JP2021530379A - 適合性のあるカラーシフトラミネート - Google Patents
適合性のあるカラーシフトラミネート Download PDFInfo
- Publication number
- JP2021530379A JP2021530379A JP2021502470A JP2021502470A JP2021530379A JP 2021530379 A JP2021530379 A JP 2021530379A JP 2021502470 A JP2021502470 A JP 2021502470A JP 2021502470 A JP2021502470 A JP 2021502470A JP 2021530379 A JP2021530379 A JP 2021530379A
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- Japan
- Prior art keywords
- layer
- color shift
- metal layer
- film
- shift film
- Prior art date
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- Granted
Links
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Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/06—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the coating material
- C23C14/14—Metallic material, boron or silicon
- C23C14/20—Metallic material, boron or silicon on organic substrates
- C23C14/205—Metallic material, boron or silicon on organic substrates by cathodic sputtering
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- 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
- B32B7/02—Physical, chemical or physicochemical properties
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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
- B32B7/02—Physical, chemical or physicochemical properties
- B32B7/022—Mechanical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- 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
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- C—CHEMISTRY; METALLURGY
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- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/0015—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterized by the colour of the layer
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- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
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- G02B5/085—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/08—Mirrors
- G02B5/0816—Multilayer mirrors, i.e. having two or more reflecting layers
- G02B5/085—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal
- G02B5/0858—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal the reflecting layers comprising a single metallic layer with one or more dielectric layers
- G02B5/0866—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal the reflecting layers comprising a single metallic layer with one or more dielectric layers incorporating one or more organic, e.g. polymeric layers
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- G—PHYSICS
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- G02B5/00—Optical elements other than lenses
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- G02B5/0875—Multilayer mirrors, i.e. having two or more reflecting layers at least one of the reflecting layers comprising metal the reflecting layers comprising two or more metallic layers
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/20—Filters
- G02B5/26—Reflecting filters
