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EP0625466A1 - Image applying device in a security printing machine - Google Patents

Image applying device in a security printing machine Download PDF

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Publication number
EP0625466A1
EP0625466A1 EP94810178A EP94810178A EP0625466A1 EP 0625466 A1 EP0625466 A1 EP 0625466A1 EP 94810178 A EP94810178 A EP 94810178A EP 94810178 A EP94810178 A EP 94810178A EP 0625466 A1 EP0625466 A1 EP 0625466A1
Authority
EP
European Patent Office
Prior art keywords
cylinder
paper
machine according
applicator
printing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP94810178A
Other languages
German (de)
French (fr)
Other versions
EP0625466B1 (en
Inventor
Philippe Wyssmüller
Fausto Giori
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
De la Rue 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 De la Rue Giori SA filed Critical De la Rue Giori SA
Publication of EP0625466A1 publication Critical patent/EP0625466A1/en
Application granted granted Critical
Publication of EP0625466B1 publication Critical patent/EP0625466B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65C—LABELLING OR TAGGING MACHINES, APPARATUS, OR PROCESSES
    • B65C9/00—Details of labelling machines or apparatus
    • B65C9/08—Label feeding
    • B65C9/18—Label feeding from strips, e.g. from rolls
    • B65C9/1865—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip
    • B65C9/1869—Label feeding from strips, e.g. from rolls the labels adhering on a backing strip and being transferred directly from the backing strip onto the article
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F19/00—Apparatus or machines for carrying out printing operations combined with other operations
    • B41F19/02—Apparatus or machines for carrying out printing operations combined with other operations with embossing
    • B41F19/06—Printing and embossing between a negative and a positive forme after inking and wiping the negative forme; Printing from an ink band treated with colour or "gold"
    • B41F19/062—Presses of the rotary type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2219/00—Printing presses using a heated printing foil
    • B41P2219/50—Printing presses using a heated printing foil combined with existing presses
    • B41P2219/51—Converting existing presses to foil printing presses

