EP2628594B1 - Procédé d'impression digitale par tampographie - Google Patents

Procédé d'impression digitale par tampographie Download PDF

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Publication number
EP2628594B1
EP2628594B1 EP13000288.4A EP13000288A EP2628594B1 EP 2628594 B1 EP2628594 B1 EP 2628594B1 EP 13000288 A EP13000288 A EP 13000288A EP 2628594 B1 EP2628594 B1 EP 2628594B1
Authority
EP
European Patent Office
Prior art keywords
printing
cleaning
substrate
delivery substrate
pad
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.)
Active
Application number
EP13000288.4A
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German (de)
English (en)
Other versions
EP2628594A1 (fr
Inventor
Peter Weingartner
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.)
Durst Phototechnik Digital Technology GmbH
Original Assignee
Durst Phototechnik Digital Technology GmbH
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 Durst Phototechnik Digital Technology GmbH filed Critical Durst Phototechnik Digital Technology GmbH
Publication of EP2628594A1 publication Critical patent/EP2628594A1/fr
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Publication of EP2628594B1 publication Critical patent/EP2628594B1/fr
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F17/00—Printing apparatus or machines of special types or for particular purposes, not otherwise provided for
    • B41F17/001—Pad printing apparatus or machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
    • B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
    • B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
    • B41J2/0057—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material where an intermediate transfer member receives the ink before transferring it on the printing material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M5/00—Duplicating or marking methods; Sheet materials for use therein
    • B41M5/025—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet
    • B41M5/0256—Duplicating or marking methods; Sheet materials for use therein by transferring ink from the master sheet the transferable ink pattern being obtained by means of a computer driven printer, e.g. an ink jet or laser printer, or by electrographic means

