EP4368406A1 - Procédé d'impression d'un document - Google Patents

Procédé d'impression d'un document Download PDF

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Publication number
EP4368406A1
EP4368406A1 EP23205311.6A EP23205311A EP4368406A1 EP 4368406 A1 EP4368406 A1 EP 4368406A1 EP 23205311 A EP23205311 A EP 23205311A EP 4368406 A1 EP4368406 A1 EP 4368406A1
Authority
EP
European Patent Office
Prior art keywords
color
pattern
layer
ink
color layer
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.)
Pending
Application number
EP23205311.6A
Other languages
German (de)
English (en)
Inventor
Dr. Stephan BEHNKE
Adrian Heuberger
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.)
Bundesdruckerei GmbH
Original Assignee
Bundesdruckerei 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 Bundesdruckerei GmbH filed Critical Bundesdruckerei GmbH
Publication of EP4368406A1 publication Critical patent/EP4368406A1/fr
Pending legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/14—Multicolour printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M3/00—Printing processes to produce particular kinds of printed work, e.g. patterns
    • B41M3/14—Security printing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
    • B41M1/00—Inking and printing with a printer's forme
    • B41M1/14—Multicolour printing
    • B41M1/18—Printing one ink over another

Definitions

  • the present invention relates to the field of printing methods for printing a document, such as a banknote.
  • simultaneous offset printing processes can usually be used to create specific print images.
  • Such print images usually have patterns with lines and integrated color gradients. Rasterized areas are also used.
  • the specific print images can be security features to verify the authenticity of the document.
  • the invention relates to a method for printing a document having a substrate, comprising: receiving a first color layer of a printing ink from a first printing original by an ink receptor; after receiving the first color layer, receiving a second color layer of the printing ink from a second printing original by the ink receptor, such that the ink receptor carries the first color layer and the second color layer; transferring the first color layer and the second color layer by means of the ink receptor to the substrate in the same transfer process in order to print the document with a composite color layer.
  • the specific print image of the combined color layer enables the authenticity of the document to be verified, for example haptically and/or visually.
  • the substrate has little or no absorbency with respect to the printing ink.
  • the printing ink can, for example, be partially opaque, in particular semi-opaque, and/or translucent.
  • the composite color layer can, for example, be semi-transparent.
  • the composite color layer can, for example, have at least one further color layer in addition to the first color layer and the second color layer. For example, characteristic effects, for example one or more holograms, can be realized through the composite color layer.
  • the substrate comprises one of the following: paper, at least one plastic such as polyethylene and/or polypropylene, in particular biaxially stretched polypropylene (BOPP), natural fibers such as cotton or wood, plastic fibers such as polymer or polyethylene, or a combination thereof.
  • the substrate can also be impregnated and/or coated with at least one plastic such as polypropylene and/or polyethylene.
  • the substrate can be a fiber composite material, for example.
  • the document is one of the following documents: an identity card, a passport, an access control card, an authorization card, a company card, a tax stamp, a ticket, a birth certificate, a driving license, a motor vehicle registration document, or a means of payment, for example a banknote or a bank card or a credit card.
  • the second color layer superimposes the first color layer at least in sections in order to obtain a predetermined tone value of the composite color layer, or the first color layer and the second color layer are recorded by the color sensor without superposition.
  • the resulting composite color layer will be darker. If the first and second color layers do not overlap, patterns of the corresponding color layers can be arranged next to each other and/or a contrasting effect can be achieved.
  • the first printing template has a pattern that is transferred to the ink receiver as a color pattern with the first ink layer, or has the second printing template, which is transferred to the ink receiver as a color pattern using the second ink layer.
  • the second printing template can preferably be designed as a relief printing form. This achieves a particularly effective effect of the printed image.
  • the first printing template can also be designed as a relief printing form in order to adapt the printing process in terms of process technology, whereby the efficiency of the printing process can be increased.
  • the first printing template has the pattern that is transferred to the color receiver with the first color layer as a color pattern, and wherein the second color layer is pattern-free, or the second printing template has the pattern that is transferred to the color receiver with the second color layer as a color pattern, and wherein the first color layer is pattern-free.
  • the transfer of the second color layer to the first color layer on the color receiver can be carried out "wet on wet", i.e. while the respective printing ink of the color layers is still liquid or viscous. Both color layers can then be printed together on the substrate. This means that the desired color overlay effect can also be achieved in simultaneous offset printing.
  • the first printing template has a first pattern which is transferred to the ink receiver with the first ink layer as a first ink pattern
  • the second printing template has a second pattern which is transferred to the ink receiver with the second ink layer as a second ink pattern
  • the first color sample and the second color sample are printed on the document by the color sensor.
  • the first color pattern and the second color pattern together form a composite color pattern which is transferred to the document by the color receiver.
  • the first color layer and the second color layer have the same tonal value.
  • the first color layer comprises light-reflecting pigments which produce a light pattern when irradiated with ultraviolet or infrared light
  • the second color layer comprises light-reflecting pigments which produce a light pattern when irradiated with ultraviolet or infrared light.