Definitions

  • the present invention relates to a security printing machine on securities, in particular banknotes, comprising a paper feed device, especially in the form of sheets, a paper transport device and a printing unit. application of optically variable images supported by at least one ribbon which is brought into contact with the paper such that these images are applied to determined locations of the paper corresponding to the printing of securities.
  • optically variable images in the form of film, on bank cards and also on securities, in particular banknotes in order to avoid their falsification, in particular their reproduction by the use of photocopiers whose quality of reproduction is more and more perfected.
  • optically variable images comprising either a hologram or a kinegram have the characteristic of changing their appearance depending on the angle from which they are viewed. The application of this image can be done hot, for example on credit cards, or cold, in particular on banknotes.
  • a device as mentioned above is known from the publication EP-A 0441596 which describes in particular a method and a device for the cold application of such an image on a banknote.
  • the paper in the form of sheets, after having undergone a selective application of an ink adhesive at determined locations corresponding to the printing of banknotes, and after having passed in front of a device for drying by ultraviolet radiation, pass into an optically variable image application unit, carried by a ribbon, provided for each printing column and which is unwound between a unwinding reel mounted in a first cassette and a winding reel mounted in a second cassette.
  • the path between the two coils comprises, in addition to rollers and guide and tension rollers, a cylinder provided with circumferential grooves, interrupted by bridges, said strip passing through said grooves.
  • the sheets to be processed pass between said cylinder and a pressure cylinder and the transfer of an image takes place each time a bridge passes over the printing cylinder.
  • the whole is arranged such that the path of the ribbon is carried out in the same direction as that of the sheets, but with a variable drive.
  • WO 90/14953 Also known from publication WO 90/14953 is a device for transferring a thin sheet of a ribbon onto a strip of paper by passing the ribbon between this strip and a heating matrix which is mounted on a rotary cylinder.
  • This cylinder which carries the one or more heating dies is driven in synchronism with said strip, and the ribbon with the thin sheets to be transferred move in a direction generally transverse to that of the strip; said tape runs between an unwinding cassette and a winding cassette, the two cassettes being fixed laterally on either side of the rotary cylinder.
  • the paper strip must be pressed around a large part of the periphery of the cylinder so that the heating time is sufficient and allows the adhesion of the thin sheet on the paper strip.
  • This pressure is achieved by means of at least two pressure bands which apply the paper band against half of the periphery of the cylinder and which simultaneously drive said cylinder in rotation.
  • the present invention aims to provide a machine which facilitates the image application system, the path of the ribbon and its replacement and which has a simpler structure ensuring both a good register.
  • the ribbon is mounted in a single cassette comprising the two coils arranged to simultaneously apply all images on a print row of paper.
  • the applicator cylinder has several adjacent sectors each equipped with a cassette, which makes it possible to apply the images of several rows during a rotation of the applicator cylinder.
  • this allows, with each rotation of the applicator cylinder, to apply the images of several rows of the same sheet.
  • FIG. 1 represents a general view of a first embodiment of the security printing machine according to the invention.
  • Figure 2 shows an end view of the applicator cylinder.
  • Figure 3 is a side view of Figure 2.
  • Figure 4 is an enlarged view of an application sector of the applicator cylinder.
  • FIG. 5 represents a general view of a second embodiment of the machine.
  • FIG. 6 is a view of the application unit of the machine according to FIG. 5.
  • Figure 7 shows a general view of a third machine execution form.
  • the security printing machine comprises a device 1 for supplying sheets of security paper, in particular banknotes, this device consisting of a feeder. These sheets, which may already be partially printed or not, are fed one by one through this feeder and a margin table 2 to a unit 3 for applying a liquid adhesive so that the sheet receives an imprint of adhesive at minus a specific location for each ticket impression, or future impression.
  • the prints provided on each sheet are arranged in N columns of X rows; by column is meant the series of prints in the direction of transport of the sheets and by row the series of prints in the direction perpendicular to the direction of transport of the sheets. According to the example considered, N is equal to four while X is equal to ten.
  • This unit 3 is therefore designed in the manner of an inking unit, with a reservoir 4 in which is half-immersed a roller 5 which applies said liquid adhesive to a template carrying roller 6 which selectively transfers the impressions of adhesive at the determined locations, said sheet passing between said template carrying roller 6 and a printing cylinder 7.
  • this unit 3 also includes a device for applying a second security means, in particular a typographic unit 8 making it possible to print a security image, in a manner known per se.
  • the adhesive application unit 3, 4, 5 could also be of another type, for example analogous to a typographic unit such as unit 8.
  • the sheet is then taken up by a transfer chain 9 which passes it in front of ultraviolet lamps 10 serving as a catalyst for the imprints of adhesive, activating the adhesive.
  • the time for the sheet to pass between the lamps 10 and the application of the image must be between 3 and 10 s to avoid polymerization of the adhesive.
  • the sheet then passes through an optically variable image application unit 19 in the form of a film having, for example, the appearance of a pellet and supported by a ribbon 13.
  • this unit 19 comprises two applicator cylinders 11, 11 'mounted in series, each cooperating with a pressure cylinder 20, respectively 20' and a transfer cylinder 21.
  • the contact between the sheets to be treated and the applicator cylinder takes place only along a contact line whose width corresponds to the width of a row of images to be transferred and the sheets are guided by the pressure cylinder 20 around which the sheets are guided over part of the periphery.
  • Said pressure cylinder presses the sheets against the ribbon 13 installed at the periphery of the cylinder 20 and carrying the images so that they are transferred.
  • the image application device 12 will now be described in more detail with reference to FIGS. 2 to 4.
  • the applicator cylinder 11 is designed to simultaneously apply a series of X images 12, for example four, on the adhesive prints of the sheet, that is to say on all the prints belonging to the same printing row. Said images 12 are therefore placed on the ribbon 13 at well-defined distances so that the image is applied to the sheets in the desired register.
  • the adhesion between the images and the ribbon is carried out, for example, by wax.
  • the ribbon 13 is itself mounted in a rigid cassette 14 comprising two coils 15, 15 'between which it takes place and the ribbon 13 is driven by a servo motor 16 also used for registering images 12
  • the direction of unwinding of the ribbon 13 between the two reels of the cassette 14 takes place parallel to the axis of said cylinder 11, therefore perpendicular to the movement of the sheets which pass between the applicator cylinder 11 and the pressure cylinder 20.
  • the supply wires of, respectively, of the servo-motor pass inside the hollow axis 11a of, respectively of, the cylinder 11, as shown in dashed lines in FIG. 3.
  • the useful length of the cassette corresponds to the length of the applicator cylinder 11 which, itself, corresponds to the width of the sheets to be printed, that is to say their dimension considered in the direction perpendicular to their movement.
  • the cassettes 14 were mounted in sectors distributed in groups of five on each cylinder 11, 11 ', thus the first cylinder 11 applies the images of the odd rows of the sheet while the images of the even rows are applied by the second cylinder 11', this in order to avoid a too tight arrangement of areas.
  • the distribution of the cassettes between the two cylinders 11, 11 ′ can be arbitrary provided that the sum of the number of cassettes of the first cylinder and the number of cassettes of the second cylinder is equal to the number X of printing rows per sheet.
  • each applicator cylinder 11, 11 ′ comprises two groups of five cassettes 14 distributed over two diametrically opposite sectors, a complete rotation of the cylinders 11, 11 ′ therefore making it possible to apply all of the images on two consecutive sheets.
  • the cassettes 14 are fitted onto the cylinder 11 (FIG. 3) so that the free part between the two coils 15, 15 'is applied along a generatrix of the applicator cylinder 11.
  • the cassette 14 is furthermore provided with screws -with respect to said generatrices, of buffers 18 over which passes the ribbon 13 which unwinds from the reel 15 while being guided by tension rollers 23.
  • These buffers 18 are axially adjustable as a function of the spacing between two successive images and therefore the number of prints expected per row on the sheet, and also adjustable in the radial direction; these pads therefore allow on the one hand the positioning of the images and on the other hand to ensure sufficient pressure of the image 12 on the sheet during application.
  • Tension rollers 17 ensure the tension of the ribbon 13 between two pads 18, as well as also seen in Figure 4.
  • the length of the tape 13 between the two reels 15, 15 ′ is a function of the size of the images 12 applied, the number of pads 18 per tape and the distance between two pads 18.
  • the cassettes are prepared beforehand according to the characteristics of the sheets to be printed. For example if, as in the example shown, the sheet to be printed has ten rows of four columns for printing banknotes, the cassette is designed to simultaneously apply four images on the same row during the advancement of the sheets.
  • the applicator cylinders rotate continuously with the machine and the relative speeds of the cylinders are such that the first applicator cylinder 11 deposits the images 12 on the imprints of every other row on the sheet which advances, the intermediate rows of images being deposited by the second cylinder 11 '.
  • the pressure force between the applicator cylinder 11, 11 'and the pressure cylinder 20, 20' is relatively low, for example of the order of 300 gr / cm2, the adhesion by the wax of image 12 on the ribbon 13 itself is not very high.
  • the unwinding of the ribbon of each cassette is carried out by a servo-motor 16, all of these being connected to the center of the cylinder 11 and passing through the axis.
  • the servo motors 16 are actuated intermittently to unwind the tape between two applications while all the other elements of the machine are working continuously.
  • the sector of the applicator cylinder 11 is in position application, that is to say facing the row of adhesive imprint on the sheet, the tape 13, with the images 12 are stationary, the servomotor 16 only serving only to keep the register.
  • the servo motor is actuated to unwind a new portion of ribbon 13 with new images.
  • the sheets are taken up by an output chain 22 which routes them to the other printing steps.
  • the application of the optically variable film images is preferably carried out before the tickets are printed on the sheet, so that the said image can itself at least partially receive an impression, which increases security.
  • FIG. 5 and 6 is shown an alternative embodiment of the machine showing a different arrangement of the various parts.
  • the sheets arriving from a feeding device 101 are taken by a printing cylinder 107 on which they receive, at predetermined locations, impressions of adhesive coming from the reservoir 104, by means of a template roller 106. They then pass directly on a transfer chain 109 making them pass vertically in front of an ultraviolet lamp 110 and then routing them to the unit 119 for applying the images.
  • This unit 119 comprises, unlike the previous example, a single pressure cylinder 120 cooperating directly with two applicator cylinders 111, 111 '.
  • the cylinders 111, 111 ' are each provided with ten cassettes 140 distributed over two sectors and act alternately on the sheet which passes between them and the pressure cylinder 120.
  • FIG. 7 represents a third embodiment of the machine which differs from the installation according to FIG. 1 only by the installation for transferring the sheets which comprises, not a transfer chain 9, but transfer rollers, to namely two transport rollers 24 arranged on either side of a drying cylinder 25 around the periphery of which are the ultraviolet lamps 10. All the other elements are not re-described because they bear the same references as those of the first form of execution and correspond to them.
  • the adhesive application unit 3 is simplified in this case because it does not include a typographic unit.
  • the invention is not limited to the embodiments described and other variants could be envisaged without departing from the spirit of the invention, in particular as regards the sheet transfer device, the adhesive application device, the structure of the cassettes and their installation in the applicator cylinder.
  • the arrangement of the cassettes on the applicator cylinder could also be different, in particular, instead of being mounted inside the sector, the cassette could protrude laterally from it on one or both sides of the cylinder, and / or protrude in the diametrical direction, that is to say that the cassette exceeds in the radial direction the line of the axis of the cylinder.
  • the device which has just been described is also applicable for a web printing machine.

