EP1512531A1 - Système de régulation d'encrage pour machines d'impression - Google Patents

Système de régulation d'encrage pour machines d'impression Download PDF

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Publication number
EP1512531A1
EP1512531A1 EP03405669A EP03405669A EP1512531A1 EP 1512531 A1 EP1512531 A1 EP 1512531A1 EP 03405669 A EP03405669 A EP 03405669A EP 03405669 A EP03405669 A EP 03405669A EP 1512531 A1 EP1512531 A1 EP 1512531A1
Authority
EP
European Patent Office
Prior art keywords
color
printing
ink
zone
printed product
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.)
Withdrawn
Application number
EP03405669A
Other languages
German (de)
English (en)
Inventor
Urs Meier
Alexander Fach
Peter Kupferschmid
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.)
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
Original Assignee
ABB Research Ltd Switzerland
ABB Research Ltd Sweden
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 ABB Research Ltd Switzerland, ABB Research Ltd Sweden filed Critical ABB Research Ltd Switzerland
Priority to EP03405669A priority Critical patent/EP1512531A1/fr
Publication of EP1512531A1 publication Critical patent/EP1512531A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/045—Remote control of the duct keys
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F31/00—Inking arrangements or devices
    • B41F31/02—Ducts, containers, supply or metering devices
    • B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
    • B41F31/05—Positioning devices therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F7/00—Rotary lithographic machines
    • B41F7/02—Rotary lithographic machines for offset printing
    • B41F7/12—Rotary lithographic machines for offset printing using two cylinders one of which serves two functions, e.g. as a transfer and impression cylinder in perfecting machines

