a relief pattern formed on the base film.

한편, 플렉시블 필름 제조장치를 이용한 제조방법은 (a) 플렉시블 필름 제조장치의 제어부가 기저필름을 당겨 일정한 장력을 유지하도록 하는 단계; (b) 상기 제어부가 상기 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 음각의 요부를 형성시키도록 하는 단계; (c) 상기 제어부가 상기 음각의 요부에 전도성 용액을 충진하도록 하는 단계; (d) 상기 제어부가 상기 당겨진 기저필름에서 음각의 요부 외의 부위를 Cleaning을 하도록 하는 단계; 및 (e) 상기 제어부가 상기 당겨진 기저필름에 전도성 용액이 충진된 필름 위에 전도성 용액을 코팅하도록 하는 단계;를 포함할 수 있다.On the other hand, a manufacturing method using a flexible film production apparatus includes: (a) a control unit of a flexible film production apparatus pulling a base film to maintain a constant tension; (b) forming a concave portion of the engraved body by using a mold having a relief pattern formed on the base film pulled by the controller; (c) causing the control unit to fill the concave portion of the engraved body with a conductive solution; (d) causing the control unit to perform cleaning of a portion other than a concave portion of the engraved portion in the drawn base film; And (e) allowing the controller to coat the drawn base film with a conductive solution on a film filled with a conductive solution.

상술한 바에 의하면, 기존의 투명전극 소재인 ITO 소재의 비유연성을 극복하고 극한의 휨조건에서 안정성 확보를 위한 나노소재와 나노공정 기술을 이용하여 초 고유연성을 가지면서 우수한 저저항 특성을 가지는 효과가 있다.According to the above description, it is possible to overcome the non-flexibility of the ITO material, which is a conventional transparent electrode material, and to have an excellent low resistance property with ultra-high flexibility by using the nano material and nano process technology for securing stability under extreme bending conditions .

또한 기존의 ITO의 최대 약점인 굴곡, Strechable의 제한성으로 인해 non-folderable, non-strechable, non-flexible한 문제점을 해결이 가능하여 터치패널, 평판디스플레이, 태양전지, 차량용 투명발열체, 투명 전자파차폐 등 산업 전반에 적용될 수 있는 확장성이 큰 기술로 우수한 효과가 있다.In addition, it is possible to solve problems of non-folderable, non-strechable and non-flexible due to the bending of the conventional ITO, which is the weakest point of the ITO, and the limitation of the stretchable. Thus, touch panel, flat panel display, solar battery, transparent heating element for vehicle, It is a highly scalable technology that can be applied to the entire industry and has excellent effects.

도 1은 본 발명의 일실시예에 따른 플렉시블 필름 제조장치에 대한 구성도이다.
도 2는 본 발명의 일실시예에 따른 플렉시블 필름 제조장치의 스트레칭부 개념을 설명하기 위한 예시도이다.
도 3은 본 발명의 일실시예에 따른 플렉시블 필름 제조장치의 스트레칭부를 나타낸 예시도이다.
도 4는 본 발명의 일실시예에 따른 플렉시블 필름 제조장치의 제어부 순차적 제어 동작을 설명하기 위한 예시도이다.
도 5는 본 발명의 일실시예에 따른 플렉시블 필름 제조장치에서 제어부의 다른 제어동작을 설명하기 위한 예시도이다.
도 6은 본 발명의 일실시예에 따른 플렉시블 필름 제조장치를 이용한 제조방법의 전체 흐름도이다.1 is a configuration diagram of a flexible film production apparatus according to an embodiment of the present invention.
2 is an exemplary view for explaining the concept of a stretching part of a flexible film production apparatus according to an embodiment of the present invention.
3 is an exemplary view showing a stretching part of the flexible film production apparatus according to an embodiment of the present invention.
4 is an exemplary view for explaining a sequential control operation of a controller of the flexible film production apparatus according to an embodiment of the present invention.
5 is an exemplary view for explaining another control operation of the control unit in the flexible film production apparatus according to an embodiment of the present invention.
6 is an overall flowchart of a manufacturing method using a flexible film production apparatus according to an embodiment of the present invention.

