WO2012128570A2 - 금속 박막 필름 제조방법 - Google Patents

금속 박막 필름 제조방법 Download PDF

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Publication number
WO2012128570A2
WO2012128570A2 PCT/KR2012/002074 KR2012002074W WO2012128570A2 WO 2012128570 A2 WO2012128570 A2 WO 2012128570A2 KR 2012002074 W KR2012002074 W KR 2012002074W WO 2012128570 A2 WO2012128570 A2 WO 2012128570A2
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WO
WIPO (PCT)
Prior art keywords
thin film
metal thin
layer
weight
adhesive
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PCT/KR2012/002074
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English (en)
French (fr)
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WO2012128570A3 (ko
Inventor
정광춘
조현남
조남부
진석필
박광진
권혁환
임태호
진선미
이돈신
Original Assignee
주식회사 잉크테크
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Publication of WO2012128570A2 publication Critical patent/WO2012128570A2/ko
Publication of WO2012128570A3 publication Critical patent/WO2012128570A3/ko

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B15/00—Layered products comprising a layer of metal
    • B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • B32B15/082—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising vinyl resins; comprising acrylic resins
    • 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
    • B32B7/14—Interconnection of layers using interposed adhesives or interposed materials with bonding properties applied in spaced arrangements, e.g. in stripes
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07F—ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAINING ELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN, SULFUR, SELENIUM OR TELLURIUM
    • C07F1/00—Compounds containing elements of Groups 1 or 11 of the Periodic Table
    • C07F1/10—Silver compounds
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/28—Metal sheet
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
    • C09J7/00—Adhesives in the form of films or foils
    • C09J7/20—Adhesives in the form of films or foils characterised by their carriers
    • C09J7/29—Laminated material
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B5/00—Non-insulated conductors or conductive bodies characterised by their form
    • H01B5/14—Non-insulated conductors or conductive bodies characterised by their form comprising conductive layers or films on insulating-supports

Definitions

  • the present invention provides a method for forming an adhesive pattern layer by a pattern printing method after forming a metal layer.
  • [3] films with high reflective performance are used to improve the performance of the backlight unit.
  • the present invention has formed a metal thin film manufactured by a coating method and secured weather resistance through surface treatment.
  • the adhesive printing resulted in a laminating process that developed a weather-resistant reflective film that can maintain high reflectivity and brightness.
  • Japanese Patent Publication No. 2005-280131 manufactures a weather-resistant reflective film with a weatherproof resin layer.However, improving weather resistance with a resin layer can reduce the reflection rate and the occurrence of yellowing, but when evaluating weather resistance for a long time, There is a lack in Detailed description of the invention Technical task
  • the purpose of the present invention is to print an air gap by printing the adhesive by pattern printing.
  • the present invention provides a method for manufacturing a metal thin film which can maintain high reflectance and brightness, and a metal thin film manufactured thereby.
  • the present invention provides a metal thin film comprising the steps of: a) preparing a metal layer on a base layer; and b) forming an adhesive pattern layer on the metal layer, the adhesive pattern being patterned in a predetermined pattern.
  • a method for manufacturing a metal thin film comprising the steps of: a) preparing a metal layer on a base layer; and b) forming an adhesive pattern layer on the metal layer, the adhesive pattern being patterned in a predetermined pattern.
  • the present invention provides a metal thin film manufactured by the above manufacturing method.
  • the present invention provides a backlight unit including a metal thin film for reflective film. Effects of the Invention
  • metal thin film properties in particular, optical properties
  • metal thin films specifically 250 hours in high temperature, high temperature and high humidity environments, and thermal lamination environments of metal thin films. Changes in reflectance and color coordinates at 500 and 1000 hours are improved, resulting in higher brightness metal films with higher reflectivity and lower yellow index values.
  • FIG. 1 is a cross-sectional view of a metal thin film according to the present invention.
  • Primer layer, 30 Ag layer, 40: surface treatment layer, 50: adhesive layer (pattern), 60: protective film (PET))
  • FIG. 2 is a photograph of a metal thin film according to the present invention. (Display the line width and the space between open areas)
  • FIG. 3 is a view showing a modified mesh pattern of the adhesive pattern layer according to the present invention.
  • the method for producing a metal thin film according to the present invention includes a) forming a metal layer on a base layer.
  • the metal layer is formed of silver (Ag) ink coating liquid
  • the silver (Ag) ink coating liquid contains a silver complex compound obtained by reacting at least one silver compound of Formula 1 with at least one ammonium carbamate or ammonium carbonate compound selected from Formulas 2 to 4. It will come with features.
  • X is oxygen, sulfur, halogen, cyano, cyanate, carbonate, nitrate,
  • ⁇ is an integer of 1 to 4, or is independently of each other hydrogen, aliphatic or alicyclic alkyl group of C1-C30, aryl group Or an aralkyl group, a substituted alkyl and aryl group, a substituent selected from a heterocyclic compound, a high molecular compound and a derivative thereof, except that R and R 6 are all hydrogen.
  • the method for coating (Ag) ink is gravure coating, flexo coating,
  • the coating is fired.
  • the coated silver coating liquid is fired.
  • the microgravure coating method is applied, and the coated silver (Ag) ink is baked at 150 ° C for 5 minutes to give silver (Ag Metal layer can be manufactured.
  • Patent Document No. 10-0727483 describes a manufacturing method thereof, and thus the specific content thereof will be omitted.
  • the method may further include preparing a primer layer between the substrate layer and the metal layer, wherein the primer layer may be formed by applying various materials as long as the primer layer is a material capable of improving adhesion between the substrate layer and the metal layer. have.
  • the metal layer may have a thickness of 0.05 / m to 4jUiii.
  • the thickness ranges from 0.15 to 0.3.
  • excellent optical characteristics may be provided, and optical characteristics may be degraded when the thickness is too small or too large.
  • the adhesive includes acrylic, polysiloxane, and
  • polyester adhesives One or more selected from polyester adhesives can be used.
  • the adhesive based on 100 parts by weight of the total, adhesive solids
  • the adhesive solids include acrylic resins, polysiloxane resins and polyesters.
  • Resin can be used.
  • the solvent in step b) is not limited, but one or more mixed solvents selected from xylene, luene, MEK, butyl acetate and butyl glycol acetate can be used.
  • the inorganic filler may include one or more selected from A1 2 0 3 , Si0 2 , and Ti0 2 .
  • the adhesive pattern layer may have a linear shape or a polygonal shape.
  • a single linear pattern may be sporadic or regularly arranged, or a discontinuous shape in which the linear patterns are connected or unconnected.
  • it may be in the form of a mesh, and may specifically be a hexagon mesh, a square mesh, a dot, a triangle mesh, or a mesh pattern of a combination thereof. Each corner region of a triangle mesh or square mesh may be partially cut.
  • the shape of the adhesive pattern layer can be formed continuously or discontinuously. The shape of the adhesive pattern layer can be changed in various ways, without being limited thereto. can do.
