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WO2007141040A1 - Substrat avec succession de couches pour générer un effet de couleur changeant en fonction de l'angle de vue - Google Patents

Substrat avec succession de couches pour générer un effet de couleur changeant en fonction de l'angle de vue Download PDF

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Publication number
WO2007141040A1
WO2007141040A1 PCT/EP2007/005101 EP2007005101W WO2007141040A1 WO 2007141040 A1 WO2007141040 A1 WO 2007141040A1 EP 2007005101 W EP2007005101 W EP 2007005101W WO 2007141040 A1 WO2007141040 A1 WO 2007141040A1
Authority
WO
WIPO (PCT)
Prior art keywords
layer
substrate
substrate according
sequence
absorber
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/EP2007/005101
Other languages
German (de)
English (en)
Inventor
Hans Kosak
Ralph Domnik
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
IDENTIF GmbH
Original Assignee
IDENTIF GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by IDENTIF GmbH filed Critical IDENTIF GmbH
Priority to EP07785811A priority Critical patent/EP2032355A1/fr
Publication of WO2007141040A1 publication Critical patent/WO2007141040A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10018—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising only one glass sheet
    • 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
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10165—Functional features of the laminated safety glass or glazing
    • B32B17/10174—Coatings of a metallic or dielectric material on a constituent layer of glass or polymer
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3615—Coatings of the type glass/metal/other inorganic layers, at least one layer being non-metallic
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3639—Multilayers containing at least two functional metal layers
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3657—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having optical properties
    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C17/00—Surface treatment of glass, not in the form of fibres or filaments, by coating
    • C03C17/34—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions
    • C03C17/36—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal
    • C03C17/3602—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer
    • C03C17/3668—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having electrical properties
    • C03C17/3676—Surface treatment of glass, not in the form of fibres or filaments, by coating with at least two coatings having different compositions at least one coating being a metal the metal being present as a layer the multilayer coating having electrical properties specially adapted for use as electromagnetic shield

