EP1291195B1 - Control element for printed matter - Google Patents

Control element for printed matter Download PDF

Info

Publication number
EP1291195B1
EP1291195B1 EP02405732A EP02405732A EP1291195B1 EP 1291195 B1 EP1291195 B1 EP 1291195B1 EP 02405732 A EP02405732 A EP 02405732A EP 02405732 A EP02405732 A EP 02405732A EP 1291195 B1 EP1291195 B1 EP 1291195B1
Authority
EP
European Patent Office
Prior art keywords
control element
lines
geometrical shapes
offset
sectors
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.)
Expired - Lifetime
Application number
EP02405732A
Other languages
German (de)
French (fr)
Other versions
EP1291195A1 (en
Inventor
Laurent Mathys
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.)
KBA Notasys SA
Original Assignee
KBA Giori 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 KBA Giori SA filed Critical KBA Giori SA
Priority to EP07011414A priority Critical patent/EP1847400B1/en
Publication of EP1291195A1 publication Critical patent/EP1291195A1/en
Application granted granted Critical
Publication of EP1291195B1 publication Critical patent/EP1291195B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/914—Transfer or decalcomania
    • Y10S428/915—Fraud or tamper detecting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00—Stock material or miscellaneous articles
    • Y10S428/916—Fraud or tamper detecting
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/24—Structurally defined web or sheet [e.g., overall dimension, etc.]
    • Y10T428/24802—Discontinuous or differential coating, impregnation or bond [e.g., artwork, printing, retouched photograph, etc.]

Definitions

  • the present invention relates to a control element for printed object, in particular for securities or equivalent, comprising a first drawing printed on a first face of said object comprising at least a first frame.
  • control elements are known in the state of the art and mainly used to prevent the counterfeiting of securities, in particular the copying of banknotes.
  • control elements commonly called security elements
  • security elements in the papers.
  • a first technique is that called the latent color image.
  • the idea according to this technique is to print a particular image on the paper-value so that this image is invisible to the naked eye. To do this, we can play on color assemblies and contrasts. When the value paper carrying this latent color image is photocopied or scanned, the latent color image becomes visible to the naked eye so that it is very easy to detect a counterfeit.
  • the publication EP 0 882 599 describes this principle of the latent color image.
  • a fiduciary document having a printed graphic and two superimposed security signs, each being in the form of a watermarked network, the first of which is in the form of a periodic network and the second results from a division of the printed graphics into parallel strips arranged and encoded according to a binary coding, symmetrically with respect to an axis of symmetry of the document, the wave of the watermarked network extending in a common direction not -perpendicular to the direction of the cutting bands of the printed graphics and the superposition of these two signs having the effect of affecting the individual reading of said signs.
  • the publication EP 0 710 574 describes a generation method and a security drawing composed of multiple lines.
  • the spacing between the lines is modulated and at the same time the width of said lines is modified while maintaining a constant ratio between the width of the lines and the spacing between the lines so that the visual appearance (with the naked eye) does not seem altered.
  • This technique is advantageous insofar as one can parameterize the distribution of the lines according to the photocopiers and scanners against which one wishes to protect itself.
  • the object of the present invention is to improve the known control elements so as to make counterfeiting more difficult.
  • the object of the invention is to provide a control element which is relatively simple to produce and by means of which the control of the printed object is easy to perform.
  • control element according to the invention is defined by the features set forth in independent claim 1.
  • the dependent claims 8 and 9 respectively define a value paper and a sheet comprising at least one control element according to the invention.
  • a drawing according to the invention is particularly useful in the field of two-sided printing, when the register between the front and back printing is very important.
  • An important advantage of the element according to the present invention is that it can be used either to prevent counterfeiting, or to control the quality of printing, during the printing of the printed object in particular the register double-sided impressions.
  • Figure 10 shows another embodiment of a drawing according to the invention.
  • FIG. 11 schematically shows a sheet comprising printed objects, for example banknotes, each bank note comprising a control drawing according to the invention and the sheet itself also comprising a control drawing according to the invention.
  • FIG. 1A an initial background 1 is shown and this background comprises a set of parallel lines 2 and is printed on both sides of the printed object in register, that is to say that the lines 2 are exactly opposite each other. others.
  • this background comprises a set of parallel lines 2 and is printed on both sides of the printed object in register, that is to say that the lines 2 are exactly opposite each other. others.
  • at least one of the sides of the printed object is modified to print the shape of lines 2 by moving sectors of said lines. This modification is represented in FIG. 1B, in which the lines that are not modified remain referenced with the number 2, and the modified lines are referenced 3 to 11 in succession.
  • the line referenced by the number 3 comprises several successive sectors referenced 3a to 3g which are shifted in the manner shown in Figure 1B.
  • lines 4 to 11 also include successive sectors suitably offset.
  • this background can be printed on the front or back side of the printed object.
  • FIG. 1C there is shown a bottom 1 which is identical to the initial bottom of FIG. 1A. This bottom 1 is intended to be printed on the other side of the printed object relative to the modified bottom of Figure 1B, but in perfect register with said modified bottom. The result of this perfect register is that the lines or parts of straight lines are confused when one looks at the object printed in transparency, while the successive sectors shifted 3a to 3g and those of lines 4 to 11 become visible in transparency between said lines which merge.
  • this mode is not limited to an upward shift as indicated above, but it can also be used a downward shift, or, if the bottom lines are rotated 90 °, to the right or again to the left for the front or back.
  • the lines of the front recto have been modified as well as those of the back end.
  • the line 21 comprises the successive sectors 21a to 21g and the other lines 22 to 29 also each comprise staggered sectors as represented in this FIG. 2B.
  • the lines of the bottom of the other side of the printed object have also been modified, as shown in FIG. 2C, which would be the back side if FIG. 2B is the front side.
  • the modification of the line sectors is reversed between the front side and the back side. Assuming that FIG. 2B represents the front side, the sectors of lines (for example 21a to 21g) are shifted upwards in the figure, whereas in FIG. 2C, which would be the backside according to the initial hypothesis, the line sectors (for example 31a to 31g) are shifted downwards in FIG. 2C.
  • FIG. 2D The result in transparency of the superposition of FIGS. 2B and 2C is shown diagrammatically in FIG. 2D: again, if the register is correct, a predetermined sign is formed which depends on the offsets made to the lines, in this example the letter "K", by superimposing lines and sectors of offset lines.
  • the superposition of the lines referenced 2 in FIGS. 2B and 2C gives the lines 2 of the FIG. 2D, and, for example, the superposition of line 21 with sectors 21a to 21g of FIG. 2B with line 30 and sectors 30a to 30g of FIG. 2C results in line 39 and the widened sectors 39a and 39b. of Figure 2D, when the register is correct.
  • the superposition of the lines 22 to 29 of FIG. 2B with the lines 31 to 38 of FIG. 2C results, in transparency, in the lines 40 to 47 of FIG. 2D, when the register is correct with the enlarged sectors shown in Figure.
  • the offsets can be smaller than when a single background is modified since the two-sided offsets add up: it is sufficient to compare Figures 1B and 2B to perceive this fact. It follows that if the offsets on each bottom are smaller, they are all the more difficult to perceive with the naked eye, or reproduce by photocopy or by means of a scanner considering a single front or back bottom , but the effect in transparency is not diminished since the offsets add up in transparency and remain just as visible.
  • this variant is not limited to a shift downwards or upwards as indicated above, but it is also possible to use a shift to the right or to the left for the front and / or back if the bottom lines are rotated 90 ° with respect to FIGS. 2A to 2D.
  • FIGS. 3A to 3D A second variant of the first embodiment is described with reference to FIGS. 3A to 3D.
  • This variant is similar to that shown in FIGS. 2A to 2D with respect to the line sectors that are shifted (see FIGS. 3B and 3C).
  • the main difference is in double-sided superimposed printing.
  • it was sought to exactly superimpose the lines of the front and bottom backs to bring out the sectors of offset lines (21a to 21g or 30a to 30g) between said lines.
  • FIGS. 3A to 3D on the other hand, in the case of double-sided printing, it will be sought to print lines not on each other but by shifting them relative to each other alternately so that each line the front is between two lines on the back side.
  • an offset is in order to create empty spaces corresponding to the offset of the line sectors, so that the control element is formed by the absence of printing rather than the presence of offset sectors.
  • the back side will comprise line 57 which will be placed between said lines 2 and 48 of the front, and so on for successive lines 49 to 2 of Figure 3B between which successively will be printed on the other side the lines 58 to 66 of Figure 3C.
  • the result in transparency is then represented in FIG.
  • FIGS. 4A to 4D represent a more general view of the control drawing according to the invention by way of example and makes it possible to better judge the visual effect created by a drawing according to the invention.
  • the embodiment shown in FIGS. 2A to 2D has been used in which the front and back sides comprise offset line sectors.
  • the initial bottom 1 of FIG. 4A comprises a set of lines 2 parallel to one another.
  • the first four lines (referenced 2) from the top are not modified, and then starting from the fifth line, sectors of the successive lines (references 21 ', 22', etc.) are started off as shown. in Figure 2B.
  • FIG. 4B the first four lines (referenced 2) from the top are not modified, and then starting from the fifth line, sectors of the successive lines (references 21 ', 22', etc.) are started off as shown. in Figure 2B.
  • FIG. 1 the first four lines (referenced 2) from the top are not modified, and then starting from the fifth line, sectors of the successive lines (references 21
  • FIG. 4C the first four lines 2 are not modified, whereas starting from the fifth line (referenced 31 ') there are sectors shifted in a manner comparable to that represented in FIG. 2C.
  • the lines of FIGS. 4B and 4C are thus printed in register on the front side and the back side respectively of the object and if the recto-verso register is correct, FIG. 4D is thus obtained in transparency, which corresponds to FIG. 2D .
  • FIGS. 5D to 5D A second embodiment of the invention is now described with reference to FIGS. 5D to 5D.
  • the bottom 67 consists of concentric circles as shown in FIG.
  • these offsets will form a predetermined image that will become visible in transparency, as shown schematically in Figure 5D.
  • the sign is the letter "K”.
  • FIGS. 6A to 6D show a third embodiment in which the bottom 70 is formed by wavy lines.
  • line sectors are shifted appropriately to form a predetermined sign or image. It is possible to shift line sectors either on one of the two sides of the print (as in the embodiment of FIGS. 1B and 1C), or on both sides (as in the embodiment of FIGS. 2C) to create the desired image in transparency.
  • the front side background (FIG. 6B) has been modified in the area 71 and back (FIG. 6C) in the area 72 and the transparent superposition, when the register is correct, has the result Figure 6D, in which the letter "K" appears in transparency.
  • Figures 7A-7D show a fourth embodiment in which is combined with clearly visible changes of the bottom lines and offsets according to the principle of the invention.
  • this mode for example, we start from an initial background 73 of inclined parallel lines as shown in Figure 7A.
  • One of the advantages of this embodiment is that as images, numbers or letters are formed in a clearly visible manner on the background, whether on the front back 74, the bottom back 76 or the two at a time, the alterations of the lines intended to form the security design are even more difficult to perceive if we consider one of the funds 74 or 76 alone and not transparently. On the other hand, in transparency, the effect according to the invention is conserved and the control is quite possible, as shown in FIG. 7D.
  • FIGS. 8A to 8D Another embodiment using the principle of the invention is shown in FIGS. 8A to 8D.
  • this mode not use lines to form the bottom but it is composed of a frame (bottom 77 of Figure 8A).
  • the frame is deformed in a predetermined manner to form a given sign.
  • the front-side frame 78 (FIG. 8B) is deformed in the zones 79 and 80 and the back-side frame 81 (FIG. 8C) in the zones 82 and 83.
  • the sign which has been formed according to this principle is shown diagrammatically in FIG. 8D by the letters "OK".
  • FIGS. 9A to 9E Another embodiment of the invention is described with reference to FIGS. 9A to 9E.
  • the drawing according to the invention is used to adjust the printing cylinders during the commissioning of a two-sided printing machine.
  • the principle of the invention allowed to control a double-sided register on a printed object, we could use this principle both to detect counterfeits made by means of photocopied objects or scanned and to adjust the double-sided register of a printing machine by creating a particular sign for this purpose.
  • the control sign described comprises two arrows of opposite direction.
  • the initial background of the front side 85 is composed of successive parallel lines 86 as shown in FIG. 9A.
  • the initial backside 87 is composed of parallel successive lines 88 as shown in FIG. 9B.
  • Each line 88 further comprises segments 88a to 88f which are shifted as shown in FIG. 9B.
  • the important thing for lines 88 of FIG. 9B is that their height (for example the length of segments 88b and 88d) is equal to the width of lines 86 of FIG. 9A. This is shown in FIGS. 9A and 9B as part 89 surrounded by dashed lines. This equal height is important and allows to use the principle of the invention to adjust the register recto-verso printing.
  • control pattern thus makes it very easy to control the recto-verso print register, the fineness of the adjustment being related to the thickness of the lines 86 and offsets 88a to 88g.
  • this control means can be used both for the adjustment of the longitudinal offset and for the lateral adjustment. It suffices to combine a drawing according to Figures 9A and 9B with an identical drawing but in which the lines are oriented perpendicular to those of Figures 9A and 9B.
  • FIG. 10 shows yet another embodiment of a drawing according to the invention.
  • each line is cut into segments of S 1 to S n .
  • a segment S n is characterized by its line width l n and by the distances d n1 and d n2 that there is between this segment and the corresponding segment of the preceding line and the following line.
  • the length of the segments may vary along the lines, and in particular shorter segments are advantageous in areas of high change and give better masking.
  • FIG 11 schematically illustrates how drawings using the principle of the invention can be combined on one and the same sheet bearing prints, e.g. paper-value impressions.
  • This sheet F has a number of prints 91 arrayed in rows and columns next to one another.
  • Each of these prints 91 comprises at least one control element 92 using the principle described with reference to FIGS. 1A to 8D.
  • the element 92 is used as a security element preventing subsequent falsification of the prints, for example by photocopying or scanning.
  • two elements are used 93 and 94 according to the embodiment of the invention described with reference to Figures 9A to 9E to adjust the two-sided printing register.
  • These control elements 93 and 94 are, for example, on the edges of the sheet F and aligned along two perpendicular axes which allows an adjustment of the recto-verso printing register in the two perpendicular directions of the manner outlined above.
  • control element according to the invention can be used not only to prevent counterfeiting but also to control the quality of printing.
  • a control element according to the invention can be used not only to prevent counterfeiting but also to control the quality of printing.
  • a control element according to the invention can be used not only to prevent counterfeiting but also to control the quality of printing.
  • Simple and known means would indeed make it possible to see if the control sign appears. For example by illuminating the notes from their back side, a camera placed on the front side can perfectly identify the presence or absence of the control sign.
  • the printing medium can be varied: it is possible to use paper or other supports such as, for example, plastic supports, made of polymer, polyester or the like.
  • a preliminary preparation of the printing medium in the printing zone comprising the control element according to the invention for example by a varnish or a watermark effect.

