CN103492191A - Activatable security element - Google Patents
Activatable security element Download PDFInfo
- Publication number
- CN103492191A CN103492191A CN201180060564.9A CN201180060564A CN103492191A CN 103492191 A CN103492191 A CN 103492191A CN 201180060564 A CN201180060564 A CN 201180060564A CN 103492191 A CN103492191 A CN 103492191A
- Authority
- CN
- China
- Prior art keywords
- safety element
- color state
- light
- luminous
- property material
- 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
Links
- 238000004519 manufacturing process Methods 0.000 claims abstract description 34
- 238000000149 argon plasma sintering Methods 0.000 claims abstract description 29
- 230000031700 light absorption Effects 0.000 claims abstract description 29
- 230000004913 activation Effects 0.000 claims abstract description 27
- 239000011159 matrix material Substances 0.000 claims abstract description 9
- 230000005670 electromagnetic radiation Effects 0.000 claims abstract description 8
- 239000000463 material Substances 0.000 claims description 95
- 238000000034 method Methods 0.000 claims description 20
- 230000003213 activating effect Effects 0.000 claims description 17
- 239000004952 Polyamide Substances 0.000 claims description 8
- 229920002647 polyamide Polymers 0.000 claims description 8
- HQQTZCPKNZVLFF-UHFFFAOYSA-N 4h-1,2-benzoxazin-3-one Chemical class C1=CC=C2ONC(=O)CC2=C1 HQQTZCPKNZVLFF-UHFFFAOYSA-N 0.000 claims description 7
- 238000010438 heat treatment Methods 0.000 claims description 7
- YGSDEFSMJLZEOE-UHFFFAOYSA-N salicylic acid Chemical compound OC(=O)C1=CC=CC=C1O YGSDEFSMJLZEOE-UHFFFAOYSA-N 0.000 claims description 7
- 239000003153 chemical reaction reagent Substances 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 5
- 230000005284 excitation Effects 0.000 claims description 3
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 claims description 3
- 229960004889 salicylic acid Drugs 0.000 claims description 3
- 230000002427 irreversible effect Effects 0.000 abstract description 6
- 238000012795 verification Methods 0.000 abstract description 3
- 238000004020 luminiscence type Methods 0.000 abstract description 2
- 230000000638 stimulation Effects 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- 239000000835 fiber Substances 0.000 description 36
- 230000005855 radiation Effects 0.000 description 10
- 230000003595 spectral effect Effects 0.000 description 10
- 239000000975 dye Substances 0.000 description 8
- 230000008859 change Effects 0.000 description 5
- 239000008188 pellet Substances 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 description 3
- 239000004372 Polyvinyl alcohol Substances 0.000 description 3
- 239000003086 colorant Substances 0.000 description 3
- 239000002131 composite material Substances 0.000 description 3
- 239000013078 crystal Substances 0.000 description 3
- 239000012634 fragment Substances 0.000 description 3
- 238000003475 lamination Methods 0.000 description 3
- 239000004417 polycarbonate Substances 0.000 description 3
- 229920002451 polyvinyl alcohol Polymers 0.000 description 3
- 229920002725 thermoplastic elastomer Polymers 0.000 description 3
- 229920001665 Poly-4-vinylphenol Polymers 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 239000004433 Thermoplastic polyurethane Substances 0.000 description 2
- AUNAPVYQLLNFOI-UHFFFAOYSA-L [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O Chemical compound [Pb++].[Pb++].[Pb++].[O-]S([O-])(=O)=O.[O-][Cr]([O-])(=O)=O.[O-][Mo]([O-])(=O)=O AUNAPVYQLLNFOI-UHFFFAOYSA-L 0.000 description 2
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- VYXSBFYARXAAKO-WTKGSRSZSA-N chembl402140 Chemical compound Cl.C1=2C=C(C)C(NCC)=CC=2OC2=C\C(=N/CC)C(C)=CC2=C1C1=CC=CC=C1C(=O)OCC VYXSBFYARXAAKO-WTKGSRSZSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000000539 dimer Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- GNBHRKFJIUUOQI-UHFFFAOYSA-N fluorescein Chemical compound O1C(=O)C2=CC=CC=C2C21C1=CC=C(O)C=C1OC1=CC(O)=CC=C21 GNBHRKFJIUUOQI-UHFFFAOYSA-N 0.000 description 2
- MOUPNEIJQCETIW-UHFFFAOYSA-N lead chromate Chemical compound [Pb+2].[O-][Cr]([O-])(=O)=O MOUPNEIJQCETIW-UHFFFAOYSA-N 0.000 description 2
- BDAGIHXWWSANSR-UHFFFAOYSA-N methanoic acid Natural products OC=O BDAGIHXWWSANSR-UHFFFAOYSA-N 0.000 description 2
- 239000000178 monomer Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 229920001721 polyimide Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- -1 polypropylene Polymers 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 239000001054 red pigment Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- NZFNXWQNBYZDAQ-UHFFFAOYSA-N thioridazine hydrochloride Chemical compound Cl.C12=CC(SC)=CC=C2SC2=CC=CC=C2N1CCC1CCCCN1C NZFNXWQNBYZDAQ-UHFFFAOYSA-N 0.000 description 2
- 238000001429 visible spectrum Methods 0.000 description 2
- OSWFIVFLDKOXQC-UHFFFAOYSA-N 4-(3-methoxyphenyl)aniline Chemical compound COC1=CC=CC(C=2C=CC(N)=CC=2)=C1 OSWFIVFLDKOXQC-UHFFFAOYSA-N 0.000 description 1
- GJCOSYZMQJWQCA-UHFFFAOYSA-N 9H-xanthene Chemical compound C1=CC=C2CC3=CC=CC=C3OC2=C1 GJCOSYZMQJWQCA-UHFFFAOYSA-N 0.000 description 1
- ZTQSAGDEMFDKMZ-UHFFFAOYSA-N Butyraldehyde Chemical compound CCCC=O ZTQSAGDEMFDKMZ-UHFFFAOYSA-N 0.000 description 1
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 1
- 206010023126 Jaundice Diseases 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 description 1