Definitions

  • the invention relates to a substrate having a layer sequence provided thereon for producing a color impression which changes as a function of the viewing angle, according to the preamble of patent claim 1.
  • Such a substrate is known from WO 02/18155.
  • the known substrate forms a forgery-proof mark, which is attached to the respective objects to prove the authenticity of means of payment, brand name products or the like.
  • a carrier glass is pretreated with a bonding agent and then applied to the carrier glass at least one layer of resin surface.
  • a liquid, UV-resistant IK polyurethane material is used, which essentially comprises a prepolymer of an aliphatic isocyanate 3asis low monomeric units and wherein a temperature is provided for curing of the resin to about 3O 0 C.
  • the object of the invention is to satisfy this need. It should be specified in particular a substrate that is characterized by a special color impression and at the same time suitable for use as window glass.
  • the reflection layer for electromagnetic waves is partially permeable. It has surprisingly been found that the change in the color impression caused by the layer sequence "reflection layer / spacer layer absorber layer" as a function of the viewing angle can still be achieved even if the reflection layer is only partially permeable.
  • the aforesaid sequence of layers can therefore be produced overall with such a transparency that it can be used in combination with a transparent to visible light substrate, for. B. window glass, is usable.
  • a window glass coated with the proposed layer sequence is characterized by a unique color impression that changes depending on the viewing angle.
  • the proposed layer sequence is characterized by a particularly high UV and Lichtstabili- fact.
  • the color impression which changes depending on the viewing direction is particularly temperature-stable. It is possible to heat a coated with the proposed layer sequence substrate to temperatures of up to 650 0 C, without that In the process, the color impression that changes depending on the angle of view changes significantly.
  • the reflection layer has a transmission of more than 20%, preferably more than 50%, particularly preferably more than 70%, for the wavelength range of visible light. It can be made of at least one of the following metals: Ag, Au, Al, Ti, Cr. It has proved to be expedient for the reflection layer to have a thickness of from 4 to 80 nm, preferably from 8 to 40 nm, particularly preferably from 10 to 20 nm.
  • the layer sequence is connected to the substrate via the reflection layer.
  • the layer sequence can also be connected to the substrate via the absorber layer. In this case, therefore, the absorber layer is applied to the substrate. The absorber layer is superimposed by the spacer layer and the reflection view.
  • the reflection layer or the absorber layer can be connected to the substrate via an adhesion-promoting layer.
  • the adhesion-promoting layer can be produced, for example, from ZnO.
  • the spacer layer expediently has a transmission of more than 90% for the wavelength range of visible light. It may have a thickness of from 20 to 1000 nm, preferably from 100 to 900 nm, particularly preferably from 200 to 800 nm.
  • the absorber layer is expediently formed from island-like clusters with a size of 5 to 100 nm. The absorber layer formed from the clusters is therefore not a continuous metallic layer but a layer in which the clusters are island-like with a predetermined average minimum distance from each other. The minimum distance is chosen so that surface plas- mons can form in the absorber layer. 5
  • the clusters can be made of at least one of the following metals: Au, Al, Ti, Zr, Ag, Cr, Cu.
  • the clusters can have an average thickness of 4 to 30 nm, preferably 5 to 20 nm, particularly preferably 8 to 16 nm.
  • the clusters advantageously have an average lateral diameter of 5 to 200 nm, preferably 10 to 100 nm, particularly preferably 15 to 50 nm.
  • the proposed absorber layer indicates the wavelength range of the visible
  • L5 advantageously has a transmission of more than 70%, preferably more than 80%, particularly preferably more than 90%.
  • it is outstandingly suitable for producing a layer sequence with an overall high transmission
  • ZQ for the wavelength range of visible light of more than 50%, preferably more than 70%, more preferably more than 80%.
  • a transparent protective layer is applied to the absorber layer.
  • the protective layer also has a transmission of more than 50%, preferably more than 70%, particularly preferably more than 90%, for the wavelength range of visible light.
  • the protective layer stabilizes the layer sequence and serves in particular against mechanical abrasion.
  • the spacer layer and / or the protective layer can be made of an oxide, nitride or oxynitride of at least one of the following elements: Si, Zn, Al, Ti.
  • the spacer layer can alternatively also be made of a polymer, preferably be made of nitrocellulose. In this case, the spacer layer may be conveniently prepared by a printing process.
  • the protective layer can also be produced from a further polymer. It can be a transparent lacquer.
  • the reflective layer and / or the spacer layer and / or the absorber layer and / or the protective layer is produced by means of a vacuum encapsulation method, in particular sputtering.
  • the aforementioned layers can be applied successively in successive steps in a single vacuum deposition equipment.
  • the substrate according to the invention may in particular be a transparent plastic film, a transparent plastic pane, window glass, preferably a window glass with a heat protection coating, or a window glass pane of a laminated glass.
  • the substrate expediently has a transmission of more than 70%, preferably more than 80%, particularly preferably more than 90%, in the visible light range.
  • the layer sequence according to the invention can be combined with conventional layer sequences provided on window glasses, in particular IR sequences reflecting layer sequences.
  • the reflection view according to the invention can replace a metal layer in IR-reflecting layer sequences.
  • the dielectric layers provided in IR layer sequences may be replaced by the spacer layer.
  • the spacer layer it is also possible for the spacer layer to be replaced by a conventional dielectric layer used in IR layer sequences.
  • FIG. 1 shows schematically a first substrate with a first layer sequence
  • Fig. 2 shows schematically the first substrate with a second
  • FIG. 3 shows schematically a second substrate with the layer sequence according to FIG. 1,
  • FIG. 4 shows the first substrate with the layer sequence according to FIG. 3, FIG.
  • Fig. 5 shows a third substrate with a third layer sequence
  • FIG. 6 shows the first substrate with the layer sequence according to FIG. 5.
  • a first layer sequence is applied to a first substrate 1 produced, for example, from window glass, in particular float glass.
  • the first layer sequence 2 is formed from a semitransparent reflection layer 3 applied to the first substrate 1, which z. B. made of aluminum or gold with a thickness of 20 nm.
  • the reflection layer 3 is superposed by a dielectric spacer layer 4 having a thickness of 400 nm.
  • the spacer layer 4 is z. B. made of Al 2 O 3 , ZnO or SiO 2 .
  • the spacer layer 4 in turn is overlaid by an absorber layer 5.
  • gert which consists of island-like arranged Ag clusters with an average thickness of 10 ran. In the plan view of the absorber layer 5, the Ag clusters have a mean lateral diameter of approximately 30 nm.
  • the absorber layer 5 in turn is superimposed by a protective layer 6, which may be made of SiO 2 or a transparent lacquer, for example.
  • the first substrate 1 is coated with a second layer sequence 7.
  • the absorber layer 5 is applied to the first substrate 1.
  • the absorber layer 5 is superimposed by the spacer layer 4.
  • the spacer layer 4 is superimposed by the semitransparent reflection layer 3.
  • the reflection layer 3 in turn is superimposed by the protective layer 6.
  • the first 2 and the second layer sequence 7 are expediently applied on that side of the glass which was in contact with the tin bath during the production process.
  • the layer sequences 2, 7 better adhere to this side.
  • the layer sequences 2, 7 can also be applied to an applied on the substrate 1 adhesive layer, which z. B. made of ZnO, are applied.
  • Fig. 3 shows a second substrate 8, which is made of a transparent plastic film.
  • the second substrate 8 is connected to the first layer sequence 2.
  • the second substrate 8 may be provided on its side facing away from the reflection layer 3 with an adhesive layer.
  • transparent packaging means or the like can be produced.
  • the second substrate 8 réellelami on a solid, preferably transparent, substrate kidney.
  • FIG. 4 shows the first substrate 1 in combination with the second substrate 8 shown in FIG. 3.
  • the second substrate 0 is glued to the first substrate 1.
  • the embodiments shown in FIGS. 3 and 4 are suitable, for example, for subsequently providing a window glass pane with the layer sequence according to the invention.
  • the second substrate 8 designed as a flexible plastic film can be bonded to a conventional window glass pane.
  • FIG. 5 shows a third substrate 9, which superimposes and underlies the first layer sequence 2.
  • the third substrate 9 may be another plastic film commonly used to make laminated glass.
  • the third substrate 9 may be adhered to two panes of glass using a suitable adhesive to produce a laminated glass pane.
  • FIG. 6 schematically shows a laminated glass pane in which the layer sequence shown in FIG. 5 is overlaid and underlaid by a window glass pane 1.