  • the pattern may have a line width of 0.1 to 5000. When provided in the range of the line width, the pattern may provide excellent optical characteristics. In the case where the line width is too thin, adhesion may be reduced.
  • the air gap of the pattern may be between 100 ⁇ m and 10000.
  • the air layer is a space formed by the height of the actual pattern on the basis of the cross section, and is formed between the surface treatment layer and the protective film, and the luminance by the air layer can be improved.
  • the adhesive pattern layer may include direct gravure printing, flexography printing, gravure offset, imprint, lithography printing, and the like.
  • the adhesive may be formed by printing the adhesive by a method selected from screen printing and rotary screen printing.
  • a method of manufacturing a metal thin film according to the present invention includes a surface treatment agent comprising at least one selected from a silane coupling agent and an acid between the metal layer and the adhesive pattern layer.
  • the method may further include forming a treatment layer.
  • This surface treatment is carried out to remove traces of organic matter from the metal layer and to prevent oxidation of metals such as oxidation of (Ag).
  • the surface treating agent may be prepared by adding a solvent to at least one selected from the silane coupling agent and the acid.
  • the surface treating agent For example, based on 100 parts by weight of the surface treating agent, at least one selected from a silane compound and an acid compound as the silane coupling agent is added at 0.005 to 50 parts by weight,
  • the solvent may be prepared by adding 50 to 99.995 parts by weight. When added in the above range it can provide an excellent antioxidant effect, if too less than the addition amount may be reduced the antioxidant effect in too many cases.
  • the silane compound and the acid compound may be used or mixed, respectively, where the silane compound alone may be added in an amount of 0.005 to 50 parts by weight, and when the acid compound is added alone, 0.01 to 50 parts by weight may be added.
  • the silane compound and / or the acid compound are added in the above range, excellent optical properties may be provided, and when the amount of the silane compound and / or the acid compound is added too small or too much, the optical properties may be reduced.
  • Methyltrimethoxysilane TetraEthoxysilane, Trimethylorthosilicate,
  • Methyltriethoxysilane Dimethyldimethoxysilane, Propyltrimethoxysilane,
  • One or more silane compounds selected from propyltriethoxysilane, trimethoxy (octadecyl) silane, Isobutyltrimethoxysilane, Isobutyltriethoxysilane, Phenyltrimethoxysilane, and n-Octyltriethoxysilane can be used.
  • an acid compound one or more acid compounds selected from Oleic acid, Neodecanoic acid, Valeric acid, Why acid, Malvalic acid, Decanoic acid, Butyric acid, and Heptanoic acid may be used. .
  • the solvent may be one or more selected from acetone, MEK, MIBK, MAK, toluene, xylene, methanol, ethanol, isopropanol, and n butanol.
  • the surface treating agent may further include an inorganic filler to improve optical properties.
  • the inorganic filler may use at least one selected from MgO, ZnO, Si0 2 , and Ti0 2 .
  • the surface treating agent may include a silane coupling agent and
  • At least one selected from the acid and the inorganic filler may be prepared by adding a solvent.
  • one or more selected from the silane coupling agent and the acid is added in an amount of 0.005 to 50 parts by weight, and the inorganic filler is added in an amount of 0.01 to 0.1 parts by weight. It can be prepared by adding 49.9 ⁇ 99.998 parts by weight of the solvent.
  • the surface treatment layer may include a microgravure coating, a gravure coating, a flexo coating, a spin coating, a slot die coating, a lip coating. (lip coating), and spray coating It can be formed into the surface treatment agent using a method selected from among.
  • the method for manufacturing a metal thin film according to the present invention is carried out on the adhesive pattern layer.
  • the adhesive pattern layer and the protective film may be laminated using a laminator.
  • the protective film polyethylene terephthalate (PET),
  • PEN Polyethylene naphthalate
  • PES polyethersulfone
  • nylon nylon
  • PTFE polytetrafluoroethylene
  • PC polycarbonate
  • cellophane Cellophane
  • PAR polyarylate
  • polyimide It may be a film selected from PI.
  • the thickness of the protective film may be 10 to 200 10.
  • the thickness of the protective film may be 1 ⁇ , 19 ⁇ , 25iM, 38 / m, 5Q, 75 // m, 100j n, 125jtzm, 188 / im. can do.
  • the metal thin film according to the present invention may be manufactured by the above-described manufacturing method, and the metal thin film thus produced may be composed of, for example, a base layer, a primer layer, a metal layer, an adhesive pattern layer, and a protective film. As shown in Figure 1, it may be composed of a base layer, a primer layer, a metal layer, a surface treatment layer, an adhesive pattern layer, a protective film.
  • the reflective film may be applied to various display devices, for example
  • It can be used as the reflective film of the backlight unit of the display device.
  • the adhesive was prepared by mixing 15 parts by weight of polysiloxane type adhesive, 50 parts by weight of xylene, and 35 parts by weight of toluene.
  • the adhesive was formed of a metal layer (Ag) layer (Toray Advanced Materials, XG532). Using direct gravure printing, nine types were printed according to line width, open area and pattern shape.
  • the protective film was then laminated with polyethylene terephthalate (PET) 12 / mm 3 in a continuous process.
  • PET polyethylene terephthalate
  • the adhesive was prepared by mixing 25 parts by weight of a polyester type adhesive, 20 parts by weight of MEK, 20 parts by weight of butyl acetate, and 35 parts by weight of butyl glycol acetate.
  • Toray Advanced Materials, XG532) using direct gravure method according to line width, open area and pattern shape
  • the protective film was then laminated to polyethylene terephthalate (PET) 12 // m in a continuous process.
  • PET polyethylene terephthalate
  • the adhesive includes 17.5 parts by weight of acrylic copolymer type adhesive,
  • the protective film was then laminated to polyethylene terephthalate (PET) 12 / m in a continuous process.
  • PET polyethylene terephthalate
  • the adhesive includes 11 parts by weight of polysiloxane type adhesive, 50 parts by weight of xylene, and toluene
  • the adhesive is a metal layer formed of a silver (Ag) layer film (Toray Advanced Materials,
  • XG532 was coated using the microgravure method.
  • the protective film was then laminated to polyethylene terephthalate (PET) 12 / m in a continuous process.
  • PET polyethylene terephthalate
  • the adhesive was prepared by mixing 20 parts by weight of a polyester type adhesive, 20 parts by weight of MEK, 20 parts by weight of butyl acetate, and 40 parts by weight of butyl glycol acetate.
  • the adhesive was coated on the film (Ag) layer (Toray Advanced Materials, XG532) on which the metal layer was formed by using the microgravure method.
  • the protective film was then laminated with polyethylene terephthalate (PET) 12 in a continuous process.
  • PET polyethylene terephthalate
  • an adhesive 11 parts by weight of an acrylic copolymer type adhesive, 50 parts by weight of butyl glycol acetate, and 39 parts by weight of butyl acetate were mixed.