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- G—PHYSICS
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- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
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- G02B5/287—Interference filters comprising deposited thin solid films comprising at least one layer of organic material
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- G—PHYSICS
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- G02B5/288—Interference filters comprising deposited thin solid films comprising at least one thin film resonant cavity, e.g. in bandpass filters
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- B32—LAYERED PRODUCTS
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- B32B2307/00—Properties of the layers or laminate
- B32B2307/40—Properties of the layers or laminate having particular optical properties
- B32B2307/402—Coloured
- B32B2307/404—Multi-coloured
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Abstract
Description
全反射率
Perkin ElmerのLambdaモデル1050 WB UV/VIS/NIR分光光度計(d/8)を使用して、ASTMの方法E1164の関連項に従い、各試料の全反射率(鏡面反射を含む)を測定するための反射スペクトルを得た。全反射率は、400〜780nmの5nm刻みの全スペクトル応答(鏡面反射を含む)の算術平均(平坦な重み付け)として定義される。測定前に、トレース可能な鏡面反射基準(OMT SOLUTIONS(Eindhoven,The Netherlands)から入手可能なシリアル番号:OMT−212046−01)を使用して、350〜850nmのEM帯域範囲にわたって1nm刻みで反射較正を実施した。
Perkin ElmerのLambdaモデル1050 WB UV/VIS/NIR分光光度計(d/8)を使用して、ASTMの方法E1164の関連項に従い、各試料の拡散反射率(鏡面反射を除く)を測定した。拡散反射率は、鏡面反射ポートを除去した、400〜780nmの5nm刻みの拡散スペクトル応答の算術平均(平坦な重み付け)として定義される。測定前に、トレース可能な鏡面反射基準(OMT SOLUTIONS(Eindhoven,The Netherlands)から入手可能なシリアル番号:OMT−212046−01)を使用して、350〜850nmのEM帯域範囲にわたって1nm刻みで反射較正を実施した。
角度反射アクセサリを有するPerkin Elmer Lambda model 1050 WB UV/VIS/NIR分光光度計を、ASTM法E1164の関連区間に従って使用して、様々な角度(8、15、30、45、及び60度)で鏡面反射率を測定した。
図1に示す層を用いてサンプルを調製した。
ポリウレタンフィルム基材(層0)
40gのU910(P1)を測定し、2.7gのXL1(P1固形物の9重量%の活性成分)をゆっくりと添加して、溶液を生成した。この溶液を撹拌棒を用いて混合した後で、少なくとも15分間転動床上で混合させた。この溶液を、Gardco Paul N.GardnerCompany,Incorporated of Pompano Beach,Floridaから入手可能な28番メイヤーロッドを使用してPETライナーの光沢面上にコーティングした。このようにしていくつかの試料を作製し、次いでオーブン内で75Cで90秒間硬化させ、続いて120Cで45秒間、及び177Cで90秒間硬化させた。得られたフィルムのコーティング厚さは約25μm(1ミル)であった。
薄い金属(Al、In、Ag、Cr、Sn、Geなど)又は金属の混合物(層1)、硬化アクリレート層(層2)、及び厚い金属(Al、Ag、若しくはSn)(層3)、又は金属の最大3つの異なる層の積層体を含む、様々な色を有するこれらの光学層を、ポリウレタンコーティングPETライナーのポリウレタン側(層0)上に堆積させた。
転写フィルム形式で入手可能なOCA接着剤(層4)を用いて、実施例を作製した。OCA転写フィルムをSV480ベースフィルムに積層し、続いてポリウレタン及び光学層(層1、2及び3)のラミネートに積層した。積層には熱を含めず、178ニュートン(40ポンド)のニップ圧を使用した。伸張及び測定の前にPETライナーを除去した。
表2の各構造の実施例(幅1.5インチ(3.8cm)×長さ5インチ(12.7cm))を、アルミニウムパネル[Q−Lab Corp.(Westlake,OH)から、5052H38ベアアルミニウムの0.025インチ×2.75インチ×5.5インチ(0.64mm×1.08cm×13.98cm)のエッチング及びデスマットパネルを使用する、Q−PANEL番号ED−2.75x11NHとして入手可能]に適用し、端部をこれに巻き付けて、1.5インチ×2.75インチ(2.54cm×6.99cm)の露出した実施例を作り出した。各実施例で反射率の値を得た。
InstronのシステムID EMSYSU4242の59CPを使用して、表2の各構造の実施例(幅1.5インチ(3.8cm)、長さ5インチ(12.7cm))を、初期の3インチ(7.62cm)のクリップギャップに対して様々な量の伸張(12.5%、25%、30%、40%、及び50%)まで伸張させた。作製した表3中の各構造について、75°F、湿度75%の室内で、12インチ/分(30.48cm/分)の伸張速度で伸張を完了した。伸張されたフィルム実施例がまだインストロン内でクランプされている間に、アルミニウムパネル(Q−Lab Corp.(Westlake,OH)から、5052H38ベアアルミニウムの0.025インチ×2.75インチ×5.5インチ(0.64mm×1.08cm×13.98cm)のエッチング及びデスマットパネルを使用する、Q−PANEL番号ED−2.75x11NHとして入手可能)を、実施例の下の伸張領域の中心に配置した。次いで、伸張されたフィルム実施例を試験パネルに適用し、フィルムの下に気泡を全く伴わずに適用されていることを確認した。