Definitions

  • the present invention relates to the field of colored digital ink pad printing.
  • Pad printing is a widely used printing technique for printing on workpieces having planar and / or uneven and raised, recessed or generally curved surface areas.
  • the areas of application of the pad printing technology are due to the ability to print on even non-planar surfaces by a deformable tampon, very diverse. It can e.g. Cups, buttons of any kind, lighters, pens, levers, tennis and golf balls, cups, tools and other non-flat workpieces are easily printed.
  • Pad printing usually use a deformable tampon, which receives in a cliché given as depression and consisting of ink existing print motif by means of pressure contact and transferred in a second step, the recorded motif by means of pressure contact on a workpiece.
  • Clichés are the carriers of the chemical, photochemical or laser printed motifs and can be subdivided into different types.
  • the clichés can be made of metals such as steel, strip steel, aluminum or chrome as well as ceramics but also of a variety of polymers and alkoxides.
  • the print motif in the cliché is etched deepened on metallic surfaces, first photo-exposed on UV-sensitive surfaces and then with a washout medium, the substrate to be removed is washed out.
  • Ceramic surfaces and alkoxide surfaces can be prepared by laser imaging.
  • colored in the context is to be understood as meaning both the primary colors (red (magenta), blue (cyan), yellow), their mixed colors as well as a "transparent color", individual colors, white and black.
  • digital printer should be understood in the context to mean printers such as ink jet printers that enable non-contact printing of a subject.
  • digital pad printer is to be understood in the context as meaning a printing device comprising a digital printer and a pad printing device as a combination.
  • digital pad printing system and “digital pad printing device” are to be understood as synonyms for "digital pad printing”.
  • a conventional digital pad printing system unlike a pad printing system, does not use a cliche but essentially uses a planar release substrate having an ink receiving surface on which an ink motif is printed with a digital printer, the printed ink motif being press contacted onto a tampon in a subsequent operation is transmitted.
  • Such a digital tampon printing device is in the document EP 1 053 882 B1 disclosed.
  • the document describes a printer comprising a digital printer and a conventional pad printing device.
  • This printer includes a substantially planar dispensing substrate having a printing ink receiving surface.
  • ink is delivered from the nozzles to the ink receiving surface of the dispensing substrate to print a motif, the printheads and the dispensing substrate being movable relative to one another.
  • the printed ink motif is picked up by a print transfer ink from the discharge substrate by means of pressure contact and transferred to an object to be printed by means of pressure contact.
  • the dispensing substrate is configured as an endless conveyor that cyclically travels past the printheads in a conveying direction.
  • the printing device includes a substantially planar writable dispensing substrate, which may be, for example, a textile tape and a natural or synthetic material, the backing having a certain microporosity to prevent the ink of the inkjet printer from blurring, To be able to pick up streaks or loss of outlines.
  • the delivery substrate is thereby unrolled from a supply reel and rolled up again after printing by a take-up reel.
  • the image printed on the substantially flat base is picked up by a movable pad by pressure contact and transferred in a subsequent step to a desired location of a workpiece to be printed.
  • the conventional digital pad printing systems are generally characterized by a relatively complicated mechanical structure, which is reflected in the printing processes.
  • the delivery substrate is an object for receiving and delivering an ink motif, and is part of a delivery device that places the delivery substrate into the area of action of the particular printing device, the digital printing device, and the pad printing device operating at different printing levels.
  • a printing method in which the delivery substrate is unrolled by means of a delivery substrate conveying device in a first plane from a supply spool and printed with a digital printer.
  • a deflection roller / guide By a deflection roller / guide the dispensing substrate is deflected in a second parallel above or below level, so that the dispensing substrate changes orientation when changing the planes and continues parallel to the first level upside down.
  • this second level the transfer of the ink motif from the delivery substrate to the tampon occurs by pressure contact.
  • a delivery device configured as an endless conveyor is provided for the delivery substrate.
  • the dispensing substrate moves cyclically past the printheads in a conveying direction, the dispensing substrate changing both the plane and the orientation in the printing processes.
  • a Dispensing substrate conveying device necessary to perform the printing processes on two levels can.
  • the inkjet printer as well as the pad printing device preferably operate on the same plane for the sake of simplicity.
  • the dispensing substrate device of the dispensing substrate unlike the conventional digital ink pad printing apparatus, may be simplified in structure so as to function only as a retainer and not to move substantially, with the digital printer, the pad printer, and the dispenser substrate cleaning apparatus moving relative thereto. It is thereby achieved that the dispensing substrate substantially retains orientation during the entire process duration.
  • the simplified construction has the advantage that costs can be reduced, and also that accessibility from above is at least partially facilitated because the delivery substrate substantially maintains orientation and because the individual printing devices operate at the same levels.
  • digital tampon printing device is particularly suitable by the simplified design to perform the printing method of the invention.
  • Another problem with the method is that the quality of cleaning is relatively low, since the receptivity of the ink fountain bar pad, especially for partially dried ink residues, is generally not high enough to completely clean the release substrate after a single cleaning.