  • the adhesive was coated on the film (Ag) layer (Toray Advanced Materials, XG532) on which a metal layer was formed using a microgravure method.
  • the protective film was then laminated to polyethylenetetraphthalate (PET) l3 ⁇ 4 «m in a continuous process.
  • PET polyethylenetetraphthalate
  • a surface treatment solution was prepared by mixing and dissolving 1.0 parts by weight of neodecanoic acid and 99 parts by weight of ethanol.
  • the prepared surface treatment solution was prepared by a microgravure coater.
  • the metal layer which was used, was applied onto a film (Ag) layer (X-ray Toray Advanced Materials, XG532) on which it was formed, and dried at a temperature of 180 degrees for 5 minutes to form a surface treatment layer.
  • the adhesive includes 17.5 parts by weight of acrylic copolymer type adhesive,
  • the protective film was then laminated with polyethylene terephthalate (PET) l m in a continuous process.
  • PET polyethylene terephthalate
  • a metal layer of silver (Ag) layer is formed, on the film (Toray advanced materials, XG532), it was applied to form a surface treatment layer for 5 minutes dried at a temperature of 150 dossie.
  • the adhesive was printed on the surface treatment layer by direct gravure printing in nine types according to line width, open area and pattern shape.
  • the protective film was then laminated with polyethylene terephthalate (PET) l3 ⁇ 4um in a continuous process.
  • PET polyethylene terephthalate
  • the prepared surface treatment solution was prepared by using a microgravure coater on a film (Ag) layer (Toray Advanced Materials, XG532) on which a metal layer was formed, and dried at 180 ° C for 5 minutes. A surface treatment layer was formed.
  • the adhesive was prepared by mixing 25 parts by weight of polyester type adhesive, 20 parts by weight of MEK, 20 parts by weight of butyl acetate, and 35 parts by weight of butyl glycol acetate by using a direct gravure method on the surface treatment layer. And 9 types according to the open area and pattern.
  • the protective film was then laminated with polyethylene terephthalate (PET) 12 in a continuous process.
  • PET polyethylene terephthalate
  • the metal layer silver (Ag) layer was formed.
  • the adhesive includes 25 parts by weight of polyester type adhesive, 20 parts by weight of MEK, and butyl acetate. 20 parts by weight and 35 parts by weight of butyl glycol acetate were mixed and prepared.
  • Adhesives were printed on the surface treatment layer by direct gravure printing in nine types according to line width, open area and pattern shape.
  • the protective film was laminated at 1 t / m polyethylene terephthalate (PET) in a continuous process.
  • PET polyethylene terephthalate
  • the prepared surface treatment solution was prepared by using a microgravure coater on a film (Ag) layer (Toray Advanced Materials, XG532) on which a metal layer was formed, and dried at 180 ° C. for 5 minutes. A surface treatment layer was formed.
  • the adhesive was prepared by mixing 15 parts by weight of polysiloxane type adhesive, 50 parts by weight of xylene, and 35 parts by weight of luene. The adhesive was placed on the surface treatment layer.
  • Direct gravure printing was used to print 9 types according to line width, open area and pattern shape.
  • the protective film was then laminated with polyethylene terephthalate (PET) 12 in a continuous process.
  • PET polyethylene terephthalate
  • the surface treatment liquid was applied onto a film (Ag) layer (Toray Advanced Materials, XG532) on which a metal layer was formed, and dried at a temperature of 150 ° C. for 5 minutes to form a surface treatment layer.
  • a film (Ag) layer Toray Advanced Materials, XG532
  • the adhesive includes a polysiloxane type adhesive, 15 parts by weight, Si020.5 parts by weight xylene
  • the protective film was then laminated with polyethylene terephthalate (PET) l3 ⁇ 4ffli in a continuous process.
  • PET polyethylene terephthalate
  • Table 4 shows the results of the optical characteristics in each of the Examples and Comparative Examples.
  • Table 5 shows the results of some selected examples, which were left at 250 hr at 85 0 C, 85% high temperature and high humidity conditions.
  • Table 6 shows the results of the examples selected as part of the 250hr left at 100 ° C. high temperature conditions.
  • the adhesive layer is pattern-printed to form the adhesive pattern layer, it is possible to provide excellent optical properties such as maintaining high air reflectance and brightness by maintaining an air gap.
  • surface treatment can provide excellent weather resistance to the metal layer, thereby simultaneously securing physical and chemical weather resistance.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Laminated Bodies (AREA)
  • Manufacturing Of Printed Wiring (AREA)
  • Chemically Coating (AREA)

Abstract

본 발명은 a) 기재층 상에 금속층을 구비하는 단계; 및 b) 상기 금속층 상에, 접착제를 일정 패턴으로 패터닝한 접착제패턴층을 형성하는 단계를 포함하는 것을 특징으로 하는 금속 박막 필름의 제조방법을 제공한다.

Description

명세서
발명의명칭:금속박막필름제조방법 기술분야
[1] 본발명은,금속층형성후패턴인쇄방법으로접착제패턴층을형성하는
금속박막필름의제조방법및이에의해제조된금속박막필름에관한것이다. 배경기술
[2] 일상생활에서많이사용되는전자기기인휴대폰， LCD TV, LED TV,
네비게이션등에적용되는 TFTLCD용백라이트유닛 (Back Light Unit)은 점차적으로그사용량이증가하고발전하면서저가화，고휘도화되고있다.
[3] 백라이트유니트의성능을향상시키기위해반사성능이높은필름이
요구되고있다.또한노트북，핸드폰， LED TV, LCD TV용으로박막화가 가능하며우수한광특성을갖는금속박막필름이필요로하고있다.
[4] 이에일반적인종래의반사필름제조는은증착이나스퍼터링방식으로
제조되고있다.일본특허공개번호제 2008-009006호에서는증착방법을 사용하여금속박막을형성하였다.
[5] 일본특허공개공보특개평제 2002-129259호등에서는은을주성분으로
진공증착을하여반사율이높은반사막을형성하는것이공지되어 있다.
페트 (PET)와같은플렉시블기재표면에반사율이높은은 (Ag),알루미늄 (A1), 니켈 (Ni),로듬 (Rh)둥의금속을이용한진공증착을한후지지체에라미네이팅을 통한반사막의제조를할수있으나진공증착의경우고진공의챔버 (chamber)가 요구되며기재의형태및크기에제약을주고코팅두께가불균일하며많은 설비비로인한문제점이있다.
[6] 더불어,증착공정에서오는낮은수율과느린속도높은설비비용으로판단할 때높은가격으로산정되는한계를갖고있다.
[7] 따라서본발명자들은이러한문제점을해결하기위하여부단히노력한결과 성공적으로본발명에도달하게되었다.즉，본발명은코팅방법으로제조된 금속박막을형성하고표면처리를통하여내후성을확보하였으며，패턴형식의 점착제프린팅으로라미네이팅공정을가져가높은반사율과휘도를유지할수 있는내후성강한반사필름을개발하게되었다.