본 발명의 구체적 특징 및 이점들은 첨부도면에 의거한 다음의 상세한 설명으로 더욱 명백해질 것이다. 이에 앞서 본 발명에 관련된 공지 기능 및 그 구성에 대한 구체적인 설명이 본 발명의 요지를 불필요하게 흐릴 수 있다고 판단되는 경우에는, 그 구체적인 설명을 생략하였음에 유의해야 할 것이다.Specific features and advantages of the present invention will become more apparent from the following detailed description based on the accompanying drawings. It is to be noted that the detailed description of known functions and constructions related to the present invention is omitted when it is determined that the gist of the present invention may be unnecessarily blurred.

우선, 본 발명의 일실시예에 따른 플레시블 필름 제조장치 및 그 방법은 투명전극필름 제작시 기저필름의 코팅공정에 있어서 일정한 응력이 가해진 상태에서 온도, 음각의 각인 방식을 추가하여 극한의 휨조건(1mm)에서도 파단을 방지할 수 있는데 특징이 있다.First, in an apparatus for manufacturing a flexible film according to an embodiment of the present invention and a method of manufacturing the same, a method of inserting a temperature and an embossing in a state where a certain stress is applied in a base film coating process, (1 mm) can be prevented.

그리고 각 공정이 필름의 탄성한도 항복점에서 이뤄지기 때문에 극한의 휨조건에서 안정성을 확보할 수 있는데 특징이 있다.Since each process is performed at the elastic limit of yield strength of the film, it is characterized by securing stability under extreme bending conditions.

이하, 첨부된 도면을 참조하여 본 발명을 상세하게 설명한다. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will now be described in detail with reference to the accompanying drawings.

도 1은 본 발명의 일실시예에 따른 플렉시블 필름 제조장치를 나타낸 구성도이다. 도 1에 도시된 바와 같이, 스트레칭부(100), 패턴 형성부(200), 충진부(300), 코팅헤드(400),제어부(500)를 포함할 수 있다.1 is a block diagram showing an apparatus for manufacturing a flexible film according to an embodiment of the present invention. A pattern forming unit 200, a filling unit 300, a coating head 400, and a control unit 500, as shown in FIG.

도 2는 본 발명의 일실시예에 따른 플렉시블 필름 제조장치의 스트레칭부 개념을 설명하기 위한 예시도이다.2 is an exemplary view for explaining the concept of a stretching part of a flexible film production apparatus according to an embodiment of the present invention.

스트레칭부(100)는 도 2에 도시된 바와 같이, 히팅된 기저필름을 당겨 일정한 장력을 유지하는 구성이다. 이러한 스트레칭부(100)는 기저필름에 작용하는 응력이 기저필름의 재질에 따른 탄성한도 항복점에서 일정한 장력을 유지하도록 하는데 특징이 있다.As shown in Fig. 2, the stretching part 100 pulls the heated base film to maintain a constant tension. The stretching part 100 is characterized in that the stress acting on the base film maintains a constant tension at an elastic limit yield point according to the material of the base film.

본 실시예에 따른 기저필름은 PET, PI, PDMS, PU계열 중 어느 하나인 것을 특징으로 한다.The base film according to the present embodiment is characterized by being one of PET, PI, PDMS, and PU series.

어떤 물체에 응력을 가하여 변형시킬 때 응력이 작을 때는 응력에 비례하여 변형(탄성변형)이 되고 응력을 제거하면 원래의 상태로 되돌아간다. 그러나 응력이 어떤 한계를 넘었을 때 변형이 급격히 증대하는 경우가 생긴다. 이 현상을 항복이라 하고 그 한계응력을 그 물질의 항복응력 또는 단지 항복값 또는 항복점이라고 한다. 항복응력 이상에서는 응력을 제거하여도 물체는 먼저의 모양으로 되돌아가지 않고 영구변형이 남는다. When an object is deformed by stress, when the stress is small, it is deformed (elastic deformation) in proportion to the stress, and when the stress is removed, it returns to the original state. However, when the stress exceeds a certain limit, deformation increases rapidly. This phenomenon is called yield and its critical stress is called the yield stress of the material or simply the yield or yield point. In the case of the yield stress abnormality, even if the stress is removed, the object does not return to its original shape, but permanent deformation remains.

