EP2174796B1 - Verfahren zur Laser-Markierung eines Dokuments, das eine fixierte Farbe in einer Umgebung mit einem wechselnden Farbeffekt zeigt - Google Patents

Verfahren zur Laser-Markierung eines Dokuments, das eine fixierte Farbe in einer Umgebung mit einem wechselnden Farbeffekt zeigt Download PDF

Info

Publication number
EP2174796B1
EP2174796B1 EP08017526A EP08017526A EP2174796B1 EP 2174796 B1 EP2174796 B1 EP 2174796B1 EP 08017526 A EP08017526 A EP 08017526A EP 08017526 A EP08017526 A EP 08017526A EP 2174796 B1 EP2174796 B1 EP 2174796B1
Authority
EP
European Patent Office
Prior art keywords
laser
pigments
document
oxide
colour
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.)
Not-in-force
Application number
EP08017526A
Other languages
English (en)
French (fr)
Other versions
EP2174796A1 (de
Inventor
Heidemarie Montag
Sylke Klein
Jesus Antonio Arrieta
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.)
European Central Bank
Original Assignee
European Central Bank
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 European Central Bank filed Critical European Central Bank
Priority to ES08017526T priority Critical patent/ES2390984T3/es
Priority to EP08017526A priority patent/EP2174796B1/de
Publication of EP2174796A1 publication Critical patent/EP2174796A1/de
Application granted granted Critical
Publication of EP2174796B1 publication Critical patent/EP2174796B1/de
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • B41M3/148—Transitory images, i.e. images only visible from certain viewing angles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/24—Ablative recording, e.g. by burning marks; Spark recording
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
    • B42D2033/20—
    • B42D2035/24—