Landscapes

  • Business, Economics & Management (AREA)
  • Accounting & Taxation (AREA)
  • Finance (AREA)
  • Printing Methods (AREA)
  • Credit Cards Or The Like (AREA)
  • Inspection Of Paper Currency And Valuable Securities (AREA)

Description

La présente invention concerne un élément de contrôle pour objet imprimé, en particulier pour des papiers-valeurs ou équivalents, comportant un premier dessin imprimé sur une première face dudit objet comprenant au moins une première trame.The present invention relates to a control element for printed object, in particular for securities or equivalent, comprising a first drawing printed on a first face of said object comprising at least a first frame.

De tels éléments de contrôle sont connus dans l'état de la technique et principalement utilisés pour empêcher la contrefaçon des papiers-valeurs, en particulier la copie de billets de banque. Afin de rendre cette contrefaçon, soit par photocopie soit par l'utilisation d'un scanner couplé à une imprimante couleur, difficile voire même impossible, on s'est mis à intégrer des éléments de contrôle, couramment appelés éléments de sécurité, dans les papiers-valeurs imprimés en plus des moyens particuliers déjà employés, comme par exemple des filigranes dans le papier.Such control elements are known in the state of the art and mainly used to prevent the counterfeiting of securities, in particular the copying of banknotes. In order to make this counterfeiting, either by photocopy or by the use of a scanner coupled to a color printer, difficult or even impossible, we began to integrate control elements, commonly called security elements, in the papers. -values printed in addition to the particular means already used, such as watermarks in the paper.

En effet, les progrès techniques portant sur les photocopieurs et les scanners sont tels que du matériel très performant est maintenant accessible facilement à toute personne. De ce fait, les éléments de sécurité ont dû eux aussi être multipliés et perfectionnés en conséquence.Indeed, the technical progress of photocopiers and scanners is such that high-performance equipment is now easily accessible to anyone. As a result, security features have also had to be expanded and refined accordingly.

Différentes techniques ont été développées pour réaliser des éléments de sécurité pour papiers-valeurs. A titre d'exemple, une première technique est celle dite de l'image en couleur latente. L'idée selon cette technique est d'imprimer une image particulière sur le papier-valeur de telle sorte que cette image est invisible à l'oeil nu. Pour ce faire, on peut jouer sur les assemblages de couleur et les contrastes. Lorsque le papier-valeur portant cette image en couleur latente est photocopié ou scanné, l'image en couleur latente devient visible à l'oeil nu de sorte qu'il est très facile de détecter une contrefaçon. A titre d'exemple, la publication EP 0 882 599 , décrit ce principe de l'image en couleur latente.Various techniques have been developed for making security elements for securities. For example, a first technique is that called the latent color image. The idea according to this technique is to print a particular image on the paper-value so that this image is invisible to the naked eye. To do this, we can play on color assemblies and contrasts. When the value paper carrying this latent color image is photocopied or scanned, the latent color image becomes visible to the naked eye so that it is very easy to detect a counterfeit. For example, the publication EP 0 882 599 , describes this principle of the latent color image.

Dans la demande de brevet européen EP 0 509 916 , un document fiduciaire est décrit ledit document présentant un graphisme imprimé et deux signes de sécurité superposés, chacun étant réalisé sous la forme d'un réseau filigrané, dont le premier a la forme d'un réseau filigrané périodique et le second résulte d'un découpage du graphisme imprimé en bandes parallèles disposées et codées selon un codage binaire, symétriquement par rapport à un axe de symétrie du document, l'onde du réseau filigrané s'étendant dans un direction commune non-perpendiculaire à la direction des bandes de découpage du graphisme imprimé et la superposition de ces deux signes ayant pour effet d'affecter la lecture individuelle desdits signes.In the request for European patent EP 0 509 916 , a fiduciary document is described said document having a printed graphic and two superimposed security signs, each being in the form of a watermarked network, the first of which is in the form of a periodic network and the second results from a division of the printed graphics into parallel strips arranged and encoded according to a binary coding, symmetrically with respect to an axis of symmetry of the document, the wave of the watermarked network extending in a common direction not -perpendicular to the direction of the cutting bands of the printed graphics and the superposition of these two signs having the effect of affecting the individual reading of said signs.

Finalement, la publication EP 0 710 574 , décrit une méthode de génération et un dessin de sécurité composé de lignes multiples. Selon le principe exposé dans cette demande de brevet, on module l'espacement entre les lignes et en même temps on modifie la largeur desdites lignes tout en conservant un rapport constant entre la largeur des lignes et l'espacement entre les lignes de sorte que l'aspect visuel (à l'oeil nu) ne semble pas altéré. Cette technique est avantageuse dans la mesure où l'on peut paramétrer la distribution des lignes en fonction des photocopieurs et scanners contre lesquels on désire se protéger.Finally, the publication EP 0 710 574 , describes a generation method and a security drawing composed of multiple lines. According to the principle set forth in this patent application, the spacing between the lines is modulated and at the same time the width of said lines is modified while maintaining a constant ratio between the width of the lines and the spacing between the lines so that the visual appearance (with the naked eye) does not seem altered. This technique is advantageous insofar as one can parameterize the distribution of the lines according to the photocopiers and scanners against which one wishes to protect itself.

