EP3476618A1 - Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst - Google Patents

Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst Download PDF

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Publication number
EP3476618A1
EP3476618A1 EP17306495.7A EP17306495A EP3476618A1 EP 3476618 A1 EP3476618 A1 EP 3476618A1 EP 17306495 A EP17306495 A EP 17306495A EP 3476618 A1 EP3476618 A1 EP 3476618A1
Authority
EP
European Patent Office
Prior art keywords
color
laser
personalized
image
marking
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.)
Withdrawn
Application number
EP17306495.7A
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English (en)
French (fr)
Inventor
Jean-Luc Lesur
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.)
Thales DIS France SA
Original Assignee
Gemalto SA
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 Gemalto SA filed Critical Gemalto SA
Priority to EP17306495.7A priority Critical patent/EP3476618A1/de
Priority to PCT/EP2018/079577 priority patent/WO2019086380A1/fr
Priority to EP18795553.9A priority patent/EP3703955B1/de
Publication of EP3476618A1 publication Critical patent/EP3476618A1/de
Withdrawn legal-status Critical Current

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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
    • 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
    • B42D25/337—Guilloche patterns

Definitions

  • the present invention relates to a method for securing the personalized area of a secure document. It also relates to a secure device comprising such a personalized area.
  • the invention has applications in the field of securing documents, to secure documents to justify the identity of its holder, such as identity cards, driving licenses, passports, etc..
  • security documents such as identity documents
  • identity documents generally include a personalized image of its holder, for example an identity photograph, as well as alphanumeric data such as, for example, the name of the holder. , his date of birth, his address, the document number, the date of issue of the document and / or the identity of the authority issuing the document.
  • This secure document 10 comprises a card body 11 made of a PVC (polyvinyl chloride) or PC (polycarbonate) material or any other material adapted to receive alphanumeric image and data prints.
  • Secure document 10 includes a custom area 12 constructed through several layers of materials stacked between a substrate and a protective layer.
  • the personalized zone 12 includes personal data to the holder of the secured document, such as, for example, a personalized image 13, alphanumeric data 14 and / or so-called identification guilloches.
  • guilloches 15 in color or gray scale, form a network of wavy lines superimposed on the image 13 and visible to the naked eye.
  • the guilloches 15 are intended to make discernable, during an identity check, any Fraudulent modification of the image 13. They make it possible in particular to guard against changes in the color of the image, for example when adding a beard or hair.
  • alphanumeric data protection means mentioned on the identity documents in order to guard against alterations of these data such as, for example, modifications of these alphanumeric mentions.
  • One of the means of protection consists in inserting so-called standard guilloches on all or part of the surface of the document and inserting the personalized image and the alphanumeric data relating to the holder on these guilloches.
  • This protection means makes it possible to detect a falsification of the alphanumeric data because any modification of said data causes a deterioration of the guilloches.
  • this means of protection does not make it possible to detect a counterfeit of the document made with a powerful material.
  • variable guilloches encoding all or part of the alphanumeric data. Examples of document security methods using such variable guilloches are described in particular in patent applications. EP 2 325 022 A1 and US 2010/0260372 filed in the name of the plaintiff.
  • the applicant proposes to insert, above the guilloches and the personalized image of the holder, a laser marking in colors whose colors are directly dependent on the pigments used in the guilloches and the personalized image.
  • color marking or "laser marking” is defined as a set of points resulting from laser impacts, forming lines of variable colors on the personalized area of the secure document.
  • An insertion method is any method of inserting an alphanumeric character, a line, an image, or any other visual pattern or structure within the card body, by an ink printing technique (eg offset ink) or a laser marking technique.
  • an ink printing technique eg offset ink
  • a laser marking technique e.g., a laser marking technique
  • the security method further comprises an insertion of additional security elements, the color marking at least partially crossing said security elements.
  • the color marking comprises a plurality of color laser points, each generated by a specific reaction between the wavelength of one of the laser beams and at least one colored pigment of the guilloche pattern and / or the personalized image and / or security elements.
  • the reaction may be of the chemical, thermal and / or photonic type.
  • the invention relates to a secure document comprising a personalized area made by means of the security method as defined above.
  • the personalized area comprises a personalized image in colors and guilloche patterns in colors overlapping at least partially, said personalized area being partially modified by the laser marking colors.
  • the figure 2 represents a top view of a secure document 100 in which the custom area 120 is secured according to the method of the invention by a color marking.
  • This secure document 100 for example an identity card, comprises a card body 110 and, within this card body, a personalized area 120.
  • the custom area 120 of the secure document 100 is formed through several layers of materials 122-126, stacked on top of one another between a substrate 121 and a protective layer 127. Each layer of material 122-126, just like the substrate 121 , constitutes a surface of the card body capable of receiving an impression.
  • the custom area 120 includes a custom image 122, for example a holder's photograph, printed on a surface of the card body 110, for example the substrate 121 or the transparent layer 123, and personal data relating to said holder.
  • This personal data can be alphanumeric data 140 written on the substrate 121 or in the transparent layer 123, next to the personalized image 122.