Landscapes

  • Rotary Presses (AREA)
  • Printing Methods (AREA)
  • Indicating And Signalling Devices For Elevators (AREA)
  • Dot-Matrix Printers And Others (AREA)
  • Cameras Adapted For Combination With Other Photographic Or Optical Apparatuses (AREA)
  • Making Paper Articles (AREA)
  • Handling Of Sheets (AREA)
  • Control Of Electric Motors In General (AREA)
  • Devices For Checking Fares Or Tickets At Control Points (AREA)

Abstract

Machine for security printing on security papers, particularly bank notes, comprising a paper-feed device (1), a paper-transportation device and a unit (19) for applying optically variable images supplied by at least one tape which is brought into contact with the paper such that these images are applied at specific locations on the paper corresponding to printing (impressions) on security papers. The application unit (19) includes at least one activator roll (11) interacting with a pressure roll (20) and between which the paper passes through. The tape is mounted between two reels which are arranged in a sector of the applicator roll (11) and the tape passes along a generatrix of the said applicator roll, perpendicularly to the path of the paper, under the action of a servomotor acting intermittently at each application step. <IMAGE>

Description

La présente invention se rapporte à une machine d'impression de sécurité sur des papiers-valeurs, notamment des billets de banque, comportant un dispositif d'alimentation en papier, notamment sous forme de feuilles, un dispositif de transport du papier et une unité d'application d'images optiquement variables supportées par au moins un ruban qui est amené en contact avec le papier tel que ces images sont appliquées à des emplacements déterminés du papier correspondant aux impressions de papiers-valeurs.The present invention relates to a security printing machine on securities, in particular banknotes, comprising a paper feed device, especially in the form of sheets, a paper transport device and a printing unit. application of optically variable images supported by at least one ribbon which is brought into contact with the paper such that these images are applied to determined locations of the paper corresponding to the printing of securities.

Il est déjà connu d'incorporer comme zone de sécurité des images optiquement variables, sous forme de film, sur des cartes banquaires et également sur des papiers-valeurs, en particulier des billets de banque afin d'éviter la falsification de ceux-ci, notamment leur reproduction par l'utilisation de photocopieuses dont la qualité de reproduction est de plus en plus perfectionnée. Ces images optiquement variables comportant soit un hologramme soit un kinégramme, ont la caractéristique de changer d'aspect selon l'angle sous lequel on les regarde. L'application de cette image peut se faire à chaud, par exemple sur les cartes de crédit, ou à froid, en particulier sur les billets de banque.It is already known to incorporate as a safety zone optically variable images, in the form of film, on bank cards and also on securities, in particular banknotes in order to avoid their falsification, in particular their reproduction by the use of photocopiers whose quality of reproduction is more and more perfected. These optically variable images comprising either a hologram or a kinegram have the characteristic of changing their appearance depending on the angle from which they are viewed. The application of this image can be done hot, for example on credit cards, or cold, in particular on banknotes.

Un dispositif tel que mentionné ci-dessus est connu de la publication EP-A 0441596 qui décrit notamment un procédé et un dispositif pour l'application à froid d'une telle image sur un billet de banque. Selon ce dispositif, le papier, sous forme de feuilles, après avoir subi une application sélective d'une encre adhésive à des emplacements déterminés correspondant aux impressions des billets, et après avoir défilé devant un dispositif de séchage par radiations ultraviolettes, passent dans une unité d'application d'une image optiquement variable, portée par un ruban, prévu pour chaque colonne d'impression et qui est déroulé entre une bobine de déroulement montée dans une première cassette et une bobine d'enroulement montée dans une deuxième cassette. Le trajet entre les deux bobines comporte, outre des rouleaux et des galets de guidage et de tension, un cylindre pourvu de rainures circonférentielles, interrompues par des ponts, ledit ruban passant dans lesdites rainures. Les feuilles à traiter défilent entre ledit cylindre et un cylindre de pression et le transfert d'une image a lieu chaque fois qu'un pont passe sur le cylindre d'impression. Le tout est agencé tel que le trajet du ruban s'effectue dans le même sens que celui des feuilles, mais avec un entraînement variable.A device as mentioned above is known from the publication EP-A 0441596 which describes in particular a method and a device for the cold application of such an image on a banknote. According to this device, the paper, in the form of sheets, after having undergone a selective application of an ink adhesive at determined locations corresponding to the printing of banknotes, and after having passed in front of a device for drying by ultraviolet radiation, pass into an optically variable image application unit, carried by a ribbon, provided for each printing column and which is unwound between a unwinding reel mounted in a first cassette and a winding reel mounted in a second cassette. The path between the two coils comprises, in addition to rollers and guide and tension rollers, a cylinder provided with circumferential grooves, interrupted by bridges, said strip passing through said grooves. The sheets to be processed pass between said cylinder and a pressure cylinder and the transfer of an image takes place each time a bridge passes over the printing cylinder. The whole is arranged such that the path of the ribbon is carried out in the same direction as that of the sheets, but with a variable drive.

On connaît aussi de la publication WO 90/14953 un dispositif pour transférer une feuille mince d'un ruban sur une bande de papier en faisant passer le ruban entre cette bande et une matrice chauffante qui est montée sur un cylindre rotatif. Ce cylindre qui porte la ou plusieurs matrices chauffantes est entraîné en synchronisme avec ladite bande, et le ruban avec les feuilles minces à transférer se déplacent dans une direction généralement transversale à celle de la bande; ledit ruban défile entre une cassette de déroulement et une cassette d'enroulement, les deux cassettes étant fixées latéralement de part et d'autre du cylindre rotatif. Dans cette installation, la bande de papier doit être pressée autour d'une grande partie de la périphérie du cylindre pour que le temps de chauffage soit suffisant et permette l'adhésion de la feuille mince sur la bande de papier. Cette pression est réalisée par l'intermédiaire d'au moins deux bandes de pression qui appliquent la bande de papier contre la moitié de la périphérie du cylindre et qui simultanément entraînent ledit cylindre en rotation.Also known from publication WO 90/14953 is a device for transferring a thin sheet of a ribbon onto a strip of paper by passing the ribbon between this strip and a heating matrix which is mounted on a rotary cylinder. This cylinder which carries the one or more heating dies is driven in synchronism with said strip, and the ribbon with the thin sheets to be transferred move in a direction generally transverse to that of the strip; said tape runs between an unwinding cassette and a winding cassette, the two cassettes being fixed laterally on either side of the rotary cylinder. In this installation, the paper strip must be pressed around a large part of the periphery of the cylinder so that the heating time is sufficient and allows the adhesion of the thin sheet on the paper strip. This pressure is achieved by means of at least two pressure bands which apply the paper band against half of the periphery of the cylinder and which simultaneously drive said cylinder in rotation.