Le but de la présente invention est d'améliorer les éléments de contrôle connus de manière à rendre la contrefaçon plus difficile.The object of the present invention is to improve the known control elements so as to make counterfeiting more difficult.

Plus particulièrement, le but de l'invention est de proposer un élément de contrôle qui soit relativement simple à réaliser et au moyen duquel le contrôle de l'objet imprimé est facile à effectuer.More particularly, the object of the invention is to provide a control element which is relatively simple to produce and by means of which the control of the printed object is easy to perform.

L'élément de contrôle selon l'invention est défini par les caractéristiques énoncées dans la revendication indépendante 1.The control element according to the invention is defined by the features set forth in independent claim 1.

Les revendications dépendantes 2 à 7 définissent des modes d'exécution particuliers de l'invention.Dependent claims 2 to 7 define particular embodiments of the invention.

Les revendications dépendantes 8 et 9 définissent respectivement un papier-valeur et une feuille comportant au moins un élément de contrôle selon l'invention.The dependent claims 8 and 9 respectively define a value paper and a sheet comprising at least one control element according to the invention.

Un dessin selon l'invention est particulièrement utile dans le domaine de l'impression recto-verso, lorsque le registre entre l'impression recto et l'impression verso est très important.A drawing according to the invention is particularly useful in the field of two-sided printing, when the register between the front and back printing is very important.

Un avantage important de l'élément selon la présente invention est qu'il peut être utilisé soit pour empêcher la contrefaçon, ou bien pour contrôler la qualité de l'impression, au cours de l'impression de l'objet imprimé en particulier le registre recto-verso des impressions.An important advantage of the element according to the present invention is that it can be used either to prevent counterfeiting, or to control the quality of printing, during the printing of the printed object in particular the register double-sided impressions.

L'invention sera mieux comprise par la description de plusieurs modes d'exécution différents de celle-ci et des figures qui s'y rapportent dans lesquelles:

  • Les figures 1A à 1D montrent un premier mode d'exécution d'une partie d'un dessin selon l'invention, en agrandissement,
  • Les figures 2A à 2D montrent une première variante du premier mode d'exécution des figures 1A à 1D,
  • Les figures 3A à 3D montrent une deuxième variante du premier mode d'exécution des figures 1A à 1D,
  • Les figures 4A à 4D montrent une vue plus générale du mode d'exécution des figures 2A à 2D,
  • Les figures 5A à 5D montrent un deuxième mode d'exécution d'un dessin selon l'invention avec des lignes concentriques,
  • Les figures 6A à 6D montrent un troisième mode d'exécution d'un dessin selon l'invention avec des lignes ondulées,
  • Les figures 7A à 7D montrent un quatrième mode d'exécution d'un dessin selon l'invention avec des lignes inclinées combinées à un effet de relief,
  • Les figures 8A à 8D montrent un cinquième mode d'exécution d'un dessin selon l'invention avec une trame,
  • Les figures 9A à 9E montrent un sixième mode d'exécution d'un dessin selon l'invention pouvant être utilisé pour ajuster le registre d'impression recto-verso.
The invention will be better understood by the description of several different embodiments thereof and the figures relating thereto in which:
  • FIGS. 1A to 1D show a first embodiment of part of a drawing according to the invention, in enlargement,
  • FIGS. 2A to 2D show a first variant of the first embodiment of FIGS. 1A to 1D,
  • FIGS. 3A to 3D show a second variant of the first embodiment of FIGS. 1A to 1D,
  • FIGS. 4A to 4D show a more general view of the embodiment of FIGS. 2A to 2D,
  • FIGS. 5A to 5D show a second embodiment of a drawing according to the invention with concentric lines,
  • FIGS. 6A to 6D show a third embodiment of a drawing according to the invention with corrugated lines,
  • FIGS. 7A to 7D show a fourth embodiment of a drawing according to the invention with inclined lines combined with a relief effect,
  • FIGS. 8A to 8D show a fifth embodiment of a drawing according to the invention with a frame,
  • Figs. 9A to 9E show a sixth embodiment of a drawing according to the invention that can be used to adjust the duplex printing register.

La figure 10 montre un autre mode d'exécution d'un dessin selon l'invention.Figure 10 shows another embodiment of a drawing according to the invention.

La figure 11 finalement montre schématiquement une feuille comportant des objets imprimés, par exemple des billets de banque, chaque billet de banque comprenant un dessin de contrôle selon l'invention et la feuille elle-même comprenant également un dessin de contrôle selon l'invention.Finally, FIG. 11 schematically shows a sheet comprising printed objects, for example banknotes, each bank note comprising a control drawing according to the invention and the sheet itself also comprising a control drawing according to the invention.

Le premier mode d'exécution d'un dessin selon l'invention est décrit en référence aux figures 1A à 1D. Dans la figure 1A, un fond initial 1 est représenté et ce fond comprend un ensemble de lignes parallèles 2 et est imprimé des deux côtés de l'objet imprimé en registre, c'est à dire que les lignes 2 sont exactement en face les unes des autres. Afin de réaliser le dessin selon l'invention, on modifie à l'impression au moins sur l'un des côtés de l'objet imprimé la forme des lignes 2 en déplaçant des secteurs desdites lignes. Cette modification est représentée à la figure 1B, dans laquelle les lignes qui ne sont pas modifiées restent référencées avec le numéro 2, et les lignes modifiées sont référencées 3 à 11 successivement.The first embodiment of a drawing according to the invention is described with reference to FIGS. 1A to 1D. In FIG. 1A, an initial background 1 is shown and this background comprises a set of parallel lines 2 and is printed on both sides of the printed object in register, that is to say that the lines 2 are exactly opposite each other. others. In order to produce the drawing according to the invention, at least one of the sides of the printed object is modified to print the shape of lines 2 by moving sectors of said lines. This modification is represented in FIG. 1B, in which the lines that are not modified remain referenced with the number 2, and the modified lines are referenced 3 to 11 in succession.

Ainsi, la ligne référencée par le numéro 3 comporte plusieurs secteurs successifs référencés 3a à 3g qui sont décalés de la manière représentée dans la figure 1B. De même, les lignes 4 à 11 comprennent également des secteurs successifs décalés de manière appropriée. Comme indiqué, ce fond peut être imprimé sur le côté recto ou le côté verso de l'objet imprimé. A la figure 1C, on a représenté un fond 1 qui est identique au fond initial de la figure 1A. Ce fond 1 est destiné à être imprimé sur l'autre côté de l'objet imprimé par rapport au fond modifié de la figure 1B, mais en registre parfait avec ledit fond modifié. Le résultat de ce registre parfait est que les lignes ou parties de lignes droites se confondent lorsque que l'on regarde l'objet imprimé en transparence, tandis que les secteurs successifs décalés 3a à 3g et ceux des lignes 4 à 11 deviennent visibles en transparence entre lesdites lignes qui se confondent. Ceci a pour résultat de former une image particulière visible uniquement en transparence qui est représentée à la figure 1D. Si les secteurs choisis pour être décalés le sont de manière à former une image particulière prédéterminée, il est alors très facile de contrôler si cette image prédéterminée est visible en transparence et ainsi de contrôler à la fois l'authenticité de l'objet imprimé et le registre d'impression recto-verso.Thus, the line referenced by the number 3 comprises several successive sectors referenced 3a to 3g which are shifted in the manner shown in Figure 1B. Likewise, lines 4 to 11 also include successive sectors suitably offset. As indicated, this background can be printed on the front or back side of the printed object. In FIG. 1C, there is shown a bottom 1 which is identical to the initial bottom of FIG. 1A. This bottom 1 is intended to be printed on the other side of the printed object relative to the modified bottom of Figure 1B, but in perfect register with said modified bottom. The result of this perfect register is that the lines or parts of straight lines are confused when one looks at the object printed in transparency, while the successive sectors shifted 3a to 3g and those of lines 4 to 11 become visible in transparency between said lines which merge. This results in forming a particular image visible only in transparency which is shown in Figure 1D. If the sectors chosen to be offset are so to form a particular predetermined image, then it is very easy to control whether this predetermined image is visible in transparency and thus to control both the authenticity of the printed object and the double-sided printing register.

Ainsi, dans le cas de la figure 1D, la superposition de deux lignes référencées 2 dans les figures 1B et 1C résulte dans les lignes référencées 2 dans la figure 1D, alors que la superposition de la ligne 3 et des secteurs 3a à 3g de la figure 1B avec la ligne 2 correspondante de la figure 1C résulte dans la ligne 12 de la figure 1D, avec les parties plus épaisses 12a et 12 b.Thus, in the case of FIG. 1D, the superposition of two lines referenced 2 in FIGS. 1B and 1C results in the lines referenced 2 in FIG. 1D, whereas the superposition of line 3 and sectors 3a to 3g of FIG. Figure 1B with the corresponding line 2 of Figure 1C results in line 12 of Figure 1D, with the thicker portions 12a and 12b.

De manière similaire, la superposition des lignes 4 à 11 et de leur secteurs décalés sur les lignes correspondante 2 de la figure 1C résulte dans les lignes 13 à 19 de la figure 1D avec leurs parties plus épaisses 14a et 14b, 15a, 16a, 17a, 18a et 18b, 19a et 19b, 20a et 20b respectives.Similarly, the superposition of the lines 4 to 11 and their offset sectors on the corresponding lines 2 of Figure 1C results in the lines 13 to 19 of Figure 1D with their thicker portions 14a and 14b, 15a, 16a, 17a , 18a and 18b, 19a and 19b, 20a and 20b respectively.

