EP1377461A2 - Method for forgery-proof labeling of items, and forgery-proof label - Google Patents

Method for forgery-proof labeling of items, and forgery-proof label

Info

Publication number
EP1377461A2
EP1377461A2 EP01971633A EP01971633A EP1377461A2 EP 1377461 A2 EP1377461 A2 EP 1377461A2 EP 01971633 A EP01971633 A EP 01971633A EP 01971633 A EP01971633 A EP 01971633A EP 1377461 A2 EP1377461 A2 EP 1377461A2
Authority
EP
European Patent Office
Prior art keywords
layer
forgery
electromagnetic waves
proof
applied
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.)
Granted
Application number
EP01971633A
Other languages
German (de)
French (fr)
Other versions
EP1377461B2 (en
EP1377461B1 (en
Inventor
Georg Bauer
Wolf Bertling
Jörg HASSMANN
Harald Walter
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.)
HUECK FOLIEN GMBH
Original Assignee
November AG Novus Medicatus Bertling Gesell f Molekular Medizin
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
Family has litigation
Priority to DE10042461 priority Critical
Priority to DE10042461A priority patent/DE10042461C2/en
Application filed by November AG Novus Medicatus Bertling Gesell f Molekular Medizin filed Critical November AG Novus Medicatus Bertling Gesell f Molekular Medizin
Priority to PCT/DE2001/003205 priority patent/WO2002018155A2/en
Publication of EP1377461A2 publication Critical patent/EP1377461A2/en
Publication of EP1377461B1 publication Critical patent/EP1377461B1/en
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=7654219&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1377461(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application granted granted Critical
Publication of EP1377461B2 publication Critical patent/EP1377461B2/en
Application status is Not-in-force legal-status Critical
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/20Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
    • B42D25/29Securities; Bank notes
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D25/00Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
    • B42D25/30Identification or security features, e.g. for preventing forgery
    • B42D25/36Identification or security features, e.g. for preventing forgery comprising special materials
    • B42D25/373Metallic materials
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D2033/00Structure or construction of identity, credit, cheque or like information-bearing cards
    • B42D2033/10Metallic material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D2033/00Structure or construction of identity, credit, cheque or like information-bearing cards
    • B42D2033/18Reflecting material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B42BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42DBOOKS; BOOK COVERS; LOOSE LEAVES; PRINTED MATTER CHARACTERISED BY IDENTIFICATION OR SECURITY FEATURES; PRINTED MATTER OF SPECIAL FORMAT OR STYLE NOT OTHERWISE PROVIDED FOR; DEVICES FOR USE THEREWITH AND NOT OTHERWISE PROVIDED FOR; MOVABLE-STRIP WRITING OR READING APPARATUS
    • B42D2035/00Nature or shape of the markings provided on identity, credit, cheque or like information-bearing cards
    • B42D2035/12Shape of the markings
    • B42D2035/20Optical effects
    • B42D2035/24Colours

Abstract

The invention relates to a method for forgery-proof labeling of items, such as credit cards, bank notes and the like, comprising the following steps: (a) applying, to a first layer (1) that reflects electromagnetic waves, an inert second layer (3) that is permeable to electromagnetic waves, said second layer having a predetermined thickness, (b) applying, to said second layer (3), a third layer (4) that is formed by metal clusters, and (c) linking the first layer (1) of the label so produced with the item.

Description

description

A process for the forgery-proof marking of articles and forgery-proof marking

The invention relates to a method for forgery-proof marking of articles such as check cards, banknotes, packages and the like. It further relates to a forgery-proof marking.

In the prior art, it is known to provide it to prove the authenticity of credit card or bank notes holograms. Further, to prove the authenticity of an article magnetic codes are mounted on magnetic strip or fluorescing markings. The known markers can be forged relatively simple.

From US 5,611,998 an opto-chemical sensor is known. In this case, a chemically reactive layer is applied to a metal layer that changes in volume when contacted with a substance to be detected a solution containing. On the chemically reactive layer, a layer formed of metallic clusters is applied. By binding the substance to be detected, the distance between the layer formed from metallic clusters, and the metal layer changes. At the same time, the absorption of irradiated onto the sensor light changes. The presence of the detected substance causes a color change of the sensor. The known sensor is not suitable for the forgery-proof marking of objects. A color change occurs only when a load of the sensor to a liquid phase. On contact with moisture or liquids can also occur to a reaction which triggers a color signal or modified.

The object of the invention is to provide a method for marking objects as well as a marker which provide a simple and economical manner, a high security against counterfeiting.