본 실시예에 따른 스트레칭부(100)는 일정하게 가해지는 응력을 탄성한도 항복점에서 유지하도록 하였다. 이때 탄성한도 항복점은 영구변형이 되기전의 응력을 의미하고, 가한 응력을 제거하면 원래의 상태로 되돌아갈 수 있는 것으로서, 탄성한도 항복점이라 명명하였다. The stretching portion 100 according to the present embodiment is designed to maintain the constant applied stress at the elastic limit stress point. In this case, the elastic limit yield point refers to the stress before the permanent deformation, and when the stress is removed, the elastic limit yield point is called the elastic limit yield point.

즉, 필름의 재질마다 항복점이 다른데, 각 재질특성에 따라 영구변형되기전 항복점에 도달하기 전의 일정한 응력으로 필름을 당기도록 하는데 특징이 있다. That is, the yield point differs depending on the material of the film. According to each material characteristic, the film is pulled with a certain stress before reaching the yield point before being permanently deformed.

도 3은 본 발명의 일실시예에 따른 플렉시블 필름 제조장치의 스트레칭부를 나타낸 예시도이다.3 is an exemplary view showing a stretching part of the flexible film production apparatus according to an embodiment of the present invention.

히팅된 기저필름을 당겨 일정한 장력을 유지하는데 있어서, 도 3에 도시된 바와 같이, 스트레칭부(100)의 연결수단(2)은 기저필름(1)의 각 단부에 연결고정하여 해당 기저필름의 재질에 따라 설정되는 탄성한도 항복점에서 일정한 장력을 유지하도록 일정 응력으로 당길 수 있다. As shown in FIG. 3, the connecting means 2 of the stretching part 100 is fixedly connected to each end of the base film 1 so as to maintain a constant tension by pulling the heated base film, At a certain elastic tension limit point, which is set in accordance with the elastic modulus.

이때 기저필름을 스트레칭부와 연결고정시에도 탄성한도 항복점을 고려하여 일정한 응력을 가하여 연결고정할 수도 있다. 연결고정은 스프링과 같은 탄성부재로 당겨 응력을 가할 수도 있다. At this time, even when the base film is connected to and fixed to the stretching part, it can be connected and fixed by applying a constant stress in consideration of the elastic limit stress. The connection fixture may be pulled and stressed by an elastic member such as a spring.

그리고 스트레칭부(100)는 히팅된 기저필름 외에 히팅과 동시에 기저필름을 당겨 일정한 장력을 유지하도록 할 수도 있다.In addition to the heated base film, the stretching part 100 may pull the base film at the same time as heating to maintain a constant tension.

패턴 형성부(200)는 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 음각의 요부를 형성시키는 구성이다.The pattern forming unit 200 has a structure in which recesses of an engraved portion are formed by using a metal mold having a relief pattern formed on the base film.

이러한 패턴 형성부(200)는 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 핫 엠보싱 또는 임프린팅을 통해 음각의 요부를 형성할 수 있다.The pattern forming unit 200 may be formed by hot embossing or imprinting using a mold having a relief pattern formed on the base film.

충진부(300)는 음각의 요부에 전도성 용액을 충진하고 Cleaning을 수행하는 구성이다. 이때, 음각의 요부에 전도성 용액을 충진하는 방법은 doctor blade coater로 충진하고, 전도성 용액은 Ag paste, AgNW, Copper, Ni, CNT, Graphene, PEDOT 등 이다. The filling part 300 is a constitution in which the recessed part of the engraved part is filled with the conductive solution and cleaning is performed. Ag paste, AgNW, Copper, Ni, CNT, Graphene, and PEDOT were used as the conductive solution.

