EP3020565A1 - Procédé de création d'au moins un décor imprimé destiné à être utilisé dans au moins deux procédés d'impression distincts et un dispositif d'exécution de ce procédé - Google Patents

Procédé de création d'au moins un décor imprimé destiné à être utilisé dans au moins deux procédés d'impression distincts et un dispositif d'exécution de ce procédé Download PDF

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Publication number
EP3020565A1
EP3020565A1 EP14193234.3A EP14193234A EP3020565A1 EP 3020565 A1 EP3020565 A1 EP 3020565A1 EP 14193234 A EP14193234 A EP 14193234A EP 3020565 A1 EP3020565 A1 EP 3020565A1
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EP
European Patent Office
Prior art keywords
printing
color
decor
digital
dpi
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
EP14193234.3A
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German (de)
English (en)
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EP3020565B1 (fr
Inventor
Norbert Dr. Kalwa
Timo Skorzik
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.)
Flooring Technologies Ltd
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Flooring Technologies Ltd
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 Flooring Technologies Ltd filed Critical Flooring Technologies Ltd
Priority to EP14193234.3A priority Critical patent/EP3020565B1/fr
Priority to PT141932343T priority patent/PT3020565T/pt
Priority to DK14193234.3T priority patent/DK3020565T3/en
Priority to ES14193234.3T priority patent/ES2606187T3/es
Priority to PL14193234T priority patent/PL3020565T3/pl
Publication of EP3020565A1 publication Critical patent/EP3020565A1/fr
Application granted granted Critical
Publication of EP3020565B1 publication Critical patent/EP3020565B1/fr
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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
    • B41M1/10—Intaglio printing ; Gravure printing
    • 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
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04F—FINISHING WORK ON BUILDINGS, e.g. STAIRS, FLOORS
    • E04F15/00—Flooring
    • E04F15/02—Flooring or floor layers composed of a number of similar elements