  • the personalized zone 120 also comprises guilloche patterns, also called guilloches, inserted above and / or below the custom image 122 so that the custom image and the guilloche are superimposed at least in part.
  • the guilloches may be standard guilloches 126 formed of Offset ink patterns made on the substrate 121 or on a transparent layer, such as the layer 125 of the figure 3 , and covering all or part of the card body.
  • the standard guilloches 126 may be positioned below the custom image 122.
  • the standard guilloches 126 may also be inserted in a transparent layer above the custom image 122, as shown in FIG. figure 3 .
  • the guilloches may also be identification guilloches 124 whose patterns encode personal data relating to the holder to allow identification of the holder.
  • These identification guilloches 124 made for example by means of a laser and / or a specific ink, can be inserted on the substrate 121 or in a transparent layer 123, and extending over or under a part or the the whole of the personalized image 122 and / or in the vicinity of said image, as represented on the figure 3 .
  • the personalized image 122 is generally a color photograph, printed or reproduced in the card body. This image therefore comprises a plurality of colors obtained by means of chemical or natural substances called pigments.
  • the guilloche patterns are color patterns containing pigments.
  • a guilloche pattern may contain a single pigment or several pigments, particularly when it comes to guilloche patterns with color change (called "rainbow" in English terms).
  • the secure document comprises, according to the invention, a laser marking 160, in color, covering at least in part, at least, the personalized image 122 and the guilloche patterns 124, 126.
  • This laser marking 160 may also cover other security elements 130 inserted in the custom area 120, as shown in the figure 6 .
  • a protective layer 127 covers all of the layers and prints 122-126 and 130 so that the custom area 120 is sandwiched between the substrate 121 and said protective layer 127.
  • the laser marking 160 is made in a transparent layer covering the personalized zone 120.
  • the laser marking 160 is made in the thickness of the various layers and printing 121-126, before the protective layer is deposited on the card body 110.
  • the laser marking 160 is made in the thickness of the various layers and printing 121-126, through the protective layer deposited on the card body 110.
  • the method of the invention therefore proposes to carry out a laser marking 160 on all the layers and prints of the personalized zone 120.
  • This laser marking 160 is made during an operation which takes place after the insertion operations of the personalized image 122 and standard guilloche patterns 126 and identification 124 and the deposition operations of the transparent layers 123, 125.
  • This laser marking operation is performed through the various layers and prints forming the custom area 120 of the card body 110.
  • This laser marking 160 is produced by means of lasers emitting pulses directed towards the personalized zone, at predetermined wavelengths. Each impulse generates, on the personalized zone, an impact point crossing the different layers of said personalized zone.
  • at least two laser beams having different wavelengths are used, each wavelength generating a different chemical reaction with the pigments of the personalized image and the pigments of the guilloche patterns.
  • one laser may emit beams in the infrared, while the other emits beams in a visible color or in the ultraviolet.
  • more than two different wavelengths are used, providing a greater variety of possible marking colors.
  • four laser beams can be used for marking: a first laser beam emits at a wavelength of infrared (around 1064nm), a second laser beam emits at the wavelength of the red color ( around 650nm), a third laser beam emits at the wavelength of the blue color (around 450nm) and a fourth laser beam emits at the wavelength of the green color (around 532nm).
  • these wavelengths are only examples and that other wavelengths of the visible or the invisible can be chosen as long as said wavelengths make it possible to generate colors obtained. by chemical reaction with the pigments of the personalized image and the guilloches.
  • a laser marking according to the invention comprises a plurality of laser points each corresponding to an impact of a laser beam on one or more layers of the card body 110.
  • the laser points more or less thick depending on the dimensions of the laser beam and the chemical reaction with the pigments, can be arranged in the form of a straight line or a curved line.
  • a laser marking 160 thus comprises one or more curved or rectilinear lines, continuous or discontinuous, referenced 160a, 160b, 160c, 160d and 160e on the figure 4 , of a single color or of several colors varying from one laser point to another, in a progressive manner or not, as explained in more detail later.
  • the laser marking 160 preferably extends in a direction transverse to the direction of the identification guilloches 124 and / or the standard guilloches 126. Thus, each line of the laser marking 160 overlaps several guilloches, which makes it possible to generate several laser points. of different colors.
  • each laser dot of the marking varies according to the wavelength of the laser beam impacting the card body 110, the possible security elements 130 and the pigments of the guilloches 124 and 126 and the personalized image 122, to the location of the impact.
  • the chemical reaction that occurs between a color pigment and a laser wavelength generates a color other than that of the original pigment if the wavelength of the laser has been chosen appropriately.
  • Different colors can therefore be generated by the reaction between the different pigments of the personalized image and the guilloches and a specific laser wavelength. The higher the number of wavelengths of the laser beams, the more the colors generated are diversified.
  • the reactions associated with the other security elements 130 such as the Dovid or Kinégrame 130c, the UV ink 130b, the iridescent ink 130a and the embossed guilloches 130d, to mention only those represented on the screen. figure 6 , are specific to the wavelengths of the lasers considered in this application.
  • each laser dot of the marking may vary according to the wavelength of the laser beam impacting the card body, the energy of the laser pulses, their duration, but also the pigments of the laser. guilloche, personalized image, various security elements at the location of the impact.
  • the figure 4 represents an example of five laser marking lines 160a-160e traversing transversally five identification guards 126a-126e of different colors, respectively violet, red, blue, green and yellow, stretching on the same personalized image color 122.