La présente invention a pour but de proposer une machine qui facilite le système d'application des images, le trajet du ruban et son remplacement et qui a une structure plus simple assurant à la fois un bon registre.The present invention aims to provide a machine which facilitates the image application system, the path of the ribbon and its replacement and which has a simpler structure ensuring both a good register.

A cet effet la machine selon l'invention est caractérisée par la clause caractérisante de la revendication 1.To this end, the machine according to the invention is characterized by the characterizing clause of claim 1.

Les avantages de cette machine par rapport aux dispositifs connus sont qu'une fois que l'image a été appliquée sur le papier, le cylindre applicateur continuant à tourner, le ruban dont le trajet est perpendiculaire au trajet du papier, est libéré du cylindre de pression et peut être avancé et ajusté en position voulue pour la prochaine application. On dispose donc du temps d'une rotation complète du cylindre applicateur pour ajuster une nouvelle portion du ruban, ce qui est largement suffisant pour assurer un registre parfait. En outre, le système de transport du ruban porteur des images étant intégré dans le cylindre applicateur permet une configuration compacte de l'ensemble.The advantages of this machine compared to known devices are that once the image has been applied to the paper, the applicator cylinder continuing to rotate, the ribbon, the path of which is perpendicular to the path of the paper, is released from the cylinder. pressure and can be advanced and adjusted to the desired position for the next application. There is therefore time for a complete rotation of the applicator cylinder to adjust a new portion of the tape, which is more than enough to ensure perfect register. In addition, the system for transporting the image-carrying tape being integrated into the applicator cylinder allows a compact configuration of the assembly.

Selon une forme préférée de l'invention, le ruban est monté dans une seule cassette comprenant les deux bobines agencées pour appliquer simultanément toutes les images sur une rangée d'impression du papier.According to a preferred form of the invention, the ribbon is mounted in a single cassette comprising the two coils arranged to simultaneously apply all images on a print row of paper.

De préférence, le cylindre applicateur comporte plusieurs secteurs adjacents équipés chacun d'une cassette, ce qui permet d'appliquer les images de plusieurs rangées lors d'une rotation du cylindre applicateur. Dans le cas préféré d'utilisation du papier sous forme de feuilles cela permet, à chaque rotation du cylindre applicateur, d'appliquer les images de plusieurs rangées d'une même feuille.Preferably, the applicator cylinder has several adjacent sectors each equipped with a cassette, which makes it possible to apply the images of several rows during a rotation of the applicator cylinder. In the preferred case of using paper in the form of sheets, this allows, with each rotation of the applicator cylinder, to apply the images of several rows of the same sheet.

L'invention sera décrite, à titre d'exemple non limitatif pour le traitement du papier sous forme de feuilles, en référence aux dessins annexés sur lesquels:The invention will be described, by way of nonlimiting example for the treatment of paper in the form of sheets, with reference to the appended drawings in which:

La figure 1 représente une vue générale d'une première forme d'éxécution de la machine d'impression de sécurité selon l'invention.FIG. 1 represents a general view of a first embodiment of the security printing machine according to the invention.

La figure 2 représente une vue en bout du cylindre applicateur.Figure 2 shows an end view of the applicator cylinder.

La figure 3 est une vue latérale de la figure 2.Figure 3 is a side view of Figure 2.

La figure 4 est une vue agrandie d'un secteur d'application du cylindre applicateur.Figure 4 is an enlarged view of an application sector of the applicator cylinder.

La figure 5 représente une vue générale d'une deuxième forme d'éxécution de la machine.FIG. 5 represents a general view of a second embodiment of the machine.

La figure 6 est une vue de l'unité d'application de la machine selon la figure 5.FIG. 6 is a view of the application unit of the machine according to FIG. 5.

La figure 7 représente une vue générale d'une troisième forme d'éxécution de la machine.Figure 7 shows a general view of a third machine execution form.

En se référant à la figure 1, la machine d'impression de sécurité comprend un dispositif d'alimentation 1 en feuilles de papier-valeur, en particulier des billets de banque, ce dispositif étant constitué d'un margeur. Ces feuilles, qui peuvent être déjà partiellement imprimées ou non, sont amenées une à une par ce margeur et une table de marge 2 à une unité 3 d'application d'un adhésif liquide pour que la feuille reçoive une empreinte d'adhésif à au moins un emplacement déterminé de chaque impression, ou future impression, de billet. Les impressions prévues sur chaque feuille sont arrangées en N colonnes de X rangées; on entend par colonne la suite d'impressions dans le sens du transport des feuilles et par rangée la suite d'impressions dans le sens perpendiculaire au sens du transport des feuilles. Selon l'exemple considéré, N est égal à quatre tandis que X est égal à dix. Cette unité 3 est donc conçue à la manière d'une unité d'encrage, avec un réservoir 4 dans lequel est à demi immergé un rouleau 5 qui applique ledit adhésif liquide à un rouleau porteur de chablon 6 lequel transfert sélectivement sur la feuille les empreintes d'adhésif aux emplacements déterminés, ladite feuille passant entre ledit rouleau porteur de chablon 6 et un cylindre d'impression 7.Referring to FIG. 1, the security printing machine comprises a device 1 for supplying sheets of security paper, in particular banknotes, this device consisting of a feeder. These sheets, which may already be partially printed or not, are fed one by one through this feeder and a margin table 2 to a unit 3 for applying a liquid adhesive so that the sheet receives an imprint of adhesive at minus a specific location for each ticket impression, or future impression. The prints provided on each sheet are arranged in N columns of X rows; by column is meant the series of prints in the direction of transport of the sheets and by row the series of prints in the direction perpendicular to the direction of transport of the sheets. According to the example considered, N is equal to four while X is equal to ten. This unit 3 is therefore designed in the manner of an inking unit, with a reservoir 4 in which is half-immersed a roller 5 which applies said liquid adhesive to a template carrying roller 6 which selectively transfers the impressions of adhesive at the determined locations, said sheet passing between said template carrying roller 6 and a printing cylinder 7.