[8] 또,기존의캐스팅공법으로반사필름을제조시에은반사면위에올라오는 유기물에의해휘도및반사율저하, Yellow index의상승을유발하는문제점이 있어，보호 layer없이는 silver의산화를방지할수없었다.일본특허공개번호제 2005-280131호에서는내후성수지층을가지고내후성개선된반사필름을 제조하였다.그러나수지층으로내후성을개선하는것은반사율저하와황변의 발생을줄일수는있지만장시간내후성을평가할경우에부족함이있다. 발명의상세한설명 기술적과제
[9] 본발명의목적은，접착제를패턴인쇄방식으로인쇄함으로써 Air gap을
유지하여높은반사율과휘도를유지할수있는금속박막필름의제조방법및 이에의해제조된금속박막필름을제공하는것이다.
과제해결수단
[10] 본발명은， a)기재층상에금속층을구비하는단계 ;및 b)상기금속층상에 , 접착제를일정패턴으로패터닝한접착제패턴층을형성하는단계를포함하는 것을특징으로하는금속박막필름의제조방법을제공한다.
[11] 본발명은，상기제조방법에의해제조된금속박막필름을제공한다
[12] 본발명은，반사필름용금속박막필름을포함하는백라이트유닛을제공한다. 발명의효과
[13] 본발명에따르면금속박막특성，특히광특성을증진시켜，보다우수한품질의 금속박막필름을제공할수있고，구체적으로는금속박막의고온환경，고온고습 환경，열층격환경에서의 250시간, 500시간， 1000시간에서의반사율변화및 색좌표변화가개선되며，반사율은보다높고， Yellow index값이보다낮은 고휘도의금속박막을제공할수있다.
도면의간단한설명
[14] 도 1은본발명에따른금속박막필름의단면도이다 .(10: Base기재 (PET), 20:
Primer층, 30: Ag층, 40:표면처리층, 50:접착층 (pattern), 60:보호필름 (PET))
[15] 도 2는본발명에따른금속박막필름의사진이다. (선폭과 Open area의간격을 표시)
[16] 도 3은본발명에따른접착제패턴층의변형메쉬패턴올도시한도면이다. 발명의실시를위한형태
[17] 본발명에따른금속박막필름의제조방법은， a)기재층상에금속층을
구비하는단계；및 b)상기금속층상에 ,접착제를일정패턴으로패터닝한 접착제패턴층을형성하는단계를포함한다.
[18] 상기 a)단계에서상기금속층은,은 (Ag)잉크코팅액으로형성되며,상기
은 (Ag)잉크코팅액은,하기화학식 1의하나이상의은화합물과하기화학식 2 내지화학식 4로부터선택되는 1종또는 2종이상의암모늄카바메이트계또는 암모늄카보네이트계화합물을반응시켜얻어지는은착체화합물을함유하는 것올특징으로한다.
[19] [화학식 1]
[20] AgnX
[21] [화학식 2]
Figure imgf000004_0001
Figure imgf000005_0001
[27] 상기화학식에서，
[28] X는산소，황，할로겐，시아노，시아네이트，카보네이트，니트레이트，
나이트라이트，설페이트，포스페이트，티오시아네이트，클로레이트，
퍼클로레이트，테트라플로로보레이트，아세틸아세토네이트，카복실레이트및 그들의유도체로부터선택되는치환기이며 ,η은 1~4의정수이고, 내지 는 서로독립적으로수소， C1-C30의지방족이나지환족알킬기,아릴기또는 아랄킬 (aralkyl)기，관능기가치환된알킬및아릴기그리고헤테로고리화합물과 고분자화합물및그유도체로부터선택되는치환기이며,단， R,내지 R6가모두 수소인경우는제외한다.
[29] 상기은 (Ag)잉크를도포하는방법으로는그라비아코팅，플렉소코팅，
술롯다이코팅，및마이크로그라비아코팅방법을사용할수있다.
[30] 상기와같이도포후소성하게되는데，소성시，도포된은코팅액이은
금속으로변환하는조건이라면크게제한받지않지만，통상적으로
60~200°C에서 10초 ~20분정도방치하여소성할수있다.본발명에서는한예로, 마이크로그라비아코팅법으로도포하고，도포된은 (Ag)잉크를 150°C에서 5분 동안소성하여은 (Ag)금속층을제조할수있다.
[31] 여기서，사용되는은잉크코팅액의경우，본원발명자들에의해출원된
특허둥록 10-0727483호에그제조방법이기재되어 있음에따라구체적인내용을 생략하기로한다.
[32] 상기본발명에따른금속박막필름의제조방법은,상기 a)단계에서상기
기재층과상기금속층사이에프라이머 (primer)층을구비하는단계를더포함할 수있다.여기서프라이머층은기재층과금속층의부착력을향상시킬수있는 물질이면당업계에알려진다양한물질을적용하여형성할수있다.
[33] 상기 a)단계에서상기금속층은 0.05/m~ 4jUiii의두께를가질수있으며 ,
바람직하게는 0.15 ~0.3 일수있다.상기두께범위로구비되면，우수한 광특성을제공할수있으며，상기두께보다너무작거나너무큰경우광특성이 저하될수도있다.
[34] 상기 b)단계에서접착제로는,아크릴계，폴리실록산계，및
폴리에스테르 (Polyester)계접착제증에서선택된 1종이상을사용할수있다. [35] 상기 b)단계에서상기접착제는,전체 100중량부를기준으로,접착제고형분
5-50중량부，무기필러 0.01~1중량부，및용매 49~96중량부를포함할수있다. 상기범위로첨가되면우수한광특성및접착력을제공할수있으며，상기 첨가량보다너무작거나너무큰경우광특성및접착력이저하될수도있다.
[36] 상기접착제고형분으로는，아크릴수지 ,폴리실록산수지,폴리에스테르
수지를사용할수있다.
[37] b)단계의용매로는한정이있는것은아니나일례로，자일렌，를루엔， MEK, 부틸아세테이트및부틸글리콜아세테이트에서선택되는하나또는둘이상의 흔합용매를사용할수있다.
[38] 상기무기필러는， A1203, Si02,및 Ti02중에서선택된 1종이상을포함할수 있다.
[39] 상기 b)단계에서상기접착제패턴층은직선형태또는다각형형상을가질수 있다.하나의직선형태의패턴이산발적또는규칙적으로배열되거나이직선형 패턴들이연결되거나연결되지않는불연속형태일수있으며，다각형형상의 예로서메쉬형태일수있으며구체적으로육각메쉬 (Honeycomb),사각메쉬 , 원형 (Dot),삼각메쉬，또는이들이흔합된형태의메쉬패턴일수있다.삼각형 메쉬，사각형메쉬의각꼭지점영역은일부절단된형태로구비되어변형 메쉬패턴형태를가질수있다 (도 3참조).이와같이접착제패턴층의패턴은 연속적또는불연속적으로형성될수있다.여기서,접착제패턴층의형상은이로 한정되는것은아니며다양하게변경할수있다.