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229920000402 bisphenol A polycarbonate polymer Polymers 0.000 description 1
- 230000001427 coherent effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 235000019253 formic acid Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- IXCSERBJSXMMFS-UHFFFAOYSA-N hydrogen chloride Substances Cl.Cl IXCSERBJSXMMFS-UHFFFAOYSA-N 0.000 description 1
- 229910000041 hydrogen chloride Inorganic materials 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- QDLAGTHXVHQKRE-UHFFFAOYSA-N lichenxanthone Natural products COC1=CC(O)=C2C(=O)C3=C(C)C=C(OC)C=C3OC2=C1 QDLAGTHXVHQKRE-UHFFFAOYSA-N 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 229920005644 polyethylene terephthalate glycol copolymer Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000004936 stimulating effect Effects 0.000 description 1
- YROXIXLRRCOBKF-UHFFFAOYSA-N sulfonylurea Chemical group OC(=N)N=S(=O)=O YROXIXLRRCOBKF-UHFFFAOYSA-N 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N urea group Chemical group NC(=O)N XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000001043 yellow dye Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; 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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/40—Manufacture
- B42D25/405—Marking
- B42D25/41—Marking using electromagnetic radiation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
- B41M3/14—Security printing
- B41M3/144—Security printing using fluorescent, luminescent or iridescent effects
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; 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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/20—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof characterised by a particular use or purpose
- B42D25/29—Securities; Bank notes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H21/00—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties
- D21H21/14—Non-fibrous material added to the pulp, characterised by its function, form or properties; Paper-impregnating or coating material, characterised by its function, form or properties characterised by function or properties in or on the paper
- D21H21/40—Agents facilitating proof of genuineness or preventing fraudulent alteration, e.g. for security paper
- D21H21/44—Latent security elements, i.e. detectable or becoming apparent only by use of special verification or tampering devices or methods
- D21H21/46—Elements suited for chemical verification or impeding chemical tampering, e.g. by use of eradicators
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/06—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using wave or particle radiation
- G07D7/12—Visible light, infrared or ultraviolet radiation
- G07D7/1205—Testing spectral properties
-
- G—PHYSICS
- G07—CHECKING-DEVICES
- G07D—HANDLING OF COINS OR VALUABLE PAPERS, e.g. TESTING, SORTING BY DENOMINATIONS, COUNTING, DISPENSING, CHANGING OR DEPOSITING
- G07D7/00—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency
- G07D7/14—Testing specially adapted to determine the identity or genuineness of valuable papers or for segregating those which are unacceptable, e.g. banknotes that are alien to a currency using chemical means
-
- B42D2033/14—
-
- B42D2033/20—
-
- B42D2033/30—
-
- B42D2035/24—
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; 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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
- B42D25/382—Special inks absorbing or reflecting infrared light
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
- B42D—BOOKS; 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
- B42D25/00—Information-bearing cards or sheet-like structures characterised by identification or security features; Manufacture thereof
- B42D25/30—Identification or security features, e.g. for preventing forgery
- B42D25/36—Identification or security features, e.g. for preventing forgery comprising special materials
- B42D25/378—Special inks
- B42D25/387—Special inks absorbing or reflecting ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- General Physics & Mathematics (AREA)
- Finance (AREA)
- Business, Economics & Management (AREA)
- Accounting & Taxation (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Credit Cards Or The Like (AREA)
- Illuminated Signs And Luminous Advertising (AREA)
Abstract
The invention provides a security element for safeguarding a document of value and/or a security document, and also a method for producing the same, wherein the security element can be produced efficiently, but can be produced, and transported, with considerably reduced security requirements having to be met. The security element comprises a matrix and at least one feature substance which, upon suitable stimulation by electromagnetic radiation, luminesces and/or absorbs light and/or scatters light. The security element has a property which is suitable for verifying the document of value and/or the security document, and is constituted by luminescence and/or light absorption and/or light scattering of the security element, and also a first colour state and a second colour state, which differs from the first colour state. Furthermore, the security element can undergo irreversible activation from the first colour state into the second colour state. Only the second colour state is the colour state which is suitable for verification purposes.