Dans la forme d'éxécution représentée, cette unité 3 comporte également un dispositif d'application d'un deuxième moyen de sécurité, notamment une unité typographique 8 permettant d'imprimer une image de sécurité, d'une manière connue en soi.In the embodiment shown, this unit 3 also includes a device for applying a second security means, in particular a typographic unit 8 making it possible to print a security image, in a manner known per se.

L'unité d'application de l'adhésif 3, 4, 5 pourrait être également d'un autre type, par exemple analogue à une unité typographique telle que l'unité 8.The adhesive application unit 3, 4, 5 could also be of another type, for example analogous to a typographic unit such as unit 8.

La feuille est ensuite reprise par une chaîne de transfert 9 qui la fait passer devant des lampes à ultra-violet 10 servant de catalyseur pour les empreintes d'adhésif, activant l'adhésif. Le temps de passage de la feuille entre les lampes 10 et l'application de l'image doit être compris entre 3 et 10 s pour éviter la polymérisation de l'adhésif.The sheet is then taken up by a transfer chain 9 which passes it in front of ultraviolet lamps 10 serving as a catalyst for the imprints of adhesive, activating the adhesive. The time for the sheet to pass between the lamps 10 and the application of the image must be between 3 and 10 s to avoid polymerization of the adhesive.

La feuille passe ensuite dans une unité 19 d'application d'une image 12 optiquement variable sous forme de film ayant, par exemple, l'apparence d'une pastille et supporté par un ruban 13.The sheet then passes through an optically variable image application unit 19 in the form of a film having, for example, the appearance of a pellet and supported by a ribbon 13.

Dans l'exemple représenté sur la figure 1, cette unité 19 comporte deux cylindres applicateurs 11, 11' montés en série, coopérant chacun avec un cylindre de pression 20, respectivement 20' et un cylindre de transfert 21.In the example shown in FIG. 1, this unit 19 comprises two applicator cylinders 11, 11 'mounted in series, each cooperating with a pressure cylinder 20, respectively 20' and a transfer cylinder 21.

Le contact entre les feuilles à traiter et le cylindre applicateur se fait seulement suivant une ligne de contact dont la largeur correspond à la largeur d'une rangée d'images à transférer et le guidage des feuilles est assuré par le cylindre de pression 20 autour duquel les feuilles sont guidées sur une partie de la périphérie. Ledit cylindre de pression presse les feuilles contre le ruban 13 installé à la périphérie du cylindre 20 et portant les images pour que celles-ci soient transférées.The contact between the sheets to be treated and the applicator cylinder takes place only along a contact line whose width corresponds to the width of a row of images to be transferred and the sheets are guided by the pressure cylinder 20 around which the sheets are guided over part of the periphery. Said pressure cylinder presses the sheets against the ribbon 13 installed at the periphery of the cylinder 20 and carrying the images so that they are transferred.

Le dispositif d'application des images 12 va être maintenant décrit plus en détail en référence aux figures 2 à 4. Le cylindre applicateur 11 est conçu pour appliquer simultanément une série de X images 12, par exemple quatre, sur les empreintes d'adhésif de la feuille, c'est à dire sur toutes les impressions appartenant à une même rangée d'impression. Lesdites images 12 sont donc disposées sur le ruban 13 à des distances bien définies pour que l'image soit appliquée sur les feuilles dans le registre voulu. L'adhésion entre les images et le ruban est réalisée, par exemple, par de la cire. Le ruban 13 est lui-même monté dans une cassette rigide 14 comprenant deux bobines 15, 15' entre lesquelles il se déroule et l'entraînement du ruban 13 est assuré par un servo-moteur 16 servant également à la mise en registre des images 12. Le sens de déroulement du ruban 13 entre les deux bobines de la cassette 14 s'effectue parallèlement à l'axe dudit cylindre 11, donc perpendiculairement au déplacement des feuilles qui passent entre le cylindre applicateur 11 et le cylindre de pression 20.The image application device 12 will now be described in more detail with reference to FIGS. 2 to 4. The applicator cylinder 11 is designed to simultaneously apply a series of X images 12, for example four, on the adhesive prints of the sheet, that is to say on all the prints belonging to the same printing row. Said images 12 are therefore placed on the ribbon 13 at well-defined distances so that the image is applied to the sheets in the desired register. The adhesion between the images and the ribbon is carried out, for example, by wax. The ribbon 13 is itself mounted in a rigid cassette 14 comprising two coils 15, 15 'between which it takes place and the ribbon 13 is driven by a servo motor 16 also used for registering images 12 The direction of unwinding of the ribbon 13 between the two reels of the cassette 14 takes place parallel to the axis of said cylinder 11, therefore perpendicular to the movement of the sheets which pass between the applicator cylinder 11 and the pressure cylinder 20.

On peut également prévoir un deuxième servo-moteur 16' pour l'entraînement de l'autre bobine afin de mieux régler le maintien et la tension du ruban. Les fils d'alimentation du, respectivement des, servo-moteur passent à l'intérieur de l'axe creux 11a du, respectivement des, cylindre 11, comme montré en traits mixtes figure 3.One can also provide a second servo motor 16 'for driving the other coil in order to better adjust the maintenance and the tension of the ribbon. The supply wires of, respectively, of the servo-motor pass inside the hollow axis 11a of, respectively of, the cylinder 11, as shown in dashed lines in FIG. 3.

La longueur utile de la cassette correspond à la longueur du cylindre applicateur 11 qui, elle-même, correspond à la largeur des feuilles à imprimer, c'est à dire à leur dimension considérée dans le sens perpendiculaire à leur déplacement.The useful length of the cassette corresponds to the length of the applicator cylinder 11 which, itself, corresponds to the width of the sheets to be printed, that is to say their dimension considered in the direction perpendicular to their movement.

Pour appliquer les images 12 sur toutes les impressions d'une même colonne d'une feuille (dix dans l'exemple considéré) on a monté les cassettes 14 dans des secteurs répartis par groupes de cinq sur chaque cylindre 11, 11', ainsi le premier cylindre 11 applique les images des rangées impaires de la feuille tandis que les images des rangées paires sont appliquées par le deuxième cylindre 11', ceci afin d'éviter un arrangement trop serré des secteurs.To apply the images 12 on all the prints of the same column of a sheet (ten in the example considered), the cassettes 14 were mounted in sectors distributed in groups of five on each cylinder 11, 11 ', thus the first cylinder 11 applies the images of the odd rows of the sheet while the images of the even rows are applied by the second cylinder 11', this in order to avoid a too tight arrangement of areas.