Definitions

  • the present invention relates to the field of Printing technology, in particular on offset printing of newspapers and magazines. She starts from a procedure and a device for monitoring the color scheme on a Printed product according to the preamble of the independent claims.
  • U.S. Pat. 4'649'502 becomes a color control system disclosed in which the printed product on-line with a transversely to the printing direction mobile photoelectric densitometer is scanned. This is a color zone on the Printing machine in several picture elements on the printed product disassembled. Actual target color deviations are for each Image element measured with specific weight factors weighted and finally for each color zone to one Zone-specific color quality value added up. To this Way can also on test pictures or color marks dispensed with on the printed product. However, that is the scanning device mechanically complex, reduces the Measuring accuracy and recorded only a small area of the printed product.
  • U.S. Pat. 4'660'159 becomes a relative Color control system disclosed that with densitometric Scanning devices online at the printing press and off-line for reference measurements. In turn are defined on selective printing surfaces picture elements, densitometrically measured and for each color zone integrated. In the off-line measurement at the stationary Original image are also used to increase the measurement resolution defined in each pixel sub-picture elements whose Color values are measured integrally over the entire sub-pixel area and summed up to a color value of the picture element. With the on-line scanning device becomes again only a small one Area fraction of the printed product recorded.
  • the above systems are exclusively densitometric Measurements, if necessary with CCD camera and Color filters, based.
  • the narrow-band densitometric Measurements have the advantage that immediate the ink quantities are determined.
  • the object of the present invention is a method and an apparatus for controlling the coloring in one To specify a printing press and a printing press, which themselves characterized by a simplified function and design. This object is achieved by the Features of the independent claims solved.
  • the invention is a method for controlling the coloring in a printing machine, each ink from a color control with multiple Color zones is regulated, with an actual color scheme on the Print product online while printing with help a color recognition device is determined, a target color is determined on an original artwork and off the resulting actual / target deviations for at least an ink and color zone a color correction signal for generates the associated color control of the printing press is, wherein the color recognition device a variety of Includes color sensors for color measurement, stationary at the Printing press are arranged and with which the actual coloring areal over an entire, with color printed width of the printed product is measured and wherein for each color zone of the printing press at least one fast primary colorimetric signal is detected for at least one of the color zones from the primary colorimetric signal by integration along a printing direction over one specifiable color image area of the printed product in the Color zone is formed an integral color measurement signal from the integral color measurement signal for at least one printing ink an entire actual area coverage of the color image area in the color zone is determined and with
  • the original template may be in the form of an OK copy, a Pre-press, a printing plate, digital data or otherwise be given.
  • the color sensors can at least one color and preferably several colors including black or gray. Position detectors for localization of reference color marks on the printed product not required.
  • the arrangement of a variety of color sensors allows it with a stationary apparatus the Full coverage of the entire print width visually.
  • the acquisition of fast colorimetric signals allows the Print product also covering the entire printing direction to monitor. Fast here means that at least several or a few lines of text together detectable color measurement signal, this at typical Print speed of up to 15 m / s or more.
  • the Color image areas can be characterized by their position, by characteristic Characteristics in the colorimetric signal or otherwise be specified.
  • the integration step becomes the large flood of data as directly as possible to the color sensors massively reduced.
  • the integral color measurement signal provides a very good measure of the total actual area coverage with a printing ink. Due to the fast detection of the primary color measurement signal is a high accuracy of the achieved integral color measurement signal. The resulting Color measurement signal allows exact control and regulation the coloring.
  • the embodiment according to claim 2a has the advantage that such color sensors can be used which has a spectral sensitivity similar to that of the human eye, so for example Red, green and blue are delicate.
  • the embodiment according to claim 2b has the advantage that a wide pressure path through a variety of Color sensors with great accuracy across the entire width is detected.
  • the embodiment according to claim 3 has the advantage that the printing web with high spatial resolution on the entire printed area is recorded.
  • the invention consists in a Device for controlling the coloring in a printing machine, in particular for carrying out the method according to one of the preceding claims, wherein the printing press For each ink a color control with several color zones comprising a color recognition device for Determining an actual color on a printed product on-line during the printing process and a control unit for determining a deviation of the actual coloration from a target color and for generating color correction signals for at least one printing ink and ink zone for controlling at least one of the inking stations, wherein Furthermore, the color recognition device a variety of color sensors for color measurement, which is stationary at the printing press are arranged and with which the actual coloring areal over an entire, printed with color Width of the printed product is measurable and where the Control unit detection means for at least each a fast primary colorimetry signal per color zone, integrator for at least one color zone for integration the primary color measurement signal selectively over a predetermined Color image area of the printed product in the Color zone and calculating means for the determination of an entire Is area
  • the arrangement of several color sensors in a color measurement module according to claim 8 has the advantage of a compact design and easy and safe installation on the press.
  • control unit By the control unit according to claims 10-11 will have enough processing power for a total area monitoring and for targeted data reduction before the integration step made available.
  • the invention is also a printing press with an inventive device for ink control.
  • Fig. 1 shows for each ink F1, ..., F4 Printing unit 1a with a color unit 1b or a color control 1b.
  • the printed product 3 passes in the printing direction 4 consecutively the printing units 1a and so printed in several colors.
  • the order of the printing units 1a, 1b is not mandatory.