Description
Technical field of the present invention
Theme of the present invention is a kind of safety element---colored fibre for example; for the protection of value document and/or secure file; wherein; safety element has at least one luminous and/or property material light absorbing and/or scattered light; in addition, the invention still further relates to the manufacture method of safety element, a kind of value document that comprises safety element and/or secure file and a kind of method for its manufacture.
Background technology
By the known a large amount of safety elements for the protection of value document and/or secure file of prior art.Especially use colored fibre, metallic plate, thread or fragment.Safety element is introduced into during manufacture in file and can be identified based on its shape in the finished product file.For example, insert luminous colored fibre in bank note.In the situation that this is by natural lighting, does not perceive or be difficult to aware.In the situation that, by ultraviolet lighting, the luminous of property material based on being included in colored fibre can clearly identify colored fibre.
The manufacture method of known a kind of (hofbildend) colored fibre for the manufacture of forming garden from DE371948A.In the dry run of the paper of inserting this colored fibre, colored fibre sends color, and forms a garden around colored fibre, thereby can easily identify removing of fiber.
In the time can manufacturing safety element dividually and efficiently with file, safety element is favourable.Described inserting while manufacturing by file, the space structure setting that can produce safety element, it is in the situation that thread is regular, in the situation that colored fibre is random.In the situation that stimulating, ultraviolet ray can easily verify and be difficult to technically adjust described space structure setting.
Problem and task of the present invention according to prior art
Disadvantageously verified, although can be efficiently---for example, a supplier, that manufactures safety element, file manufacturer that and also must guarantee the safety of safety element when file manufacturer transports.These requirements cause the expense increased.Especially possible for the adulterator, the safety element that use is stolen is for the forgery of file.In addition, increase in the following manner security risk: more people, or rather, not only safety element manufacturer (supplier) that and also file manufacturer that, know the technical specification of safety element.
Therefore, task of the present invention is to realize that a kind of can the manufacture efficiently still can be in the situation that the security requirement obviously reduced be manufactured and the safety element of transmission.
The present invention describes with preferred embodiment
Described task will be by safety element according to claim 1 and the method for its manufacture according to claim 14 and by value document according to claim 15 and/or secure file with according to claim 16ly solve for the manufacture of method.Preferred embodiment explanation in the dependent claims of the present invention.
Security element according the invention is for the protection of value document and/or secure file.Described safety element comprises a kind of matrix and at least one property material, when by electromagnetic radiation, carrying out suitable excitation, described at least one property material is for example luminous in ultraviolet spectral limit, infrared ray spectral limit and/or limit of visible spectrum and/or absorb light and/or for example at the ultraviolet spectral limit, infrared ray spectral limit and/or limit of visible spectrum inscattering light.Safety element has a kind of feature that is applicable to verify value document and/or secure file, and described feature is luminous and/or light absorption and/or light scattering or the light diffuse reflection of safety element.Safety element has the first color state and is different from the second color state of the first color state, in described the first color state, at least one property material is luminous and/or absorb light and/or scattered light, and in described the second color state, at least one property material is luminous and/or absorb light and/or scattered light.Therefore, when authenticating documents, can easily between two states, be distinguished.By activating, safety element can be irreversibly from the first color state conversion (can activate) to the second color state, and wherein, the first color state does not have (setting) feature of the checking of being applicable to.On the contrary, the second color state of safety element is the state that is applicable to authenticating documents or arranges for this reason.This means, only in the second color state the luminous and/or light absorption of safety element and/or light scattering just allow in the above or the inside apply or insert the value document of described safety element and/or secure file authenticity checking and therefore find and therefore stop forgery or the fraud of safety element or at least significantly make its difficulty that becomes.That is to say, so design and verification method and in case of necessity for its device, make and only have when safety element is in the second color state, the authenticity of their ability display file.
Realize thus: at first manufacture safety element, described safety element has the first luminous and/or light absorption and/or light scattering in the first color state, and it is not the authenticity that is arranged for authenticating documents.But can identify, the first luminous and/or light absorption in the first color state and/or light scattering are different from the second luminous and/or light absorption and/or light scattering in the second color state, the authenticity of described the second color state display file, thereby safety element is before it is activated into set the second color state for checking, can be in the situation that there is no the manufactured and transportation of special safety measure, because the application of safety element also be not suitable for file in the first color state in.The mode of the checking of the authenticity by the file that only can realize comprising safety element in the second color state of safety element, guarantee: even, in the situation that safety element is lost in the first color state, also can successfully stop and use it to there is the file of this safety element in the second color state for reconstruction.