Il est important de noter que le trait des lignes des figures 1A à 1D et des secteurs décalés est représenté de manière exagérée pour permettre de bien comprendre la présente invention: en fait, dans la réalité, de telles lignes ont une épaisseur variant environ entre 10 µm et 500 µm et les écarts entre les lignes ont une largeur comprise approximativement entre la moitié et le double de la largeur d'une ligne, c'est-à-dire entre 5 µm et 1000 µm. Le but est de réaliser un tel dessin dont les secteurs décalés sont invisibles à l'oeil nu et ne sont reconnu ni par les photocopieurs ni par les scanners, de sorte qu'ils ne sont pas imprimés sur une contrefaçon de l'objet imprimé. Ainsi, un contrôle en transparence permet de constater immédiatement la présence ou l'absence d'un élément selon l'invention, de même que le registre recto-verso peut lui aussi être vérifié, car seul un registre parfait formera l'élément désiré.It is important to note that the lines of the lines of FIGS. 1A to 1D and the staggered sectors are shown in an exaggerated manner to allow a good understanding of the present invention: in fact, in reality, such lines have a thickness varying between about 10 μm and 500 μm and the gaps between the lines have a width between approximately half and twice the width of a line, that is to say between 5 μm and 1000 μm. The goal is to make such a design whose staggered areas are invisible to the naked eye and are recognized neither by photocopiers or scanners, so they are not printed on a counterfeit of the printed object. Thus, a transparency control makes it possible to immediately detect the presence or absence of an element according to the invention, just as the double-sided register can also be checked, since only a perfect register will form the desired element.

De plus, dans l'exemple représenté à la figure 1D, les secteurs des lignes ont été décalés de façon à former la lettre "K". Bien entendu, ceci n'est qu'un exemple et d'autres lettres, compositions de lettres ou dessins sont possibles, le résultat recherché étant de varier la densité de couleur en transparence de façon à former un signe visible si le registre recto-verso n'est pas correct.In addition, in the example shown in FIG. 1D, the sectors of the lines have been shifted so as to form the letter "K". Of course, this is only an example and other letters, compositions of letters or drawings are possible, the desired result being to vary the color density in transparency so as to form a visible sign if the double-sided register is not correct

De plus, ce mode n'est pas limité à un décalage vers le haut comme indiqué ci-dessus, mais on peut aussi utiliser un décalage vers le bas, ou, si les lignes du fond sont tournées de 90°, vers la droite ou encore vers la gauche pour le recto ou le verso.In addition, this mode is not limited to an upward shift as indicated above, but it can also be used a downward shift, or, if the bottom lines are rotated 90 °, to the right or again to the left for the front or back.

Dans la première variante du premier mode d'exécution telle que représentée dans les figures 2A à 2D, on a modifié à la fois les lignes du fond recto que celles du fond verso. En partant du fond initial 1 de la figure 2A avec les lignes parallèles 2, sur l'un des côtés, par exemple le côté recto, on a déplacé des secteurs successifs des lignes comme représentés dans la figure 2B: ainsi, la ligne 21 comporte les secteurs successifs 21a à 21g et les autres lignes 22 à 29 comprennent chacune également des secteurs décalés comme représenté dans cette figure 2B.In the first variant of the first embodiment as shown in FIGS. 2A to 2D, the lines of the front recto have been modified as well as those of the back end. Starting from the initial bottom 1 of FIG. 2A with the parallel lines 2, on one of the sides, for example the front side, successive sectors of the lines have been displaced as shown in FIG. 2B: thus, the line 21 comprises the successive sectors 21a to 21g and the other lines 22 to 29 also each comprise staggered sectors as represented in this FIG. 2B.

Dans cette première variante, on a en plus également modifié les lignes du fond de l'autre côté de l'objet imprimé, comme représenté à la figure 2C qui serait le côté verso si la figure 2B est le côté recto. Toutefois, dans cette variante, la modification des secteurs de lignes se fait de manière inversée entre le côté recto et le côté verso. Dans l'hypothèse où la figure 2B représente le côté recto, les secteurs de lignes (par exemple 21a à 21g) sont décalés vers le haut de la figure, alors que dans la figure 2C, qui serait le verso selon l'hypothèse initiale, les secteurs de ligne (par exemple 31a à 31g) sont décalés vers le bas de la figure 2C.In this first variant, the lines of the bottom of the other side of the printed object have also been modified, as shown in FIG. 2C, which would be the back side if FIG. 2B is the front side. However, in this variant, the modification of the line sectors is reversed between the front side and the back side. Assuming that FIG. 2B represents the front side, the sectors of lines (for example 21a to 21g) are shifted upwards in the figure, whereas in FIG. 2C, which would be the backside according to the initial hypothesis, the line sectors (for example 31a to 31g) are shifted downwards in FIG. 2C.

Le résultat en transparence de la superposition des figures 2B et 2C est schématisé à la figure 2D: de nouveau, si le registre est correct, on forme un signe prédéterminé qui dépend des décalages apportés aux lignes, dans cet exemple la lettre "K", par la superposition des lignes et des secteurs de lignes décalés. Ainsi, dans cette variante, la superposition des lignes référencées 2 dans les figures 2B et 2C donne les lignes 2 de la figure 2D, et, par exemple, la superposition de la ligne 21 avec les secteurs 21a à 21g de la figure 2B avec la ligne 30 et les secteurs 30a à 30g de la figure 2C résulte dans la ligne 39 et les secteurs élargis 39a et 39b de la figure 2D, lorsque le registre est correct. De manière tout à fait similaire, la superposition des lignes 22 à 29 de la figure 2B avec les lignes 31 à 38 de la figure 2C résulte, en transparence, dans les lignes 40 à 47 de la figure 2D, lorsque le registre est correct avec les secteurs élargis représentés dans la figure.The result in transparency of the superposition of FIGS. 2B and 2C is shown diagrammatically in FIG. 2D: again, if the register is correct, a predetermined sign is formed which depends on the offsets made to the lines, in this example the letter "K", by superimposing lines and sectors of offset lines. Thus, in this variant, the superposition of the lines referenced 2 in FIGS. 2B and 2C gives the lines 2 of the FIG. 2D, and, for example, the superposition of line 21 with sectors 21a to 21g of FIG. 2B with line 30 and sectors 30a to 30g of FIG. 2C results in line 39 and the widened sectors 39a and 39b. of Figure 2D, when the register is correct. In a very similar way, the superposition of the lines 22 to 29 of FIG. 2B with the lines 31 to 38 of FIG. 2C results, in transparency, in the lines 40 to 47 of FIG. 2D, when the register is correct with the enlarged sectors shown in Figure.

L'avantage particulier de cette variante est que, comme l'on modifie les deux fonds de manière inversée, les décalages peuvent être moins importants que lorsqu'un seul fond est modifié puisque les décalages recto-verso s'additionnent: il suffit de comparer les figures 1B et 2B pour percevoir ce fait. Il s'ensuit que si les décalages sur chaque fond sont plus petits, ils sont d'autant plus difficiles à percevoir à l'oeil nu, ou à reproduire par photocopie ou au moyen d'un scanner en considérant un fond recto ou verso seul, mais l'effet en transparence n'est pas amoindri puisque les décalages s'additionnent en transparence et restent tout aussi visibles.The particular advantage of this variant is that, as the two funds are modified inversely, the offsets can be smaller than when a single background is modified since the two-sided offsets add up: it is sufficient to compare Figures 1B and 2B to perceive this fact. It follows that if the offsets on each bottom are smaller, they are all the more difficult to perceive with the naked eye, or reproduce by photocopy or by means of a scanner considering a single front or back bottom , but the effect in transparency is not diminished since the offsets add up in transparency and remain just as visible.

Bien entendu, cette variante n'est pas limitée à un décalage vers le bas ou vers le haut comme indiqué ci-dessus, mais on peut aussi utiliser un décalage vers la droite ou vers la gauche pour le recto et/ou le verso si les lignes du fond sont tournées de 90° par rapport aux figures 2A à 2D.Of course, this variant is not limited to a shift downwards or upwards as indicated above, but it is also possible to use a shift to the right or to the left for the front and / or back if the bottom lines are rotated 90 ° with respect to FIGS. 2A to 2D.

Une deuxième variante du premier mode d'exécution est décrite en référence aux figures 3A à 3D. Cette variante est similaire à celle représentée aux figures 2A à 2D pour ce qui concerne les secteurs de lignes qui sont décalés (voir les figures 3B et 3C). La principale différence se fait à l'impression superposée en recto-verso. Dans la variante des figures 2A à 2D, on cherchait à superposer exactement les lignes du fond recto et du fond verso pour faire ressortir les secteurs de lignes décalés (21a à 21g ou 30a à 30g) entre lesdites lignes. Dans la variante des figures 3A à 3D en revanche, lors de l'impression recto-verso, on va chercher à imprimer lignes non pas les unes sur les autres mais en les décalant les unes par rapport aux autres en alternance de sorte que chaque ligne du recto se retrouve entre deux lignes voisines du verso. Dans ce cas, un décalage est voulu de manière à créer des espaces vides qui correspondent au décalage des secteurs de lignes, de sorte que l'élément de contrôle est formé par l'absence d'impression plutôt que par la présence de secteurs décalés. Par exemple, en se référant aux figures 3B et 3C, si l'on imprime les lignes 2 et 48 sur le recto, le verso comprendra la ligne 57 qui sera placée entre lesdites lignes 2 et 48 du recto, et ainsi de suite pour les lignes successives 49 à 2 de la figure 3B entre lesquelles successivement on imprimera de l'autre côté les lignes 58 à 66 de la figure 3C. Le résultat en transparence est alors représenté à la figure 3D, dans laquelle on constate, d'une part, que la fréquence des lignes a augmenté et, d'autre part, que le décalage des secteurs de lignes a créé des trous, par exemple 67 et 68, qui forment une image déterminée, dans le cas présent, la lettre "K". On peut donc facilement contrôler le registre de l'impression en transparence.A second variant of the first embodiment is described with reference to FIGS. 3A to 3D. This variant is similar to that shown in FIGS. 2A to 2D with respect to the line sectors that are shifted (see FIGS. 3B and 3C). The main difference is in double-sided superimposed printing. In the variant of FIGS. 2A to 2D, it was sought to exactly superimpose the lines of the front and bottom backs to bring out the sectors of offset lines (21a to 21g or 30a to 30g) between said lines. In the variant of FIGS. 3A to 3D, on the other hand, in the case of double-sided printing, it will be sought to print lines not on each other but by shifting them relative to each other alternately so that each line the front is between two lines on the back side. In this case, an offset is in order to create empty spaces corresponding to the offset of the line sectors, so that the control element is formed by the absence of printing rather than the presence of offset sectors. For example, with reference to FIGS. 3B and 3C, if lines 2 and 48 are printed on the front, the back side will comprise line 57 which will be placed between said lines 2 and 48 of the front, and so on for successive lines 49 to 2 of Figure 3B between which successively will be printed on the other side the lines 58 to 66 of Figure 3C. The result in transparency is then represented in FIG. 3D, in which it is noted, on the one hand, that the frequency of the lines has increased and, on the other hand, that the offset of the line sectors has created holes, for example 67 and 68, which form a specific image, in this case, the letter "K". It is therefore easy to control the register of printing in transparency.