  • Fig. 2 shows schematically the color flow in a per se known color unit 1b, which extends across the entire paper web extends.
  • a segmented Color panel 6 adjusted so that out of the paint reservoir 8 for each color aperture segment (corresponding to a Color zone 12) a desired amount of ink on the Ink roller 8 is transferred.
  • the printing ink is about diverse Rollers 2, in particular via ductor rollers 9, vibrator rollers, a pressure roller 10 with printing plates and a Printing cylinder 11 on the printed product 3, z. B. Newsprint 3, printed.
  • the vibrator rollers oscillate transversely to the roller mill and distribute the printing ink F1, ..., F4 of one color zone 12 to the other, so a more homogeneous color distribution transverse to the individual color segments 12 receive.
  • For simultaneous two-sided printing is in Normally a corresponding printing unit 1a and color unit 1b also arranged above the pressure medium 3, but not shown here.
  • Fig. 3 shows schematically in plan view a color actuator 1b for a web offset press 1.
  • Many color screws 5 are on the color actuator 1b transverse to the printing paper. 3 arranged so as to reduce the amount of paint applied to the rollers 2 is transmitted to control.
  • the amount of color screws 5 can vary depending on the printing press 1; usually For a 36 inch web width, 24 color screws 5 are used used.
  • a color zone 12 are defined. All color zones 12 together cover the entire with printing width of the printed matter from.
  • the amount of color, which ultimately via the roller system 2 of the printing machine 1 is applied to the printing medium 3, can by the adjustment of the distance between the diaphragm segment edge 13 of the color panel 6 and the outer surface of the ink take-up roller 8 are changed.
  • the position of each one Aperture segment 12 with respect to the ink roller 8 and Thus, the amount of ink which on this print web part 3 ' can be applied through the interlocking 1b for each Color zone 12 can be set independently.
  • Fig. 4 shows an entire color and printing unit 1a, 1b, in which a printing ink F1, ..., F4 of the associated color actuator 1b is controlled zone by zone.
  • a Target coloration determined on an original document 18a, 18b .
  • the original artwork 18a, 18b can z.
  • the color recognition device 21 now comprises a plurality of color sensors 24a, 24b, 24c for color measurement 16, which is stationarily arranged on the printing machine 1 are and with which the actual coloring areal on one total printed width of the printed product 3, wherein for each color zone 12 the printing press 1 at least a fast primary Color measurement signal 26 is detected, for at least one of Color zones 12 from the primary color measurement signal 26 through Integration along the printing direction 4 over a predefinable Color image area 3b of the printed product 3 in the Color zone 12 an integral color measurement signal 27 formed is, from the integral color measurement signal 27 for at least an ink F1, ..., F4 an entire actual area coverage of the color image area 3b in the ink zone 12 is determined and using the actual area coverage, the color correction signal 28 for the ink zone 12 and ink F1, ..., F4 generated becomes. So it's going to be one over a big one Print area 18c of printed product 3 integrated Color measurement signal 27 an entire actual area coverage of the Pressure range 18c determined and from the entire
  • Fig. 4 shows schematically an embodiment for the Process steps: optically large-area or full-page Detection of the print image 18c with the color recognition device 21 'comprising at least one color measuring module 21, passing the time-dependent primary color measurement signal 26 to the Color measuring unit 16a for signal acquisition and preprocessing and to the integration and image processing unit 16b for forming the integral color measurement signal 27.
  • the signal processing and in particular integration of primary color measurement signals 26 may be analog-electric in the Measuring electronics 25 of the measuring module 21 (FIG. 5) and / or digitally performed in the color control system 15, 16a, 16b (FIG. 4) become.
  • the digital system integration of the prepress enable latest computer-to-plate technologies a direct transfer of the original image information 18a on the pressure plate 18b.
  • the use of digital Pre-press data allows a simpler and easier way more precise calculation of the printing plate color assignment or Printing plate coverage.
  • the printing plate surface coverage is the ratio between colored area on the Plate 18b and the total plate surface, delivering so an optimal measure of the required amount of color for the Print of the picture 18c.
  • From the original picture 18a or the printing plate 18b become target image data in the color control unit 17 fed in there and with the integral color measurement signals 27 compared.
  • the Data if necessary, prepared so that they themselves to the same colorimeters, preferably to the entire area coverage in the given color image area 3b, Respectively.
  • Color correction signals 28 generated and via system control 14 to the color and printing unit 1b, 1a for zoning Control of at least one ink F1, ..., F4 forwarded.
  • the color control unit 15 compares the actual coloration with the target coloration in particular under consideration of the common models to description of printing presses 1 and provides the color correction signals 28 the printing system 14 in a suitable form available.
  • the actual / target comparison can be determined by a correlation between the measured area coverage of the entire printing area 18c or the major larger areas 3b and the target area coverage determined by the prepress data respectively.
  • the whole Print image 18c optimally adapted to the pressure specifications 18a and not just individual smaller areas of the print image 18c.
  • the large-area or whole-area measurement the ink coverage covers the whole required amount of ink for the print image 18c, so that the amount of color not from small control color fields extrapolated to the whole page layout or area coverage must be, since the color trolleys 1b already according to the entire area coverage.
  • the original artwork 18a, 18b is the same and in particular calibrated color sensors 24a, 24b, 24c have been scanned as the print image 18c.
  • the original artwork 18a, 18b can also be detected with a CCD camera become.
  • the image or color data of the original image 18a can print directly in electronic form from the prepress, by scanning the printing plates 18b or by direct Track measurement of an OK copy can be obtained. Prefers the color gets better with an accuracy than measured by those of the eye. Then become target area coverage integral to the color image areas of interest 3b determined.
  • Color values are preferred with the color sensors 24a, 24b, 24c RGB measured on the printed product 3, where for belonging RGB color values, which are the coordinates of a form abstract color point in a color space, respectively detects the primary color measurement signal 26 and the integral Color measurement signal 27 is formed and from the integral Color measurement signals 27 associated color values RGB the actual area coverage for at least one of the inks F1; ...; F4 is calculated as the actual coloration in the Regulatory procedure is used.