Of the present invention one preferred embodiment in, the first color state and the second color state are distinguished by the energy of luminous and/or light absorption and/or light scattering, in other words, color (frequency, the wavelength) difference of before activating and afterwards luminous and/or light absorption and/or light scattering.To this alternatively or addedly, the energy of the exciting light that luminous/light absorption/light scattering is required, that is to say, the absorption position of safety element also can differ from one another.For example, safety element can be luminous in visible-range, thus the first color state can be for example by glowing given and the second color state is given by green light.Alternatively, safety element is also can be in the ultraviolet spectral limit or in the infrared ray spectral limit luminous and/or absorb light and/or scattered light.Frequency or the wavelength of the radiation that also can launch by (weight) are distinguished this two states.Difference aspect the composition of the spectrum of the radiation that basically, color state can be launched at (weight).In addition, in the first color state luminous/luminous/light absorption/light scattering that light absorption/light scattering basically also can be in the first spectral region (ultraviolet ray, visible ray and/or infrared ray) and in the second color state also can be in same spectral region or another spectral region (ultraviolet, visible ray and/or infrared ray) in or also can be additionally in another spectral region (ultraviolet ray, visible ray, infrared ray).In addition, also can only by the intensity of luminous/light absorption/light scattering, distinguish this two kinds of color state, for example, there is low-intensity and there is high strength in the first color state in the second color state.
According to the present invention, luminous/light absorption/light scattering can be the radiation of arbitrary type (weight) emission basically, wherein, and by luminous radiation of launching a kind of luminescence generated by light (passing through photon excitation) preferably.Can distinguish fluorescence and phosphorescence.
Two kinds of color state of safety element are preferably given by the color state that is included in the property material in safety element.When safety element comprises a kind of unique luminous and/or property material that absorb and/or scattering, two kinds of color state of safety element can be given by two kinds of color state of described unique property material.Especially can consider different crystal structures as the first and second color state of described property material maybe can consider dimer as the first color state and monomer as the second color state.But safety element can comprise more than a kind of property material, described property material contributes to luminous and/or light absorption and/or the light scattering of safety element at least one color state of two kinds of color state of safety element.
In addition, according to the present invention, that safety element is interpreted as the entity object manufacture that can be used as separation and can be integrated into during fabrication the element in a value document and/or secure file.At this, especially be interpreted as colored fibre metallic plate, thread or fragment.But, alternatively, at this, also can include the part of value document and/or secure file, during it also was not present in file before forming and only just form hereof in manufacture process, for example, the marking on file level.Safety element for example can relate to a kind of film or film composite, and at least one property material according to the present invention is placed in described film or film composite or subsequently and for example is applied on described film or film composite by printing technology during fabrication.In addition, also relating to a kind of substrate---paper for example is placed in paper according to colored fibre metallic plate of the present invention, thread or fragment.
Value document and/or secure file are usually by the laminated film manufacture.Described film can be made by same or different material, especially by Merlon (PC), especially bisphenol-a polycarbonate, PETG (PET) and its derivative---as glycol-modified PET (PETG), PEN (PEN), polyvinyl chloride (PVC), PVA-based butyral (PVB), polymethyl methacrylate (PMMA), polyimides (PI), polyvinyl alcohol (PVA), polystyrene (PS), polyvinylphenol (PVP), polypropylene (PP), polyethylene (PE), thermoplastic elastomer (TPE) (TPE), especially thermoplastic polyurethane (TPU), acrylonitrile-butadiene-styrene (ABS) (ABS), paper,
with and derivative, the laminated film that comprises these materials in addition and the hybrid material that comprises in addition above-mentioned material make.Particularly preferably be value document and/or the secure file made by Merlon at least in part.Realize lamination by the pressure increased and the temperature of increase.Usually in the situation that 180 ℃ to 210 ℃ and higher than the pressure of 5bar in 1 second to 1 hour by the PC manufacturing documentation.For single deck tape-recorder lamination short cycle time generally, for the stacking lamination of multiple purposes long cycle time generally.
Of the present invention one preferred embodiment in, the matrix of safety element is made by polyamide.Polyamide is particularly useful for the manufacture of colored fibre, described colored fibre by the situation that 250 ℃ to 280 ℃ extruding manufacture.For this reason, to the polyamide that exists with pellet form, add luminous and/or property material light absorbing and/or scattered light, by granule heating to 250 ℃ to 280 ℃ and pushed.Thus can the realization character material be uniformly distributed.
Of the present invention another preferred embodiment in, safety element needs the processing time of at least 8 hours for from the first color state, being activated to the second color state.Advantageously, realize a kind of safety element, in described safety element only by during at least 2 hours, better during at least 4 hours, also the activation during 8 hours is processed the irreversible conversion from the first color state to the second color state is occurred better, because avoid thus the random activation of safety element from the first color state to the second color state.At this moment only be engaged in the activation of value document and/or secure file and the personnel of manufacture and just know safety element.The adulterator also can be from following: can not use the safety element of manufacturing the first color state to be included in the file of the safety element of the second color state for reconstruction.Obviously, also very practical for the upper limit that activates the duration, for example, 1000 hours.The shorter time is better naturally, shorter time allows safety element and the efficient manufacture of the file manufactured by safety element, for example the highest 500 hours, preferably the highest 100 hours, further preferably the highest 30 hours and also further preferably the highest 15 hours.