  • the quality problem resulting from said process could be counteracted by, for example, cleaning the release substrate in several purification steps.
  • the tampon itself must be cleaned with, for example, a tampon cleaning device so as not to retransfer the adhering ink residue to the delivery substrate.
  • a method for performing at least one printing cycle with a digital ink printing apparatus for printing a colored ink motif on a workpiece, wherein a printing cycle comprises the steps of: (a) disposing a substantially planar release substrate in the sphere of influence of an inkjet printer; Step (b) printing the ink motif on the delivery substrate by means of the inkjet printer; Step (c) placing the printed release substrate in the area of action of a tampon; Step (d) transferring the ink motif to the tampon; Step (e) cleaning operation of the discharge substrate and transferring the ink motif from the tampon to a workpiece; wherein steps (a) to (e) occur successively and step (a) forms the beginning of a further printing cycle, during which the orientation of the dispensing substrate is substantially maintained throughout the process.
  • a tampon is shut down on the print material and at the same time sprayed with a color transfer device
  • the present invention has for its object to provide a digital ink pad printing machine, with a constant high process speed can be guaranteed while maintaining high print quality.
  • cleaning when, in the context of this description, cleaning is mentioned, this does not only mean the execution of the cleaning following the previous working step.
  • cleaning operation is intended to mean the arrangement of a device following the previous working step into the area of action of a second device for carrying out the cleaning.
  • placing a first device in the area of action of a second device does not only mean the forward movement of the first device into the area of action of the second device.
  • arranging or “arrangement” should also be meant the relative movement of the two devices to each other, in the relative movement, for example, move both devices or only the second device is moved towards the first, so that after the arrangement, a device is within the scope of another device, so that the implementation of a desired step can take place.
  • the printing method according to the invention is carried out, inter alia, by the fact that the cleaning of the release substrate with the tampon is abandoned and carried out with a dedicated release substrate cleaning device.
  • a control unit determines an optimal sequence of process steps in order to greatly reduce interruptions in the process of the printing press, so that the process speed can be increased.
  • the procedure according to the invention is such that a transfer process of the ink motif from the tampon to a workpiece is at least partially overlapping in time with a cleaning process of the delivery substrate and preferably within a printing cycle or two consecutive printing cycles at least one cleaning operation of at least one tampon takes place in which the at least one tampon is cleaned by means of a tampon cleaning device, wherein the dispensing substrate (108) relative to the inkjet printer (100), pad printing device (102) and dispensing substrate cleaning device (140 ), wherein the arrangement of the substantially planar delivery substrate (108) in the area of action of the inkjet printer (100) according to step a) at least partially temporally overlapping with the cleaning process and preferably with the cleaning of the delivery substrate (108) in the context of the cleaning process according to step e) of the previous printing cycle takes place.
  • a total of two cleaning devices are provided according to the invention, one for the release substrate and one for the at least one tampon. This means that high process stability, process quality and a high process speed can be guaranteed at any time. However, additional cleaning devices for cleaning the dispensing substrate or the tampon may also be provided.
  • the dispensing substrate cleaning device is designed such that after a single cleaning operation, even stubborn ink residue can be removed from the dispensing substrate so that a virgin surface can be provided for each new ink motif.
  • Fig. 1 shows a schematic representation of a preferred embodiment of the digital ink pad 152 with which the inventive printing method is performed.
  • This embodiment comprises an inkjet printing device 100, a pad printing device 102, a dispensing substrate device 104, a dispenser substrate cleaning device 140 and a pad cleaning device 148.
  • the dispensing substrate 108 assumes a fixed position during the entire printing process, ie it is not moved.
  • the dispensing substrate device 104 with dispensing substrate 108 is mounted on a dispensing substrate holding device 101, for example.
  • a substantially flat release substrate 108 is arranged in the area of action of an inkjet printer 100.
  • the dispensing substrate 108 assumes a fixed position, i. it is not moved, with the inkjet printer 100 being passed over the delivery substrate 108. It should be noted that in this example, the dispensing substrate 108 assumes a fixed position throughout the printing process.
  • the ink motif 112 is printed on the delivery substrate 108 by means of the inkjet printer 100.
  • the release substrate 108 is placed in the area of action of a tampon 118 in a method step c).
  • step d) the ink motif 112 is transferred from the delivery substrate 108 to the pad 118 by pressure contact, and in a cleaning process, the delivery substrate 108 is placed in the area of action of a delivery substrate cleaning device 140 and cleaned, and in a transfer process, the ink motif 112 is removed from the pad 118 transferred to the workpiece 142.
  • the procedure is such that the transfer process of the ink motif 112 from the tampon 118 to a workpiece 142 is at least partially overlapping in time with the cleaning process of the delivery substrate 108, and preferably at least one cleaning process of at least one tampon takes place within one printing cycle or two subsequent printing cycles 118, wherein the at least one tampon 118 is placed and cleaned in the area of action of the tampon cleaning device 148.