Les figures 4A à 4D représentent une vue plus générale du dessin de contrôle selon l'invention à titre d'exemple et permet de mieux juger l'effet visuel créé par un dessin selon l'invention. Dans ces figures 4A à 4D, on s'est basé sur le mode d'exécution représenté dans les figures 2A à 2D dans lequel le fond recto et le fond verso comprennent des secteurs de lignes décalés. Le fond initial 1 de la figure 4A comprend un ensemble de lignes 2 parallèles les une aux autres. Dans la figure 4B, les quatre première lignes (référencées 2) depuis le haut ne sont pas modifiées, puis à partir de la cinquième ligne, on commence à décaler des secteurs des lignes successives (références 21', 22' etc.) comme représenté dans la figure 2B. De manière similaire dans la figure 4C, les quatre première lignes 2 ne sont pas modifiées, alors qu'à partir de la cinquième ligne (référencée 31') on trouve des secteurs décalés d'un manière comparable à celle représentée dans la figure 2C. Les lignes des figures 4B et 4C sont donc imprimées en registre sur le côté recto et le côté verso respectivement de l'objet et si le registre recto-verso est correct, on obtient ainsi la figure 4D en transparence, qui correspond à la figure 2D.FIGS. 4A to 4D represent a more general view of the control drawing according to the invention by way of example and makes it possible to better judge the visual effect created by a drawing according to the invention. In these FIGS. 4A to 4D, the embodiment shown in FIGS. 2A to 2D has been used in which the front and back sides comprise offset line sectors. The initial bottom 1 of FIG. 4A comprises a set of lines 2 parallel to one another. In FIG. 4B, the first four lines (referenced 2) from the top are not modified, and then starting from the fifth line, sectors of the successive lines (references 21 ', 22', etc.) are started off as shown. in Figure 2B. Similarly in FIG. 4C, the first four lines 2 are not modified, whereas starting from the fifth line (referenced 31 ') there are sectors shifted in a manner comparable to that represented in FIG. 2C. The lines of FIGS. 4B and 4C are thus printed in register on the front side and the back side respectively of the object and if the recto-verso register is correct, FIG. 4D is thus obtained in transparency, which corresponds to FIG. 2D .

Une deuxième mode d'exécution de l'invention est maintenant décrit en référence aux figures SA à 5D. Dans ce mode d'exécution, le fond 67 est constitué de cercles concentriques comme représenté dans la figure SA. De manière similaire aux modes d'exécution décrits précédemment et selon le même principe, on décale de manière appropriée des secteurs des lignes concentriques dans les zones encadrées 68, 69 des figures 5B et 5C. Ainsi, comme dans les modes d'exécution précédents, si le registre recto-verso est correct, ces décalages formeront une image prédéterminée qui deviendra visible en transparence, comme schématisé à la figure 5D. A nouveau, dans ce cas, le signe est la lettre "K".A second embodiment of the invention is now described with reference to FIGS. 5D to 5D. In this embodiment, the bottom 67 consists of concentric circles as shown in FIG. In a similar way to the embodiments described above and according to the same principle, we shift so appropriate concentric line sectors in the framed areas 68, 69 of Figures 5B and 5C. Thus, as in the previous embodiments, if the two-sided register is correct, these offsets will form a predetermined image that will become visible in transparency, as shown schematically in Figure 5D. Again, in this case, the sign is the letter "K".

Toujours selon le même principe, les figures 6A à 6D montrent un troisième mode d'exécution dans lequel le fond 70 est formé par des lignes ondulées. Comme dans les modes d'exécution décrits précédemment, on décale des secteurs de lignes de manière appropriée pour former un signe ou une image prédéterminée. On peut décaler des secteurs de lignes soit sur un seul des deux côtés de l'impression (comme dans le mode d'exécution des figures 1B et 1C) , ou sur les deux côtés (comme dans le mode d'exécution des figures 2B et 2C) pour créer l'image voulue en transparence. Dans l'exemple des figures 6A à 6D, on a modifié le fond côté recto (figure 6B) dans la zone 71 et verso (figure 6C) dans la zone 72 et la superposition en transparence, quand le registre est correct, a pour résultat la figure 6D, dans laquelle la lettre "K" apparaît en transparence.Still according to the same principle, FIGS. 6A to 6D show a third embodiment in which the bottom 70 is formed by wavy lines. As in the previously described embodiments, line sectors are shifted appropriately to form a predetermined sign or image. It is possible to shift line sectors either on one of the two sides of the print (as in the embodiment of FIGS. 1B and 1C), or on both sides (as in the embodiment of FIGS. 2C) to create the desired image in transparency. In the example of FIGS. 6A to 6D, the front side background (FIG. 6B) has been modified in the area 71 and back (FIG. 6C) in the area 72 and the transparent superposition, when the register is correct, has the result Figure 6D, in which the letter "K" appears in transparency.

Les figures 7A-7D montrent un quatrième mode d'exécution dans lequel on combine à des modification clairement visibles des lignes du fond et des décalages selon le principe de l'invention. Dans ce mode, à titre d'exemple, on part d'un fond initial 73 de lignes parallèles inclinées tel que représenté en figure 7A.Figures 7A-7D show a fourth embodiment in which is combined with clearly visible changes of the bottom lines and offsets according to the principle of the invention. In this mode, for example, we start from an initial background 73 of inclined parallel lines as shown in Figure 7A.

Sur le côté recto (figure 7B, fond 74), on effectue des décalages bien visibles desdites lignes de façon à former un signe prédéterminé 75, dans le cas présent le chiffre "200". En même temps, on applique le principe de l'invention aux lignes et on décale des secteurs de lignes comme décrit précédemment (par exemple comme dans la figure 2B) de façon suffisamment faible pour que ces décalages ne soient pas visibles en considérant la face recto seule. On procède de manière similaire pour le verso, comme représenté en figure 7C. Dans ce fond verso, référencé 76, on a modifié les lignes de manière visible pour former les lettres successives "DLRG" sur le fond lui-même. Simultanément, les lignes du fond ont été altérées comme décrit précédemment (par exemple comme dans la figure 2C) de façon suffisamment faible pour être invisible mais de manière à former un signe donné. Le résultat en transparence est schématisé à la figure 7D, dans laquelle on peut voir à la fois les chiffre "200", les lettres "DLRG" et le dessin de contrôle qui est dans ce cas la lettre "K", cette lettre apparaissant si le registre recto-verso est correct.On the front side (FIG. 7B, bottom 74), very visible offsets of said lines are made so as to form a predetermined sign 75, in this case the number "200". At the same time, the principle of the invention is applied to the lines and line sectors are shifted as previously described (for example as in FIG. 2B) sufficiently low so that these offsets are not visible by considering the front face alone. The procedure is similar for the back, as shown in FIG. 7C. In this back cover, referenced 76, the lines were modified in a visible manner to form the successive letters "DLRG" on the bottom itself. Simultaneously, the bottom lines were altered as previously described (by example as in Figure 2C) sufficiently weak to be invisible but so as to form a given sign. The result in transparency is shown schematically in FIG. 7D, in which one can see both the number "200", the letters "DLRG" and the control drawing which is in this case the letter "K", this letter appearing if the double-sided register is correct.

L'un des avantages de ce mode d'exécution est le fait que comme des images, des chiffres ou des lettres sont formées de manière clairement visible sur le fond, que ce soit sur le fond recto 74, le fond verso 76 ou sur les deux à la fois, les altérations des lignes destinées à former le dessin de sécurité sont encore plus difficile à percevoir si l'on considère l'un des fonds 74 ou 76 seul et non en transparence. En revanche, en transparence, l'effet selon l'invention est conservé et le contrôle est tout à fait possible, comme démontré dans la figure 7D.One of the advantages of this embodiment is that as images, numbers or letters are formed in a clearly visible manner on the background, whether on the front back 74, the bottom back 76 or the two at a time, the alterations of the lines intended to form the security design are even more difficult to perceive if we consider one of the funds 74 or 76 alone and not transparently. On the other hand, in transparency, the effect according to the invention is conserved and the control is quite possible, as shown in FIG. 7D.

Un autre mode d'exécution utilisant le principe de l'invention est représenté aux figures 8A à 8D. Dans ce mode, on utilise non pas des lignes pour former le fond mais celui-ci est composé d'une trame (fond 77 de la figure 8A). De manière identique aux autres modes d'exécution, la trame est déformée de manière prédéterminée pour former un signe donné. Dans le cas du mode représenté, on a déformé la trame 78 du côté recto (figure 8B) dans les zones 79 et 80 et la trame 81 du côté verso (figure 8C) dans les zones 82 et 83. Ainsi, une fois que l'impression a été réalisé, si le registre est correct, les déformations respectives dans les zones des trames côté recto et côté verso forment un signe défini qui devient visible en transparence. Dans le cas présent, le signe qui a été formé selon ce principe est schématisé à la figure 8D par les lettres "OK".Another embodiment using the principle of the invention is shown in FIGS. 8A to 8D. In this mode, not use lines to form the bottom but it is composed of a frame (bottom 77 of Figure 8A). In a manner identical to the other embodiments, the frame is deformed in a predetermined manner to form a given sign. In the case of the illustrated mode, the front-side frame 78 (FIG. 8B) is deformed in the zones 79 and 80 and the back-side frame 81 (FIG. 8C) in the zones 82 and 83. Thus, once the printing has been performed, if the register is correct, the respective deformations in the areas of the front and back side frames form a defined sign which becomes visible in transparency. In the present case, the sign which has been formed according to this principle is shown diagrammatically in FIG. 8D by the letters "OK".