Definitions

  • the present invention relates to a method for producing at least one printing decor according to claim 1 and an apparatus for carrying out this method according to claim 13.
  • Decorated wood-based panels are often used to make floor laminate or in the form of wall and ceiling trim elements.
  • the printing techniques mainly used here are gravure printing and digital printing.
  • the gravure printing process is a printing technique in which the elements to be imaged are formed as depressions in a printing form, e.g. a pressure roller, which is colored before printing.
  • the ink is located primarily in the wells and is transmitted due to contact pressure of the printing plate and adhesive forces on the object to be printed.
  • digital printing on the other hand, the print image is transferred directly from a computer to a digital printer, such as a digital printer. a laser printer or inkjet printer, eliminating the use of static printing plates.
  • Digital printing makes it possible to produce a print image with particularly high quality through a higher resolution and also allows a wider range of applications with high flexibility.
  • the method described enables the production of a same decoration on two different carrier materials using a uniform output data set, wherein the decor is first printed on a first carrier material as a pattern print with an inkjet printer in a printing line in digital printing and parallel or subsequently the same decor on a second carrier material is printed by a pressure roller in the gravure printing process in a second printing line. Accordingly, at least one identical digital output data set is used here for producing a pattern print, and at least one identical digital output record is used for the engraving of print rolls for mass production.
  • a method is described in which the resolution of a print motif-based high-resolution electronic data record is reduced.
  • a first print decor is then created on a first substrate using a digital printer, and simultaneously or subsequently, using the same low-resolution electronic data set, a printing roll for a gravure printing process is created with which a second printing decor can be provided on a second substrate ,
  • an electronic data set reduced in resolution is used both to control a digital printer and to produce a set of printing rollers and their use in a gravure printing process for decor coating substrates used. Accordingly, an adaptation of the resolution of the print motif takes place starting from a same digital data record.
  • templates or motifs of various origins are initially provided. These can come from different sources as needed.
  • natural products such as wood or stone can be used
  • other templates can be used, which were produced by further printing techniques such as gravure printing, screen printing or also by means of manual production.
  • documents are then digitized using a scanner, and today's scanners are capable of digitizing large format documents in one scan.
  • Details of the template may be modified, supplemented or removed in the case of a wooden decor, e.g. Knotholes added, removed or changed in size and appearance.
  • geometric operations such as rotations, reflections or even a regrouping of certain parts of the file to each other.
  • the revised file is converted into a format that can be processed on a digital output device in a further process (raster imaging process, RIP).
  • the file is typically in the form of a TIFF file.
  • the output of digital printing is currently almost exclusively using the CMYK color system.
  • the CMYK color model is a subtractive color model, where the abbreviation CMYK stands for the three color components cyan, magenta, yellow and the black component Key as the color depth.
  • CMYK stands for the three color components cyan, magenta, yellow and the black component Key as the color depth.
  • CMYK stands for the three color components cyan, magenta, yellow and the black component Key as the color depth.
  • the outlined methods have in particular disadvantages with regard to a similar or identical reproduction of color and detail in different printing methods, in particular digital printing and intaglio printing. Also, the change of a color inevitably leads to changes in other colors. In addition, the processing of decors is complex.
  • the technical problem underlying the invention was therefore to provide a method for the production of decorative prints on substrates with comparable quality appearance, regardless of whether the decor was created digitally or analogously.
  • a procedure is to be developed, which allows the adaptation of digitally present decors, so that both when using digital printing and analog printing method, preferably the gravure printing method, there is a complete color and visual match of the printed decor structures produced. Since gravure printing is the more efficient printing process for longer runs, it is necessary to create the possibility of adapting existing digital printing designs for gravure printing.
  • a method for producing at least one printing decor, in particular of at least one identical printing decor, for use in at least two different printing methods for printing on at least two carrier materials wherein the digitally present decors are adapted so that as complete as possible color and image match of the printed decor generated in digital printing and gravure printing is achieved.
  • the software used in steps b) and d) is preferably identical.
  • the present method thus uses a reduced in its resolution electronic record for controlling a digital printer as well as for the production of a pressure roller for use in the gravure printing process for the decorative coating of a substrate.
  • the present method digitally separates the color information of the print motif; the various decor or motif structures are dissected in color. Depending on the desired number of output colors, a separate color channel is generated and stored in each case. In addition to the color information, this N color channels also stores the associated decor information. The color information separately present in the color channels can then be changed and edited independently of one another in the individual channels, without the color information in the other channels likewise being changed.
  • the number N of the color channels depends in particular on the number of printing cylinders or printing rollers to be used in gravure printing.
  • the color separation of the décor created with suitable software is both a prerequisite for the production of gravure printing rollers and at the same time serves as a template for digital printing.
  • suitable software such as a graphics program such as Photoshop
  • the separation of the color information of an electronic data set thus serves as a template for both printing processes. This avoids that differing print images arise in digital printing and gravure printing.
  • Another advantage of the present method is that any colors can be generated, the color channels can be edited individually and special colors can be stored as separate channels. It is also possible to use the information in the color channels for other printing technologies.
  • the present method also allows the production of a sample pattern with a specific decor produced in digital printing, which can be presented to a customer and after customer approval of the printing decoration, a transfer to mass production by means of cheaper gravure printing method can be made without loss of quality.
  • a print motif wherein typically various patterns such as veneers with wood grains, tile patterns, parquet imitations or fantasy patterns can be used as print motifs.
  • the at least one print motif with the at least one image-editing software is not only converted into a high-resolution electronic data record, but can also be edited at the same time.
  • the editing may include changes and / or adjustments to decor and / or color, such as modification, modification and / or removal of motif details, or a change in the arrangement of the motif details.
  • the print motif in this process step to edit the subject start and motivational end to edit an endless motif.
  • motif details it is possible to apply markings such as, for example, cutting marks or identification markers of invisible ink which can be read out by means of corresponding detection devices.
  • markings such as, for example, cutting marks or identification markers of invisible ink which can be read out by means of corresponding detection devices.
  • other changes or adjustments of the print motif and the change or additions to the record can be made.
  • the high-resolution electronic data record is digitally separated into the individual color information contained therein.
  • the color information contained in the at least one electronic data record is separated into at least two, preferably at least four, color channels or more.
  • the number N of color channels is limited by the number M of printing rollers to be used for the analogue gravure printing method, where N often does not correspond to M, i. N ⁇ M. This is due to the fact that printing machines for gravure printing usually have only three to four printing units or printing rollers. Accordingly, in gravure printing is often used with mixed colors, so that the number of color channels often does not correspond to the number of pressure rollers. In addition, the colors are partially printed on each other during gravure printing, which can produce additional color nuances (in contrast to digital printing). In addition, in gravure printing is usually printed on a decorative paper, which in its color corresponds approximately to the brightest hue in the decor to be printed. This reduces the number of colors to be printed by one color.
  • the number N of color channels produced is equal to or different from the number M of the printing rollers to be used for the analogue gravure printing method.
  • the number N of color channels corresponds to the number M of printing rollers provided.
  • the color information contained in the at least one electronic data set is separated into three or four color channels and three or four printing rollers are provided correspondingly for the gravure printing process.