Definitions

  • the present invention relates to a process for the manufacture of laser-marked documents, preferably security documents, such as banknotes, passports, chequebooks, etc, which show a fixed colour in a surrounding with a colour shift effect.
  • security documents such as banknotes, passports, chequebooks, etc
  • a forger may succeed in copying the optically recorded document contents, for example, the optical printed image of the banknotes, in a deceptively precise way.
  • a protection against this is the authenticity feature contained in the security paper, used for producing the documents, as a result of the structure imparted to the security paper during manufacture which authenticity feature supposedly practically cannot be copied by a forger with the means available to him.
  • the application of watermarks or the introduction of a security thread into the paper is known.
  • coated substrates paper, board, film, laminate
  • laser irradiation It is possible to mark a coated substrate by ablating the laser-sensitive coating from the substrate or to create marks within the coating layer by a suitable laser.
  • the penetration of the laser beam in the coated substrate becomes higher with increasing the laser energy so that the substrate get certain tactility or become thinner until the laser beam perforates finally the substrate.
  • US 2006/0141391 A1 discloses a laser mark on a document of value, comprising at least one printing ink or printing-ink layer on a substrate, where the at least one printing ink or printing-ink layer comprises a laser-sensitive component, and wherein printing ink in at least one area of the at least one printing ink or printing ink layer is selectively removed by a laser, and optionally a microinscription/image is produced by the laser in a selectively removed area, and in the case where otherwise there would be complete removal of the printing ink from the mark, said microinscription/image is produced in the mark.
  • the laser-sensitive component used can be any material which absorbs the laser-light energy sufficiently in the stated wavelength range and converts it into heat energy.
  • pigments such as mica flakes coated with one or more metal oxides.
  • the metal oxides used here are both colourless, high-refractive-index metal oxides, such as, in particular, titanium dioxide, antimony (III) oxide, zinc oxide, tin oxide and/or zirconium dioxide, and also coloured metal oxides, such as, for example, chromium oxide, nickel oxide, copper oxide, cobalt oxide and in particular iron oxide (Fe 2 O 3 , Fe 3 O 4 ).
  • the laser-sensitive component used is particularly preferably antimony(III) oxide, alone or in combination with tin oxide.
  • the document does not specify the parameters to be used in detail, but states that "the parameters of the laser used depend on the particular application and can readily be determined by the person skilled in the art in the individual case.”
  • the only example describes the use of a Nd vanadate laser (1064 nm), the power of which is varied from 30 to 80 % in 10 % steps at a rate of 500 mm/s and a frequency of 40 to 60 kHz in pulsed operation.
  • the contrast and the colour-shift effect of the laser marks obtainable under such conditions is comparably low and difficult to identify.
  • DE 10 2006 057507 refers to a document having an optical variable security feature comprising effect pigments, which show different colours under different viewing angles and laser sensitive pigments, wherein said document also comprises a laser mark on at least part of said coating having one of the different colours of the effect pigment fixed in a surrounding with a colour shift effect.
  • WO 2005/108110 relates to a value document, particularly a banknote, comprising a sequence of layers into which visually and/or mechanically recognizable markings are introduced in the form of patterns, letters, numbers, or images under the effect of laser radiation.
  • the sequence of layers encompasses a marking layer that is composed of an ink mixture comprising a component absorbing the laser radiation and a component which is transparent to the laser radiation.
  • the markings are visually and/or mechanically recognizable as a result of an irreversible change in the optical characteristics of the ink mixture, said irreversible change being caused by the laser radiation.
  • the main objective of the present invention is to provide a method for the production of a more flexible and reliable security means for documents, especially security documents which have improved forgery-proof properties.
  • the security means can be authenticated in an easy way and exhibits optically striking characteristics.
  • the security means shall be highly flexible regarding its design, comparable small in thickness and highly durable.
  • a method for laser marking a document wherein a document comprising a coating containing at least one sort of effect pigment which shows different colours under different viewing angles and at least one sort of laser sensitive pigment is treated on at least a part of the coated area with a laser beam operated in cw mode at a rate of 500 mm/s using a power of 90 %, calculated based on a laser having a mean power of 12 W, and a laser mark having a fixed colour is obtained, wherein said fixed colour is one of the different colours which are shown under different viewing angles by the effect pigment.
  • the security means of the document allows for simply checking its authenticity by visual inspection from different viewing angles.
  • the present invention overcomes the size, flexibility and durability limitations of conventional security means.
  • the document of the present invention is extremely thin, preferably thinner than 100 ⁇ m.
  • the security document of the present invention exhibits a very high flexibility, and a very high durability.
  • the following is a detailed description of the present invention. It provides a method for laser marking a document, preferably a security document.
  • a document refers to a bounded physical representation of body of information designed with the capacity (and usually intent) to communicate.