This object is solved by the features of claims 1, 2,. 15 and 16 Expedient refinements emerge from the features of claims 3 to 14 and 17 to 29. FIG.

According to the invention a method for forgery-proof marking of articles such as check cards, bank notes and the like is. Is provided, wherein

a) is brought listed on a reflecting electromagnetic waves first layer permeable to electromagnetic waves, inert second layer with a predetermined thickness,

b) a third layer formed from metallic clusters on the second layer is applied and

c) the first layer of the label produced in this way associated with the object.

With the aforementioned features, a tamper evident permanently visible marking can be produced in a simple and inexpensive manner.

In further accordance with the invention is a method for forgery-proof marking of articles such as check cards, banknotes and the like., Provided, wherein a) on a reflecting electromagnetic waves first layer permeable to electromagnetic waves, inert second layer with a predetermined thickness is applied,

b) the first layer of the label produced in this way is connected to the object and

c) is applied on a substrate a gebil- an end of metallic clusters third layer so as to

Visualization of the marker can be arranged at a predetermined distance from the first layer.

The further procedural solution enables in a simple and inexpensive manner an invisible marking of an article. The marker is particularly fraud-proof. It can be visualized by contacting with the inventively coated substrate.

The second layer is applied advantageously structured in both methods. When structuring it may be a structure in the surface in the manner of a pattern or a drawing. but it can be a relief-type structure. In this case the mark appears in different colors.

According to a further embodiment feature, a permeable electromagnetic wave inert fourth layer is applied to the third layer. The fourth layer primarily serves to protect the covered layers.

The substrate may be made of a material transparent to electromagnetic waves material, preferably made of glass or plastic. first molecules are suitably applied to the third or fourth layer, which are affine to the second layer or second molecules provided thereon. In this case, polymers, silanes or structurally related compounds can be used as molecules. It is also conceivable, for example, complementary polynucleotide sequences, such as DNA, to be used as molecules. The function of the first and second molecules consists essentially of adhering the substrate in a fixed predetermined distance to the label.

The metal clusters can be prepared, for example made of silver, gold, platinum, aluminum, copper, tin or indium. The second and / or fourth layer may be made from any of the following materials: metal oxide, Metallni- trit, metal carbide, particularly of silicon oxide, carbide, - nitrite, tin oxide, nitrite, aluminum nitrite or polymer, in particular polycarbonate (PC (), polyethylenes (PE), polypropylene (PP), polyurethane (PU), polyimide (PI), polystyrene (PS) or polymethacrylate PMA). These materials are chemically substantially inert. They are insensitive to moisture. The function of the second layer consists essentially to provide a predetermined distance from the third layer and / or a predetermined structure permanently.

In a further embodiment it is provided that a coloring the mark-forming becomes visible at a distance between the first and the third layer of less than 2 microns. The color depends on the observation angle and characteristic. For this purpose, the first layer by means of a device for generating electromagnetic waves, preferably by means of LASER, fluorescent lamp, light emitting diode or xenon lamp is irradiated. The label may be identified with a device for determining the optical properties of the light reflected from the first layer electromagnetic waves. It may absorption, with the device for determining the optical properties are preferably at different observation angles is measured. Such a determination of the optical properties enables a high security against counterfeiting.

According to a further embodiment feature is envisaged that the layers is at least partly produced by means of thin film technology / are. Are in particular Va kuumbeschichtungstechnologien and the like. Into consideration.

According to a further embodiment feature, it is provided that at least one of the layers is made of a material having an anisotropic refractive index. Preferably, the second layer of material is made chung index anisotropic Bre-. The material can be, eg, liquid crystal polymers, both at different observation angles, ie angles to the z-axis, as well as under different angles of rotation, that show angles in the xy plane, a characteristic color.

According to a further embodiment feature, one of the layers may be made of a material at least whose optical properties can be changed selectively by the application of the layer. The material may for example be a photosensitive polymer whose refractive index can be changed by irradiation with a suitable wavelength.

According to the invention further comprises a tamper-proof label for objects, such as check cards, banknotes and the like., suggested you being connected to a with the object reflecting electromagnetic waves first layer a is permeable for electromagnetic waves, inert second layer with a predetermined thickness applied, and wherein a third layer formed of metallic clusters is applied to the second layer. - Such a label is always visible; she is very tamper proof.

In further accordance with the invention is a forgery-proof labeling of objects, such as check cards, banknotes and the like., Provided, connected to a with the object reflecting electromagnetic waves first layer permeable to electromagnetic waves, inert second layer with a predetermined thickness listed is introduced. - Such a marking is invisible.