  • the number N of color channels is greater than the number M of the printing rollers provided.
  • six to twelve colors, in particular six to ten colors can be used, so that the corresponding number of color channels are generated.
  • several color channels correspond to one pressure roller.
  • the colors separated in the color channels are in each case applied successively and / or one above the other onto the printing rollers. So it is conceivable that two or three color channels are used per printing roller.
  • At least four color channels are assigned to each of the color components cyan, magenta, yellow and key of the color system CMYK. It is also preferable to use the colors light cyan, light magenta, silver and gray in addition to the four colors of the CMYK system. The use of more than four colors or color channels like. e.g. six and more is particularly beneficial for creating special spot colors for customers.
  • the decomposition of the color information in the separate color channels allows for a single and separate processing of the respective color channels, so that any colors can be generated. Any special colors that may be used are stored in the form of a separate channel. It is also conceivable that any color channels are supplemented or removed.
  • the high-resolution data provided in step c) can be used for digital printing, they can thus be used to control a digital print.
  • Record can also be used for analog printing. Accordingly, the data resulting from processing the color information in the color channels is reduced to up to 100 dpi, preferably 60 to 80 dpi, in step d) using at least one image-editing software.
  • the processing of the color channels and the reduction of the resolution are followed by the provision of at least M printing rollers using the data of the created N color channels for a first gravure printing process according to step e).
  • one or even more than one color channel is used e.g. two or three color channels.
  • step f Using the printing rollers provided with the associated color information, according to step f), at least one first printed decoration is produced in the gravure printing method on at least one first carrier material.
  • the color information provided in step d) and possibly processed in the color channels is combined to form at least one digital print file in accordance with step g) for producing a second printed decoration in the digital printing method.
  • the digital print file is converted into a format which can be used for the digital printer used by means of RIP.
  • the digital printer may then create at least a second print decor on a second substrate using the digital print file.
  • the pressure points are - in contrast to gravure - side by side, so that the color impression of a combination of pressure points. Since the digital printing is preferably carried out on a substrate with a light background, a permanent color change does not make sense.
  • the at least one first carrier material and the at least one second carrier material used in the present process may be identical or different and may be selected from a group comprising paper, glass, metal, films, wood-based materials, in particular MDF or HDF boards, Wood Plastic Composites (WPC), veneers, paint layers, plastic plates and inorganic support plates.
  • WPC Wood Plastic Composites
  • the printing decor created by means of digital printing and the printing decor created by gravure printing using the printing roller are printed on uniformly primed substrate materials.
  • the support materials may, for example, be pretreated by a primer layer of a resin and / or a lacquer.
  • an aqueous resin solution and / or a radiation-curable filler may be applied to the primer to be printed on the side of the substrate.
  • a primer for example, aqueous formaldehyde-containing resin solutions such as melamine-formaldehyde resin, urea-formaldehyde resin or melamine-urea-formaldehyde resin can be used. It is also possible to coat the base material with UV filler and / or ESH filler in advance or to prime and then cure this primer layer accordingly.
  • the printing inks used for digital and gravure printing have identical pigments, wherein solvents and binders of the printing inks used may be the same or different.
  • the inks for gravure printing and the inks for the digital printing process have accordingly the same pigment base, leading to comparable or identical results in printing.
  • At least one protective layer in particular a layer comprising abrasion-resistant particles, natural fibers, synthetic fibers and / or further additives, to the printing decor or the printed décors, where resins such as melamine-formaldehyde resin, urea-formaldehyde resin, Acrylate resins and polyurethane resins can be used as suitable binders.
  • the abrasion-resistant particles are preferably selected from the group consisting of aluminum oxides, corundum, boron carbides, silicas, silicon carbides and glass beads.
  • natural and / or synthetic fibers in particular fibers selected from the group comprising wood fibers, cellulose fibers, wool fibers, hemp fibers and organic or inorganic polymer fibers are used.
  • conductive substances As additives, conductive substances, flame retardants, luminescent substances and metals may be added.
  • the conductive substances may be selected from the group comprising carbon black, carbon fibers, metal powder and nanoparticles, in particular carbon nanotubes. It is also possible to use combinations of these substances.
  • flame retardants phosphates, borates, in particular ammonium polyphosphate, tris (tri-bromneopentyl) phosphate, zinc borate or boric acid complexes of polyhydric alcohols are preferably used.
  • the luminescent substances used are preferably fluorescent and / or phosphorescent substances based on inorganic or organic substances, in particular zinc sulfite and alkaline earth aluminates.
  • the printed substrate material which is optionally provided with a protective layer, in particular of formaldehyde resins, is further processed or finished in a short-cycle (KT) press.
  • KT short-cycle
  • the resin layers are melted and the laminate is cured to a laminate.
  • surface structures in the surface of the carrier material such as a wood-based panel, can also be produced using a structured press plate, which optionally can be designed to match the décor (so-called decorsynchronous structure).
  • the structures may be in the form of pore structures that follow the grain. at For many decors, the structures can be depressions in the area of the seam of filling lines filled with the decor.
  • the support materials used may be the same or different.
  • printing inks having the same pigment base for gravure and digital printing can be used in the first and second printing lines, that is, the printing inks used may have identical pigments.
  • the following device comprises at least one means for applying a protective layer to the carrier material decorated with the respective printing.
  • This means or device for applying a protective layer is preferably arranged after the first printing line or second printing line.
  • the present device has at least one short-cycle press for pressing the carrier material provided with the printing decoration and the protective layer arranged thereon.
  • each printing line can be assigned at least one short-cycle press.
  • the carrier materials emerging from the first and second printing lines and each provided with a printing decor are fed to an introductory short-cycle press.
  • a print motif is provided, which can be based on a veneer, real wood, on stone or on a paper template.
  • This print motif is converted using a scanner into a high-resolution electronic data set with a resolution of typically 300 to 1200 dpi.
  • the digitally recorded high-resolution data set is further processed in a further processing step with a software such as Photoshop at a PC workstation.
  • a software such as Photoshop at a PC workstation.
  • branch-extinguishers may be added or removed or altered.
  • the various structures in the decor are separated or separated in color and assigned to N color channels.
  • a specific color or color mixture can be recorded per color channel, the number of individual color channels being determined by the number of printing cylinders to be used in the later analog gravure printing method.
  • the more pressure cylinders or pressure rollers are used in the gravure printing process the more color channels can be used and the higher the separation or separation of the color information of the data set can be.
  • the color separation of the electronic color set of the print motif also allows the production of gray scale images, which are assigned to the mixed colors.
  • the colors or color mixtures in the separated color channels can be processed independently of each other, so that there is no mutual influence and change in the color composition in the other color channels.
  • the printing rollers or printing cylinders to be used for gravure printing are manufactured and the mixed colors are defined for each cylinder. According to the color information of each individual color channel, the coloring of the printing rollers takes place as a function of the respective associated color channel. With the inked printing rollers, a first printing decor can then be produced in the gravure printing method on a first carrier material with formation of, for example, a sample 1.
  • the color information separated and possibly processed in the color channels is combined to form a digital print file, that is to say the separation data created is combined to form a digital original for digital printing.
  • a second print decor is created on a second substrate using digital printing to form a pattern 2.
  • the present method allows the creation of an identical printed decoration on two substrates and the use of two different printing processes, here the gravure printing as an analog, inexpensive printing process and digital printing, wherein the printed images created by the two different printing processes do not differ.

