EP2762316B1 - Procédé de régulation d'un paramètre d'un dispositif d'encrage - Google Patents

Procédé de régulation d'un paramètre d'un dispositif d'encrage Download PDF

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Publication number
EP2762316B1
EP2762316B1 EP14151603.9A EP14151603A EP2762316B1 EP 2762316 B1 EP2762316 B1 EP 2762316B1 EP 14151603 A EP14151603 A EP 14151603A EP 2762316 B1 EP2762316 B1 EP 2762316B1
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EP
European Patent Office
Prior art keywords
inking unit
ink
control
roller
calculated
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.)
Not-in-force
Application number
EP14151603.9A
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German (de)
English (en)
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EP2762316A3 (fr
EP2762316A2 (fr
Inventor
Stefan Albrecht
Norbert Rothenberger
Martin Schmid
Simon Berger
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.)
Manroland Goss Web Systems GmbH
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Manroland Web Systems GmbH
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Publication date
Application filed by Manroland Web Systems GmbH filed Critical Manroland Web Systems GmbH
Publication of EP2762316A2 publication Critical patent/EP2762316A2/fr
Publication of EP2762316A3 publication Critical patent/EP2762316A3/fr
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Publication of EP2762316B1 publication Critical patent/EP2762316B1/fr
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Classifications

    • 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
    • B41F31/022—Ink level control devices
    • 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
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2231/00—Inking devices; Recovering printing ink
    • B41P2231/12—Axially segmented ink blades
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00—Arrangements for the operation of printing presses
    • B41P2233/10—Starting-up the machine
    • B41P2233/11—Pre-inking