Un autre mode d'exécution de l'invention est décrit en référence aux figures 9A à 9E. Dans ce mode d'exécution, le dessin selon l'invention est utilisé pour ajuster les cylindres d'impression lors de la mise en service d'une machine d'impression recto-verso. En effet, l'on s'est aperçu que comme le principe de l'invention permettait de contrôler un registre recto-verso sur un objet imprimé, on pouvait utiliser ce principe à la fois pour détecter des contrefaçons fabriquées au moyen d'objets photocopiés ou scannés et pour régler le registre recto-verso d'une machine d'impression en créant un signe particulier à cet effet. Dans le mode d'exécution des figures 9A à 9E, le signe de contrôle décrit comporte deux flèches de sens opposé. Selon ce mode d'exécution, le fond initial du côté recto 85 est composé de lignes successives parallèles 86 comme représenté dans la figure 9A. Le fond initial du côté verso 87 est composé de lignes successives parallèles 88 comme représenté dans la figure 9B. Chaque ligne 88 comprend en outre des segments 88a à 88f qui sont décalés comme représenté dans la figure 9B. L'important pour les lignes 88 de la figure 9B est que leur hauteur (par exemple la longueur des segments 88b et 88d) soit égale à la largeur des lignes 86 de la figure 9A. Cela est représenté dans les figures 9A et 9B par la partie 89 entourée par des traits tiretés. Cette hauteur égale est importante et permet d'utiliser le principe de l'invention pour ajuster le registre recto-verso de l'impression. En effet, si le registre est correct, les fonds 85 et 87 se superposent, c'est-à-dire que les lignes 86 et 88 se superposent et que, en transparence, le fond recto cache le fond verso, autrement dit, l'image qui apparaît en transparence est celle de la figure 9C avec les lignes 89 d'épaisseur constante.Another embodiment of the invention is described with reference to FIGS. 9A to 9E. In this embodiment, the drawing according to the invention is used to adjust the printing cylinders during the commissioning of a two-sided printing machine. Indeed, we realized that as the principle of the invention allowed to control a double-sided register on a printed object, we could use this principle both to detect counterfeits made by means of photocopied objects or scanned and to adjust the double-sided register of a printing machine by creating a particular sign for this purpose. In the embodiment of FIGS. 9A to 9E, the control sign described comprises two arrows of opposite direction. According to this embodiment, the initial background of the front side 85 is composed of successive parallel lines 86 as shown in FIG. 9A. The initial backside 87 is composed of parallel successive lines 88 as shown in FIG. 9B. Each line 88 further comprises segments 88a to 88f which are shifted as shown in FIG. 9B. The important thing for lines 88 of FIG. 9B is that their height (for example the length of segments 88b and 88d) is equal to the width of lines 86 of FIG. 9A. This is shown in FIGS. 9A and 9B as part 89 surrounded by dashed lines. This equal height is important and allows to use the principle of the invention to adjust the register recto-verso printing. Indeed, if the register is correct, the funds 85 and 87 are superimposed, that is to say that lines 86 and 88 are superimposed and that, in transparency, the recto background hides the bottom back, ie, image which appears in transparency is that of Figure 9C with lines 89 of constant thickness.

En revanche, en cas de registre imparfait et d'un décalage longitudinal des impressions recto et verso, la situation qui se présente est celle illustrée à la figure 9D ou 9E, en fonction du décalage effectif. Par exemple, si le fond verso est décalé vers le haut par rapport au fond recto, c'est-à-dire que le cylindre imprimant le verso est "en avance" par rapport au cylindre imprimant le recto, alors les segments 88c, 88f et 88h vont apparaître au moins partiellement en transparence comme illustré dans le bas de la figure 9D et les segments droits 90 correspondront à la superposition des droites 86 et 88a, 88e et 88g des figures 9A et 9B. Dans ce cas, et si les segments sont arrangés de manière à former une image donnée, comme par exemple deux flèches de sens opposé, si le décalage est vers le haut pour le verso, la flèche dirigée vers le haut va devenir foncée comme illustré dans la figure 9D (côté gauche de la figure) et celle dirigée vers le bas va s'éclaircir (côté droit de la figure 9D). De manière inverse, si le décalage est vers le bas, alors ce sont les segments 88a, 88e et 88g qui vont apparaître en transparence comme illustré dans le bas de la figure 9E et les lignes 90 de cette figure seront le résultat de la superposition des lignes 86 (figure 9A) avec les segments 88c, 88f et 88h (figure 9B). Dans ce cas, c'est la flèche dirigée vers le bas qui va devenir foncée et celle dirigée vers le haut qui va s'éclaircir, comme représenté dans la partie supérieure de la figure 9E.On the other hand, in the case of an imperfect register and a longitudinal offset of the front and back impressions, the situation that presents itself is that illustrated in FIG. 9D or 9E, as a function of the actual offset. For example, if the bottom back is offset upward from the back recto, that is to say that the cylinder printing the back is "in advance" relative to the cylinder printing the front, then the segments 88c, 88f and 88h will appear at least partially in transparency as shown in the bottom of FIG. 9D and the straight segments 90 will correspond to the superposition of lines 86 and 88a, 88e and 88g of FIGS. 9A and 9B. In this case, and if the segments are arranged to form a given image, such as two arrows in the opposite direction, if the offset is upwards for the back, the upward arrow will become dark as shown in FIG. Figure 9D (left side of the figure) and the downward one will become lighter (right side of Figure 9D). Conversely, if the offset is downwards, then segments 88a, 88e and 88g will appear in transparency as shown in the bottom of FIG. 9E and lines 90 of this figure will be the result of the superposition of lines 86 (FIG. 9A) with segments 88c, 88f and 88h (FIG. 9B). In this case, it is the down arrow that will become dark and the upwardly lightened, as shown in the upper part of Figure 9E.

Un tel dessin de contrôle permet ainsi très facilement de contrôler le registre recto-verso d'impression, la finesse de l'ajustement étant lié à l'épaisseur des lignes 86 et des décalages 88a à 88g. De plus, ce moyen de contrôle peut être utilisé à la fois pour l'ajustage du décalage longitudinal que pour l'ajustage latéral. Il suffit pour cela de combiner un dessin selon les figures 9A et 9B avec un dessin identique mais dans lequel les lignes sont orientées perpendiculairement à celles des figures 9A et 9B.Such a control pattern thus makes it very easy to control the recto-verso print register, the fineness of the adjustment being related to the thickness of the lines 86 and offsets 88a to 88g. In addition, this control means can be used both for the adjustment of the longitudinal offset and for the lateral adjustment. It suffices to combine a drawing according to Figures 9A and 9B with an identical drawing but in which the lines are oriented perpendicular to those of Figures 9A and 9B.

La figure 10 montre encore un autre mode d'exécution d'un dessin selon l'invention. Dans ce mode d'exécution, on masque le décalage des lignes pour le dissimuler encore plus à la vue à l'oeil nu. Selon l'exemple représenté, on découpe chaque ligne en segments de S1 à Sn. Un segment Sn est caractérisé par sa largeur de ligne ln et par les distances dn1 et dn2 qu'il y a entre ce segment et le segment correspondant de la ligne précédente et de la ligne suivante. Un rapport de référence est défini par le premier segment d'une ligne: r1 = l1/(d11 + d 12)/2. Ce rapport largeur de ligne / distance moyenne est maintenu constant et égal à r1 pour tous les segments de ligne.
Ainsi, pour le segment Sn, on a rn = ln/(dn1 + d n2)/2 = r1 d'où ln = r1 * (dn1 + d n2)/2.Figure 10 shows yet another embodiment of a drawing according to the invention. In this mode of execution, we hide the shift of the lines to hide it even more to the sight with the naked eye. According to the example shown, each line is cut into segments of S 1 to S n . A segment S n is characterized by its line width l n and by the distances d n1 and d n2 that there is between this segment and the corresponding segment of the preceding line and the following line. A reference report is defined by the first segment of a line: r 1 = l 1 / (d 11 + d 12 ) / 2. This average line width / distance ratio is kept constant and equal to r 1 for all line segments.
Thus, for the segment S n , we have ar n = l n / (d n1 + d n2 ) / 2 = r 1 where l n = r 1 * (d n1 + d n2 ) / 2.

De plus la longueur des segments peut varier le long des lignes, et en particulier des segments plus courts sont avantageux dans les zones à fort changement et donnent un meilleur masquage.In addition, the length of the segments may vary along the lines, and in particular shorter segments are advantageous in areas of high change and give better masking.

La figure 11 illustre de manière schématique comment des dessins utilisant le principe de l'invention peuvent être combinés sur une même feuille portant des impressions, par exemple des impressions de papiers-valeurs. Cette feuille F comporte un certain nombre d'impressions 91 rangées de manière matricielle en lignes et en colonnes les unes à côté des autres. Chacune de ces impressions 91 comprend au moins un élément de contrôle 92 utilisant le principe décrit en référence aux figures 1A à 8D. Dans ce cas, l'élément 92 est utilisé comme élément de sécurité empêchant une falsification ultérieure des impressions, par exemple par photocopie ou scannage. En plus, on utilise deux éléments de contrôle 93 et 94 selon le mode d'exécution de l'invention décrit en référence aux figures 9A à 9E pour ajuster le registre d'impression recto-verso. Ces éléments de contrôle 93 et 94 se trouvent, à titre d'exemple, sur les bords de la feuille F et alignés selon deux axes perpendiculaires ce qui permet un ajustement du registre d'impression recto-verso selon les deux directions perpendiculaires de la manière exposée ci-dessus.Figure 11 schematically illustrates how drawings using the principle of the invention can be combined on one and the same sheet bearing prints, e.g. paper-value impressions. This sheet F has a number of prints 91 arrayed in rows and columns next to one another. Each of these prints 91 comprises at least one control element 92 using the principle described with reference to FIGS. 1A to 8D. In this case, the element 92 is used as a security element preventing subsequent falsification of the prints, for example by photocopying or scanning. In addition, two elements are used 93 and 94 according to the embodiment of the invention described with reference to Figures 9A to 9E to adjust the two-sided printing register. These control elements 93 and 94 are, for example, on the edges of the sheet F and aligned along two perpendicular axes which allows an adjustment of the recto-verso printing register in the two perpendicular directions of the manner outlined above.