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  • Printing Methods (AREA)
EP14193234.3A 2014-11-14 2014-11-14 Procédé de création d'au moins un décor imprimé destiné à être utilisé dans au moins deux procédés d'impression distincts et un dispositif d'exécution de ce procédé Active EP3020565B1 (fr)

Priority Applications (5)

Application Number Priority Date Filing Date Title
EP14193234.3A EP3020565B1 (fr) 2014-11-14 2014-11-14 Procédé de création d'au moins un décor imprimé destiné à être utilisé dans au moins deux procédés d'impression distincts et un dispositif d'exécution de ce procédé
PT141932343T PT3020565T (pt) 2014-11-14 2014-11-14 Processo para a produção de pelo menos uma decoração impressa para ser utilizada em pelo menos dois diferentes processos de impressão e um dispositivo para a execução deste processo
DK14193234.3T DK3020565T3 (en) 2014-11-14 2014-11-14 Method of producing at least one printing page decoration for use in at least two different printing methods and apparatus for practicing the method
ES14193234.3T ES2606187T3 (es) 2014-11-14 2014-11-14 Procedimiento para la producción de al menos una decoración de impresión para el uso en al menos dos procedimientos de impresión diferentes y un dispositivo para llevar a cabo este procedimiento
PL14193234T PL3020565T3 (pl) 2014-11-14 2014-11-14 Sposób wytwarzania przynajmniej jednego drukowanego dekoru do stosowania w przynajmniej dwóch różnych metodach druku i urządzenie do realizacji tego sposobu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP14193234.3A EP3020565B1 (fr) 2014-11-14 2014-11-14 Procédé de création d'au moins un décor imprimé destiné à être utilisé dans au moins deux procédés d'impression distincts et un dispositif d'exécution de ce procédé

Publications (2)

Publication Number Publication Date
EP3020565A1 true EP3020565A1 (fr) 2016-05-18
EP3020565B1 EP3020565B1 (fr) 2016-11-02