Of the present invention another preferred embodiment in, in the situation that do not have external pressure irreversibly can activate secure file, that is to say, for the activation from the first color state to the second color state, need to comprise the activation condition that can avoid external pressure.Therefore, advantageously, be chosen in enforceable activation in the situation without external pressure.For example, can use thus in the situation that applying pressure can be switched to the property material of the first color state, for example, as accounted for the pressure dominating when being extruded with color fibre.In the situation that without external pressure, especially in the situation that heating, the time of described color state by a segment length be transformed in the situation that without the external pressure heat power stable the second color state, for example,, in the situation that change between a kind of two kinds of crystalline states (crystal structure) of property material or between coherent condition (monomer/dimer/tripolymer etc.).
Of the present invention another preferred embodiment in, can activate safety element by heat treatment, that is to say, safety element needs heat treatment (in the situation that the temperature increased with respect to room temperature is processed) for from the first color state, being activated to the second color state.
Of the present invention another preferred embodiment in, can be in the situation that the temperature of at least 40 ℃ and the highest 100 ℃ irreversibly activates safety element.Especially can that is to say at least 50 ℃ and the highest 90 ℃ and especially preferably at the temperature at least 50 ℃ and the highest 85 ℃, irreversibly activate safety element, need to heat-treat at a temperature in the said temperature scope, for activating.
Of the present invention another preferred embodiment in, can irreversibly activate safety element by electromagnetic radiation, especially ultraviolet radiation, that is to say, safety element has this class feature: for its irreversible activation, and need to be by the irradiation of electromagnetic radiation, especially ultraviolet radiation.Safety element preferably needs ultraviolet-A radiation (400 to 320nm), particularly preferably the irradiation by 365nm is used for activating.This radiation preferably by the irradiation of UV-B or ultraviolet C, do not activated, because may change matrix and therefore may damage the durability of value document and/or secure file.
Of the present invention another preferred embodiment in, can that is to say by by chemical reagent, processing and irreversibly activate safety element, safety element has this class feature: for irreversible activation, need to process by chemical reagent.For example, especially with the water of steam form, can be suitable as chemical reagent.Therefore, can under steam atmosphere, realize activating.Steam atmosphere is interpreted as the air humidity that is at least 60%, preferably at least 80%.
Chemically sensitized another kind of form is that leucobase is transformed into dyestuff.Exemplarily mention the manufacture of crystal violet, wherein, by acidifying, by colourless a kind of coloured kiton colors of interstage generation.For this reason, the gas atmosphere or the vapor atmosphere that safety element can be exposed to for example comprise hydrogen chloride, formic acid and/or acetic acid.
Of the present invention another preferred embodiment in, can at the temperature of at least 40 ℃ and the highest 100 ℃ and in steam atmosphere, implement to activate.Especially in the situation that the relative air humidity of the temperature of 85 ℃ and 85% is realized activation.So select in these cases safety element, make under these conditions and just activate.
Also can under the corresponding condition of the combination with above-mentioned condition, activate safety element.Especially can be in the situation that heat treatment and/or process and irreversibly to activate safety element by electromagnetic radiation and/or by chemical reagent.
Safety element can comprise a kind of unique, be applicable to the property material that checking is equipped with the authenticity of the value document of safety element and/or secure file.Alternatively, also can comprise the various features material.Have a kind of preferably being present in two kinds of color state that differ from one another at least in property material in security element according the invention, wherein, the activation from the first color state to the second color state is irreversible.When having the various features material in safety element, each property material or all property materials can have respectively two kinds of color state, that is to say, they are differently luminous and/or absorb light and/or scattered light in two states, or various property materials or all property materials can have two kinds of color state, wherein, relevant a kind of property material is luminous and/or absorb light and/or scattered light and not luminous and/or absorb light and/or scattered light in another kind of state in a kind of state, or various property materials also can remain unchanged fully when activating safety element.
For example, a kind of First Characteristic material that irreversibly can activate has the first state and the second state, there is the first luminous and/or light absorption and/or light scattering at material described in described the first state, at material described in described the second state, there is and/or light absorption and/or light scattering feature different second luminous and/or light absorption and/or light scattering luminous from first.It is such that the difference of property material luminous/light absorption/light scattering in these two kinds of color state can as above regard to safety element itself, for example the difference of the energy by neutralizing luminous in the second color state/light absorption/light scattering in the first color state and/or given by the difference of intensity in the first color state and the second color state.Alternatively, the first property material that can activate can have the first state and the second state, show luminous and/or light absorption and/or light scattering at material described in described the first state, in described the second state, property material does not show luminous and/or light absorption and/or light scattering.Alternatively, the first property material that can activate can have the first state and the second state, do not show luminous and/or light absorption and/or light scattering at material described in described the first state, at material described in described the second state, show luminous and/or light absorption and/or light scattering.In described latter two situation, preferably there is at least another Second Characteristic material in safety element, it is being transformed into the second color state from the first color state equally with in the identical like that activation situation of First Characteristic material, thereby makes safety element can adopt two kinds of different color state.