L'invention n'est pas limitée aux modes d'exécution décrits et des variations sont possibles notamment par l'utilisation de moyens équivalents.
D'autre part, on peut utiliser ces moyens de contrôles pour tous types de papiers-valeurs, à savoir des billets de banque, des papiers-fiduciaires etc.
Un élément de contrôle selon l'invention peut être utilisé non seulement pour empêcher la contrefaçon mais aussi pour contrôler la qualité de l'impression. Si l'on imprime des billets de banque, par exemple, il est très facile de vérifier la qualité d'impression de billets individuels en contrôlant la présence de l'élément de contrôle. Des moyens simples et connus permettraient en effet de voir si le signe de contrôle apparaît. Par exemple en illuminant les billets depuis leur côté verso, une caméra placée du côté recto peut parfaitement repérer la présence ou l'absence du signe de contrôle.
De plus le support d'impression peut être varié: on peut utiliser du papier ou d'autre supports comme par exemple des supports plastiques, en polymère, polyester ou équivalents. Plus la transparence du support d'impression est importante, plus l'effet en transparence selon l'invention est marqué et visible. Ainsi, on peut également imaginer une préparation préalable du support d'impression dans la zone d'impression comportant l'élément de contrôle selon l'invention, par exemple par un vernis ou un effet filigrane.The invention is not limited to the described embodiments and variations are possible in particular by the use of equivalent means.
On the other hand, these means of control can be used for all types of securities, namely banknotes, fiduciary papers, etc.
A control element according to the invention can be used not only to prevent counterfeiting but also to control the quality of printing. For example, when printing banknotes, it is very easy to check the print quality of individual banknotes by checking the presence of the check item. Simple and known means would indeed make it possible to see if the control sign appears. For example by illuminating the notes from their back side, a camera placed on the front side can perfectly identify the presence or absence of the control sign.
In addition, the printing medium can be varied: it is possible to use paper or other supports such as, for example, plastic supports, made of polymer, polyester or the like. The greater the transparency of the print medium, the more the transparency effect according to the invention is marked and visible. Thus, it is also possible to imagine a preliminary preparation of the printing medium in the printing zone comprising the control element according to the invention, for example by a varnish or a watermark effect.

Claims (15)

  1. A control element for a printed article, in particular for security papers or the like, having a first background (Figures 1B, 2B, 3B, 4B, 5B, 6B, 7B, 8B) printed on a first side of said printed article, comprising at least a first set of geometrical shapes (2-11 ; 2, 21-29 ; 2, 48-56 ; 2, 21', 22') and characterized in that it comprises a second background (Figures 1C, 2C, 3C, 4C, 5C, 6C, 7C, 8C) printed on a second reverse side of said printed article, the second background being printed so as to face the first background and be in register with the latter, said second background comprising at least a second set of geometrical shapes (2 ; 2, 30-38 ; 57-66 ; 2, 31', 32') corresponding to the first set of geometrical shapes, and in that at least one of said backgrounds includes offset sectors (3a-3g ; 21a-21g, 30a-30g) which are offset compared to the sets of geometrical shapes so that, when a side/reverse side register between said first and second background is correct, the control element has regions of variable density (12a, 12b, 13a, 13b, 14a, 14b, 15a, 16a, 17a, 18a, 18b, 19a, 19b, 20a, 20b ; 39a, 39b ; 67, 68) which are visible in transmitted light only and are created by said offset sectors.
  2. The control element as claimed in claim 1, characterized in that the first and second backgrounds are printed so that said first and second sets of geometrical shapes are superposed when viewed in transmitted light, said offset sectors becoming visible in transmitted light between said geometrical shapes so that to create regions of higher density (12a, 12b, 13a, 13b, 14a, 14b, 15a, 16a, 17a, 18a, 18b, 19a, 19b, 20a, 20b ; 39a, 39b ; 67, 68) than that of the geometrical shapes.
  3. The control element as claimed in claim 1, wherein characterized in that said first and second backgrounds are printed so that said first and second sets of geometrical shapes are offset one with respect to the other in an alternating manner when viewed in transmitted light, said offset sectors creating empty spaces (67, 68) between said geometrical shapes.
  4. The control element as claimed in one of claims 1, 2 or 3, characterized in that said offset sectors form a predetermined image.
  5. The control element as claimed in one of previous claims, characterized in that said sets of geometrical shapes are formed by parallel lines.
  6. The control element as claimed in one of claims 1 to 4, characterized in that said sets of geometrical shapes are formed by concentric lines.
  7. The control element as claimed in one of claims 1 to 4, characterized in that said sets of geometrical shapes are formed by wavy lines.
  8. The control element as claimed in one of claims 1 to 4, characterized in that said sets of geometrical shapes are formed by a regular screen.
  9. The control element as claimed in one of previous claims, characterized in that the two backgrounds include offset sectors.
  10. The control element as claimed in claim 9, characterized in that the offset sectors of first background and the offset sectors of second background are offset in opposite direction.
  11. The control element as claimed in claim 10, characterized in that the regions of variable density are created by addition of offset sectors of first background and offset sectors of second background.
  12. The control element as claimed in any one of previous claims, characterized in that said sets of geometrical shapes include a plurality of lines having a width lying between 10 µm and 500 µm and a spacing between the lines lying between one half and twice the width of a line.
  13. The control element as claimed in any one of previous claims, characterized in that at least one of said first and second backgrounds comprises intervals clearly visible forming a predetermined sign visible on the corresponding face of the printed article.
  14. Security paper characterized in that it comprises at least one control element (92) according to one of previous claims.
  15. Sheet comprising successive prints arranged in matrix form with lines and columns, said sheet being characterized in that it comprises at least one control element (92) according to one of claims 1 to 13.
EP02405732A 2001-09-07 2002-08-28 Control element for printed matter Expired - Lifetime EP1291195B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP07011414A EP1847400B1 (en) 2001-09-07 2002-08-28 Control element for printed objects

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CH16612001 2001-09-07
CH16612001 2001-09-07
US10/226,946 US6997482B2 (en) 2001-09-07 2002-08-23 Control element for printed matters

Related Child Applications (1)

Application Number Title Priority Date Filing Date
EP07011414A Division EP1847400B1 (en) 2001-09-07 2002-08-28 Control element for printed objects

Publications (2)

Publication Number Publication Date
EP1291195A1 EP1291195A1 (en) 2003-03-12
EP1291195B1 true EP1291195B1 (en) 2007-06-13

Family

ID=32471170

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02405732A Expired - Lifetime EP1291195B1 (en) 2001-09-07 2002-08-28 Control element for printed matter

Country Status (5)

Country Link
US (2) US6997482B2 (en)
EP (1) EP1291195B1 (en)
JP (1) JP2003175664A (en)
CN (1) CN1284679C (en)
CA (1) CA2399356C (en)

Families Citing this family (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6978036B2 (en) 1998-07-31 2005-12-20 Digimarc Corporation Tamper-resistant authentication techniques for identification documents
CA2399356C (en) * 2001-09-07 2012-01-24 Kba-Giori S.A. Control element for printed articles
US7974495B2 (en) * 2002-06-10 2011-07-05 Digimarc Corporation Identification and protection of video
EP1398174A1 (en) * 2002-09-10 2004-03-17 Kba-Giori S.A. Reinforced substrate for securities
AU2002951963A0 (en) * 2002-10-09 2002-10-24 Commonwealth Scientific And Industrial Research Organisation Method of combining images
US7429062B2 (en) * 2002-10-30 2008-09-30 Xerox Corporation Anti-counterfeiting see-through moire security feature using frequency-varying patterns
FR2849624B1 (en) * 2003-01-02 2005-03-25 Arjo Wiggins Secutity Sas SHEET WITH A REDUCED OPTICITY AREA ANTICOPY
EP1473152A1 (en) 2003-04-30 2004-11-03 Kba-Giori S.A. Machine for applying and cutting strips of laminate
AU2003902810A0 (en) * 2003-06-04 2003-06-26 Commonwealth Scientific And Industrial Research Organisation Method of encoding a latent image
AU2003903502A0 (en) * 2003-07-07 2003-07-24 Commonwealth Scientific And Industrial Research Organisation A method of forming a diffractive authentication device
US7916343B2 (en) * 2003-07-07 2011-03-29 Commonwealth Scientific And Industrial Research Organisation Method of encoding a latent image and article produced
AU2003903501A0 (en) * 2003-07-07 2003-07-24 Commonwealth Scientific And Industrial Research Organisation A method of forming a reflective authentication device
GB2411862B (en) * 2004-03-11 2007-05-30 Security Print Solutions Ltd A printed material having security information printed thereon and a method of printing security information
RU2268152C9 (en) * 2004-08-11 2006-05-20 Милимарекс Лимитед Printed matter and method for its manufacture (modifications)
GB2430647B (en) * 2005-09-29 2008-09-17 Rue De Int Ltd Security device for security substrates
DE102007005884B4 (en) * 2007-02-07 2022-02-03 Leonhard Kurz Stiftung & Co. Kg security document
DE102007057658A1 (en) * 2007-02-07 2009-06-04 Leonhard Kurz Stiftung & Co. Kg Security document in the form of a multilayer film body for viewing in incident light and in transmitted light, comprises a carrier film and a partial metallic reflective layer in a first region that is transparent or semi-transparent
US20090315319A1 (en) * 2007-07-17 2009-12-24 Jimmy Kendrick Security documents and methods of deterring counterfeiting
US20090021000A1 (en) * 2007-07-17 2009-01-22 Mccartney Larry G Security documents and methods of deterring counterfeiting
US20090020999A1 (en) * 2007-07-17 2009-01-22 Jimmy Kendrick Security documents and methods of deterring counterfeiting
JP5146950B2 (en) * 2007-07-19 2013-02-20 独立行政法人 国立印刷局 Image forming body and method for producing the same
DE102009060506A1 (en) * 2009-12-23 2011-06-30 Giesecke & Devrient GmbH, 81677 Security element and manufacturing method for it
GB2478537B (en) 2010-03-08 2013-07-24 Rue De Int Ltd Improvements in security documents
DE102010019616A1 (en) 2010-05-06 2011-11-10 Giesecke & Devrient Gmbh Security element for security papers, documents of value or the like
JP5828184B2 (en) * 2011-10-12 2015-12-02 独立行政法人 国立印刷局 Latent image printed matter
CN102795008B (en) * 2012-07-02 2015-02-04 湖北联合天诚防伪技术股份有限公司 Dynamic Mohr encryption method of anti-counterfeiting image
DE102012222583A1 (en) 2012-12-07 2014-06-26 Giesecke & Devrient Gmbh Security system for security papers, documents of value or the like
EP2803497A1 (en) 2013-05-13 2014-11-19 KBA-NotaSys SA Printed security feature, object comprising such a printed security feature, and process of producing the same
US9628663B1 (en) * 2016-05-10 2017-04-18 Xerox Corporation Method and apparatus for generating a multi-layer correlation mark key
CN106926599A (en) * 2017-02-20 2017-07-07 陕西科技大学 A kind of preparation method for printing interleave and false proof dynamic moire line
JP7224588B2 (en) * 2020-01-28 2023-02-20 独立行政法人 国立印刷局 Latent image pattern expression structure and method of creating data for phase modulation pattern