  • a new printing cycle begins in which the release substrate 108 is again arranged in the area of action of the inkjet printer 100.
  • Figures 2 and 3 show schematic representations of different process steps of a preferred embodiment of the digital pad printing 152, which is also particularly suitable to perform the inventive printing method.
  • the difference between the dispensing substrate device 104a in FIGS Fig. 2 . 3 and the delivery substrate device 104 in FIG Fig. 1 is that the former is movable and the latter occupies a fixed position, that is not moved.
  • the step e) can take place in such a way that the transfer of the ink motif 112 to the workpiece 142 is at least partially overlapping in time with the cleaning process of the delivery substrate 108 in the context of the transfer process.
  • the step e) can take place in such a way that the transfer process of the ink motif 112 to the workpiece 142 is at least partially overlapping in time with the cleaning of the delivery substrate 108 as part of the cleaning process.
  • the step e) can take place in such a way that at least partially overlapping in time with the cleaning of the delivery substrate 108 in the course of the cleaning process Transfer of the ink motif 112 on the workpiece 142 in the context of the transfer process takes place.
  • the at least one cleaning process and preferably the at least one cleaning of the at least one tampon 118, can take place at least partially overlapping in time with the cleaning process or the cleaning during the cleaning process of the dispensing substrate 108.
  • An arrangement of the tampon 118 for cleaning can be carried out such that a rotational movement of the tampon carrier 116 is performed about an axis 114.
  • the dispensing substrate 108 may occupy a fixed position in the process, i. it is not moved with the inkjet printer 100, the pad printing device 102 and the dispenser substrate cleaning device 140 being moved relative to the dispensing substrate 108.
  • the dispensing substrate 108 in another preferred embodiment, may be moved relative to the inkjet printer 100, the pad printing device 102, and the dispenser substrate cleaning device 140.
  • the dispensing substrate 108 may change direction between the two printing devices, inkjet printer 100 and pad printing device 102, before and / or during and / or after a printing process in a periodically sequential transport operation with reciprocating motion 110, with back and / or forth originating movement 110 is printed.
  • the arrangement of the essentially planar delivery substrate 108 into the effective range of the inkjet printer 100 according to step a) at least partially overlaps with the cleaning process and preferably with the cleaning of the delivery substrate 108 during the cleaning process according to step e) of FIG previous printing cycle done. This can further increase the speed of the digital pad printing machine.
  • the digital ink printer includes an inkjet printer 100, a pad printing device 102, a pad cleaning device 148 and a dispensing substrate device 104 / 104a, with the dispensing substrate device 104 / 104a and with an inkjet positioning device, the dispensing substrate 108 and the inkjet printer 100 in a predetermined manner at a constant distance in two dimensions relative to each other and wherein a dispensing substrate cleaning device 140 is provided for cleaning the dispensing substrate 108.
  • Pad printing device 102 may include a tampon carrier 116 rotatable incrementally about an axis 114 that supports at least one tampon 118.
  • the tampon carrier 116 can perform an up and down stroke 122 in synchronism with the stepwise rotational movement 120.
  • the tampon carrier 116 may perform a horizontal reciprocating motion 124 in synchronism with an up and down stroke 122.
  • the pad carrier 116 can be moved in all three spatial directions.
  • the dispensing substrate device 104 may consist of a plate 400, in particular a metal plate on which, for example, a structure 402 is mounted.
  • the dispenser substrate device 104 / 104a has a substantially planar dispensing substrate 108 on the top thereof.
  • the substantially planar release substrate 108 may also have a microangled surface to accept certain inks.
  • the dispensing substrate device 104a may include a guide device that includes at least one guide rail 150, and preferably at least two guide rails 150.
  • the digital pad printing apparatus may include an endless conveyor 144 having a conveyor 154 on which support means 146 for the workpieces 142 to be printed may be provided.
  • the endless conveying device 144 may for example be arranged parallel below or next to the guiding device.
  • the driving device for moving the discharge substrate device 104a between the inkjet printing device 100 and the pad printing device 102 may be, for example, a linear motor, a spindle motor, or another motor.
  • the present invention is not limited to the embodiments of the digital ink pad 152 in FIGS Fig. 1-3 limited to understand. This may include, for example, two dispensing substrate devices 108 and two pad printing devices 102, so that the production capacity may be further increased.
  • the dispensing substrate cleaning device 140 may include a cleaning belt wiper device that cleans the dispensing substrate 108.
  • the cleaning belt is wetted with a cleaning fluid and is pressed with a pressing device onto the surface of the delivery substrate and guided, for example, by rollers over the delivery substrate.
  • surfactants suitable volatile organic compounds or other solvents in which the inks dissolve may be used as cleaning fluids.
  • the dispensing substrate 108 may be dried immediately thereafter with a dry tape.
  • a tape which is wetted with a volatile organic solvent can be used, whereby the solvent must evaporate as quickly as possible, so that it does not lead to delays in the printing process.
  • an air blower can be used for rapid and immediate drying of the dispensing substrate 108.
  • the air blower may be integrated in the dispensing substrate cleaning device 140.
  • the wetted with the cleaning fluid tape and the belt for drying are formed such that preferably no fiber residues remain on the release substrate 108 after cleaning. Should undesired fiber residues nevertheless remain on the delivery substrate 108, these can be removed with an air blower.