Therefore, can also comprise the Second Characteristic material except the First Characteristic material in safety element.Correspondingly, described Second Characteristic material can be activated and equally as the First Characteristic material, there is different states aspect luminous/light absorption/light scattering, wherein, the difference of the correspondence of these two kinds of property materials needn't change in the same manner: for example, the First Characteristic material can show the first luminous and/or light absorption and/or light scattering and show that in the second state the second luminous and/or light absorption and/or light scattering and Second Characteristic material do not show luminous and/or light absorption and/or light scattering and show a kind of luminous and/or light absorption and/or light scattering in the second state in the first state in the first state, or contrary.Can realize other combinations.Alternatively, also can so provide the Second Characteristic material, make described Second Characteristic material not there are two kinds of different color state.The variation of Second Characteristic material does not occur in other words, when activating safety element.Correspondingly, the Second Characteristic material can or with independently (weight) emission of the activation of safety element or absorb determine constant luminous/absorb light/scattered light, the Second Characteristic material do not launch fully or do not absorb any luminous/absorb light/scattered light.In addition, also can comprise the 3rd, the 4th and other property material, they or may reside in two kinds of color state or be not present in separately in two kinds of color state.
The mixing of all property materials in safety element causes producing two kinds of whole structures (the synthetic color of safety element) in color state, and described whole structure single effect (color of character pair material) in corresponding states forms.
If safety element is, it comprise a spatial decomposition and to the security feature of at least one information coding, for example in value document and/or secure file or the dimensional printed chart of top personalization, can select other schemes for the design safety element.For example, safety element can embody the first information and embody the second information in the second color state in the first color state.For example, can identify by the first information, safety element does not also have, in the state in a kind of activation, to that is to say, must be counterfeit.For example, safety element can be comprised of two dimensional printed charts, wherein, the first dimensional printed chart is luminous and/or absorption light and/or scattered light under verification condition, or rather, not only when safety element also is not activated, and all luminous and/or absorb light and/or scattered light when safety element activates, and the second dimensional printed chart is only just luminous in the checking situation and/or absorb light and/or scattered light when safety element activates, on the contrary, if it is not safety element also is not activated, luminous and/or absorb light and/or scattered light.For example, the first dimensional printed chart can be the first ordered series of numbers.Two dimensional printed charts can be the second ordered series of numbers different and the first ordered series of numbers together.In the situation that identify correct ordered series of numbers, file is verified as really, and the ordered series of numbers documentary evidence only provided by the first dimensional printed chart is forged.In this case, can consider that information additional in file, for checking, in the situation that additionally comprise described information, makes authenticity or the counterfeit of identified documentation by a kind of suitable algorithm.In another embodiment, can make change color and a kind of coded message direct correlation when activating safety element: for example, file may be before activating green light and glowing after activation.Safety element for example is comprised of the word " rot " of printing in this case.Before activating, printed words " rot " manifests with green and manifests with redness after activating.
Of the present invention another preferred embodiment in, by extruding, at least one property material is inserted in matrix.As in the above for as shown in the example of polyamide like that, this has the following advantages: property material being uniformly distributed and high efficiency manufacture in matrix.
Of the present invention another preferred embodiment in, select property material from following family: described family comprises benzoxazinone and its derivative and salicylic acid and its derivative, xanthene dye---as fluorescein and rhodamine 6G,
dyestuff (premetallized dye, BASF, DE),
dyestuff (the blue or green dyestuff of phthalein, BASF, DE), chrome yellow, molybdate red pigment, aldazine Huang and kiton colors.Particularly preferably benzoxazinone and its derivative and salicylic acid and its derivative.In EP0314350A1, describe, all disclosed modified example according to the described compound of Formula I together with substituting group and other alternatives (Platzhaltern) there, especially on the 12nd page of file by Formula I and the compound clearly mentioned together with the form of the substituent of back of II of there, the fragrant urea groups benzoxazinone of mentioning according to Formula I there in WO2006/036790A1 in addition in addition is together with all open modified examples of substituent and other alternatives, and all open modified example of the sulfonylurea group benzoxazinone of mentioning according to Formula I there in WO2009/045988A2 and substituent and other alternatives, be listed in benzoxazinone derivative example and be embodied in the application's disclosure.
Such as has been described previously, of the present invention another preferred embodiment in, safety element has at least one second luminous and/or property material light absorbing and/or scattered light, and wherein, described at least one Second Characteristic material can not change by activation.Only exemplarily enumerate YVO
4: Eu
3+and YVO
4: Tb
3+as the second suitable luminous and/or property material light absorbing and/or scattered light.Basically, most of inorganic dyestuffs are all stable and therefore immutable under these activation conditions.
If use a kind of the second stable luminous and/or property material light absorbing and/or scattered light, can use a kind of when irreversibly activating safety element impaired feature material as first luminous and/or property material light absorbing and/or scattered light.For example, the First Characteristic material relates to a kind of thermally labile and/or with respect to the unsettled property material of the irradiation by electromagnetic radiation.Described First Characteristic material is irreversibly damaged when activating.More advantageously use the First Characteristic material in following concentration: the luminous and/or absorption light of launching by the First Characteristic material and/or scattered light are than the luminous radiation of Second Characteristic material and/or scattering radiation and/or absorb at least one order of magnitude of light intensity.Therefore therefore, in the situation that irreversibly damage the First Characteristic material and in the situation that do not activate the checking that the Second Characteristic material can not be realized or be difficult to technically realize to safety element.