層1の厚さは、その全反射スペクトルによって示される、フィルムの彩度に大きな影響を及ぼす。表2に概説されるように、異なる厚さを有する6つのサンプル(比較例CE1及び実施例E1、E2、E3、E4、及びE5)を作製し、上記のように試験した。図2は、それらの全反射スペクトルを示す。表3は、各層2(Sn金属)厚さの可視波長範囲(400nm〜700nm)において得られた最大反射率、最小反射率、及びそれらの比(Rmax/Rmin)を示す。より高いRmax/Rminは、より多くのカラフルフィルムを作り出した。
スペーサ層とも呼ばれる有機ダイクロイック層の厚さは、その全反射スペクトルによって示される反射フィルムの色に対して大きな影響を有する。表2に概説されるように、異なる厚さを有する6つのサンプル(実施例:E6、E7、E8、E9、E10、及びE11)を作製し、上記のように試験した。図3は、それらの全反射スペクトルを示す。表4は、各層の厚さの可視波長範囲(400nm〜700nm)において得られた反射ピーク波長を示す。3次ピーク波長は、ラミネートの色を決定する。このスペーサ層の厚さに応じて、層の組み合わせは、薄い光学層の強め合う干渉からのいくつかの光学反射ピークを示し得る。光干渉は、可視波長範囲内に位置する1つ以上のピークによって色を生成する。
実施例のフィルムの伸張は、それらの反射スペクトルに影響を及ぼす。より低い伸張比では、具体的には実施例E7の40%未満では、全反射ピーク(図4)は、より短い波長に移動した。伸張比が40%以上に達すると、これらの反射ピークは更に移動せず、拡散反射率(図5)は、フィルム表面が曇っているほど高くなった。これは、光学層(層1、層2及び層3)のひび割れによって引き起こされる。
ある程度まで、本発明によって作製された全てのラミネートは、視野角によるカラーシフトを示す。一例として、実施例E10の鏡面反射スペクトルを、未伸張及び25%伸張されたサンプルについて測定した(図6及び図7)。反射ピークは、視野角が増加すると、より短い波長に移動した。
反射層に使用される金属の種類は、反射性に影響を及ぼすだけでなく、色落ちすることなく伸縮性にも影響する。例えば、図8A及び8Bは、伸張されている、及び伸張されていない実施例E12、E13、比較例CE2の全反射率を示す。銀及びスズ金属を使用するラミネートは良好な伸縮性を有し、これは、伸張時に、その高い反射率及び反射ピークがより短波長にシフトすることによって示される。クロム金属を使用するラミネートは、伸張時に、あまり反射率が低く、色落ちすることによって示されるように、不良な伸縮性を有している。
いくつかの異なる金属の組み合わせを、伸縮性、反射率、及び正反射性などのそれらの特性に関して調査した。例として、比較例CE3は、半透過性層として6nmのゲルマニウム金属及び金属ミラー層として60nmのアルミニウムを使用し、比較例CE4は、半透過性層として7nmの純金金属及び金属ミラー層として60nmのスズを使用した。未伸張及び伸張されたそれらの反射スペクトルを、図9A及び9Bに示す。両方の金属の組み合わせは、実質的に低い反射率及び伸張後に反射ピーク移動がないことによって示されるように、不良な伸縮性を有する。
Claims (16)
- 伸縮性反射カラーシフトフィルムであって、
伸縮性透明ポリマー層と、
半透過性金属層と、
透明スペーサ層と、
反射金属層と、
接着剤層と、
伸縮性ベースフィルム層と、を含み、
全反射率試験によれば、フィルム本体が25%伸張されたとき、伸張時ピーク全反射率が、前記フィルム本体が未伸張である場合のピーク全反射率の80%である、伸縮性反射カラーシフトフィルム。 - 第2の透明スペーサ層と、第2の半透過性金属層とを更に含む、請求項1に記載のカラーシフトフィルム。
- 前記透明スペーサ層が、有機材料を含む、請求項1に記載のカラーシフトフィルム。
- 前記半透過性金属層が、スズ、アルミニウム、又はインジウムのうちの少なくとも1つを含む、請求項1に記載のカラーシフトフィルム。
- 前記反射金属層が、スズ、アルミニウム、又はインジウムのうちの少なくとも1つを含む、請求項1に記載のカラーシフトフィルム。
- 前記半透過性金属層及び前記反射金属層が、同じ種類の金属を含む、請求項1に記載のカラーシフトフィルム。
- 前記接着剤層の反対側の前記伸縮性ベースフィルム層の側に配置されたユーザ接着剤層を更に含む、請求項1に記載のカラーシフトフィルム。
- 前記スペーサ層が、350nm〜700nmの範囲の厚さを有する、請求項1に記載のカラーシフトフィルム。
- 伸縮性反射カラーシフトフィルムであって、
伸縮性透明ポリマー層と、
半透過性金属層と、
透明スペーサ層と、
反射金属層と、
接着剤層と、
伸縮性ベースフィルム層と、を含み、
フィルム本体が25%伸張されたとき、ピーク鏡面反射率が、法線角度で少なくとも30%である、伸縮性反射カラーシフトフィルム。 - 第2の透明スペーサ層と、第2の半透過性金属層とを更に含む、請求項9に記載のカラーシフトフィルム。
- 前記透明スペーサ層が、有機材料を含む、請求項9に記載のカラーシフトフィルム。
- 前記半透過性金属層が、スズ、アルミニウム、又はインジウムのうちの少なくとも1つを含む、請求項9に記載のカラーシフトフィルム。
- 前記反射金属層が、スズ、アルミニウム、又はインジウムのうちの少なくとも1つを含む、請求項9に記載のカラーシフトフィルム。
- 前記半透過性金属層及び前記反射金属層が、同じ種類の金属を含む、請求項9に記載のカラーシフトフィルム。
- 前記接着剤層の反対側の前記伸縮性ベースフィルム層の側に配置されたユーザ接着剤層を更に含む、請求項9に記載のカラーシフトフィルム。
- 前記スペーサ層が、350nm〜700nmの範囲の厚さを有する、請求項9に記載のカラーシフトフィルム。
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US20210308984A1 (en) | 2021-10-07 |
JP7321245B2 (ja) | 2023-08-04 |
CN112424392A (zh) | 2021-02-26 |
US11752729B2 (en) | 2023-09-12 |
EP3824111B1 (en) | 2023-08-30 |
CN112424392B (zh) | 2022-12-06 |
EP3824111A4 (en) | 2022-05-11 |
WO2020016753A1 (en) | 2020-01-23 |
EP3824111A1 (en) | 2021-05-26 |
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