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EP14193234.3A Active EP3020565B1 (fr) 2014-11-14 2014-11-14 Procédé de création d'au moins un décor imprimé destiné à être utilisé dans au moins deux procédés d'impression distincts et un dispositif d'exécution de ce procédé

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EP (1) EP3020565B1 (fr)
DK (1) DK3020565T3 (fr)
ES (1) ES2606187T3 (fr)
PL (1) PL3020565T3 (fr)
PT (1) PT3020565T (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3900934A1 (fr) * 2020-04-21 2021-10-27 Flooring Technologies Ltd. Dispositif de génération d'une impression sur une matière d'impression et procédé de génération d'une pluralité de cavités sur une forme d'impression dotée d'une matrice magnétique
US20230081185A1 (en) * 2020-02-20 2023-03-16 Flooring Technologies Ltd. Method for Adopting Analogue Templates in Decor Printing
EP4152737A1 (fr) * 2021-09-20 2023-03-22 SURTECO GmbH Procédé de génération de données de gravure pour la gravure de cylindres de pression

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3470972B1 (fr) 2017-10-13 2022-03-02 Flooring Technologies Ltd. Procédé d'utilisation multiple de données d'impression numérique permettant de fabriquer des décors imprimés de haute qualité optique et/ou haptique sur un matériau de support
EP4002822A1 (fr) 2020-11-24 2022-05-25 Flooring Technologies Ltd. Procédé de génération et de comparaison des profils de couleurs
EP4068743A1 (fr) 2021-03-30 2022-10-05 SWISS KRONO Tec AG Procédé d'ajustement des paramètres d'imprimante d'une imprimante numérique

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1858244A1 (fr) 2006-05-16 2007-11-21 Flooring Technologies Ltd. Procédé de production d'un décor identique en utilisant un modèle imprimé tout comme dispositif correspondant
EP2233286A1 (fr) * 2009-03-24 2010-09-29 Hülsta-Werke Hüls GmbH & CO. KG Procédé de fabrication de corps de plaques dotés de feuilles imprimées
EP2431190A2 (fr) * 2010-09-17 2012-03-21 Theodor Hymmen Verwaltungs GmbH Procédé de fabrication d'une pièce usinée imprimée numériquement
EP2777942A1 (fr) * 2013-03-14 2014-09-17 Flooring Technologies Ltd. Procédé de production d'impressions décoratives de qualité identique indépendamment du procédé d'impression utilisé et dispositif destiné à la réalisation de ce procédé

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1858244A1 (fr) 2006-05-16 2007-11-21 Flooring Technologies Ltd. Procédé de production d'un décor identique en utilisant un modèle imprimé tout comme dispositif correspondant
EP2233286A1 (fr) * 2009-03-24 2010-09-29 Hülsta-Werke Hüls GmbH & CO. KG Procédé de fabrication de corps de plaques dotés de feuilles imprimées
EP2431190A2 (fr) * 2010-09-17 2012-03-21 Theodor Hymmen Verwaltungs GmbH Procédé de fabrication d'une pièce usinée imprimée numériquement
EP2777942A1 (fr) * 2013-03-14 2014-09-17 Flooring Technologies Ltd. Procédé de production d'impressions décoratives de qualité identique indépendamment du procédé d'impression utilisé et dispositif destiné à la réalisation de ce procédé
WO2014140252A1 (fr) 2013-03-14 2014-09-18 Flooring Technologies Ltd. Procédé de génération d'impressions de décors avec la même qualité quel que soit le procédé d'impression employé et dispositif de mise en œuvre dudit procédé

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230081185A1 (en) * 2020-02-20 2023-03-16 Flooring Technologies Ltd. Method for Adopting Analogue Templates in Decor Printing
US11876946B2 (en) * 2020-02-20 2024-01-16 Flooring Technologies Ltd. Method for adopting analogue templates in decor printing
EP3900934A1 (fr) * 2020-04-21 2021-10-27 Flooring Technologies Ltd. Dispositif de génération d'une impression sur une matière d'impression et procédé de génération d'une pluralité de cavités sur une forme d'impression dotée d'une matrice magnétique
EP4152737A1 (fr) * 2021-09-20 2023-03-22 SURTECO GmbH Procédé de génération de données de gravure pour la gravure de cylindres de pression

Also Published As

Publication number Publication date
ES2606187T3 (es) 2017-03-23
DK3020565T3 (en) 2017-02-13
PT3020565T (pt) 2017-02-13
EP3020565B1 (fr) 2016-11-02
PL3020565T3 (pl) 2017-04-28

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