  • the specific print image of the first and/or second color layer in the composite color layer can be captured by the light pattern.
  • the first color layer can generate a first light pattern when irradiated with ultraviolet light and the second color layer can generate a second light pattern when irradiated with infrared light.
  • the first color layer can generate a first light pattern when irradiated with infrared light. produce a first light pattern and the second color layer can produce a second light pattern when irradiated with ultraviolet light.
  • the light-reflecting pigments of the first color layer and the light-reflecting pigments of the second color layer produce different light patterns when irradiated.
  • the ink receiver is an ink receiving cylinder, in particular a rubber blanket cylinder.
  • the method is, for example, a simultaneous offset printing method, wherein the first printing template is a first printing plate and wherein the second printing template is a second printing plate.
  • the Figure 1 shows a flow chart showing steps of a method 100 for printing a Figure 2 illustrated document 200 having a substrate 207.
  • the method may be a simultaneous offset printing method.
  • the method 100 comprises a step 101 of recording a Figure 2 shown first color layer 201 of a printing ink from a first printing template by a color receiver.
  • the first printing template can be a first printing plate, for example a letterset letterpress plate or an offset printing plate.
  • the ink receiver can be an ink receiving cylinder, in particular a blanket cylinder.
  • the method 100 further comprises, after the step 101 of receiving the first color layer 201, a step 103 of receiving a Figure 2 shown second color layer 203 of the printing ink from a second printing original through the color receiver, so that the color receiver carries the first color layer 201 and the second color layer 203.
  • the second printing original can be a second printing plate, for example a letterset letterpress plate or an offset printing plate.
  • the method 100 further comprises a step 105 of transferring the first color layer 201 and the second color layer 203 by means of the color receiver in the same transfer process to the substrate 207 in order to provide the document 200 with a Figure 2 illustrated composite color layer 205.
  • Figure 2 shows a schematic view of the document 200 with the substrate 207 and the color layer 205 assembled in the method 100 according to an embodiment.
  • the document 200 can be a banknote, for example.
  • the substrate 207 can have little or no absorbency with respect to the printing ink, so that after physical drying of the printing ink transferred to the substrate 207, an ink layer thickness and structure of the assembled ink layer 205 on the substrate 207 is retained as far as possible.
  • the composite color layer 205 on the substrate 207 can have characteristic elevations 209 and depressions 211, which can be dependent at least in sections on the first printing template and/or on the second printing template.
  • the elevations 209 and depressions 211 can be detected haptically and/or visually, for example manually and/or automatically by a document checking device, in order to check the authenticity of the document 200.
  • Figure 3a shows a section-wise overlay of the color layers 201, 203 in the method 100 according to an embodiment.
  • the first color layer 201 and the second color layer 203 can have the same tone value.
  • the second color layer 203 can overlay the first color layer 201 at least in sections, as in Figure 3a in a Overlay section 301 is shown to obtain a predetermined tone value of the composite color layer 205.
  • the predetermined tone value in the overlay section 301 can thus be darker than the tone value of the first color layer 201 and the second color layer 203.
  • the first color layer 201 and the second color layer 203 can be recorded by the color sensor without overlay.
  • a detectable contrast of the tonal value of the composite color layer 205 inside and outside the overlay section 301 can be achieved.
  • the overlay section 301 is in the Figure 3a shown as rectangular, but may also take any other suitable shape, such as alphanumeric characters.
  • the first color layer 201 can have light-reflecting pigments which produce a light pattern when irradiated with ultraviolet or infrared light
  • the second color layer 203 can have light-reflecting pigments which produce a light pattern when irradiated with ultraviolet or infrared light.
  • the light-reflecting pigments of the first color layer 201 and the light-reflecting pigments of the second color layer 203 can produce different light patterns when irradiated.
  • a superimposition of the different light patterns to form a further light pattern can be achieved.
  • Figure 3b shows a further section-wise overlay of the color layers 201, 203 in the method 100 according to an embodiment.
  • the first printing template can have a first pattern 303, which is transferred to the color receiver as a color pattern with the first color layer 201.
  • the second color layer 203 can then be pattern-free in this case.
  • the second printing template can alternatively have a pattern that is transferred to the color receiver as a color pattern with the second color layer 203.
  • the first color layer 201 can then be pattern-free in this alternative case.
  • Figure 3c shows a further section-wise overlay of the color layers 201, 203 in the method 100 according to an embodiment.
  • the first color layer 201 may have a first pattern 303 which is in the Figure 3c shown merely as an example as the first arrow.
  • the second color layer 203 can have a second pattern 305, which in the Figure 3c is shown merely as an example as a second arrow opposite to the first arrow.
  • the first printing template can have the first pattern 303, which is transferred to the color receiver with the first color layer 201 as a first color pattern.
  • the second printing template can have the second pattern 305, which is transferred to the color receiver with the second color layer 203 as a second color pattern.
  • the first color pattern and the second color pattern can be printed by the color receiver onto the document 200, in particular by transferring them to the substrate 207.
  • the first color pattern and the second color pattern may together form a composite color pattern that is transferred to the document 200 by the color receptor.
  • the first color layer 201 and the second color layer 203 can be recorded by the color sensor without overlay, so that the patterns 303, 305 can be arranged next to each other or adjacent to each other outside the overlay section 301.