  • a document may manifest symbolic, diagrammatic or sensory-representational information and has to be understood as a paper artefact, containing information in the form of ink marks.
  • security document refers to all kind of documents that contain at least one feature that can be used to prevent counterfeiting by providing authentication, identification or classification of the document. In particular, they include banknotes, passports, chequebooks, identity cards, credit cards and/or debit cards.
  • said document may comprise various substrates, such as, for example, paper, cardboard, board, plastics, plastic films and laminates.
  • Particularly suitable for security applications are papers containing fibres from annual plants, such as cotton (for example cotton vellum paper) or cotton fibre blends or cotton fibre mixtures with plastic fibres, which may have a single- or multilayered structure.
  • effect pigment comprises all kind of pigments showing different colours under different viewing angles and includes pigments with a pearl luster effect, with an iridescent interference effect and with a colour-shift effect.
  • Pearlescent or nacreous pigments are well known in the art and have become very popular in the creation of lustre effects in coatings.
  • the pearlescent effect is produced by the specular reflection of light from several surfaces of the platelets with parallel orientation at various depths within the coating film. Light striking the platelets is partially reflected and partially transmitted through the platelets.
  • a pearly lustre effect is produced by the dependence of reflection on viewing angle, and the sense of depth is created by reflection from many layers.
  • the platelets must be extremely smooth to maximize reflected light and any surface roughness diminishes the lustrous effect. Non fine particles or pigments with rough edges can also negatively affect the lustrous appearance.
  • Pearlescent pigments show iridescence, i. e. an optical phenomenon characterized as the property of surfaces in which hue changes according to the angle from which the surface is viewed may be seen as may be seen of soap bubbles and butterfly wings. Iridescence is caused by multiple reflections from multi-layered, semi-transparent or transparent surfaces in which phase shift and interference of the reflections modulates the incident light by amplifying or attenuating some frequencies more than others. This process is the functional analogue of selective wavelength attenuation as seen with the Fabry-Pérot interferometer.
  • the special attraction of the pearlescent pigments is the soft and smooth colour shift effect, which is unique in the art. They are very useful for security applications, because the overt colour-shift feature could not be duplicated by a copy machine.
  • the pearlescent pigments show optical effects such as directed reflection, multiple reflection, interference, and a soft colour travel (angle-dependent optical effects), which generate their optical attractiveness because of the ability of easy parallel orientation of a multitude of platelet-like particles.
  • the first is the illusion of optical depth, which is created by the arrangement of a multiplicity of platelet-like particles of a pearlescent pigment.
  • the achieved impression is the result of reflection of light at the different interfaces between pigment and binder and at the boundary layers of the effect pigment itself. Such an effect is especially strong when extended areas are profiled.
  • Multilayered pigments exhibiting such a startling effect are also called optically variable pigments.
  • optically variable pigments are used as said effect pigments.
  • Optically variable pigments are pigments that have at least two and at most four optically clearly distinguishable discrete colours at at least two different illumination or viewing angles, but preferably have two optically clearly distinguishable discrete colours at two different illumination or viewing angles or three optically clearly distinguishable discrete colours at three different illumination or viewing angles.
  • only the discrete hues and not intermediate hues are preferably present, i.e. a clear change from one colour to another colour is evident on tilting the security element (or the coated substrate in this case) which comprises the optically variable pigments.
  • Effect pigments particularly suitable for the present invention comprise a platelet-shaped transparent or semi-transparent dielectric carrier material coated with at least one layer of a metal oxide, preferably selected from the group consisting of SiO 2 , Al 2 O 3 , TiO 2 , SnO 2 , Fe 2 O 3 , Fe 3 O 4 , chromium oxides, silicon hydroxide, aluminium hydroxide or magnesium fluoride.
  • a metal oxide preferably selected from the group consisting of SiO 2 , Al 2 O 3 , TiO 2 , SnO 2 , Fe 2 O 3 , Fe 3 O 4 , chromium oxides, silicon hydroxide, aluminium hydroxide or magnesium fluoride.
  • the dielectric carrier material is preferably selected from the group consisting of platelet-shaped silicates such as natural or synthetic mica, talc, kaolin, glass plates, alumina flakes and SiO 2 -platelets.
  • effect pigments where the platelet-shaped carrier is coated with a multiple layer coating comprising layers of different metal oxides having different refractive indices.
  • layer sequences comprising alternating low refractive layers and high refractive layers.
  • the materials mentioned above are preferably used for the metal oxide layers.
  • the outer layer having optical activity is a high refractive layer.
  • Materials with high refractive indices are materials having refractive indices which are equal or higher than 1.8 at 25°C, whereas materials with low refractive indices exhibit refractive indices which are lower than 1.8 at 25°C.
  • the former are represented by TiO 2 , SnO 2 , Fe 2 O 3 , Fe 3 O 4 and chromium oxides, the latter by SiO 2 , Al 2 O 3 , silicon hydroxide, aluminium hydroxide and magnesium fluoride, to name only a few. With these multilayered pigments striking angle-dependent colour effects may be achieved.
  • the refractive index increment preferably is greater than 0.1.