[40] 상기 b)단계에서상기패턴은선폭이 0.1 ~ 5000 일수있다.상기선폭 범위로구비되면우수한광특성을제공할수있으며,선폭이너무얇은경우 부착성이저하될수도있다.
[41] 상기 b)단계에서상기패턴의공기층 (Air gap)은 100卿~10000 일수있다. 여기서공기층이란단면을기준으로실질적인패턴의높이에의해형성되는 공간으로표면처리층과보호필름사이에형성되며，상기공기층에의해휘도를 개선할수있게된다.
[42] 상기 b)단계에서상기접착제패턴층은，다이렉트그라비아프린팅 (Direct gravure printing),플렉소프린팅 (Flexography Printing),그라비아옵셋 (Gravure offset)，임프린트 (Imprint),리소그라피프린팅 (Lithography printing),스크린 인쇄 (Screen Printing),및로타리스크린인쇄 (Rotary screen printing)중에서 선택된방법으로상기접착제를인쇄하여형성될수있다.
[43] 본발명에따른금속박막필름의제조방법은,상기금속층과상기접착제패턴층 사이에，실란커플링제 (silane coupling agent)및에시드 (acid)중선택된 1종 이상을포함하는표면처리제로표면처리층을형성하는단계를더포함할수 있다.
[44] 이와같은표면처리는，금속층에서미량존재하는유기물을제거하고금속의 산화예컨대은 (Ag)의산화를방지하기위해수행하게된다. [45] 상기 표면처 리제는, 상기 실란커플링 제 (silane coupling agent) 및 에시드 (acid) 중 선택된 1종 이상에 용매를 첨가하여 제조될 수 있다.
[46] 예컨대, 상기 표면처 리제 100증량부를 기준으로，상기 실란커플링 제 (silane coupling agent)로서 실란화합물 및 에 시드 (acid) 화합물 중 선택된 1종 이상을 0.005~50중량부로 첨가하고，상기 용매를 50~99.995중량부로 첨가하여 제조될 수 있다. 상기 범위로 첨가하게 되면 우수한 산화방지효과를 제공할 수 있으며， 상기 첨가량 보다 너무 적은 경우 너무 많은 경우 산화방지효과가 저하될 수 도 있다.
[47] 여 기서，실란화합물 및 에시드 화합물을 각각 사용하거나 흔합하여 사용할 수 있는데，실란화합물을 단독으로 첨가하는 경우 0.005~50중량부를 첨가할 수 있으며，상기 에시드 화합물을 단독으로 첨가하는 경우 0.01~50중량부를 첨가할 수 있다. 상기 실란화합물 및 /또는 에시드 화합물을 상기 범위로 첨가하는 경우 우수한 광특성을 제공할 수 있고，상기 첨가량 보다 너무 작게 첨가하거나 녀무 많이 첨가하는 경우 광특성 이 저 하될 수도 있다.
[48] 상기 실란커플링제로서 3-Mercaptopropyltrimethoxysilane,
Methyltrimethoxysilane, TetraEthoxysilane, Trimethylorthosilicate,
Methyltriethoxysilane, Dimethyldimethoxysilane, Propyltrimethoxysilane,
Propyltriethoxysilane, Trimethoxy(octadecyl)silane, Isobutyltrimethoxysilane, Isobutyltriethoxysilane, Phenyltrimethoxysilane, 및 n-Octyltriethoxysilane 중에서 선택된 1종 이상의 실란화합물을 사용할 수 있다.
[49] 상기 에시드 (acid) 화합물로서 , Oleic acid, Neodecanoic acid, Valeric acid, Laurie acid, Malvalic acid, Decanoic acid, Butyric acid, 및 Heptanoic acid 증에서 선택된 1종 이상의 에시드 (acid )화합물을 사용할 수 있다.
[50] 상기 용매는 아세톤， MEK, MIBK, MAK, 틀루엔，크실렌, 메탄올，에 탄올， 이소프로판올, 및 n부탄올 중에서 선택된 1종 이상을 사용할 수 있다.
[51] 상기 표면처 리제는，광특성 향상을 위해 무기필러를 더 포함할 수 있다.
[52] 상기 무기필러는 MgO, ZnO, Si02, 및 Ti02 중에서 선택된 1종 이상을 사용할 수 있다.
[53] 예컨대，상기 표면처 리제는, 상기 실란커플링제 (silane coupling agent) 및
에시드 (acid) 중 선택된 1종 이상과 상기 무기필러에，용매를 첨가하여 제조될 수 있다.
[54] 상기 표면처 리제 100중량부를 기준으로，상기 실란커플링제 (silane coupling agent) 및 에시드 (acid) 중 선택된 1종 이상을 0.005~50중량부로 첨가하고, 상기 무기 필러를 0.01~0.1중량부로 첨가하고, 상기 용매를 49.9~99.985중량부로 첨가하여 제조될 수 있다.
[55] 상기 표면처 리층은, 마이크로 그라비아 코팅 (Microgravure coating), 그라비아 코팅 (gravure coating), 플렉소 코팅 (Flexo coating), 스핀코팅 (spin coating), 슬롯 다이 코팅 (slot die coating), 립 코팅 (lip coating), 및 스프레이 코팅 (spray coating) 중에서선택된방법을이용하여상기표면처리제로형성될수있다.
[56] 본발명에따른금속박막필름의제조방법은，상기접착제패턴층상에
보호필름을구비하는단계를더포함할수있다.
[57] 상기보호필름을구비하는단계에서는라미네이터 (Laminator)기를이용하여 상기접착제패턴층과상기보호필름을합지시킬수있다.
[58] 상기보호필름은,폴리에틸렌텔레프탈레이트 (PET),
폴리에틸렌나프탈레이트 (PEN),폴리에테르술폰 (PES),나이론 (Nylon), 폴리테트라플로우로에틸렌 (PTFE),폴리카보네이트 (PC),셀로판 (Cellophane), 폴리아릴레이트 (PAR),및폴리이미드 (PI)중에서선택된필름일수있다.
[59] 상기보호필름의두께는 10~200卿일수있다.예컨대보호필름의두께는 1 ΐ, 19ΛΠ, 25iM, 38/m, 5Q , 75//m, lOOj n, 125jtzm, 188/im로다양할수있다.
[60] 본발명에따른금속박막필름은，전술한제조방법에의해제조될수있으며, 이와같이제조된금속박막필름은，예컨대기재층,프라이머층,금속층， 접착제패턴층，보호필름으로구성될수도있고，도 1에도시된바와같이, 기재층，프라이머층,금속층,표면처리층，접착제패턴층,보호필름으로구성될 수있다.
[61] 상기반사필름은，다양한디스플레이장치에적용될수있으며，예컨대
디스플레이장치의백라이트유닛의반사필름으로사용될수있다.