Landscapes

  • Ink Jet (AREA)
  • Application Of Or Painting With Fluid Materials (AREA)

Claims (7)

  1. Procédé d'exécuter du moins un cycle d'impression ayant un dispositif d'impression digitale au tampon pour imprimer un motif d'encre coloré (112) sur une pièce (142), le cycle d'impression comprenant les étapes suivantes:
    a) Disposition d'un substrat de distribution essentiellement plat (108) dans la zone d'action d'une imprimante à jet d'encre (100)
    b) imprimer le motif d'encre (112) sur le substrat de distribution (108) au moyen de l'imprimante à jet d'encre (100)
    c) Disposition du substrat de distribution imprimé (108) dans la zone d'action du tampon (118)
    d) transfert du motif d'encre (112) sur le tampon (118)
    e) Procédé de nettoyage du substrat de distribution (108) et procédé de transfert du motif d'encre (112) du tampon (118) sur une pièce (142),
    les étapes (a) à (e) étant exécutées successivement et l'étape (a) constituant le début d'un autre cycle d'impression, pendant tout le procédé l'orientation du substrat de distribution (108) étant maintenue essentiellement et le procédé étant caractérisé par le fait que l'étape (e) s'effectue de telle manière que le procédé de transfert du motif d'encre (112) sur la pièce (142) se chevauche du moins partiellement dans le temps avec le procédé de nettoyage du substrat de distribution (108) et, de préférence en un cycle ou deux cycles consécutifs, du moins un procédé de nettoyage de du moins un tampon (118) s'effectue au moyen d'un dispositif de nettoyage de tampon (148), le substrat de distribution (108) étant déplacé par rapport à l'imprimante de jet d'encre (100), au dispositif d'impression au tampon (102) et au dispositif de nettoyage du substrat de distribution (140), la disposition du substrat de distribution essentiellement plat (108) dans la zone d'action de l'imprimante à jet d'encre (100) selon l'étape (a) se chevauchant du moins partiellement dans le temps avec le procédé de nettoyage et de préférence avec le nettoyage du substrat de distribution (108) dans le cadre du procédé de nettoyage selon l'étape (e) du cycle d'impression précédent.
  2. Procédé selon la revendication 1 caractérise en ce que l'étape (e) s'effectue de telle manière que le transfert du motif d'encre (112) sur la pièce (142) se chevauche du moins partiellement dans le temps avec le procédé de nettoyage du substrat de distribution (108) dans le cadre du procédé de transfert.
  3. Procédé selon la revendication 1 ou 2 caractérisé en ce que l'étape (e) s'effectue de telle manière que le procédé de transfert du motif d'encre (112) sur la pièce (142) se chevauche du moins partiellement dans le temps avec le nettoyage du substrat de distribution (108) dans le cadre du procédé de nettoyage.
  4. Procédé selon la revendication 1 caractérisé en ce que l'étape (e) s'effectue de telle manière que le transfert du motif d'encre (112) sur la pièce (142) dans le cadre du procédé de transfert se chevauche du moins partiellement dans le temps avec le nettoyage du substrat de distribution (108) dans le cadre du procédé de nettoyage.
  5. Procédé selon l'une des revendications 1 à 4 caractérisé en ce que le du moins un procédé de nettoyage et de préférence le du moins un nettoyage du du moins un tampon (118) se chevauche du moins partiellement dans le temps avec le procédé de nettoyage ou le nettoyage du substrat de distribution (108) dans le cadre du procédé de nettoyage.
  6. Procédé selon l'une des revendications 1 à 5 caractérisé en ce que le substrat de distribution (108) occupe une position ferme, i.e. il n'est pas déplacé tandis que l'imprimante à jet d'encre (100), le dispositif d'impression à tampon (102) et le dispositif de nettoyage du substrat de distribution (140) sont déplacés par rapport au substrat de distribution (108).
  7. Procédé selon l'une des revendications 1 à 5 caractérisé en ce que le substrat de distribution (108) change de direction entre les deux dispositifs d'impression, l'imprimante à jet d'encre (100) et le dispositif d'impression au tampon (102), avant et/ou pendant et/ou après un processus d'impression au cours d'un procédé de transport périodiquement progressif en mouvant en va-et-vient (110), pendant le mouvement de va-et-vient l'impression étant effectuée.
EP13000288.4A 2012-02-15 2013-01-21 Procédé d'impression digitale par tampographie Active EP2628594B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012002808 2012-02-15