  • the marking line 160a is obtained with an infrared laser beam at a wavelength of about 1064 nm; the marking line 160b is obtained with a red laser beam at a wavelength of about 650 nm; the marking line 160c is obtained with a green laser beam at a wavelength of about 532 nm; the marking line 160d is obtained with a blue laser beam at a wavelength of about 450 nm; and the marking line 160e is obtained with this same laser beam at higher power (energy).
  • the color of the impact points 160a of the infrared laser beam with the image 122 and / or the guilloches is black.
  • the color of the points of impact of the red, green, blue laser beams at low and high power on the image 122 and on the guilloche 126 (which are of variable color in this example) changes depending in particular on the initial color.
  • an impact on the plastic material of the card body (polycarbonate, PVC or other) generates a black or gray point if no colored pigment or other security element 130 is encountered during the impact.
  • the laser impact on the materials of the personalized zone generates a thermal effect (carbonization process) which burns the material and generates a black or gray point.
  • a black or gray dot may also be the result of a chemical reaction when a laser beam is applied with too much power. Black impact points can therefore be the result of a chemical reaction between the wavelength and the pigments or the result of a carbonization.
  • the figure 5 is another example of laser marking in which the marking lines 160 are secondary guilloche patterns.
  • the secondary guilloche patterns referenced 260a-260d are made by laser pulses on the layer of material used to generate the personalized image 122 and the guilloches 124, 126.
  • These secondary guilloche patterns 260a-260d can encode data - for example holder data - or simply lines with sinusoidal curvatures.
  • the guilloche pattern 260a may be, for example, a marking line at least partly yellow, obtained from a laser beam of green wavelength on a portion of the image having red tones.
  • the secondary guilloche patterns 260b and 260d may be, for example, totally or partially light blue and red.
  • the secondary guilloche patterns 260c may be, for example, wholly or partially black, with a thickness depending on the color density level of the area of the custom image.
  • the cyan color will become white under the effect of a laser impact of red color, or black under the effect of an infrared color laser impact; it will remain cyan under the effect of a green or blue laser impact.
  • the green color of the image will become black under the effect of an infrared laser impact, yellow under the effect of a laser impact of red and cyan color under the effect of a laser impact of color blue ; it will remain green under the effect of a green laser impact.
  • the color, and the thickness, of the laser markings varies according to the colored pigments present in the guilloches and the personalized image. These pigments vary according to the insertion color but also the printing technique. Indeed, each printing technique has specific pigments, in size and in color. An image and guilloches inserted with an inkjet printing technique have different pigments than those inserted with a dye sublimation printing technique (known as D2T2) or an offset printing technique or laser printing. Indeed, each printing technique has colors and pigments of its own. The chemical reaction caused by a laser beam on a pigment from a printing technique will therefore generate a color and / or thickness different from that generated by the same laser beam on a pigment from another printing technique.
  • the color and / or the thickness obtained by the reaction of the laser impact on a pigment varying according to the pigment and the wavelength of the laser beam the person skilled in the art will understand that a plurality of colors can be generated, especially when the laser impact reacts with both the identification guilloche pigment 124 and / or standard guilloches 126 and / or the other security elements 130 and / or with the custom image pigment 122.
  • the plurality of laser impacts form a laser marking which can extend over all or part of the personalized area of the document.
  • the marking lines follow a path that overlaps the custom image 122 and a contiguous area 128 to said image, thereby forming a continuous pattern, of varying colors, which connects the personalized image and its environment. that is, the contiguous zone.
  • the variation of the colors of the laser marking makes it possible to determine, during a control, if the guilloches and the personalized image are indeed the elements of origin of the secured document. Indeed, as the colors differ according to the printing technique, it is possible to check if the guilloches and the personalized image have been inserted with the initial insertion techniques. Counterfeiting or falsification with another insertion technique would be easily detected. For example, if the security method provides for inserting the custom image with laser printing and the guilloches with offset printing, then the colors generated by the laser impacts will be known. Any falsification or counterfeiting will cause a change of colors, so that the falsification or counterfeiting can be detected with the naked eye. In addition, in embodiments where the marking lines overlap the custom image and the contiguous area, any cut in one or more of these lines means that there has been an attempt to falsify the custom area.
  • the method of securing a personalized area of a document according to the invention comprises various variants, modifications and improvements which will appear in a manner obvious to the user. those skilled in the art, it being understood that these variants, modifications and improvements fall within the scope of the invention, as defined by the following claims.
EP17306495.7A 2017-10-31 2017-10-31 Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst Withdrawn EP3476618A1 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
EP17306495.7A EP3476618A1 (de) 2017-10-31 2017-10-31 Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst
PCT/EP2018/079577 WO2019086380A1 (fr) 2017-10-31 2018-10-29 Procédé de sécurisation de la zone personnalisée d'un document securisé et dispositif sécurisé comportant une telle zone personnalisée
EP18795553.9A EP3703955B1 (de) 2017-10-31 2018-10-29 Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP17306495.7A EP3476618A1 (de) 2017-10-31 2017-10-31 Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst

Publications (1)

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EP3476618A1 true EP3476618A1 (de) 2019-05-01

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EP17306495.7A Withdrawn EP3476618A1 (de) 2017-10-31 2017-10-31 Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst
EP18795553.9A Active EP3703955B1 (de) 2017-10-31 2018-10-29 Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst

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EP18795553.9A Active EP3703955B1 (de) 2017-10-31 2018-10-29 Sicherungsverfahren der personalisierten zone eines gesicherten dokuments, und gesicherte vorrichtung, die eine solche personalisierte zone umfasst

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WO (1) WO2019086380A1 (de)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10154051A1 (de) * 2000-11-04 2002-06-20 Kurz Leonhard Fa Mehrschichtenbild in einem mindestens zwei Schichten aufweisenden Schichtenaufbau einer Beschichtung oder einer Folie sowie Verfahren zur Herstellung eines solchen Mehrschichtenbildes
WO2008141632A2 (de) * 2007-05-23 2008-11-27 Loessl Fariborz Martin Zahedi Folienelement zur echtheitserkennung
EP2236308A1 (de) * 2009-03-31 2010-10-06 Gemalto SA Ausweisdokument mit einem durchsichtigen Teil mit zur Fälschungssicherung dienenden Blasen und ein Verfahren zu dessen Herstellung
US20100260372A1 (en) 2007-12-13 2010-10-14 Gemalto Sa Method and apparatus to mark a document using a combination between guilloches and watermarking, method and apparatus to read previous combination
EP2325022A1 (de) 2009-11-12 2011-05-25 Gemalto SA Identitätsdokumente, die eine mit Hilfe von Motiven gesicherte Identitätsfotografie umfassen

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2891765B1 (fr) * 2005-10-07 2008-01-18 Gemplus Sa Procede de creation d'une image sur un support

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10154051A1 (de) * 2000-11-04 2002-06-20 Kurz Leonhard Fa Mehrschichtenbild in einem mindestens zwei Schichten aufweisenden Schichtenaufbau einer Beschichtung oder einer Folie sowie Verfahren zur Herstellung eines solchen Mehrschichtenbildes
WO2008141632A2 (de) * 2007-05-23 2008-11-27 Loessl Fariborz Martin Zahedi Folienelement zur echtheitserkennung
US20100260372A1 (en) 2007-12-13 2010-10-14 Gemalto Sa Method and apparatus to mark a document using a combination between guilloches and watermarking, method and apparatus to read previous combination
EP2236308A1 (de) * 2009-03-31 2010-10-06 Gemalto SA Ausweisdokument mit einem durchsichtigen Teil mit zur Fälschungssicherung dienenden Blasen und ein Verfahren zu dessen Herstellung
EP2325022A1 (de) 2009-11-12 2011-05-25 Gemalto SA Identitätsdokumente, die eine mit Hilfe von Motiven gesicherte Identitätsfotografie umfassen

Also Published As

Publication number Publication date
EP3703955A1 (de) 2020-09-09
WO2019086380A1 (fr) 2019-05-09
EP3703955B1 (de) 2022-11-30

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