코팅헤드(400)는 음각의 요부에 충진된 전도성 용액을 코팅하는 구성이다.The coating head 400 is configured to coat a conductive solution filled in recesses of a negative angle.

이러한 코팅헤드(400)는 당겨진 기저필름에 슬롯다이(Slot die) 또는 그라비아(Micro-gravure) 또는 콤마(Comma) 방식으로 전도성 용액을 코팅하는 구성이다.The coating head 400 is configured to coat the drawn base film with a conductive solution by a slot die, a micro-gravure, or a comma method.

제어부(500)는 스트레칭부(100), 패턴 형성부(200), 충진부(300), 코팅헤드(400)를 제어하는 구성으로 코팅헤드(400)로 코팅된 기저필름을 건조하여 스트레칭부(100)로 가해지는 응력을 풀어주어 당겨진 필름이 원상태로 되돌아가도록 할 수 있다. The control unit 500 controls the stretching unit 100, the pattern forming unit 200, the filling unit 300 and the coating head 400 to dry the base film coated with the coating head 400, 100 to release the stretched film back to its original state.

도 4는 본 발명의 일실시예에 따른 플렉시블 필름 제조장치의 제어부 순차적 제어 동작을 설명하기 위한 예시도이다.4 is an exemplary view for explaining a sequential control operation of a controller of the flexible film production apparatus according to an embodiment of the present invention.

도 5는 본 발명의 일실시예에 따른 플렉시블 필름 제조장치에서 제어부의 다른 제어동작을 설명하기 위한 예시도이다.5 is an exemplary view for explaining another control operation of the control unit in the flexible film production apparatus according to an embodiment of the present invention.

이러한 제어부는 도 4에 도시된 바와 같이, 레일상에 이동하는 스트레칭부(100)의 상부에서 패턴 형성부(200)의 동작을 수행하고, 충진부(300)와 코팅헤드(400)의 동작을 순차적으로 수행할 수 있고, 도 5에 도시된 바와 같이, 고정된 스트레칭부(100)에 패턴 형성부(200)의 동작을 먼저 수행한 다음 옮겨지고 충진부(300)와 코팅헤드(400)가 이동해서 동작을 수행할 수도 있다. 4, the control unit performs the operation of the pattern forming unit 200 at an upper portion of the stretching unit 100 moving on the rail and controls the operations of the filling unit 300 and the coating head 400 5, the operation of the pattern forming unit 200 is carried out first in the fixed stretching unit 100, and then the filling unit 300 and the coating head 400 are moved You can also move and perform actions.

이러한 제어부의 동작에 따른 플렉시블 필름 제조장치를 이용한 제조방법을 아래에서 설명하기로 한다.A manufacturing method using the flexible film production apparatus according to the operation of the control unit will be described below.

도 6은 본 발명의 일실시예에 따른 플렉시블 필름 제조장치를 이용한 제조방법의 전체 흐름도이다.6 is an overall flowchart of a manufacturing method using a flexible film production apparatus according to an embodiment of the present invention.

플렉시블 필름 제조장치를 이용한 제조방법을 도 6을 참조하여 살펴보면 다음과 같다.A manufacturing method using the flexible film production apparatus will be described with reference to FIG.

도 6에 도시된 바와 같이, 제어부는 기저필름을 당겨 일정한 장력을 유지하도록 한다(a). 여기서, (a)단계는 히팅된 기저필름에 작용하는 응력이 기저필름의 재질에 따른 탄성한도 항복점에서 일정한 장력을 유지하도록 한다.As shown in FIG. 6, the control unit pulls the base film to maintain a constant tension (a). Here, in the step (a), the stress acting on the heated base film maintains a constant tension at an elastic limit yield point according to the material of the base film.