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  • Printing Methods (AREA)
EP23205311.6A 2022-11-08 2023-10-23 Procédé d'impression d'un document Pending EP4368406A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102022129534.6A DE102022129534A1 (de) 2022-11-08 2022-11-08 Verfahren zum Bedrucken eines Dokuments

Publications (1)

Publication Number Publication Date
EP4368406A1 true EP4368406A1 (fr) 2024-05-15

Family

ID=88511125

Family Applications (1)

Application Number Title Priority Date Filing Date
EP23205311.6A Pending EP4368406A1 (fr) 2022-11-08 2023-10-23 Procédé d'impression d'un document

Country Status (2)

Country Link
EP (1) EP4368406A1 (fr)
DE (1) DE102022129534A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69902309T2 (de) * 1998-04-08 2003-02-20 Kba-Giori S.A., Lausanne Rotationsdruckmaschine für Wertpapier
EP2886343A1 (fr) * 2013-12-17 2015-06-24 Giesecke & Devrient GmbH Procédé de fabrication d'un document de valeur, document de valeur ainsi obtenu et procédé d'exécution du procédé
EP3246160A1 (fr) * 2016-05-19 2017-11-22 KBA-NotaSys SA Mesure et correction du registre d'impression d'un imprimé polychrome formé sur un matériau imprimé
EP3401114A1 (fr) * 2017-05-12 2018-11-14 KBA-NotaSys SA Élément de sécurité ou document et son procédé de production
EP3489029A1 (fr) * 2017-11-27 2019-05-29 KBA-Notasys SA Élément de sécurité imprimé comportant une caractéristique d'arc-en-ciel et son procédé de production
GB2588205A (en) * 2019-10-15 2021-04-21 De La Rue Int Ltd Security print media
FR3107470A1 (fr) * 2020-02-26 2021-08-27 Banque De France Procede de fabrication d’un billet de banque

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10225198B4 (de) 2002-06-06 2007-07-12 Polytype S.A. Verfahren und Vorrichtung zum Drucken eines mehrfarbigen Bildes
GB201520085D0 (en) 2015-11-13 2015-12-30 Rue De Int Ltd Methods of manufacturing image element arrays for security devices

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE69902309T2 (de) * 1998-04-08 2003-02-20 Kba-Giori S.A., Lausanne Rotationsdruckmaschine für Wertpapier
EP2886343A1 (fr) * 2013-12-17 2015-06-24 Giesecke & Devrient GmbH Procédé de fabrication d'un document de valeur, document de valeur ainsi obtenu et procédé d'exécution du procédé
EP3246160A1 (fr) * 2016-05-19 2017-11-22 KBA-NotaSys SA Mesure et correction du registre d'impression d'un imprimé polychrome formé sur un matériau imprimé
EP3401114A1 (fr) * 2017-05-12 2018-11-14 KBA-NotaSys SA Élément de sécurité ou document et son procédé de production
EP3489029A1 (fr) * 2017-11-27 2019-05-29 KBA-Notasys SA Élément de sécurité imprimé comportant une caractéristique d'arc-en-ciel et son procédé de production
GB2588205A (en) * 2019-10-15 2021-04-21 De La Rue Int Ltd Security print media
FR3107470A1 (fr) * 2020-02-26 2021-08-27 Banque De France Procede de fabrication d’un billet de banque

Also Published As

Publication number Publication date
DE102022129534A1 (de) 2024-05-08

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