Unless the surface of the object to be marked is made of a metal already of an electromagnetic wave reflecting material, for example, the first layer may be formed by the object itself.

A third layer formed from metallic clusters may be deposited on a substrate in such a way that it can be arranged for visualization of the marker in a predetermined distance from the first layer.

Because of the other design features of the forgery-proof marking is made to the preceding embodiments of the procedure.

Below with reference to drawings, embodiments of the invention are explained in more detail. Show it:

Fig. 1 is a schematic cross-sectional view of a first permanently visible marking,

Fig. 2 is a schematic cross-sectional view of a second permanently visible marking, Fig. 3 is a schematic cross-sectional view of a non-permanently visible first label and a suitable substrate for the visualization,

Fig. 4 is a schematic cross-sectional view of a non-permanently visible second mark and a suitable substrate for the visualization,

Fig. 5. absorption spectra of a label according to Fig. 1 at various observation angles and

Fig. 6 is a quantitative evaluation of the spectra of FIG. 5 at different wavelengths.

In the embodiment shown in FIGS. 1 to 4 marks an electromagnetic wave is referred reflective first layer 1. This may be a metal foil such as aluminum foil, act. However, the first layer 1 may also be a layer formed of clusters, which is applied to a support. 2 The carrier 2 may be the object to be marked. The clusters are preferably made of gold. Likewise, it may also in the embodiment shown in Figs. 1 and 3, the first layer 1 to the subject, provided that the surface thereof is formed of an electromagnetic wave reflecting material.

deposited on the first layer 1 is a chemically inert second layer 3. The second layer 3 has a structure. The structure is designed here in the form of a relief, which for example is configured in the manner of a bar code. The dictated ke of the second layer is preferably between 20 and 1000 nm. It is applied by thin film technology. To this end, for example, vacuum deposition methods are suitable. In the embodiment shown in Figs. 1 and 2 mark a third layer 4 made of metallic clusters is applied to the second layer 3. The third layer 4, in turn, is overlaid with a fourth layer 5, the fourth layer 5 protects the underlying layers from damage. The fourth layer 5 can as well as the second layer 3 of a chemically inert and optically transparent material such as a metal oxide, nitrite, carbide, or be made of polymer.

The markings shown in Figs. 3 and 4 are only visible when they are brought into contact with a substrate 6 on the surface of the third layer 4 formed of metallic clusters is applied. The third layer 4 may be overlaid with a fifth layer formed of the first molecules. 7 The fifth layer 7 is suitably formed from molecules that are affine to the material from which the second layer is made. 3 Upon contact of the fifth layer 7 with the second layer 3 there is thus a specific adhesion. It may also be that the second layer is covered with a further fifth layer 3. 7 In this case, the fifth layers 7 are formed of molecules with each other have an affinity. It can involve, which are complementary to each other polymers to bio. but the fifth layer 7 may also be made from other polymers, silanes nen and / or structurally related compounds.

The substrate 6 is made of a transparent material, for example from

Glass or plastic.

The function of the mark is as follows:. At an irradiation of light from a light source such as a laser, a fluorescent lamp or a xenon lamp to an embodiment shown in Figures 1 and 2 mark this light is reflected at the first layer 1. By an interaction of the reflected light with the metallic clusters formed from the third layer 4, a portion of the incident light is absorbed. The reflected light has a characteristic spectrum. The mark appears in color. The pendent coloring depend from irradiation or observation angle serves as a tamper-proof evidence of the authenticity of the marking.

In the embodiment shown in Fig. 3 and 4, only the label optically transparent formed second layer 3 is applied to the electromagnetically reflective first layer 1. The second layer 3 may be formed of chemically inert materials, such as silicon oxide, carbide, nitrite, tin oxide or - nitrite or consist of aluminum oxide or -nitit. The label is not initially visible.

When applying the third layer 4 provided with the optically transparent substrate 6 there may be an interaction between the light reflected at the first layer 1 of light and the third layer. The result is again a color effect that is observable by the, preferably made of glass substrate. 6

To ensure that the required for generation of the color effect given distance between the first 1 and the third layer 4 is set, can the third

Layer 4 may be covered with a fifth layer. 7 Upon contact of the fifth layer 7 with the second layer 3, the substrate 6 adheres to the label. It adapts a predetermined distance between the third layer 4 and the ER-most layer. 1 In consideration of the interaction to generate the parameter is made to US 5,611,998, WO 98/48275 referenced WO 99/47702 and, the disclosure of which is hereby incorporated.