다음으로 제어부는 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 음각의 요부를 형성시키도록 한다(b). 이때, 제어부는 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 핫 엠보싱 또는 임프린팅을 통해 음각의 요부를 형성시킬 수 있다.Next, the control unit forms a concave portion of the engraved pattern using a mold having a relief pattern formed on the base film (b). At this time, the controller can form recesses of the engraved body through hot embossing or imprinting using a metal mold having a relief pattern formed on the base film.

다음으로 제어부는 음각의 요부에 전도성 용액을 충진하도록 한다(c). 이때, 음각의 요부에 전도성 용액을 충진하는 방법은 doctor blade coater로 충진하고, 전도성 용액은 Ag paste, AgNW, Copper, Ni, CNT, Graphene, PEDOT 등이다. Next, the control unit causes the recessed portion of the engraved body to be filled with the conductive solution (c). Ag paste, AgNW, Copper, Ni, CNT, Graphene, and PEDOT were used as the conductive solution.

다음으로 제어부는 스트레칭부의 당겨진 필름에서 음각의 요부 외의 부위를 Cleaning하도록 한다(d).Next, the control unit allows the stretched portion of the stretched film to be cleaned (d).

다음으로 제어부는 당겨진 기저필름에 슬롯다이 또는 그라비아 또는 콤마(Comma) 방식으로 전도성 용액이 충진된 필름위에 전도성 용액을 코팅하도록 할 수 있다(e).Next, the control unit may coat the drawn base film with a conductive solution on a film filled with a conductive solution in a slot die, a gravure or a comma method (e).

그리고 제어부는 건조되기까지 당겨진 상태에서 건조완료되면 스트레칭부의 장력을 원상태로 풀어주도록 스트레칭부를 제어할 수 있다.The control unit can control the stretching unit to release the tension of the stretching unit in its original state when the drying unit is completely dried in a pulled state until it is dried.

위에서 언급한 바와 같이, 본 실시예에 따른 제어부는 도 4에 도시된 바와 같이, 레일상에 당겨진 기저필름의 상부에서 패턴 형성부(200)의 양각 패턴금형으로 음각의 요부 패턴을 형성하도록 한다. As described above, the control unit according to the present embodiment forms a recessed concave pattern with the relief pattern mold of the pattern forming unit 200 on the base film drawn on the rail, as shown in FIG.

다음으로 음각의 요부에 전도성 용액을 충진한다. 이때, 음각의 요부에 전도성 용액을 충진하는 방법은 doctor blade coater로 충진하고, 전도성 용액은 Ag paste, AgNW, Copper, Ni, CNT, Graphene, PEDOT 등이다. Next, the recessed portion of the engraving is filled with a conductive solution. Ag paste, AgNW, Copper, Ni, CNT, Graphene, and PEDOT were used as the conductive solution.

다음으로 레일상에서 당겨진 필름의 스트레칭부를 이동하여 음각의 요부 외의 부위를 Cleaning한다.Next, the stretching part of the film drawn on the rail is moved to clean the area other than the concave part of the engraved area.

다음으로 doctor blade coater로 당기진 필름의 전도성 용액이 충진된 필름위에 전도성 용액을 Slot die 또는 Microgravure 또는 콤마 방식으로 코팅하는 코팅헤드(400)의 동작을 순차적으로 수행할 수 있다. 즉, 도 4에 의한 방식은 레일상에서 당겨진 필름을 순차적으로 이동하여 각 과정들을 수행할 수 있도록 한다.Next, the operation of the coating head 400, in which the conductive solution is coated on the film filled with the conductive solution of the pulled film by a doctor blade coater, is coated by Slot die, Microgravure or Comma method can be sequentially performed. That is, the system shown in FIG. 4 sequentially moves the films pulled on the rails so that each process can be performed.

또한 도 5에 도시된 바와 같이, 레일상에서 이동이 정지된 스트레칭부(100)에 패턴 형성부(200)의 동작을 먼저 수행한 다음 패턴 형성부에 해당하는 양각 패턴 금형이 다른 곳으로 옮겨지도록 한다. 5, the operation of the pattern forming unit 200 is first performed on the stretching unit 100 in which the movement is stopped on the rail, and then the embossed pattern mold corresponding to the pattern forming unit is moved to another place .