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  • Chemical & Material Sciences (AREA)
  • General Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • Laminated Bodies (AREA)
  • Surface Treatment Of Glass (AREA)
  • Joining Of Glass To Other Materials (AREA)

Abstract

La présente invention concerne un substrat (1, 8, 9) avec une succession de couches (2, 7) prévue dessus pour générer un effet de couleur changeant en fonction de l'angle de vue, la succession de couches (2, 7) comportant une couche (3) qui réfléchit les ondes électromagnétiques, une couche de distance (4) perméable aux ondes électromagnétiques placée sur la couche réfléchissante (3) et une couche absorbante (5) formée d'amas métalliques placée sur la couche de distance (4), la couche réfléchissante (3) étant en partie perméable aux ondes électromagnétiques.
PCT/EP2007/005101 2006-06-09 2007-06-08 Substrat avec succession de couches pour générer un effet de couleur changeant en fonction de l'angle de vue Ceased WO2007141040A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07785811A EP2032355A1 (fr) 2006-06-09 2007-06-08 Substrat avec succession de couches pour générer un effet de couleur changeant en fonction de l'angle de vue

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006027263.3 2006-06-09
DE200610027263 DE102006027263A1 (de) 2006-06-09 2006-06-09 Substrat mit Schichtabfolge zur Erzeugung eines in Abhängigkeit des Blickwinkels sich ändernden Farbeindrucks

Publications (1)

Publication Number Publication Date
WO2007141040A1 true WO2007141040A1 (fr) 2007-12-13

Family

ID=38474158

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2007/005101 Ceased WO2007141040A1 (fr) 2006-06-09 2007-06-08 Substrat avec succession de couches pour générer un effet de couleur changeant en fonction de l'angle de vue