In addition, safety element can have two kinds of materials in the first color state, described two kinds of materials react under the condition activated, and become the luminous of a kind of the second color state that embodies safety element and/or absorb the property material of the characteristic of light and/or scattered light.Therefore, described two kinds of materials are analytes of the property material of formation when activating.
There is at least one security element according the invention according to value document of the present invention and/or secure file.
The example of value document and/or secure file has: travelling passport, identity card, driving license, car licence, automobile dispatch from the factory that card, visa, cheque card and credit card, check, company identity card, right prove, membership card, present voucher and purchase voucher and (game) chip.Particularly preferably, value document and/or secure file are corresponding to the ID-1 according to ISO7810 or ID-2 form and with the data page of the file of the ID-3 form according to ISO7810.
Method for the manufacture of safety element according to the present invention comprises the following steps:
A) be provided at safety element in the first color state and
B) by activation, make safety element irreversibly from the first color state, be converted to the second color state.
The described preferred of safety element especially can correspondingly be applied on described method about the embodiment of irreversible activation.
According to value document for the manufacture of thering is the safety element in the second color state of the present invention and/or the method for secure file, comprise the following steps:
A) be provided at the safety element in the first color state, and where necessary the safety element in the first color state be transported to the manufactured place of value document and/or secure file,
B) by activation make safety element irreversibly from the first color state be converted to the second color state and
C) safety element in the second color state is integrated in value document and/or secure file.
Preferably, implement described method step with the order of regulation.Can implement respectively at least another method step between various method steps.
Advantageously; can in not protected zone, manufacture efficiently safety element in the first color state and also be simplified to the transmission of the manufactured place of value document and/or secure file subsequently, because security that only just must the assurance production environment after activating safety element.Additional activation step is favourable, because the load that only safety element rather than whole file are activated.Iff just activate safety element in the file finished product, whole documents all must bear for example thermic load, and the service life of therefore reducing file.
Below according to example, explain the present invention:
1. example:
Add a kind of substituted benzoxazinone-derivative to a kind of polyamide pellet and be squeezed into colored fibre as luminous property material and under 280 ℃.Colored fibre emits white light.Colored fibre can be applied to above the PC-film and 190 ℃ of laminated and within 60 minutes, form a file.Can observe the colored fibre emitted white light hereof.In order to be activated before manufacturing documentation, colored fibre can be 85 ℃ and in the situation that 85% r.h. (relative humidity) storage 5 days.Colored fibre green light subsequently.As mentioned above, after in colored fibre is integrated into a file, also show this luminous.
2. example:
Add a kind of substituted salicyclic acid derivatives to a kind of polyamide-pellet and be squeezed into colored fibre as luminous property material and at 280 ℃ of temperature.The colored fibre blue light-emitting.Colored fibre can be applied on the PC film and 190 ℃ of laminated and within 60 minutes, become a file.Can observe the colored fibre of blue light-emitting hereof.In order to be activated before manufacturing documentation, colored fibre can be in the situation that 85 ℃ and 85% r.h. (relative humidity) storage 5 days.Colored fibre green light subsequently.As mentioned above, after in colored fibre is integrated into a file, also show this luminous.
3. example
Add fluorescein as luminous property material and add YVO to a kind of polyamide pellet
4: Tb
3+as the second luminous property material and be squeezed into colored fibre at 280 ℃ of temperature.Colored fibre sends cyan light.By the irradiation with 365nm, within 24 hours, realize activating.Colored fibre glows subsequently.
4. example
Add rhodamine 6G as luminous property material and add YVO to a kind of polyamide pellet
4: Tb
3+as the second luminous property material and be squeezed into colored fibre under 280 ℃.Colored fibre jaundice look-crocus-light.By the irradiation with 365nm, within 24 hours, activated.Colored fibre green light subsequently.
Only exemplarily enumerate and can irradiate and/or 50 to 85 ℃ of activation by ultraviolet ray
dyestuff and
dyestuff is as other property materials that can use in security element according the invention.In addition, can by process the chrome yellow and the molybdate red pigment that activate under 50 to 85 ℃, (at the temperature increased, decompose, thereby a kind of hiding dyestuff becomes visible), and it is also applicable to irradiate the aldazine yellow dye and the kiton colors that activate by ultraviolet ray.
Claims (16)
1. the safety element for the protection of value document and/or secure file, comprise a kind of matrix and at least one property material, when by electromagnetic radiation, carrying out suitable excitation, described at least one property material is luminous and/or absorb light and/or scattered light, wherein, in order to verify described value document and/or secure file, by activating, described safety element irreversibly can be switched to or is transformed into the second color state that is different from described the first color state from the first color state, luminous and/or absorption light and/or scattered light at least one property material described in described the first color state, luminous and/or absorption light and/or scattered light at least one property material described in described the second color state, and only described the second color state is the color state that is applicable to checking.
2. safety element according to claim 1, is characterized in that, described the first color state and described the second color state are distinguished by described energy luminous and/or light absorption and/or light scattering.
3. according to the described safety element of any one of the preceding claims, it is characterized in that, described matrix is made by polyamide.