  • the coating of the security document also comprises at least one sort of laser sensitive pigments.
  • laser sensitive pigments refers to all kind of pigments, which are able to absorb the laser energy and to cause reactions within the coating layers of the substrate.
  • the laser sensitive pigments are able to absorb more laser energy than the effect pigments.
  • laser-sensitive pigments examples include:
  • Said laser sensitive pigments may be present together with the effect pigments in one single layer or in separate layers.
  • at least one kind of laser sensitive pigments and at least one kind of the effect pigments mentioned above are present in one single layer.
  • the weight ratio of the effect pigments to the laser-sensitive pigments is preferably between 4:1 and 1:2.
  • the coating of the document can be achieved in an usual manner.
  • the according inks containing the effect pigments and the laser sensitive pigments are preferably printed on suitable substrates by usual printing or coating techniques like relief printing, gravure printing, flexographic printing, direct offset printing, indirect offset printing, pad printing, intaglio printing, screen printing, paper coating, K-coating, or doctor blade application. Furthermore, application of the ink by means of partial or full-area in-line or off-line lacquering is possible.
  • the concentration of the effect pigments in the ink is preferably between 5 % by weight and 33 % by weight, very preferably between 10 % by weight and 20 % by weight.
  • the concentration of the laser-sensitive pigments in the ink is preferably between 5 % by weight and 33 % by weight, very preferably between 10 % by weight and 20 % by weight.
  • Suitable binders for the inks are:
  • the binder content is preferably 10-50 % by weight, based on the total weight of the liquid system.
  • Suitable solvents and cosolvents for the inks are:
  • the solvent content is preferably 30 % by weight to 70 % by weight, based on the liquid system.
  • a laser is a device that emits light through a specific mechanism for which the term laser is an acronym: light amplification by stimulated emission of radiation.
  • the laser creates a coherent and monochromatic light with a low divergence.
  • a laser consists of a gain medium inside an optical cavity, with a means to supply energy to the gain medium.
  • the gain medium is a material (gas, liquid, solid or free electrons) with appropriate optical properties.
  • a cavity consists of two mirrors arranged such that light bounces back and forth, each time passing through the gain medium.
  • one of the two mirrors, the output coupler is partially transparent. The output laser beam is emitted through this mirror.
  • Light of a specific wavelength that passes through the gain medium is amplified (increases in power); the surrounding mirrors ensure that most of the light makes many passes through the gain medium. Part of the light that is between the mirrors (i.e., is in the cavity) passes through the partially transparent mirror and appears as a beam of light.
  • the process of supplying the energy required for the amplification is called pumping and the energy is typically supplied as an electrical current or as light at a different wavelength.
  • the light source can be a flash lamp or another laser.
  • Most practical lasers contain additional elements that affect properties such as the wavelength of the emitted light and the shape of the beam.
  • the laser used in the present invention preferably has a wavelength within the range of 157 nm to 10.6 ⁇ m, very preferably within the range of 355 nm to 10.6 ⁇ m.
  • Particularly suitable lasers enclose diode lasers (808-980 nm), Nd:YAG lasers und Nd:YVO 4 - lasers (355, 534 und 1064 nm) und CO 2 -lasers (10.6 ⁇ m).
  • the mean laser power is 12 W.
  • the laser is operated in cw mode.
  • the output of the laser is relatively consistent with respect to time.
  • the population inversion required for lasing is continually maintained by a steady pump source.
  • a rate of 500 mm/s is used.
  • the laser power is 90%
  • the laser effect pigments interact with the laser beam.
  • a laser mark is formed in which one colour of the effect pigments with colour shift effect is fixed under laser irradiation and the colour shift effect is no longer observed after the laser treatment.
  • the fixation of one colour of the effect pigment at any place of the substrate, preferably in a surrounding with an unchanged colour shift effect, is a unique feature, which can not be realized by printing techniques.
  • the effect pigments are only removed gradually from the laser mark, if at all.
  • more than 50 % of the original amount of the effect pigments are remaining on the marking after laser treatment, more preferably more than 80%.
  • the actual size of the laser mark is of minor importance in the present invention. It is possible to create both, fine lines and bigger areas, wherein the optical effect might be observed for all sizes of the marking, especially when the surrounding rests optically variable.
  • the authenticity of the document of the present invention can be easily checked by visual inspection from different viewing angles.
  • the laser experiments are carried out with solid state or diode lasers (wavelength range of 355 nm, 532 nm, 980 nm, 1064 nm) and a gas laser, e.g. CO 2 -laser (10.6 ⁇ m), preferably with a Nd:YAG laser und Nd:YVO 4 - laser.
  • a gas laser e.g. CO 2 -laser (10.6 ⁇ m
  • Marked areas for example a rectangle of 5x5 mm
  • a fixed red colour are obtained with the following laser parameter of a Nd:YVO 4 laser (1064 nm, mean power of 12 W) in cw-mode. These parameters are exemplary, but not limited only on this laser system. For evaluation the following ranking was applied. 1: very intensive colour with high brilliance Table 1: Marked areas (rectangle of 5x5 mm) Laser speed v [mm/s] Power P [ %] Evaluation 500 90 1
  • Marking lines with a high contrast and a fixed red colour are obtained with the following laser parameter of a Nd:YVO 4 laser (1064 nm) in cw-mode.
  • Table 2 Marking lines Laser speed v [mm/s] Power P [%] Evaluation 500 90 1