다음으로 전도성 용액을 음각의 요부에 충진한 다음 Cleaning을 수행한다.Next, the conductive solution is filled in the depressions of the engraved surface and then cleaning is performed.

다음으로, 필름위에 전도성 용액을 코팅하는 코팅헤드(400)가 당겨진 필름 위로 이동해서 Slot die 또는 Microgravure 또는 콤마 방식으로 코팅헤드의 동작을 수행할 수도 있다. Next, the coating head 400 coating the conductive solution on the film may be moved over the pulled film to perform the operation of the coating head in a slot die or microgravure or a comma method.

즉, 도 5에 도시된 방식은 이동하는 레일상에서 당겨진 필름의 이동을 정지 후, 패턴형성하여 전도성 용액 충진 및 Cleaning을 수행한 후, 코팅헤드가 당겨진 필름 위로 이동하여 순차적으로 와서 작업을 수행한 후, 레일상에서 정지된 필름을 이동하도록 할 수 있다. That is, in the method shown in FIG. 5, after the movement of the film pulled on the moving rail is stopped, pattern formation is performed to perform conductive solution filling and cleaning, and then the coating head moves over the pulled film, , Allowing the stationary film to move on the rails.

본 발명에 따른 플렉시블 필름 제조장치 및 그 방법에 의하면, 기존의 투명전극 소재인 ITO 소재의 비유연성을 극복하고 극한의 휨조건에서 안정성 확보를 위한 나노소재와 나노공정 기술을 이용하여 초 고유연성을 가지면서 우수한 저저항 특성을 가지는 효과가 있다.According to the apparatus and method for manufacturing a flexible film according to the present invention, it is possible to overcome the non-flexibility of the ITO material, which is a conventional transparent electrode material, and to use the nano material and nano process technology for securing stability under extreme bending conditions, And has an excellent low resistance characteristic.

또한 기존의 ITO의 최대 약점인 굴곡, Strechable의 제한성으로 인해 non-folderable, non-strechable, non-flexible한 문제점을 해결이 가능하여 터치패널, 평판디스플레이, 태양전지, 차량용 투명발열체, 투명 전자파차폐 등 산업 전반에 적용될 수 있는 확장성이 큰 기술로 우수한 효과가 있다.In addition, it is possible to solve problems of non-folderable, non-strechable and non-flexible due to the bending of the conventional ITO, which is the weakest point of the ITO, and the limitation of the stretchable. Thus, touch panel, flat panel display, solar battery, transparent heating element for vehicle, It is a highly scalable technology that can be applied to the entire industry and has excellent effects.

100 : 스트레칭부 200 : 패턴 형성부
300 : 충진부 400 : 코팅헤드
500 : 제어부100: stretching unit 200: pattern forming unit
300: filling part 400: coating head
500:

Claims (9)