4. according to the described safety element of any one of the preceding claims, it is characterized in that, described safety element is for be activated to described the second color state needs time of at least 8 hours from described the first color state.
5. according to the described safety element of any one of the preceding claims, it is characterized in that, described safety element needs activation condition for from described the first color state, being activated to described the second color state, and described activation condition comprises should avoid external pressure.
6. according to the described safety element of any one of the preceding claims, it is characterized in that, described safety element needs heat treatment for from described the first color state, being activated to described the second color state.
7. safety element according to claim 6, is characterized in that, implements described heat treatment at the temperature of at least 40 ℃ and the highest 100 ℃.
8. according to the described safety element of any one of the preceding claims, it is characterized in that, in order from described the first color state, to be activated to described the second color state, irradiation, especially ultraviolet ray that described safety element is exposed to by electromagnetic radiation are irradiated.
9. according to the described safety element of any one of the preceding claims, it is characterized in that, in order from described the first color state, to be activated to described the second color state, described safety element is subject to the processing by chemical reagent.
10. safety element according to claim 9, is characterized in that, the described processing by chemical reagent is included in the processing in steam atmosphere.
11. according to the described safety element of any one of the preceding claims, it is characterized in that, at least one property material is inserted in described matrix by extruding.
12. according to the described safety element of any one of the preceding claims, it is characterized in that, select at least one property material from following family: described family comprises derivative, salicylic acid and its derivative of benzoxazinone, benzoxazinone.
13. according to the described safety element of any one of the preceding claims, it is characterized in that, described safety element comprises at least one first and a kind of second luminous and/or property material light absorbing and/or scattered light respectively, wherein, only described First Characteristic material can pass through described altered activation.
14. the method for the manufacture of the safety element in the second color state, wherein, described manufacture method comprises the following steps:
A) provide according to the described safety element in the first color state of any one in claim 1 to 13 and
B) by activation, make described safety element irreversibly from described the first color state, be converted to described the second color state.
15. a value document and/or secure file, comprise that at least one is according to the described safety element of any one in claim 1 to 13.
16. the method for the manufacture of value document and/or secure file, described value document and/or secure file have the safety element in the second color state, said method comprising the steps of:
A) provide according to the described described safety element in the first color state of any one in claim 1 to 13,
B) by activation make described safety element irreversibly from described the first color state be converted to described the second color state and
C) the described safety element in described the second color state is integrated in described value document and/or secure file.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102010063012.8A DE102010063012B4 (en) | 2010-12-14 | 2010-12-14 | Activatable security element |
| DE102010063012.8 | 2010-12-14 | ||
| PCT/EP2011/070300 WO2012079905A1 (en) | 2010-12-14 | 2011-11-16 | Activatable security element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103492191A true CN103492191A (en) | 2014-01-01 |
| CN103492191B CN103492191B (en) | 2016-10-19 |
Family
ID=45047751
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201180060564.9A Active CN103492191B (en) | 2010-12-14 | 2011-11-16 | The safety element that can activate |
Country Status (4)
| Country | Link |
|---|---|
| EP (1) | EP2651654B1 (en) |
| CN (1) | CN103492191B (en) |
| DE (1) | DE102010063012B4 (en) |
| WO (1) | WO2012079905A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108656783A (en) * | 2018-04-18 | 2018-10-16 | 中国印钞造币总公司 | A kind of security article and its detection method and detecting system |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014011383A1 (en) * | 2014-08-01 | 2016-02-04 | Giesecke & Devrient Gmbh | Security element, value document substrate, security paper, value document and method for producing the same and Trensferband |
| DE102016005415A1 (en) * | 2016-05-03 | 2017-11-09 | Giesecke+Devrient Currency Technology Gmbh | Security element with luminescent imprint |
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| DE102009052073A1 (en) | 2009-11-05 | 2011-05-12 | Giesecke & Devrient Gmbh | Method of individualizing a security element |
-
2010
- 2010-12-14 DE DE102010063012.8A patent/DE102010063012B4/en active Active
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- 2011-11-16 EP EP11788415.5A patent/EP2651654B1/en active Active
- 2011-11-16 WO PCT/EP2011/070300 patent/WO2012079905A1/en unknown
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| US4544183A (en) * | 1983-08-05 | 1985-10-01 | Computer Identification Systems | Identification card with a radiant energy reactive coating |
| US5289547A (en) * | 1991-12-06 | 1994-02-22 | Ppg Industries, Inc. | Authenticating method |
| JP2001510754A (en) * | 1997-07-24 | 2001-08-07 | ギーゼッケ ウント デフリエント ゲーエムベーハー | Protected documents |
| WO2001038103A1 (en) * | 1999-11-23 | 2001-05-31 | Dsm N.V. | Laser-markable polymer composition |
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Also Published As
| Publication number | Publication date |
|---|---|
| DE102010063012B4 (en) | 2018-10-18 |
| EP2651654B1 (en) | 2015-04-08 |
| DE102010063012A1 (en) | 2012-06-14 |
| WO2012079905A1 (en) | 2012-06-21 |
| EP2651654A1 (en) | 2013-10-23 |
| CN103492191B (en) | 2016-10-19 |
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