[62] 이하에서는본발명을실시예를통해더욱상세히설명하기로하나,이로본 발명이한정되는것은아니다.
[63] 심시^ U
[64] 접착제로는 Polysiloxane type접착제를 15중량부，자일렌 50중량부,를루엔 35증량부로혼합하여제조하였다.이접착제를금속층인은 (Ag)층이형성된 필름 (도레이첨단소재, XG532)상에，다이렉트그라비아방식을사용하여선폭및 Open area,패턴모양에따른 9종류로인쇄하였다.
[65] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) 12/迎로 라미네이팅하였다.
[66] 심시^ 12
[67] 접착제로는 Polyester type접착제를 25증량부, MEK 20중량부,부틸아세테이트 20중량부，부틸글리콜아세테이트 35중량부로흔합하여제조하였다.이 접착제를금속층인은 (Ag)층이형성된필름 (도레이첨단소재， XG532)상에， 다이렉트그라비아방식을사용하여선폭및 Open area,패턴모양에따른
9종류로인쇄하였다.
[68] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) 12//m로 라미네이팅하였다.
[69] ^시여 13
[70] 접착제로는 Acrylic copolymer type접착제를 17.5중량부，
부틸글리콜아세테이트 40중량부,부틸아세테이트 42.5중량부로흔합하여 제조하였다.이접착제를금속층인은 (Ag)층이형성된필름 (도레이첨단소재，
XG532)상에 ,다이렉트그라비아방식을사용하여선폭및 Open area,패턴 모양에따른 9종류로인쇄하였다.
[71] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) 12/m로 라미네이팅하였다.
[72] 비교예 K표며처리 찬체패터?ᅵ쇠】하지않음)
[73] 접착제로는 Polysiloxane type접착제를 11중량부，자일렌 50증량부，를루엔
39중량부로흔합하여제조하였다.
[74] 그리고이접착제를금속층인은 (Ag)층이형성된필름 (도레이첨단소재,
XG532)상에，마이크로그라비아방식을사용하여코팅하였다.
[75] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) 12/m로 라미네이팅하였다.
[76] 비교예 2(표며처리 은/접착체패터?ᅵ쇄하지않음)
[77] 접착제로는 Polyester type접착제를 20증량부, MEK 20중량부，부틸아세테이트 20중량부，부틸글리콜아세테이트 40중량부로흔합하여제조하였다.
[78] 그리고이접착제를금속층인은 (Ag)층이형성된필름 (도레이첨단소재, XG532)상에,마이크로그라비아방식을사용하여코팅하였다.
[79] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) 12 로 라미네이팅하였다.
[80] 비교예 표며처리 은/접착체피 1터 <?1쇠 1하지않음)
[81] 접착제로는 Acrylic copolymer type접착제를 11중량부，부틸글리콜아세테이트 50중량부，부틸아세테이트 39중량부로혼합하여제조하였다.
[82] 그리고이접착제를금속층인은 (Ag)층이형성된필름 (도레이첨단소재， XG532)상에，마이크로그라비아방식을사용하여코팅하였다.
[83] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) l¾«m로 라미네이팅하였다.
[84] 이하에서는각실시예，비교예에서의접착제조성으로정리하여 [표 1]로
나타내었으며，[표 2]는각실시여 1,비교예에서의패턴종류별광특성결과 data를 정리하여나타내었다.
[85] 표 1 [Table 1]
Figure imgf000010_0001
표 2
[Table 2]
Figure imgf000010_0002
심시예 4
네오데카노익에시드 1.0중량부,에탄올 99중량부를혼합용해하여 표면처리액제를제조하였다.제조한표면처리액제를마이크로그라비아코터 사용하여금속층인은 (Ag)층이형성된필름 (도레이첨단소재， XG532)상에， 도포하고,온도 180도씨에서 5분간건조하여표면처리층을형성하였다.
[90] 접착제로는 Acrylic copolymer type접착제를 17.5중량부，
부틸글리콜아세테이트 40중량부,부틸아세테이트 42.5증량부로흔합하여 제조하였다.이접착제를표면처리층위에다이렉트그라비아방식을사용하여 선폭및 Open area,패턴모양에따른 9종류로인쇄하였다.
[91] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) l m로 라미네이팅하였다.
[92] 실시예 5
[93] 3-Mercaptopropyltrimethoxysilane 0.1중량부，에탄올 99.9중량부를혼합
용해하여표면처리액제를제조하였다.제조한표면처리액제를
마이크로그라비아코터를사용하여금속층인은 (Ag)층이형성된 , 필름 (도레이첨단소재， XG532)상에，도포하고，온도 150도씨에서 5분간 건조하여표면처리층을형성하였다.
[94] 접착제로는 Acrylic copolymer type접착제를 17.5증량부，
부틸글리콜아세테이트 40중량부，부틸아세테이트 42.5중량부로흔합하여 제조하였다.이접착제를표면처리층위에다이렉트그라비아방식을사용하여 선폭및 Open area,패턴모양에따른 9종류로인쇄하였다.
[95] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) l¾um로 라미네이팅하였다.
[96] 심시^ 16
[97] 네오데카노익에시드 1.0중량부,에탄을 99중량부를흔합용해하여
표면처리액제를제조하였다.제조한표면처리액제를마이크로그라비아코터를 사용하여금속층인은 (Ag)층이형성된필름 (도레이첨단소재， XG532)상에， 도포하고，온도 180도씨에서 5분간건조하여표면처리층을형성하였다.
[98] 접착제로는 Polyester type접착제를 25중량부， MEK 20중량부，부틸아세테이트 20중량부，부틸글리콜아세테이트 35중량부로흔합하여제조하였다.이 접착제를표면처리층위에다이렉트그라비아방식을사용하여선폭및 Open area,패턴모양에따른 9종류로인쇄하였다.
[99] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) 12 로 라미네이팅하였다.
[100] 심시예 7
[101] 3-Mercaptopropyltrimethoxysilane 0.1중량부，에탄을 99.9증량부를흔합
용해하여표면처리액제를제조하였다.제조한표면처리액제를
마이크로그라비아코터를사용하여금속층인은 (Ag)층이형성된
필름 (도레이첨단소재, XG532)상에，도포하고,온도 150도씨에서 5분간 건조하여표면처리층을형성하였다.
[102] 접착제로는 Polyester type접착제를 25중량부, MEK 20증량부，부틸아세테이트 20증량부，부틸글리콜아세테이트 35중량부로흔합하여제조하였다.
[103] 접착제를표면처리층위에다이렉트그라비아방식을사용하여선폭및 Open area,패턴모양에따른 9종류로인쇄하였다.
[104] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) l t/m로 라미네이팅하였다.
[105] 심시예 8
[106] 네오데카노익에시드 1.0중량부，에탄올 99중량부를혼합용해하여
표면처리액제를제조하였다.제조한표면처리액제를마이크로그라비아코터를 사용하여금속층인은 (Ag)층이형성된필름 (도레이첨단소재， XG532)상에, 도포하고,온도 180도씨에서 5분간건조하여표면처리층을형성하였다.