The spectra of a mark shown in Fig. 5 in FIG. 1 were measured by a UV / VIS spectrometer Lambda 25 from Perkin Eimer, using a reflective insert. From Fig. 5 it can be seen that the longer wavelength Pe- ak shifts with increasing observation angle to shorter wavelengths down. Furthermore, a fixed peak is observed, which is due to the silver clusters.

In Fig. 6 is a quantitative evaluation of the spectra of FIG. 5 is shown in each case at two different wavelengths. In the considered wavelengths, depending on the observation angle a modified absorption is observed. The absorption pattern is characteristic of the authenticity of the marking.

LIST OF REFERENCE NUMBERS

1 first layer

2 carrier

3 second layer

4 third layer

5 fourth layer

6 substrate

7 fifth layer

Claims

claims
1. A method for forgery-proof marking of articles such as check cards, banknotes, packages and the like. Wherein
a) reflective to an electromagnetic wave first layer (1) is applied a permeable for electromagnetic waves, inert second layer (3) having a predetermined thickness,
b) applying a third layer (4) formed from metallic clusters on the second layer (3) and
c) the first layer (1) of the label produced in this way with the article connected.
2. Method for forgery-proof marking of articles such as check cards, banknotes, packages and the like. Wherein
a) reflective to an electromagnetic wave first layer (1) is applied a permeable for electromagnetic waves, inert second layer (3) having a predetermined thickness,
b) the first layer (1) of the label produced in this way is connected to the object and
c) is applied on a substrate (6), a third layer formed from metallic clusters (4) such that it can be arranged for visualizing the marker at a predetermined distance from the first layer (1).
3. The method according to any one of the preceding claims, wherein at least one of the layers (3,4,5) structure is applied.
4. The method according to any one of the preceding claims, wherein a transparent electromagnetic wave inert fourth layer (5) is applied on the third layer (4).
5. The method according to any one of claims 2 to 4, wherein the substrate (6) is made of a material transparent to electromagnetic waves material, preferably of glass or plastic.
6. The method according to any one of claims 2 to 5, wherein on the third (4) or fourth layer (5) comprises first molecules (7) are applied that are affine to the second layer (3) or second molecules provided thereon.
7. The method of claim 6, wherein as molecules (7) poly mers, silanes or structurally related compounds.
8. The method according to any one of the preceding claims, wherein the metallic clusters of silver, gold, platinum, aluminum, copper, tin or indium can be produced.
9. The method according to any one of the preceding claims, wherein the second (3) and / or fourth layer (5) from one of the following materials is prepared / are: metal oxide, metal tallnitrit, metal carbide, particularly of silicon oxide - carbide, nitrite oxide, tin oxide, nitrite, aluminum nitrite or polymer, in particular polycarbonate (PC), polyethylenes (PE), polypropylene (PP), polyurethane (PU), polyimide (PI), polystyrene (PS) or polymethacrylate (PMA).
10. The method according to any one of the preceding claims, wherein a coloration forming the label becomes visible at a distance between the first (1) and the third layer (4) of less than 2 microns.
11. The method according to any one of the preceding claims, wherein the label is irradiated by means of a device for generating electromagnetic waves, preferably by means of LASER, fluorescent lamp, light emitting diode or xenon lamp.
12. The method according to any one of the preceding claims, wherein the mark having a device for determining the optical properties of the of the first layer (1) oriented reflected electromagnetic waves, preferably at different observation angles, is identified.
13. The method according to any one of the preceding claims, wherein the means for determining the optical Eigenschaf- th the absorbance is measured.
14. A method according to any one of the preceding claims, wherein the layers (1, 3, 4, 5) is at least partly made by means of thin film technology / are.
15. The method according to any one of the preceding claims, wherein at least one of the layers (3, 4, 5) has an anisotropic refractive index.
16. The method according to any one of the preceding claims, wherein at least one of the layers is made of a material whose optical characteristics after application of the layer can be changed.
17. Forgery-proof label for objects, such as check cards, banknotes and the like., And connected to a with the object reflecting electromagnetic waves first layer (1) permeable to electromagnetic waves, inert second layer (3) is applied with a predetermined thickness, and wherein a third layer (4) formed of metallic clusters to the second layer (3) is applied.
18. Forgery-proof label for objects, such as
Check cards, banknotes and the like., And connected to a with the object reflecting electromagnetic waves first layer (1) permeable to electromagnetic waves, inert second layer (3) is applied with a predefined NEN thickness.
19. Forgery-proof marking according to claim 18, wherein a third layer formed from metallic clusters (4) in such a way on a substrate (6) is applied so that it can be arranged for visualization of the marker in a predetermined distance from the first layer (1).
17 to 19, comprising 20 Forgery-proof marking according to one of claims at least one of the layers (1, 3, 4.5) has a structure.
wherein a third layer (4) covering permeable to electromagnetic waves inert fourth layer (5) is provided 21 forgery-proof marking according to one of claims 17 to 20.
22. Forgery-proof marking 18 to 21, wherein the substrate (6) is made of a material transparent to electromagnetic waves material, preferably of glass or plastic according to one of the claims.
23. Forgery-proof marking according to one of claims 18 to 22, wherein on the third (4) or fourth layer (5) comprises first molecules (7) are applied that are affine to the second layer (3) or provided thereon second molecules.
24. Forgery-proof marking according to claim 23, wherein the molecules (7) made from polymers, silanes or structurally related compounds are produced.
25. Forgery-proof marking according to one of claims 17 to 24, wherein the metallic clusters of silver, gold, platinum, aluminum, copper, tin or indium are formed.
26. Forgery-proof marking according to one of claims 17 to 25, wherein the second (3) and / or fourth layer (5) from one of the following materials is prepared / are: metal oxide, metal nitrite, metal carbide, particularly of silicon oxide, carbide, - nitrite, tin oxide, nitrite, alumina, - nitrite or polymer, in particular polycarbonate (PC), polyether thylene (PE), polypropylene (PP), polyurethane (PU), polyimide
(PI), polystyrene (PS) or polymethacrylate (PMA).
27. Forgery-proof marking 17 to 26, wherein a uniquely identifiable coloring can be recognized according to any one of claims with a distance between the first (1) and the third layer (4) of less than 2 microns.
wherein for irradiating the mark 28 is provided Forgery-proof marking according to one of claims 17 to 27, means for generating electromagnetic waves, preferably a LASER, a fluorescent lamp, light emitting diode or a xenon lamp.
17 to 28, wherein for identifying the marking tung a Einrich- reflected for determining the optical properties of the of the first layer (1) electromagnetic waves is provided 29 forgery-proof marking according to one of the claims.
30. Forgery-proof marking 17 to 29, wherein, preferably, can be measured according to any one of claims to the device for determining the optical properties of the absorption at various observation angles.
31 Forgery-proof marking according to one of claims 17 to 30, wherein the layers (1, 3, 4, 5) is made by means of thin film technology / are.
EP01971633A 2000-08-29 2001-08-16 Method for forgery-proof labeling of items, and forgery-proof label Not-in-force EP1377461B2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE10042461 2000-08-29
DE10042461A DE10042461C2 (en) 2000-08-29 2000-08-29 A process for the forgery-proof marking of articles and forgery-proof marking
PCT/DE2001/003205 WO2002018155A2 (en) 2000-08-29 2001-08-16 Method for forgery-proof labeling of items, and forgery-proof label