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EP2628594A1 EP2628594A1 (fr) 2013-08-21
EP2628594B1 true EP2628594B1 (fr) 2019-07-10

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DE (1) DE102013000835A1 (fr)

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CN103707653B (zh) * 2013-12-25 2015-10-21 东北大学 一种带装箱装置的打火机打印机
CN103692778B (zh) * 2013-12-25 2015-12-09 东北大学 一种全自动打火机印刷机
DE102015209446A1 (de) * 2015-05-22 2016-11-24 Wilfried Philipp Tampondruckvorrichtung und Verfahren zum indirekten Bedrucken von Gegenständen
CN111674146B (zh) * 2020-05-11 2022-08-12 黄军 一种安全帽快速印制商标的设备
DE102020116763A1 (de) * 2020-06-25 2021-12-30 Phoenix Contact Gmbh & Co. Kg Tampondruckvorrichtung
IT202100003776A1 (it) * 2021-02-18 2022-08-18 ROBOPRINT srls Dispositivo di stampa tampografica perfezionato mediante tecniche digitali
CN114132070A (zh) * 2021-11-30 2022-03-04 赣州惠彩印刷有限公司 一种环保印刷装置

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FR2642006B1 (fr) * 1989-01-20 1995-04-14 Merlin Gerin Machine de tampographie flexible
DE4020223C1 (en) * 1990-06-26 1991-04-11 Tampoflex Gmbh, 7257 Ditzingen, De Method of printing on articles - has section of block with varying information provided with lighter ink
EP0802051A1 (fr) 1996-04-16 1997-10-22 Palser Officina Meccanica s.n.c. di Palmeri Salvatore e Serra Maria Paola Machine pour l'impression par tampographie
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JP2001026094A (ja) * 1999-07-13 2001-01-30 S M Ii:Kk 自動パッド印刷機及びキーテープ
DE19955075A1 (de) * 1999-11-15 2001-05-17 Ulrich Muehlhaeuser Tampondruckmaschine mit drehbarem und linearangetriebenem Tamponhalter zur flexiblen Druckbildauswahl
US6931988B1 (en) * 2004-02-20 2005-08-23 Illinois Tool Works, Inc. Rotary head pad printer
DE102008029558B4 (de) * 2008-06-21 2012-06-21 Itw Morlock Gmbh Tampondruckmaschine

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DE102013000835A1 (de) 2013-08-22
EP2628594A1 (fr) 2013-08-21

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