La répartition des cassettes entre les deux cylindres 11, 11' peut être quelconque pourvu que la somme du nombre de cassettes du premier cylindre et du nombre de cassettes du deuxième cylindre soit égale au nombre X de rangées d'impression par feuille.The distribution of the cassettes between the two cylinders 11, 11 ′ can be arbitrary provided that the sum of the number of cassettes of the first cylinder and the number of cassettes of the second cylinder is equal to the number X of printing rows per sheet.

Dans l'exemple représenté sur la figure 2, chaque cylindre applicateur 11, 11' comporte deux groupes de cinq cassettes 14 répartis sur deux secteurs diamétralement opposés, une rotation complète des cylindres 11, 11' permettant dès lors d'appliquer la totalité des images sur deux feuilles consécutives. Les cassettes 14 sont emboîtées sur le cylindre 11 (Figure 3) de manière que la partie libre entre les deux bobines 15, 15' soit appliquée le long d'une génératrice du cylindre applicateur 11. La cassette 14 est en outre munie, en vis-à-vis desdites génératrices, de tampons 18 sur lesquels passe le ruban 13 qui se déroule de la bobine 15 en étant guidé par des rouleaux tendeurs 23. Ces tampons 18 sont ajustables axialement en fonction de l'écartement entre deux images successives et donc du nombre d'impressions prévues par rangée sur la feuille, et aussi ajustables dans le sens radial; ces tampons permettent donc d'une part le positionnement des images et d'autre part d'assurer une pression suffisante de l'image 12 sur la feuille lors de l'application. Des rouleaux tendeurs 17 assurent la tension du ruban 13 entre deux tampons 18, ainsi qu'on le voit également sur la figure 4.In the example shown in FIG. 2, each applicator cylinder 11, 11 ′ comprises two groups of five cassettes 14 distributed over two diametrically opposite sectors, a complete rotation of the cylinders 11, 11 ′ therefore making it possible to apply all of the images on two consecutive sheets. The cassettes 14 are fitted onto the cylinder 11 (FIG. 3) so that the free part between the two coils 15, 15 'is applied along a generatrix of the applicator cylinder 11. The cassette 14 is furthermore provided with screws -with respect to said generatrices, of buffers 18 over which passes the ribbon 13 which unwinds from the reel 15 while being guided by tension rollers 23. These buffers 18 are axially adjustable as a function of the spacing between two successive images and therefore the number of prints expected per row on the sheet, and also adjustable in the radial direction; these pads therefore allow on the one hand the positioning of the images and on the other hand to ensure sufficient pressure of the image 12 on the sheet during application. Tension rollers 17 ensure the tension of the ribbon 13 between two pads 18, as well as also seen in Figure 4.

La longueur du ruban 13 entre les deux bobines 15, 15' est une fonction de la taille des images 12 appliquées, du nombre de tampons 18 par ruban et de la distance entre deux tampons 18.The length of the tape 13 between the two reels 15, 15 ′ is a function of the size of the images 12 applied, the number of pads 18 per tape and the distance between two pads 18.

Les cassettes sont préalablement préparées en fonction des caractéristiques des feuilles à imprimer. Par exemple si, comme dans l'exemple représenté, la feuille à imprimer comporte dix rangées de quatre colonnes d'impression de billets de banque, la cassette est prévue pour appliquer simultanément quatre images sur la même rangée lors de l'avancement des feuilles.The cassettes are prepared beforehand according to the characteristics of the sheets to be printed. For example if, as in the example shown, the sheet to be printed has ten rows of four columns for printing banknotes, the cassette is designed to simultaneously apply four images on the same row during the advancement of the sheets.

Les cylindres applicateurs tournent en continu avec la machine et les vitesses relatives des cylindres sont telles que le premier cylindre applicateur 11 dépose les images 12 sur les empreintes d'une rangée sur deux sur la feuille qui avance, les rangées intermédiaires d'images étant déposées par le deuxième cylindre 11'. La force de pression entre le cylindre applicateur 11, 11' et le cylindre de pression 20, 20' est relativement faible, par exemple de l'ordre de 300 gr/cm², l'adhésion par la cire de l'image 12 sur le ruban 13 n'étant elle-même pas très élevée.The applicator cylinders rotate continuously with the machine and the relative speeds of the cylinders are such that the first applicator cylinder 11 deposits the images 12 on the imprints of every other row on the sheet which advances, the intermediate rows of images being deposited by the second cylinder 11 '. The pressure force between the applicator cylinder 11, 11 'and the pressure cylinder 20, 20' is relatively low, for example of the order of 300 gr / cm², the adhesion by the wax of image 12 on the ribbon 13 itself is not very high.

Comme déjà mentionné, le déroulement du ruban de chaque cassette est réalisé par un servo-moteur 16, l'ensemble de ceux-ci étant relié au centre du cylindre 11 et passant à travers l'axe. Les servo-moteurs 16 sont actionnés par intermittence pour dérouler le ruban entre deux applications alors que tous les autres éléments de la machine travaillent en continu. Quand le secteur du cylindre applicateur 11 est en position d'application, c'est à dire en regard de la rangée d'empreinte d'adhésif sur la feuille, le ruban 13, avec les images 12 sont stationnaires, le servo-moteur 16 ne servant seulement qu'à conserver le registre. Une fois la rangée de N images déposée sur la feuille, alors que le cylindre applicateur 11 continue sa rotation, le servo-moteur est actionné pour dérouler une nouvelle portion de ruban 13 avec de nouvelles images. Pendant une rotation complète du cylindre applicateur 11, on dispose d'un temps suffisant pour la mise en action du servo-moteur en vue du déroulement de la nouvelle portion de ruban et la mise en registre des nouvelles images.As already mentioned, the unwinding of the ribbon of each cassette is carried out by a servo-motor 16, all of these being connected to the center of the cylinder 11 and passing through the axis. The servo motors 16 are actuated intermittently to unwind the tape between two applications while all the other elements of the machine are working continuously. When the sector of the applicator cylinder 11 is in position application, that is to say facing the row of adhesive imprint on the sheet, the tape 13, with the images 12 are stationary, the servomotor 16 only serving only to keep the register. Once the row of N images deposited on the sheet, while the applicator cylinder 11 continues to rotate, the servo motor is actuated to unwind a new portion of ribbon 13 with new images. During a complete rotation of the applicator cylinder 11, there is sufficient time for the actuation of the servomotor for the unwinding of the new portion of tape and the recording of the new images.

A la sortie de l'unité 19 d'application des images, les feuilles sont reprises par une chaîne de sortie 22 qui les achemine vers les autres pas d'impression. L'application des images en film optiquement variable est effectuée préférablement avant l'impression des billets sur la feuille, de sorte que ladite image peut elle-même recevoir au moins partiellement une impression, ce qui accroît la sécurité.Leaving the image application unit 19, the sheets are taken up by an output chain 22 which routes them to the other printing steps. The application of the optically variable film images is preferably carried out before the tickets are printed on the sheet, so that the said image can itself at least partially receive an impression, which increases security.