Publications (3)

Publication Number Publication Date
EP1377461A2 true EP1377461A2 (en) 2004-01-07
EP1377461B1 EP1377461B1 (en) 2005-03-09
EP1377461B2 EP1377461B2 (en) 2013-01-16

Family

ID=7654219

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01971633A Not-in-force EP1377461B2 (en) 2000-08-29 2001-08-16 Method for forgery-proof labeling of items, and forgery-proof label

Country Status (9)

Country Link
US (1) US7396557B2 (en)
EP (1) EP1377461B2 (en)
JP (1) JP4049215B2 (en)
AT (1) AT290473T (en)
AU (1) AU9161001A (en)
CA (1) CA2419846C (en)
DE (1) DE10042461C2 (en)
ES (1) ES2213502T1 (en)
WO (1) WO2002018155A2 (en)

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AT290473T (en) 2005-03-15
US7396557B2 (en) 2008-07-08
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US20040026917A1 (en) 2004-02-12
EP1377461B2 (en) 2013-01-16
WO2002018155A2 (en) 2002-03-07
EP1377461B1 (en) 2005-03-09
JP2004507790A (en) 2004-03-11
ES2213502T1 (en) 2004-09-01
JP4049215B2 (en) 2008-02-20
CA2419846C (en) 2009-08-18
DE10042461A1 (en) 2002-03-14
CA2419846A1 (en) 2002-03-07
DE10042461C2 (en) 2002-11-07
AU9161001A (en) 2002-03-13

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