Claims (6)

  1. Verfahren zur Lasermarkierung eines Dokuments, bei dem ein Dokument, das eine Beschichtung umfasst, die wenigstens eine Art eines Effektpigments, das bei verschiedenen Betrachtungswinkeln verschiedene Farben zeigt, und wenigstens eine Art eines laserempfindlichen Pigments enthält, auf wenigstens einem Teil des beschichteten Bereichs mit einem Laserstrahl behandelt wird, der im CW-Betrieb bei einer Geschwindigkeit von 500 mm/s unter Verwendung einer Leistung von 90%, berechnet auf der Grundlage eines Lasers mit einer mittleren Leistung von 12 W, betrieben wird, und eine Laserkennzeichnung mit einer festen Farbe erhalten wird, wobei die feste Farbe eine der verschiedenen Farben ist, die bei verschiedenen Betrachtungswinkeln von dem Effektpigment gezeigt werden.
  2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass die Effektpigmente optisch variable Pigmente umfassen.
  3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass die Effektpigmente ein transparentes oder halbtransparentes, dielektrisches Trägermaterial umfassen, das mit einer Schicht aus wenigstens einem Oxid beschichtet ist, wobei das dielektrische Trägermaterial aus der aus plättchenförmigen Silicaten, Glastafeln, Aluminiumoxidflocken und SiO2-Plättchen bestehenden Gruppe ausgewählt ist und wobei das Oxid aus der aus SiO2, Al2O3, TiO2, SnO2, Fe2O3, Fe3O4, Chromoxiden, Siliciumhydroxid oder Aluminiumhydroxid bestehenden Gruppe ausgewählt ist.
  4. Verfahren nach Anspruch 3, bei dem der dielektrische Träger aus der aus natürlichem oder synthetischem Glimmer, Talk, Kaolin bestehenden Gruppe ausgewählt ist.
  5. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die laserempfindlichen Pigmente Antimon(III)-oxid und/oder Zinnoxid, Zinkoxid, Zinnoxid und/oder Zirkonoxid, Eisenoxide, Kupferhydroxyphosphat, Kupferdiphosphat, Molybdändisulfid, Bismutoxychlorid, Indiumzinnoxid, Sn(Sb)O2 und/oder TiO2 umfassen.
  6. Verfahren nach einem oder mehreren der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass das Gewichtsverhältnis der Effektpigmente zu den laserempfindlichen Pigmenten im Bereich von 4:1 bis 1:2 liegt.
EP08017526A 2008-10-07 2008-10-07 Verfahren zur Laser-Markierung eines Dokuments, das eine fixierte Farbe in einer Umgebung mit einem wechselnden Farbeffekt zeigt Not-in-force EP2174796B1 (de)

Priority Applications (2)

Application Number Priority Date Filing Date Title
ES08017526T ES2390984T3 (es) 2008-10-07 2008-10-07 Procedimiento de marcaje por láser de un documento , mostrando el documento un color fijo en un entorno con un efecto de desplazamiento de color
EP08017526A EP2174796B1 (de) 2008-10-07 2008-10-07 Verfahren zur Laser-Markierung eines Dokuments, das eine fixierte Farbe in einer Umgebung mit einem wechselnden Farbeffekt zeigt

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP08017526A EP2174796B1 (de) 2008-10-07 2008-10-07 Verfahren zur Laser-Markierung eines Dokuments, das eine fixierte Farbe in einer Umgebung mit einem wechselnden Farbeffekt zeigt

Publications (2)

Publication Number Publication Date
EP2174796A1 EP2174796A1 (de) 2010-04-14
EP2174796B1 true EP2174796B1 (de) 2012-07-25

Family

ID=40463803

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08017526A Not-in-force EP2174796B1 (de) 2008-10-07 2008-10-07 Verfahren zur Laser-Markierung eines Dokuments, das eine fixierte Farbe in einer Umgebung mit einem wechselnden Farbeffekt zeigt

Country Status (2)