Sur les figures 5 et 6 est représentée une variante d'éxécution de la machine montrant un agencement différent des diverses parties. Les feuilles arrivant d'un dispositif d'alimentation 101 sont prises par un cylindre d'impression 107 sur lequel elles reçoivent aux emplacements prédéterminés des empreintes d'adhésif venant du réservoir 104, par l'intermédiaire d'un rouleau à chablon 106. Elles passent ensuite directement sur une chaîne de transfert 109 les faisant défiler verticalement devant une lampe à ultra-violet 110 et les acheminant ensuite à l'unité 119 d'application des images. Cette unité 119 comprend, contrairement à l'exemple précédent, un seul cylindre de pression 120 coopérant directement avec deux cylindres applicateurs 111, 111'. Les cylindres 111, 111' sont munis chacun de dix cassettes 140 réparties sur deux secteurs et agissent alternativement sur la feuille qui passe entre eux et le cylindre de pression 120.In Figures 5 and 6 is shown an alternative embodiment of the machine showing a different arrangement of the various parts. The sheets arriving from a feeding device 101 are taken by a printing cylinder 107 on which they receive, at predetermined locations, impressions of adhesive coming from the reservoir 104, by means of a template roller 106. They then pass directly on a transfer chain 109 making them pass vertically in front of an ultraviolet lamp 110 and then routing them to the unit 119 for applying the images. This unit 119 comprises, unlike the previous example, a single pressure cylinder 120 cooperating directly with two applicator cylinders 111, 111 '. The cylinders 111, 111 'are each provided with ten cassettes 140 distributed over two sectors and act alternately on the sheet which passes between them and the pressure cylinder 120.

La figure 7 représente une troisième forme d'éxécution de la machine qui diffère de l'installation selon la figure 1 seulement par l'installation de transfert des feuilles qui comprend, non pas une chaîne de transfert 9, mais des rouleaux de transfert, à savoir deux rouleaux de transport 24 disposés de part et d'autre d'un cylindre de séchage 25 autour de la périphérie duquel se trouvent les lampes à ultra-violet 10. Tous les autres éléments ne sont pas redécrits car ils portent les mêmes références que ceux de la première forme d'éxécution et leur correspondent. L'unité 3 d'application de l'adhésif est dans ce cas simplifiée car elle ne comporte pas d'unité typographique.FIG. 7 represents a third embodiment of the machine which differs from the installation according to FIG. 1 only by the installation for transferring the sheets which comprises, not a transfer chain 9, but transfer rollers, to namely two transport rollers 24 arranged on either side of a drying cylinder 25 around the periphery of which are the ultraviolet lamps 10. All the other elements are not re-described because they bear the same references as those of the first form of execution and correspond to them. The adhesive application unit 3 is simplified in this case because it does not include a typographic unit.

Il pourrait également être envisagé d'utiliser un adhésif à deux composants, l'un étant appliqué par l'unité d'application 3, comme décrit en relation avec la figure 1, l'autre se trouvant déjà appliqué sur le fond des images optiquement variables, les deux composants une fois pressés l'un contre l'autre devenant actifs comme les adhésifs à deux composants, ce qui éliminerait le poste de passage sous les ultra-violets.It could also be envisaged to use a two-component adhesive, one being applied by the application unit 3, as described in relation to FIG. 1, the other being already applied to the background of the images optically. variable, the two components once pressed against each other becoming active like two-component adhesives, which would eliminate the post of passage under ultraviolet.

L'invention n'est pas limitée aux formes d'éxécution décrites et d'autres variantes pourraient être envisagées sans sortir de l'esprit de l'invention, notamment en ce qui concerne le dispositif de transfert des feuilles, le dispositif d'application de l'adhésif, la structure des cassettes et leur installation dans le cylindre applicateur. La disposition des cassettes sur le cylindre applicateur pourrait également être différente, notamment, au lieu d'être montée à l'intérieur du secteur, la cassette pourrait dépasser latéralement de celui-ci d'un ou des deux côtés du cylindre, et/ou dépasser dans le sens diamétral, c'est-à-dire que la cassette dépasse dans le sens radial la ligne de l'axe du cylindre. Le dispositif qui vient d'être décrit est également applicable pour une machine d'impression à la bobine.The invention is not limited to the embodiments described and other variants could be envisaged without departing from the spirit of the invention, in particular as regards the sheet transfer device, the adhesive application device, the structure of the cassettes and their installation in the applicator cylinder. The arrangement of the cassettes on the applicator cylinder could also be different, in particular, instead of being mounted inside the sector, the cassette could protrude laterally from it on one or both sides of the cylinder, and / or protrude in the diametrical direction, that is to say that the cassette exceeds in the radial direction the line of the axis of the cylinder. The device which has just been described is also applicable for a web printing machine.

Claims (11)