  • the actual color scheme Preferably, the entire area coverage used by the integral color measurement signal is detected very accurately, since these Sizes are approximately proportional to each other.
  • RGB color values can also reflectivity, optical density or color values expressed in one of common color standards (eg status T, XYZ, CIELUV or CIELAB). Different methods for Conversion of RGB reflection values in XYZ or CIELAB and CIELUV, and thus are in ink coverages known and described.
  • the color zones 12 defines a plurality of image zones 19, wherein for each image zone 19 separate primary color measurement signals 26 are detected and the integral color measurement signal 27 by integration and Addition of the primary color measurement signals 26 is formed.
  • the primary color measurement signal 26 becomes so fast or faster that captures at least individual lines of text and in particular at least individual letter thicknesses can be detected. Also should that primary color measurement signal 26 along the printing direction 4 continuously recorded and selectively integrated if required become, so that belonging to the color zone 12 Printing web part 3 'on the printed product 3 in the printing direction 4 is monitored over its entire surface.
  • the integration can take place over an entire print image 18c of the Printed product 3 and in particular over several in Printing direction 4 consecutive entire print images 18c of the printed product 3 are executed. Thereby becomes exactly the relevant ink coverage, namely the area coverage over an entire print image 18c or for example over a whole pressure roll rotation, d. H. over two on the pressure roller 11 in the printing direction 4th consecutively arranged printed images 18c, metrologically detected.
  • the primary color measurement signal 26 in FIG Printing areas 3a with only full-tone text on the Printed product 3 excluded from further processing become.
  • the integral color measurement signal 27 for each color image area 3b of the printed product 3 are formed.
  • the method is preferred for all ink zones 12 in one the inking stations 1 b of the printing press 1 and / or for all inking stations 1b and thus printing inks F1, ..., F4 of Printing machine 1 applied. Then for each color zone 12 and / or ink F1, ..., F4 from integral color measurement signals 27 actual area coverage determined and by comparison with the corresponding target area coverage the zone and ink specific color correction signals 28 generated.
  • the invention also provides a device for Execution of the procedure.
  • the device includes besides the color recognition device 21 ', a control unit 15, 25th for determining a deviation of the actual coloration from a Target coloration and for generating color correction signals 28 for at least one ink F1, ..., F4 and Color zone 12 for controlling at least one color stop 1b.
  • the color recognition device 21 comprises a plurality of color sensors 24a, 24b, 24c for color measurement 16, which is stationarily arranged on the printing machine 1 are and with which the actual area coverage with a printing ink F1, ..., F4 areal on a whole, with color printed width of the printed product 3 is measurable
  • the control unit 15, 25 comprises detection means 16a, 25 for at least one fast primary colorimetric signal 26 per color zone 12, integrator 16b, 25 for at least one color zone 12 for integration of the primary Color measurement signal 26 selectively over a predetermined color image area 3b of the printed product 3 in the ink zone 12th and computing means 17 for determining a total actual area coverage for at least one of the inks F1, ..., F4 in the color image area 3b in the ink zone 12 and the Generation of the Color Correction Signal 28 for the Ink Zone 12 and the ink F1, ..., F4 from the actual area coverage and an associated target area coverage.
  • the color recognition device comprises 21 'for a color zone 12 of the printing press 1 at least one separate stationary color measurement module 21 with at least one color sensor element 24 and with a Imaging optics 22.
  • the color measurement module 21 of a color zone 12 more color sensor elements 24, which are arranged in an array 23 are that through the imaging optics 22 and each Color sensor element 24 each have a parallel image zone 19th is defined on the printing web part 3 'of the ink zone 12 and by the parallel image zones 19 detected by the array 23 an entire width of the printing web part 3 'optically full coverage is detectable.
  • the imaging optics 22 is simply a common lens 22, through which an image zone for each color sensor element 24 19 on the print web part 3 'in the illuminated color measurement area 20 of the color measuring module 19 is defined.
  • the color sensor elements 24 in turn can simply linearly side by side be arranged to provide a nationwide coverage of the Color zone 12 with parallel image zones 19 to achieve. It is also possible, the color sensor elements 24 offset from each other to arrange (not shown).
  • the color sensor element 24 is for each measuring color value RGB at least one color sensor 24a, 24b, 24c present and arranged so that by the imaging optics 22 a belonging to the ink zone 12 printing web part 3 'on the printed product 3 nationwide optically from the Color sensors 24 a, 24 b, 24 c of the color sensor element 24th is detectable.
  • the color sensors 24a, 24b, 24c may be CMOS based Detectors 24a, 24b, 24c, the good image properties and have low initial cost.
  • the Color sensors 24a, 24b, 24c may also be single diodes 24a, 24b, 24c in a patterned photodiode.
  • a structured photodiode covers on a monolithic Chip typically three single diode 24a, 24b, 24c, the are readable via separate electrical connections and through structured optical filters color-selective spectral Have sensitivities.
  • the individual diodes 24a, 24b, 24c can z. B. be square and on a matrix be arranged in the photodiode chip or be hexagonal and be arranged honeycomb.
  • the color sensor element 24 may include one or more patterned photodiodes.
  • the reference on lines of text and letter thicknesses here exclusively, to a relevant to the human eye indicate optical-spatial resolution.
  • the color assessment however, full-tone text is usually not mandatory.
  • the control unit 15, 25 and in particular the detection means 16a, 25 enough Have capacity for data acquisition and data processing, to continuously capture the primary Color measurement signals 26 along the printing direction 4 and a complete monitoring of all to the ink zones 12th belonging print web parts 3 'on the printed product 3 to guarantee.
  • the integration means 16b, 25 can in the color control system 15 and / or directly in the color sensor element array 23 to be available. They preferably comprise discrimination agents for automatic recognition of the predefinable color image areas 3b moved in the direction of printing 4 Printed product 3 and for the elimination of the primary color measurement signal 26 outside the color image areas 3b.
  • the control unit 15, 25 and in particular the integration means 16b, 25 and the Computing means 17 sufficient capacity for data processing to provide the color correction signal 28 for each color zone 12 and / or for each ink F1, ..., F4 to produce.
EP03405669A 2003-09-02 2003-09-02 Système de régulation d'encrage pour machines d'impression Withdrawn EP1512531A1 (fr)