Country Link
EP (1) EP2174796B1 (de)
ES (1) ES2390984T3 (de)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2943074B1 (fr) * 2009-03-13 2011-05-20 Arjowiggins Security Substrat marquable au laser et procede de fabrication associe
DE102010054853A1 (de) * 2010-12-17 2012-06-21 Giesecke & Devrient Gmbh Sicherheitselement mit Kennzeichnung
FR2976954B1 (fr) * 2011-06-23 2013-07-12 Arjowiggins Security Fil de securite
FR2992255B1 (fr) 2012-06-22 2015-09-04 Arjowiggins Security Element de securite et document securise.
DE102013100635A1 (de) 2013-01-22 2014-07-24 IDnow GmbH Benutzer-Identifikation
WO2015024619A1 (de) * 2013-08-23 2015-02-26 Merck Patent Gmbh Druckbild
ITMI20131476A1 (it) * 2013-09-09 2015-03-10 Attilio Piazza Dispositivo e apparecchiatura per la preparazione ed erogazione di libretti di assegni
ES2633025T3 (es) 2014-05-23 2017-09-18 Merck Patent Gmbh Procedimiento para el tratamiento con láser de recubrimientos
PL3178660T3 (pl) 2015-12-07 2019-07-31 Hueck Folien Ges.M.B.H Personalizowany element zabezpieczający
DE102016004424A1 (de) * 2016-04-12 2017-10-12 Giesecke+Devrient Currency Technology Gmbh Laserung einer Beschichtung mit Effektpigmenten
US10504119B2 (en) 2016-06-23 2019-12-10 Custombike Ag System and method for executing remote electronic authentication
PL238769B1 (pl) * 2016-10-14 2021-10-04 Polska Wytwornia Papierow Wartosciowych Spolka Akcyjna Dokument zabezpieczony z elementem zabezpieczającym, sposób wytwarzania dokumentu zabezpieczonego oraz element zabezpieczający
CN107225889A (zh) * 2017-07-12 2017-10-03 常德金鹏印务有限公司 一种带放射状镭射3d图案的印刷品
US11443559B2 (en) 2019-08-29 2022-09-13 PXL Vision AG Facial liveness detection with a mobile device
CN113173590B (zh) * 2021-05-01 2022-05-24 百色学院 一种基于液态金属制备片状氧化铝的方法

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1091010B (it) 1977-09-09 1985-06-26 Fiat Spa Essicatore ad energia solare
AT386159B (de) 1985-10-11 1988-07-11 Oesterr Nationalbank Verfahren und vorrichtung zur herstellung von echtheits-(codierungs)-merkmalen auf wertpapieren
DE4243987C2 (de) 1992-12-23 2003-10-09 Gao Ges Automation Org Ausweiskarten mit visuell sichtbarem Echtheitsmerkmal
DE19544130A1 (de) 1995-11-27 1997-05-28 Giesecke & Devrient Gmbh Datenträger mit optisch variabler Farbe
NL1003663C1 (nl) 1996-07-23 1998-01-28 Karel Johan Schell Werkwijze ter beveiliging van een papierdun waarde- of identificatiedocument.
DE19704478A1 (de) 1997-02-06 1998-08-13 Merck Patent Gmbh Lasermarkierbare Papiere und Kartonagen
US5977514A (en) * 1997-06-13 1999-11-02 M.A. Hannacolor Controlled color laser marking of plastics
DE19732860A1 (de) 1997-07-30 1999-02-04 Merck Patent Gmbh Lasermarkierbare Papiere und Kartonagen
DE10008851A1 (de) 2000-02-25 2001-08-30 Giesecke & Devrient Gmbh Verfahren zur Herstellung laserbeschriftbarer Datenträger und damit hergestellte Datenträger
DE60216898T3 (de) 2001-03-16 2012-04-26 Datalase Ltd. Laser markierbare zusammensetzungen und verfahren zur erzeugung eines bildes durch laser
DE10247591A1 (de) 2002-10-11 2004-04-22 Giesecke & Devrient Gmbh Wertdokument
DE10232786A1 (de) 2002-07-18 2004-02-12 Giesecke & Devrient Gmbh Papierenes Wertdokument mit Sicherheitsmerkmal
DE10322841A1 (de) * 2003-05-19 2004-12-16 Merck Patent Gmbh Duales Sicherheitsmerkmal
JP2007500090A (ja) 2003-07-30 2007-01-11 データレイズ・リミテッド レーザマーキング可能な組成物
DE102004022080A1 (de) * 2004-05-05 2005-11-24 Giesecke & Devrient Gmbh Wertdokument mit visuell erkennbaren Kennzeichnungen
EP1658992A1 (de) 2004-11-23 2006-05-24 European Central Bank Verfahren zur Erzeugung von Tastsicherheitsmerkmalen auf Sicherheitsdokumente
DE102004057918A1 (de) 2004-11-30 2006-06-01 Merck Patent Gmbh Laserkennzeichnung von Wertdokumenten
DE102005057474A1 (de) * 2005-11-30 2007-05-31 Merck Patent Gmbh Lasertransfer von Sicherheitsmerkmalen
DE102006057507A1 (de) * 2006-12-06 2008-06-12 Merck Patent Gmbh Optisch variables Sicherheitselement