기저필름을 당겨 일정한 장력을 유지하는 스트레칭부(100);
상기 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 음각의 요부를 형성시키는 패턴 형성부(200);
상기 음각의 요부에 전도성 용액을 충진하고 Cleaning을 수행하는 충진부(300); 및
상기 음각의 요부에 충진된 전도성 용액을 코팅하는 코팅헤드(400);를 포함하는 것을 특징으로 하는 플렉시블 필름 제조장치.A stretching part (100) for pulling a base film to maintain a constant tension;
A pattern forming unit 200 for forming recessed portions using a metal mold having a relief pattern formed on the base film;
A filling part 300 filling the recessed part of the engraved part with conductive solution and performing cleaning; And
And a coating head (400) for coating a conductive solution filled in recesses of the engraved portion. 제 1 항에 있어서,
상기 스트레칭부(100)는 히팅된 기저필름에 작용하는 응력이 상기 기저필름의 재질에 따른 탄성한도 항복점에서 일정한 장력을 유지하도록 하는 것을 특징으로 하는 플렉시블 필름 제조장치.The method according to claim 1,
Wherein the stretching part (100) maintains a tension acting on the heated base film at a constant tension at an elastic limit yield point according to the material of the base film. 제 1 항에 있어서,
상기 기저필름은 PET, PI, PDMS, PU계열 중 어느 하나인 것을 특징으로 하는 플렉시블 필름 제조장치.The method according to claim 1,
Wherein the base film is one of PET, PI, PDMS, and PU series. 제 1 항에 있어서,
상기 패턴 형성부(200)는 상기 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 핫 엠보싱 또는 임프린팅을 통해 음각의 요부를 형성시키는 것을 특징으로 하는 플렉시블 필름 제조장치.The method according to claim 1,
Wherein the pattern forming unit (200) forms a concave portion of the engraved body by hot embossing or imprinting using a mold having a relief pattern formed on the base film. 제 1 항에 있어서,
상기 전도성 용액은 Ag paste, AgNW, Copper, Ni, CNT, Graphene, PEDOT 중 어느 하나 인 것을 특징으로 하는 플렉시블 필름 제조장치.The method according to claim 1,
Wherein the conductive solution is one of Ag paste, AgNW, Copper, Ni, CNT, Graphene, and PEDOT. 플렉시블 필름 제조장치를 이용한 제조방법에 있어서,
(a) 상기 플렉시블 필름 제조장치의 제어부가 기저필름을 당겨 일정한 장력을 유지하도록 하는 단계;
(b) 상기 제어부가 상기 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 음각의 요부를 형성시키도록 하는 단계;
(c) 상기 제어부가 상기 음각의 요부에 전도성 용액을 충진하도록 하는 단계;
(d) 상기 제어부가 상기 당겨진 기저필름에서 음각의 요부 외의 부위를 Cleaning을 하도록 하는 단계; 및
(e) 상기 제어부가 상기 당겨진 기저필름에 전도성 용액이 충진된 필름 위에 전도성 용액을 코팅하도록 하는 단계;를 포함하는 것을 특징으로 하는 제조방법.In a manufacturing method using a flexible film production apparatus,
(a) causing the control unit of the flexible film production apparatus to pull the base film to maintain a constant tension;
(b) forming a concave portion of the engraved body by using a mold having a relief pattern formed on the base film pulled by the controller;
(c) causing the control unit to fill the concave portion of the engraved body with a conductive solution;
(d) causing the control unit to perform cleaning of a portion other than a concave portion of the engraved portion in the drawn base film; And
(e) coating the conductive solution on a film filled with a conductive solution in the drawn base film. 제 6 항에 있어서,
상기 제 (a) 단계는,
상기 제어부가 히팅된 기저필름에 작용하는 응력이 상기 기저필름의 재질에 따른 탄성한도 항복점에서 일정한 장력을 유지하도록 하는 단계인 것을 특징으로 하는 제조방법.The method according to claim 6,
In the step (a)
Wherein the controller controls the tension applied to the heated base film to maintain a constant tension at an elastic limit of yield strength according to the material of the base film. 제 6 항에 있어서,
상기 제 (b) 단계는,
상기 제어부가 당겨진 기저필름의 상부에 양각의 패턴이 형성된 금형을 이용하여 핫 엠보싱 또는 임프린팅을 통해 음각의 요부를 형성시키는 단계인 것을 특징으로 하는 제조방법.The method according to claim 6,
The step (b)
Wherein the recess is formed by hot embossing or imprinting using a mold having an embossed pattern formed on a base film on which the controller is pulled. 제 6 항에 있어서,
상기 전도성 용액은 Ag paste, AgNW, Copper, Ni, CNT, Graphene, PEDOT 중 어느 하나 인 것을 특징으로 하는 플렉시블 필름 제조장치.

The method according to claim 6,
Wherein the conductive solution is one of Ag paste, AgNW, Copper, Ni, CNT, Graphene, and PEDOT.

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