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EP03405669A EP1512531A1 (fr) 2003-09-02 2003-09-02 Système de régulation d'encrage pour machines d'impression

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EP03405669A EP1512531A1 (fr) 2003-09-02 2003-09-02 Système de régulation d'encrage pour machines d'impression

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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1857280A2 (fr) 2006-05-15 2007-11-21 Koenig & Bauer Aktiengesellschaft Presse rotative dotée d'au moins un système d'encrage et un système de mesure en ligne des couleurs
DE102006022530A1 (de) * 2006-05-15 2007-11-22 Koenig & Bauer Aktiengesellschaft Rollenrotationsdruckmaschine mit mindestens einem Farbwerk und mit einem Inline-Inspektionssystem
DE102007012736A1 (de) * 2007-03-16 2008-09-18 Man Roland Druckmaschinen Ag Verfahren zur Regelung von drucktechnischen Prozessen
US7464645B2 (en) 2004-03-23 2008-12-16 Koenig & Bauer Aktiengesellschaft Printing machines having at least one machine element that can be adjusted by a setting element
EP2463102A3 (fr) * 2010-12-09 2012-09-05 Goss International Americas, Inc. Controle de couleur en boucle fermée de regions selectionnées au moyen de regions aplat dans des images.
DE102019200185A1 (de) * 2019-01-09 2020-07-09 Heidelberger Druckmaschinen Ag Färbungskompensation im Offsetdruck