[107] 접착제로는 Polysiloxane type접착제를 15중량부，자일렌 50중량부，를루엔 35중량부로흔합하여제조하였다.이접착제를표면처리층위에
다이렉트그라비아방식을사용하여선폭및 Open area,패턴모양에따른 9종류로인쇄하였다.
[108] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) 12 로 라미네이팅하였다.
[109] 심시예 9
[110] 3-Mercaptopropyltrimethoxysilane 0.1중량부， ZnO 0.1증량부에탄을
99.8중량부를흔합용해하여표면처리액제를제조하였다.제조한
표면처리액제를마이크로그라비아코터를사용하여금속층인은 (Ag)층이 형성된필름 (도레이첨단소재， XG532)상에，도포하고，온도 150도씨에서 5분간 건조하여표면처리층을형성하였다.
[111] 접착제로는 Polysiloxane type접착제를 15중량부, Si020.5중량부자일렌
50중량부,를루엔 34.5중량부로혼합하여제조하였다.이접착제를표면처리층 위에다이렉트그라비아방식을사용하여선폭및 Open area,패턴모양에따른 9종류로인쇄하였다.
[112] 이어서연속공정으로보호필름을폴리에틸렌텔레프탈레이트 (PET) l¾ffli로 라미네이팅하였다.
[113] 이하에서는각실시예，비교예에서의층별조성으로정리하여 [표 3]로
나타내었으며， [표 4]는각실시예，비교예에서의광특성결과 data를정리하여 나타내었으며， [표 5]에서는 850C, 85%의고온다습조건에서 250hr방치한것으로 일부선별된실시예의결과를나타내었으며， [표 6]에서는 100oC고온조건에서의 일부 250hr방치한것으로선별된실시예의결과를나타내었다.
[114] 표 3 [Table 3]
Figure imgf000013_0001
[115]
[116] 표 4
[Table 4]
Figure imgf000014_0001
표 5
[Table 5]
Figure imgf000015_0001
표 6
[Table 6]
Figure imgf000016_0001
이와 같이, 접착제층을 패턴인쇄하여 접착제패턴층으로 형성하는 경우 air gap을 유지하여 높은 반사율과 휘도를 유지하는 등의 우수한 광특성을 제공할 수 있다. 여기 에 표면처 리를 하는 경우 금속층에 대한 우수한 내후성을 제공할 수 있게 되어 물리 적 화학적 내후성을 동시 에 확보할 수 있게 된다.

Claims

청구범위
[청구항 1] a)기재층상에금속층을구비하는단계;및
b)상기금속층상에，접착제를일정패턴으로패터닝한 접착제패턴층을형성하는단계를포함하는것을특징으로하는
금속박막필름의제조방법.
[청구항 2] 청구항 1에있어서，
상기 a)단계에서상기금속층은，은 (Ag)잉크코팅액으로 형성되며,
상기은 (Ag)잉크코팅액은,하기화학식 1의하나이상의은
화합물과하기화학식 2내지화학식 4로부터선택되는 1종또는
2종이상의암모늄카바메이트계또는암모늄카보네이트계
화합물을반웅시켜얻어지는은착체화합물을함유하는것을
특징으로하는금속박막필름의제조방법.
[화학식 1]
Agnx¬화학식 2]
Figure imgf000017_0001
[화학식 4]
Figure imgf000017_0002
상기화학식에서,
X는산소，황，할로겐,시아노，시아네이트，카보네이트, 니트레이트，나이트라이트,설페이트,포스페이트,
티오시아네이트,클로레이트,퍼클로레이트，테트라플로로
보레이트,아세틸아세토네이트,카복실레이트및그들의 유도체로부터선택되는치환기이며 ,η은 1~4의정수이고， 내지 ¬는사로독립적으로수소, C1-C30의지방족이나지환족알킬기， 아릴기또는아랄킬 (aralkyl)기，관능기가치환된알킬및아릴기
그리고헤테로고리화합물과고분자화합물및그유도체로부터 선택되는치환기이며,단， Rl내지 R6가모두수소인경우는
제외한다.
[청구항 3] 청구항 1에있어서,
상기 a)단계에서상기기재층과상기금속층사이에
프라이머 (primer)층을구비하는단계를더포함하는것을
특징으로하는금속박막필름의제조방법.
[청구항 4] 청구항 1에있어서，
상기 a)단계에서상기금속층은 0.05 ~0.4 의두께를갖는것을 특징으로하는금속박막필름의제조방법.
[청구항 5] 청구항 1에있어서，
상기 b)단계에서접착제는,아크릴계，폴리실록산계，및
폴리에스테르 (Polyester)계접착제증에서선택된 1종이상의 접착제를사용하는것을특징으로하는금속박막필름의제조방법.
[청구항 6] 청구항 1에있어서，
상기 b)단계에서상기접착제는，전체 100중량부를기준으로， 접착제고형분 5~50중량부，무기필러 0.01~1중량부,및용매 49-96중량부를포함하는것을특징으로하는금속박막필름의 제조방법.
[청구항 7] 청구항 6에있어서,
상기접착제고형분으로는,아크릴수지,폴리실록산수지,및 폴리에스테르수지증에서선택된 1종이상을사용하는것을 특징으로하는금속박막필름의제조방법 .
[청구항 8] 청구항 6에 있어서,
상기무기필러는 , Al203,Si02,및 Ti02중에서선택된 1종이상을 포함하는것을특징으로하는금속박막필름의제조방법 .
[청구항 9] 청구항 1에있어서，
상기 b)단계에서상기접착제패턴층은직선형태의패턴또는 다각형형태의패턴또는이들의흔합된형태의패턴으로형성된 것을특징으로하는금속박막필름의제조방법.
[청구항 10] 청구항 9에있어서,
상기다각형형태의패턴은，육각메쉬 (Honeycomb)，사각메쉬， 원형 (Dot)，삼각메쉬,또는이들이혼합된형태의메쉬패턴인것을 특징으로하는금속박막필름의제조방법.
[청구항 11] 청구항 1에있어서，
상기 b)단계에서상기패턴은선폭이 0.1 jum ~ 5000 인것을 특징으로하는금속박막필름의제조방법.
[청구항 12] 청구항 1에있어서，
상기 b)단계에서상기패턴의공기층 (Air gap)은 100 ~ 10000卿인 것을 특징으로 하는 금속박막필름의 제조방법 .
청구항 1에 있어서 ,
상기 b) 단계에서 상기 접착제패턴층은, 다이 렉트 그라비아 프린팅 (Direct gravure printing), 플렉소 프린팅 (Flexography
Printing), 그라비아 옵셋 (Gravure offset), 임프린트 (Imprint), 리소그라피 프린팅 (Lithography printing), 스크린 인쇄 (Screen Printing), 및 로타리 스크린 인쇄 (Rotary screen printing) 증에서 선택된 방법으로 상기 접착제를 인쇄하여 형성 된 것을 특징으로 하는 금속박막필름의 제조방법 .