Country Status (3)

Country Link
EP (1) EP2032355A1 (fr)
DE (1) DE102006027263A1 (fr)
WO (1) WO2007141040A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2559858T3 (es) * 2008-08-25 2016-02-16 Hueck Folien Ges.M.B.H. Elemento de seguridad, que puede verificarse sin ayuda auxiliar

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503851A1 (de) * 1985-02-05 1986-08-07 Interpane Entwicklungs- und Beratungsgesellschaft mbH & Co. KG, 3471 Lauenförde Hochtransparenter in durch- und aussenansicht neutral wirkender und waermedaemmender belag
DE3906374A1 (de) * 1989-03-01 1990-09-06 Leybold Ag Verfahren zum herstellen von scheiben mit hohem transmissionsverhalten im sichtbaren spektralbereich und mit hohem reflexionsverhalten fuer waermestrahlung
WO2002018155A2 (fr) * 2000-08-29 2002-03-07 november Aktiengesellschaft Gesellschaft für Molekulare Medizin Procede pour marquer de façon infalsifiable des objets, et marquage infalsifiable
EP1239307A1 (fr) * 2001-03-09 2002-09-11 Sicpa Holding S.A. Système magnétique d'interférence de couches minces
WO2003016073A1 (fr) * 2001-08-16 2003-02-27 november Aktiengesellschaft Gesellschaft für Molekulare Medizin Marquage infalsifiable pour objets et procede d'identification d'un tel marquage
US20030203223A1 (en) * 2000-10-10 2003-10-30 Flex Products, Inc. Titanium-containing interference pigments and foils with color shifting properties
WO2005077668A1 (fr) * 2004-02-16 2005-08-25 Hueck Folien Ges.M.B.H. Marque de securite infalsifiable a couleur variable selon l'orientation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19807930B4 (de) * 1998-02-25 2009-04-30 Interpane Entwicklungs- Und Beratungsgesellschaft Mbh & Co.Kg Herstellung eines thermisch hochbelastbaren wärmereflektierenden Belags
DE10141102A1 (de) * 2001-08-22 2003-04-03 Schott Glas Cadmiumfreie optische Steilkantenfilter
AT413360B (de) * 2002-08-06 2006-02-15 Hueck Folien Gmbh Verfahren zur herstellung von fälschungssicheren identifikationsmerkmalen
EP1674433A4 (fr) * 2003-09-17 2007-06-13 Central Glass Co Ltd Verre stratifie

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3503851A1 (de) * 1985-02-05 1986-08-07 Interpane Entwicklungs- und Beratungsgesellschaft mbH & Co. KG, 3471 Lauenförde Hochtransparenter in durch- und aussenansicht neutral wirkender und waermedaemmender belag
DE3906374A1 (de) * 1989-03-01 1990-09-06 Leybold Ag Verfahren zum herstellen von scheiben mit hohem transmissionsverhalten im sichtbaren spektralbereich und mit hohem reflexionsverhalten fuer waermestrahlung
WO2002018155A2 (fr) * 2000-08-29 2002-03-07 november Aktiengesellschaft Gesellschaft für Molekulare Medizin Procede pour marquer de façon infalsifiable des objets, et marquage infalsifiable
US20030203223A1 (en) * 2000-10-10 2003-10-30 Flex Products, Inc. Titanium-containing interference pigments and foils with color shifting properties
EP1239307A1 (fr) * 2001-03-09 2002-09-11 Sicpa Holding S.A. Système magnétique d'interférence de couches minces
WO2003016073A1 (fr) * 2001-08-16 2003-02-27 november Aktiengesellschaft Gesellschaft für Molekulare Medizin Marquage infalsifiable pour objets et procede d'identification d'un tel marquage
WO2005077668A1 (fr) * 2004-02-16 2005-08-25 Hueck Folien Ges.M.B.H. Marque de securite infalsifiable a couleur variable selon l'orientation

Also Published As

Publication number Publication date
DE102006027263A1 (de) 2007-12-13
EP2032355A1 (fr) 2009-03-11

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