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1066109A (en) 1975-11-12 1979-11-13 Canadian Bank Note Company Photographic simulation of density differences as changes of line direction
US4968064A (en) * 1987-01-13 1990-11-06 Mancuso Robert J Variable color print
FR2675428B1 (en) 1991-04-18 1993-08-27 Banque De France FIDUCIARY OR SECURITY DOCUMENT HAVING PRINTED GRAPHISLE AND SECURITY SIGNS.
JP2600094B2 (en) 1992-06-04 1997-04-16 大蔵省印刷局長 Anti-counterfeit latent image print and printing method thereof
US5375886A (en) * 1993-04-14 1994-12-27 Hosokawa Printing Co., Ltd. Counterfeit-proof paper for discouraging attempt at reproduction with copying device
AU699124B2 (en) 1994-11-01 1998-11-26 De La Rue Giori S.A. Method of generating a security design with the aid of electronic means
GB2350319B (en) * 1996-06-14 2001-01-10 Rue De Int Ltd Security printed device
PL189595B1 (en) 1997-06-06 2005-08-31 De La Rue Giori Sa Counterfeit-preventing safety pattern for securities, security piece and method of printing such pattern on securities
US6406062B1 (en) * 1998-05-20 2002-06-18 Global Commerce Group, Llc Hidden image game piece
US6450607B1 (en) * 2000-09-15 2002-09-17 Lexmark International, Inc. Alignment method for color ink jet printer
AU2002313729A1 (en) * 2001-08-07 2003-02-24 Pacific Holographics, Inc. System and method for encoding and decoding an image or document and document encoded thereby
CA2399356C (en) * 2001-09-07 2012-01-24 Kba-Giori S.A. Control element for printed articles

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
None *

Also Published As

Publication number Publication date
CN1406759A (en) 2003-04-02
EP1291195A1 (en) 2003-03-12
US9139034B2 (en) 2015-09-22
CN1284679C (en) 2006-11-15
US20040036272A1 (en) 2004-02-26
CA2399356C (en) 2012-01-24
JP2003175664A (en) 2003-06-24
US6997482B2 (en) 2006-02-14
CA2399356A1 (en) 2003-03-07
US20060001257A1 (en) 2006-01-05

Similar Documents

Publication Publication Date Title
EP1291195B1 (en) Control element for printed matter
EP1597083B1 (en) Security element and printing method
EP2010389B1 (en) Method of generating patterns representing a halftone image
FR2963903A1 (en) MULTICANAL DEVICE OPTICALLY VARIABLE
EP3397501B1 (en) Secure item comprising a combined image and/or a revealing screen
EP3397502B1 (en) Secure article comprising a combined image and/or a revelation screen
CA2816384C (en) Optically variable security device for a valuable document
EP1592561B1 (en) Method for printing a security element and security element
EP2445726B1 (en) Security document with differentiated tactile areas, and method for manufacturing same
EP1847400B1 (en) Control element for printed objects
EP1525101B1 (en) Recto/verso copy-protected security document
EP2318217B1 (en) Fiduciary or similar document comprising color block designs and copperplate printing, and manufacturing method for same
CH716090B1 (en) Security element comprising micro-image elements and security document comprising such a security element.
FR3077767A1 (en) MULTI-CHANNEL IMAGE INTERLACING METHOD
FR2996164A1 (en) Safety device for authenticating origin or issuer of e.g. passport, has first and second images visible under first and second vision angles, where second image is negative of first image and superimposed with first image
WO2017114803A1 (en) Secure item comprising a revealing screen and a combined image
EP4304872A1 (en) Security item or assembly of the security item and of another object comprising a first and a second raster
WO2020119986A1 (en) Security document incorporating a control pattern

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 IE IT LI LU MC NL PT SE SK TR

AX Request for extension of the european patent

Extension state: AL LT LV MK RO SI

17P Request for examination filed

Effective date: 20030226

AKX Designation fees paid

Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR IE IT LI LU MC NL PT SE SK TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

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 IE IT LI LU MC NL PT SE SK TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

REG Reference to a national code

Ref country code: IE

Ref legal event code: FG4D

Free format text: LANGUAGE OF EP DOCUMENT: FRENCH

REF Corresponds to:

Ref document number: 60220604

Country of ref document: DE

Date of ref document: 20070726

Kind code of ref document: P

GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 20070820

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: 20070913

NLV1 Nl: lapsed or annulled due to failure to fulfill the requirements of art. 29p and 29m of the patents act
REG Reference to a national code

Ref country code: IE

Ref legal event code: FD4D

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 FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20070613

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: 20070613

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: 20070924

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: 20071113

Ref country code: IE

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: 20070613

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: 20070913

BERE Be: lapsed

Owner name: KBA-GIORI S.A.

Effective date: 20070831

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

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: 20070613

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

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

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

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

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: 20070914

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: 20070613

Ref country code: MC

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

Effective date: 20070831

26N No opposition filed

Effective date: 20080314

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

Ref country code: BE

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

Effective date: 20070831

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

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: 20070613

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

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: 20070613

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: 20070613

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: 20070828

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: 20070613

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: BA-GIORI S.A.

Free format text: KBA-GIORI S.A.#4, RUE DE LA PAIX#1003 LAUSANNE (CH) -TRANSFER TO- KBA-GIORI S.A.#AVENUE DU GREY 55 CASE POSTALE 347#1000 LAUSANNE 22 (CH)

REG Reference to a national code

Ref country code: CH

Ref legal event code: PFA

Owner name: KBA-NOTASYS SA

Free format text: KBA-GIORI S.A.#AVENUE DU GREY 55 CASE POSTALE 347#1000 LAUSANNE 22 (CH) -TRANSFER TO- KBA-NOTASYS SA#AVENUE DU GREY 55 CASE POSTALE 347#1000 LAUSANNE 22 (CH)

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60220604

Country of ref document: DE

Representative=s name: REBLE & KLOSE RECHTS- UND PATENTANWAELTE, DE

Effective date: 20111222

Ref country code: DE

Ref legal event code: R081

Ref document number: 60220604

Country of ref document: DE

Owner name: KBA-NOTASYS SA, CH

Free format text: FORMER OWNER: KBA-GIORI S.A., LAUSANNE, CH

Effective date: 20111222

Ref country code: DE

Ref legal event code: R082

Ref document number: 60220604

Country of ref document: DE

Representative=s name: REBLE KLOSE SCHMITT PARTNERSCHAFTSGESELLSCHAFT, DE

Effective date: 20111222

REG Reference to a national code

Ref country code: AT

Ref legal event code: HC

Ref document number: 364512

Country of ref document: AT

Kind code of ref document: T

Owner name: KBA-NOTA-SYS SA, CH

Effective date: 20120419

REG Reference to a national code

Ref country code: FR

Ref legal event code: CD

Owner name: KBA-NOTASYS SA, CH

Effective date: 20141223

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 15

REG Reference to a national code

Ref country code: DE

Ref legal event code: R082

Ref document number: 60220604

Country of ref document: DE

Representative=s name: REBLE KLOSE SCHMITT PARTNERSCHAFTSGESELLSCHAFT, DE

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 16

REG Reference to a national code

Ref country code: FR

Ref legal event code: PLFP

Year of fee payment: 17

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: IT

Payment date: 20190830

Year of fee payment: 18

Ref country code: DE

Payment date: 20190827

Year of fee payment: 18

Ref country code: FR

Payment date: 20190826

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: GB

Payment date: 20190827

Year of fee payment: 18

Ref country code: AT

Payment date: 20190827

Year of fee payment: 18

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20190826

Year of fee payment: 18

REG Reference to a national code

Ref country code: DE

Ref legal event code: R119

Ref document number: 60220604

Country of ref document: DE

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

REG Reference to a national code

Ref country code: AT

Ref legal event code: MM01

Ref document number: 364512

Country of ref document: AT

Kind code of ref document: T

Effective date: 20200828

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

Effective date: 20200828

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: 20200831

Ref country code: CH

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

Effective date: 20200831

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: 20200828

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

Ref country code: DE

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

Effective date: 20210302

Ref country code: FR

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

Effective date: 20200831

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

Ref country code: GB

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

Effective date: 20200828

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

Ref country code: IT

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

Effective date: 20200828