Also Published As

Publication number Publication date
ES2390984T3 (es) 2012-11-20
EP2174796A1 (de) 2010-04-14

Similar Documents

Publication Publication Date Title
EP2174796B1 (de) Verfahren zur Laser-Markierung eines Dokuments, das eine fixierte Farbe in einer Umgebung mit einem wechselnden Farbeffekt zeigt
US20060141391A1 (en) Laser marking of documents of value
US10166810B2 (en) Optically variable magnetic security threads and stripes
KR102433729B1 (ko) 오목 자기력선을 발생하는 자기장 발생 장치에 의해 생성되는 광학 효과층의 현장 경화를 위한 방법
RU2637223C2 (ru) Магнитные или намагничиваемые частицы пигмента и слои с оптическим эффектом
JP4927540B2 (ja) 潜在セキュリティー用途のためのフレーク
EP3079916B1 (de) Optisch variable sicherheitsfäden und -streifen und verfahren zur herstellung derselben
JP2018517587A (ja) 光学効果層を生成するための方法
US20090127845A1 (en) Security element having a digitised mark and security support or document comprising same
US10023000B2 (en) Security threads and stripes
EP3007832B1 (de) Permanentmagnetanordnungen zur erzeugung von konkaven feldlinien und verfahren zur erzeugung einer beschichtung mit optischem effekt damit (invertierte rollenstange)
ZA200101815B (en) Inorganic sheet carrying symbols for making pigments.
EP2174797A1 (de) Laser-markiertes Dokument, das einen wechselnden Farbeffekt zeigt
Bozhkova et al. Overview of security printing types and trends in its future development
KR20220012908A (ko) 보안 잉크 및 기계 판독가능한 보안 특징
JP2004053884A (ja) 真贋判定機能を付与することができる転写箔
EP3055457B1 (de) Optisch variable sicherheitsfäden und -streifen
EP2384888A2 (de) Flexodruckwerk, Flexodruckwerkverfahren und daraus erhältliches Druckerzeugnis

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

AX Request for extension of the european patent

Extension state: AL BA MK RS

17P Request for examination filed

Effective date: 20100512

17Q First examination report despatched

Effective date: 20100614

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

RTI1 Title (correction)

Free format text: METHOD FOR LASER-MARKING A DOCUMENT, THE DOCUMENT SHOWING A FIXED COLOUR IN A SURROUNDING WITH A COLOUR SHIFT EFFECT

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: CH

Ref legal event code: NV

Representative=s name: BUGNION S.A.

Ref country code: AT

Ref legal event code: REF

Ref document number: 567537

Country of ref document: AT

Kind code of ref document: T

Effective date: 20120815

Ref country code: IE

Ref legal event code: FG4D

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602008017352

Country of ref document: DE

Effective date: 20120920

REG Reference to a national code

Ref country code: NL

Ref legal event code: T3

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2390984

Country of ref document: ES

Kind code of ref document: T3

Effective date: 20121120

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG4D

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CY

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: NO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121025

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: BE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: IS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121125

Ref country code: LT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121026

Ref country code: PL

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: PT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121126

Ref country code: SI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: CZ

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: EE

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: RO

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: DK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

REG Reference to a national code

Ref country code: NL

Ref legal event code: V1

Effective date: 20130501

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MC

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

Ref country code: SK

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

Ref country code: IT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20121025

26N No opposition filed

Effective date: 20130426

REG Reference to a national code

Ref country code: IE

Ref legal event code: MM4A

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

Effective date: 20130628

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130501

Ref country code: IE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121007

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20121025

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121025

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 602008017352

Country of ref document: DE

Effective date: 20130501

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602008017352

Country of ref document: DE

Effective date: 20130426

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20130501

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121031

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: MT

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: TR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20120725

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LU

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20121007

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20140602

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: ES

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20101008

Ref country code: HU

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20081007

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 567537

Country of ref document: AT

Kind code of ref document: T

Effective date: 20131007

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20131007