청구항 1에 있어서 ,
상기 금속층과 상기 접착제패턴층 사이 에 , 실란커플링제 (silane coupling agent) 및 에시드 (acid) 화합물 중 선택된 1종 이상을 포함하는 표면처 리제로 표면처 리층을 형성하는 단계를 더 포함하는 것을 특징으로 하는 금속박막필름의 제조방법 .
청구항 14에 있어서 ,
상기 표면처 리제는，상기 실란커플링제 (silane coupling agent) 및 에시드 (acid) 화합물 중 선택된 1종 이상에 용매를 첨가하여 제조되며，
상기 표면처 리제 100중량부를 기준으로，상기 실란커플링제 (silane coupling agent) 및 에시드 (acid) 화합물 중 선택된 1종 이상을 0.005~50중량부로 첨가하고, 상기 용매를 50-99.995중량부로 첨가하여 제조된 것을 특징으로 하는 금속박막필름의 제조방법 . 청구항 14에 있어서 ,
상기 실란커플링 제 (silane coupling agent)는，
3Mercaptopropyltrimethoxysilane, Methyltrimethoxysilane,
TetraEthoxysilane, Trimethylorthosilicate, Methyltriethoxysilane, Dimethyldimethoxysilane, Propyltrimethoxysilane,
Propyltriethoxysilane, Trimethoxy(octadecyl)silane,
Isobutyltrimethoxysilane, Isobutyltriethoxysilane,
Phenyltrimethoxysilane, 및 n-Octyltriethoxysilane 증에서 선택된 1종 이상의 실란 화합물을 포함하는 것을 특징으로 하는
금속박막필름의 제조방법 .
청구항 14에 있어서 ,
상기 에시드 (acid) 화합물은， Oleic acid, Neodecanoic acid, Valeric acid, Laurie acid, Malvalic acid, Decanoic acid, Butyric acid, 및 Heptanoic acid 중에서 선택된 1종 아상을 포함하는 것을 특징으로 하는 금속박막필름의 제조방법 .
청구항 14에 있어서 , 상기 표면처 리제는，무기 필러를 더 포함하는 것을 특징으로 하는 금속박막필름의 제조방법 .
[청구항 19] 청구항 18에 있어서，
상기 표면처 리제는，상기 실란커플링제 (silane coupling agent) 및 에 시드 (acid) 화합물 증 선택된 1종 이상과 상기 무기필러에， 용매를 첨가하여 제조되며 ,
상기 표면처 리제 100중량부를 기준으로，상기 실란커플링제 (silane coupling agent) 및 에시드 (acid) 화합물 증 선택된 1종 이상을 0.005-50중량부로 첨가하고，상기 무기 필러를 0.01-0.1중량부로 첨가하고，상기 용매를 49.9~99.985중량부로 첨가하여 제조된 것을 특징으로 하는 금속박막필름의 제조방법 .
[청구항 20] 청구항 18에 있어서 ,
상기 무기 필러는 MgO, ZnO, Si02, 및 Ti02 중에서 선택된 1종 이상을 포함하는 것을 특징으로 하는 금속박막필름의 제조방법 .
[청구항 21] 청구항 14에 있어서，
상기 표면처 리층은，마이크로 그라비 아 코팅 (Microgravure coating), 그라비아 코팅 (gravure coating), 플렉소 코팅 (Flexo coating), 스핀코팅 (spin coating), 슬롯 다이 코팅 (slot die coating), 립 코팅 (lip coating), 및 스프레이 코팅 (spray coating) 증에서 선택된 방법을 이용하여 상기 표면처 리 제로 형성되는 것을 특징으로 하는 금속박막필름의 제조방법 .
[청구항 22] 청 구항 1에 있어서，
상기 접착제패턴층 상에 보호필름을 구비하는 단계를 더 포함하는 것을 특징으로 하는 금속박막필름의 제조방법 .
[청구항 23] 청구항 22에 있어서，
상기 보호필름을 구비하는 단계에서는
라미 네 이터 (Laminator)기를 이용하여 상기 접착제패턴층과 상기 보호필름을 합지시 키는 것을 특징으로 하는 금속박막필름의 제조방법 .
[청구항 24] 창구항 22에 있어서，
상기 보호필름은，폴리에 틸렌텔레프탈레이트 (PET),
폴리 에 틸렌나프탈레이트 (PEN), 폴리 에 테르술폰 (PES), 나이론 (Nylon), 폴리 테트라플로우로에 틸렌 (PTFE),
폴리카보네 이트 (PC), 셀로판 (Cellophane), 폴리아릴레 이트 (PAR), 및 폴리 이 미드 (PI) 중에서 선택된 필름인 것을 특징으로 하는 금속박막필름의 제조방법ᅳ
[청구항 25] 청구항 22에 있어서，
상기 보호필름의 두께는 10-200 인 것을 특징으로 하는 금속박막필름의 제조방법 .
[청구항 26] 청구항 1 내지 청구항 25 중 어느 한 항에 따른 제조방법에 의해 제조된 금속박막필름.
[청구항 27] 청구항 26에 있어서，
상기 금속박막필름은，반사필름용인 것을 특징으로 하는 금속박막필름
[청구항 28] 청구항 27에 따른 금속박막필름을 포함하는 것을 특징으로 하는 백라이트 유닛.
PCT/KR2012/002074 2011-03-22 2012-03-22 금속 박막 필름 제조방법 WO2012128570A2 (ko)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11277699A (ja) * 1998-03-31 1999-10-12 Ube Ind Ltd 金属層積層フィルム
JP2003071983A (ja) * 2001-06-04 2003-03-12 Ube Ind Ltd 放電処理ポリイミドフィルム、放電処理方法、金属薄膜付きポリイミドフィルムおよびその製造方法
KR20060078530A (ko) * 2004-12-31 2006-07-05 주식회사 케이씨씨 부착력이 향상된 금속효과를 내는 고광택시트 제조방법
KR100727483B1 (ko) * 2006-04-29 2007-06-13 주식회사 잉크테크 유기 은 착체 화합물을 포함하는 반사막 코팅액 조성물 및이를 이용한 반사막 제조방법

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH11277699A (ja) * 1998-03-31 1999-10-12 Ube Ind Ltd 金属層積層フィルム
JP2003071983A (ja) * 2001-06-04 2003-03-12 Ube Ind Ltd 放電処理ポリイミドフィルム、放電処理方法、金属薄膜付きポリイミドフィルムおよびその製造方法
KR20060078530A (ko) * 2004-12-31 2006-07-05 주식회사 케이씨씨 부착력이 향상된 금속효과를 내는 고광택시트 제조방법
KR100727483B1 (ko) * 2006-04-29 2007-06-13 주식회사 잉크테크 유기 은 착체 화합물을 포함하는 반사막 코팅액 조성물 및이를 이용한 반사막 제조방법

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