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390958A (en) * 1979-12-15 1983-06-28 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Electro-optical measuring apparatus to cover zones of different widths and obtain computed utilization signals for printing apparatus
US4649502A (en) 1983-11-04 1987-03-10 Gretag Aktiengesellschaft Process and apparatus for evaluating printing quality and for regulating the ink feed controls in an offset printing machine
US4660159A (en) 1983-11-04 1987-04-21 Gretag Aktiengesellschaft Process and apparatus for the regulation of ink feed controls in an offset printing machine
DE4242683A1 (de) * 1992-12-17 1994-06-23 Contraves Gmbh Verfahren zum Steuern eines Farbauftrages in einer Druckeinheit
US5967050A (en) 1998-10-02 1999-10-19 Quad/Tech, Inc. Markless color control in a printing press
US6119594A (en) * 1993-06-25 2000-09-19 Heidelberger Druckmaschinen Aktiengesellschaft Method for regulating inking during printing operations of a printing press
US20030005841A1 (en) * 2001-07-02 2003-01-09 Matthias Riepenhoff Measurement and regulation of inking in web printing

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4390958A (en) * 1979-12-15 1983-06-28 M.A.N.-Roland Druckmaschinen Aktiengesellschaft Electro-optical measuring apparatus to cover zones of different widths and obtain computed utilization signals for printing apparatus
US4649502A (en) 1983-11-04 1987-03-10 Gretag Aktiengesellschaft Process and apparatus for evaluating printing quality and for regulating the ink feed controls in an offset printing machine
US4660159A (en) 1983-11-04 1987-04-21 Gretag Aktiengesellschaft Process and apparatus for the regulation of ink feed controls in an offset printing machine
DE4242683A1 (de) * 1992-12-17 1994-06-23 Contraves Gmbh Verfahren zum Steuern eines Farbauftrages in einer Druckeinheit
US6119594A (en) * 1993-06-25 2000-09-19 Heidelberger Druckmaschinen Aktiengesellschaft Method for regulating inking during printing operations of a printing press
US5967050A (en) 1998-10-02 1999-10-19 Quad/Tech, Inc. Markless color control in a printing press
US20030005841A1 (en) * 2001-07-02 2003-01-09 Matthias Riepenhoff Measurement and regulation of inking in web printing

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7464645B2 (en) 2004-03-23 2008-12-16 Koenig & Bauer Aktiengesellschaft Printing machines having at least one machine element that can be adjusted by a setting element
EP1857280A2 (fr) 2006-05-15 2007-11-21 Koenig & Bauer Aktiengesellschaft Presse rotative dotée d'au moins un système d'encrage et un système de mesure en ligne des couleurs
DE102006022530A1 (de) * 2006-05-15 2007-11-22 Koenig & Bauer Aktiengesellschaft Rollenrotationsdruckmaschine mit mindestens einem Farbwerk und mit einem Inline-Inspektionssystem
DE102006022529B4 (de) * 2006-05-15 2009-05-20 Koenig & Bauer Aktiengesellschaft Rollenrotationsdruckmaschine mit mindestens einem Farbwerk und mit einem Inline-Inspektionssystem
EP1857280A3 (fr) * 2006-05-15 2011-04-06 Koenig & Bauer Aktiengesellschaft Presse rotative dotée d'au moins un système d'encrage et un système de mesure en ligne des couleurs
DE102006022530B4 (de) * 2006-05-15 2014-06-26 Koenig & Bauer Aktiengesellschaft Rollenrotationsdruckmaschine mit mindestens einem Farbwerk und mit einem Inline-Inspektionssystem
DE102007012736A1 (de) * 2007-03-16 2008-09-18 Man Roland Druckmaschinen Ag Verfahren zur Regelung von drucktechnischen Prozessen
EP1990196A3 (fr) * 2007-03-16 2014-04-23 manroland AG Procédé destiné à la régulation de processus d'impression
EP2463102A3 (fr) * 2010-12-09 2012-09-05 Goss International Americas, Inc. Controle de couleur en boucle fermée de regions selectionnées au moyen de regions aplat dans des images.
US8763528B2 (en) 2010-12-09 2014-07-01 Goss International Americas, Inc. Closed loop color control of selected regions using solid color regions within images
DE102019200185A1 (de) * 2019-01-09 2020-07-09 Heidelberger Druckmaschinen Ag Färbungskompensation im Offsetdruck

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