Machine d'impression de sécurité sur des papiers-valeurs, notamment des billets de banque, comportant un dispositif d'alimentation en papier, notamment sous forme de feuilles (1), un dispositif de transport du papier et une unité d'application (19) d'images optiquement variables (12) supportées par au moins un ruban (13) qui est amené en contact avec le papier tel que ces images sont appliquées à des emplacements déterminés du papier correspondant aux impressions de papiers-valeurs, caractérisée en ce que l'unité d'application (19) comporte au moins un cylindre applicateur (11) coopérant avec un cylindre de pression (20) et entre lesquels le papier défile, que ledit ruban (13) est monté entre deux bobines (15, 15') fixées au cylindre applicateur (11) et que le ruban passe le long d'une génératrice dudit cylindre applicateur, perpendiculairement au trajet du papier, sous l'action d'un servo-moteur agissant par intermittence à chaque pas d'application.Security printing machine on securities, in particular banknotes, comprising a paper feed device, especially in the form of sheets (1), a paper transport device and an application unit (19 ) optically variable images (12) supported by at least one ribbon (13) which is brought into contact with the paper such that these images are applied to determined locations of the paper corresponding to the printing of securities, characterized in that the application unit (19) comprises at least one applicator cylinder (11) cooperating with a pressure cylinder (20) and between which the paper runs, that said strip (13) is mounted between two coils (15, 15 ' ) attached to the applicator cylinder (11) and that the ribbon passes along a generatrix of said applicator cylinder, perpendicular to the path of the paper, under the action of a servo motor acting intermittently at each application step. Machine selon la revendication 1, caractérisée en ce que ledit ruban (13) est monté dans une seule cassette (14) comprenant les deux bobines, au moins la plus grande partie de celle-ci étant disposée à l'intérieur dudit cylindre applicateur (11), préférablement dans un secteur de celui-ci, la longueur utile de la cassette correspondant à la longueur du cylindre applicateur (11) qui, elle-même, correspond à la largeur du papier à imprimer, c'est à dire à leur dimension considérée dans le sens perpendiculaire à leur déplacement.Machine according to claim 1, characterized in that said strip (13) is mounted in a single cassette (14) comprising the two coils, at least the major part of this being arranged inside said applicator cylinder (11 ), preferably in a sector thereof, the useful length of the cassette corresponding to the length of the applicator cylinder (11) which itself corresponds to the width of the paper to be printed, that is to say their size considered in the direction perpendicular to their displacement. Machine selon la revendication 2, caractérisée par le fait que la cassette (14) est disposée à l'intérieur d'un secteur du cylindre applicateur (11).Machine according to claim 2, characterized in that the cassette (14) is arranged inside a sector of the applicator cylinder (11). Machine selon la revendication 2, caractérisée par le fait que la plus grande partie de la cassette (14) est disposée à l'intérieur d'un secteur du cylindre applicateur (11) et dépasse dudit cylindre latéralement sur au moins un côté et/ou diamétralement.Machine according to claim 2, characterized in that the major part of the cassette (14) is arranged inside a sector of the applicator cylinder (11) and projects laterally from said cylinder on at least one side and / or diametrically. Machine selon l'une des revendications 2 à 4, caractérisée par le fait que le cylindre applicateur (11) comporte plusieurs secteurs adjacents équipés chacun d'une cassette (14).Machine according to one of claims 2 to 4, characterized in that the applicator cylinder (11) has several adjacent sectors each equipped with a cassette (14). Machine selon la revendication 5, caractérisée par le fait que, dans le cas d'utilisation du papier sous forme de feuilles sur lesquelles les impressions de papiers-valeurs sont arrangées en colonnes et rangées, le nombre de secteurs correspond au nombre de rangées d'impression par feuille.Machine according to Claim 5, characterized in that, in the case of the use of paper in the form of sheets on which the prints of securities are arranged in columns and rows, the number of sectors corresponds to the number of rows of sheet printing. Machine selon la revendication 6, caractérisée en ce qu'il est prévu deux cylindres applicateurs (11, 11') montés en série et agissant alternativement sur la même feuille, le nombre de secteurs et de cassettes de chaque cylindre étant tel que la somme des deux nombres est égale au nombre de rangées d'impressions par feuille.Machine according to claim 6, characterized in that two applicator cylinders (11, 11 ') mounted in series are provided and acting alternately on the same sheet, the number of sectors and cassettes of each cylinder being such that the sum of the two numbers equals the number of rows of prints per sheet. Machine selon la revendication 6, caractérisée en ce que les cassettes sont ajustées par paire dans des secteurs diamétralement opposés dudit cylindre applicateur (11) et appliquent alternativement après un-demi tour dudit cylindre applicateur une série d'images (12) sur une rangée d'impression de deux feuilles successives.Machine according to claim 6, characterized in that the cassettes are adjusted in pairs in diametrically opposite sectors of said applicator cylinder (11) and apply alternately after a half-turn of said applicator cylinder a series of images (12) on a row of print of two successive sheets. Machine selon la revendication 1, caractérisée par le fait qu'en amont de l'unité d'application (19) de l'image est prévue une unité d'application (3) d'empreintes d'adhésif sur le papier aux emplacements destinés à recevoir ladite image (12), le cas échéant, suivie d'un dispositif de séchage, notamment par ultra-violet.Machine according to claim 1, characterized in that upstream of the application unit (19) of the image is provided an application unit (3) of adhesive imprints on the paper at the locations intended receiving said image (12), if necessary, followed by a drying device, in particular by ultraviolet. Machine selon la revendication 9, caractérisée par le fait que l'adhésif est à deux composants, un composant étant appliqué par ladite unité d'application (3) tandis que le deuxième composant se trouve sur le fond de ladite image (12).Machine according to claim 9, characterized in that the adhesive is two-component, one component being applied by said application unit (3) while the second component is located on the bottom of said image (12). Machine selon l'une des revendications 9 ou 10, caractérisée par le fait que l'unité (3) d'application de l'adhésif comprend en outre une unité d'impression, notamment une unité d'impression typographique (8), permettant d'imprimer une image de sécurité, les deux unités ayant un cylindre d'impression (7) commun.Machine according to one of claims 9 or 10, characterized in that the adhesive application unit (3) further comprises a printing unit, in particular a letterpress printing unit (8), allowing to print a security image, the two units having a common printing cylinder (7).
EP94810178A 1993-05-17 1994-03-23 Image applying device in a security printing machine Expired - Lifetime EP0625466B1 (en)

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CH1503/93 1993-05-17
CH150393 1993-05-17

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EP (1) EP0625466B1 (en)
JP (1) JP3440131B2 (en)
KR (1) KR100316365B1 (en)
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EP0965446A1 (en) * 1998-06-16 1999-12-22 De La Rue Giori S.A. Security printing machine for printing security paper
EP0985548A1 (en) * 1998-09-08 2000-03-15 De La Rue Giori S.A. Security printing machine
US6302016B1 (en) 1998-09-08 2001-10-16 De La Rue Giori S.A. Machine for the security printing of security papers
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EP1832422A3 (en) * 2000-05-08 2007-10-24 Kba-Giori S.A. Installation for treating sheets of printed paper
EP1314554A1 (en) 2001-11-23 2003-05-28 Kba-Giori S.A. Removing device for security-elements
WO2003043823A1 (en) 2001-11-23 2003-05-30 Kba-Giori S.A. Device for unsticking security elements
WO2003099579A1 (en) 2002-05-24 2003-12-04 Kba-Giori S.A. Process and apparatus for providing markings on security papers

Also Published As

Publication number Publication date
US5429044A (en) 1995-07-04
JP3440131B2 (en) 2003-08-25
EP0625466B1 (en) 1997-05-02
DE69402911D1 (en) 1997-06-05
AU5932694A (en) 1994-11-24
KR100316365B1 (en) 2002-02-19
CN1116987A (en) 1996-02-21
JPH06328662A (en) 1994-11-29
AU669052B2 (en) 1996-05-23
DE69402911T2 (en) 1997-11-27
ATE152411T1 (en) 1997-05-15
CN1036185C (en) 1997-10-22
CA2120789A1 (en) 1994-11-18
RU2111863C1 (en) 1998-05-27
UA35576C2 (en) 2001-04-16

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