Definitions

  • the invention relates to a method for controlling at least one control parameter from a number of parameters of an inking unit of an offset printing machine. Furthermore, the invention relates to an offset printing machine with at least one inking unit, which has a control unit for carrying out the method.
  • the control parameter is an opening of a color meter and / or a rotational speed of a Farbduktors. This can be used to set the color quantity and color density.
  • Such methods are used in printing machines, especially in offset printing presses, during startup and during production. In such machines, one or more colors are successively applied to the substrate, typically paper, cardboard or foil. The amount of paint to be applied depends, for example, on the subject, the type of color, the amount of the color pigments contained therein or the personal taste of the client.
  • the aim of each print job is to reach the desired quantity of ink on the printed copy as quickly as possible and to keep it constant during further operation.
  • the inking unit of a printing press is based on a paint container in which the printing ink is stored. From this container, the ink is typically taken with a slowly rotating roller, the ink ductor. The ink layer thickness on the ductor is determined by adjusting elements, the color knives. The opening of the colorimeters may typically be zonal, i. be set differently over the width of the substrate. This takes into account the different color requirements of the subjects across the width.
  • the ink fountain roller with a fixed-pitch rotating roller, the film roll, or with a pendulum-mounted roller, the squeegee, removed.
  • the color film is then evened out.
  • some rollers, the ink drivers are additionally oscillated transversely to the direction of rotation. Due to the large number of rollers, the color film is reduced in its thickness until it reaches its final thickness. In offset printing, the application of paint to the substrate is typically about 1 ⁇ m.
  • the inking unit has the task of storing color and replacing it in the roller mill where color has been removed by the subject.
  • the operator can typically open and close the colorimeters in each color zone or vary the speed of rotation of the ink fountain. It should also be noted that through the use of Water in wet offset, the color density is also slightly reduced because the ink is diluted with fountain solution.
  • FIG. 1 shows such a control loop.
  • an achieved actual density 14 with sensors or high-resolution cameras in control fields or in the image is measured at the end of a printing process 16 and compared with a desired density 11.
  • a calculated density difference 12 is then used as input to a controller 15.
  • the controller 15 generates actuating signals 13, typically values for the opening of the colorimeters, and thus intervenes in the printing process 16.
  • the document DE 698 10 385 discloses a prior art PID controller as a typical implementation for such a controller.
  • FIG. 2 shows qualitatively a typical, regulated density progression 21. After the start of the machine, also referred to as the start-up phase, a tolerance band of the color density is reached after N 21 copies and good copies are printed. The specimens outside the tolerance band around the target density are not salable as waste.
  • FIG. 2 shows the typical regulated density profile at low area coverage with curve 23.
  • a manual intervention of the operating personnel is required in the prior art at very low surface coverage.
  • FIG. 3 shows this with the example of an inking unit of a web offset press.
  • Anstellsequenz is between the pivoting of a film roll 32 to a ductor 31, the pivoting of applicator rollers 33 to a plate cylinder 34 and the pressure-on-places of rubber cylinders 35 to the substrate web 36.
  • Simple color density control systems after FIG. 1 do not take advantage of the extended possibility to intervene in the color flow.
  • the DE 698 10 385 T2 discloses a method for color control in a printing press, in which first a color density is measured in the printed image, wherein then the measured color density is converted into a color layer thickness value to ensure the linearity of the control parameters using a calculation algorithm. The control of the color density then takes place with the converted value.
  • the DE 101 05 990 A1 teaches a method for controlling parameters of a color layer at a selected location in the printing unit of a printing press, wherein the printing machine at least one color source for generating the ink layer on a transport device, where the Dosierieren for controlling the Farbrrelles on the transport device are adjustable in zones. For each zone of the color layer, nominal values of parameters are determined on the basis of measured image data.
  • the document EP 1 671 789 discloses a control method for an inking unit in which a color density measured in peripheral areas is modified by means of a model of the respective inking unit or on the basis of data of the subject. This method only works, provided that valid measured values are available, and is therefore not suitable for the Anstellsequenz when commissioning an inking unit. It is an object of the invention to provide a method for controlling at least one parameter on which the ink density in the printing machine depends, during startup and also during the printing run. Furthermore, it is an object of the invention to provide a printing machine with an inking unit having a control unit for carrying out such a method. With regard to the method, this is achieved according to the invention by a method according to claim 1. With regard to the printing machine, this is achieved by an offset printing machine according to claim 13. Advantageous developments can be taken, for example, the respective subclaims.
  • the invention relates to a method for controlling at least one control parameter from a number of parameters of an inking unit of an offset printing machine wherein the parameters of the inking unit, which may also be control parameters, include an opening of a color meter or a rotational speed of a Farbduktors, based on at least the control parameter is calculated by means of an inking model, a calculated value of a color density on a substrate to be printed by the printing press, and instead of an actual value of the calculated value is used as an input variable for controlling, wherein at least temporarily the calculated value based solely on a number of parameters of the inking unit is calculated, wherein a control parameter is the rotational speed of a Farbduktors and / or the opening of at least one colorimeter.
  • a number within the scope of this application is understood to mean a value of one or more. It should also be understood that the calculation of a value closely corresponding to the color density, for example, the color thickness, is considered to be equivalent to the calculation of the color density.
  • a parameter is understood to mean a parameter which is regulated by a controller.
  • the term exclusively based on a number of parameters of the inking unit is understood to mean, in particular, that no measured value of a color density or a similar size is used as the input variable of the model. Nevertheless, constants, formulas, equations, rules of calculation, and the like may be used in the model.
  • the method according to the invention was considered not executable before the priority date of this application. This is because to control an inking unit, a calculated color density value must be available in real time.
  • all models known prior to the priority date are based on systems theory models that are based on the known laws of continuum mechanics and are based, for example, on the conservation of mass.
  • To create such a model appropriate system states for the ink layer thicknesses must be introduced. The simplest models arise when the investigation is limited to a steady-state operation. Along the surface of a roller then the ink layer thickness between the contact points to adjacent rollers assumed to be constant. At the contact points themselves, paint is either added or removed. Therefore, to create such a model, for each contact point between two adjacent rolls, the mass balance of the incoming and outgoing color streams must be established.
  • FIG. 4 shows a section of an inking unit of a web-fed printing machine with registered states of the ink layer thickness.
  • the ink layer on a film roll 41 before contact with a ductor 40 has the thickness t 1 (1)
  • the ductor 40 has the thickness t 2 (2).
  • Part of this ink layer is by cleavage to a transfer roller 42 from.
  • the transfer roller 42 in turn is a part of their color to a roller 43 from.
  • the ratio of the two outgoing ink layer thicknesses t 3 (3) and t 1 (1) is usually described by a cleavage factor k.
  • the clipping numbers k are assumed to be close to 0.5.
  • FIG. 5 shows, for example, the extended for a time-dependent simulation, from FIG. 4 already known system model.
  • the ink layer thickness t 3 (3) must be split into a paint layer thickness (3.1) immediately after contact between roller 41 and roller 42 and into a paint layer thickness (3.2) immediately before contact between roller 42 and roller 43.
  • the remaining ink layer thicknesses are split into one part after the last contact with an adjacent roller and into one part before contact with the next adjacent roller.
  • a point seen later in the direction of rotation assumes the ink layer thickness of a point in front offset by a dead time T.
  • the dead time T is dependent on the rotational speed of the roller 42 and the angle between the contact points to the roller 41 and the roller 43rd
  • the optimal inking strategy can be determined and carried out.
  • the waste can be minimized and there are significant cost advantages for the customer and user.
  • the controller structure can be substantially simplified. Since fewer measurement points are required per unit of time, it is possible to resort to simpler and more cost-effective measuring heads with a lower measurement frequency.
  • the systems can be designed to be traversing despite the fact that the target thickness is reached more quickly and the number of measuring heads can be considerably reduced. This results for the machine manufacturer and especially for the customer considerable cost advantages.
  • Another advantage of this procedure is that the color density can be determined at any time, even if, for example, the expression for detecting the actual density is not yet sufficient. Therefore, the proposed method can be used both for starting the machine and for the production printing.
  • the basis of the control is a simulation model, which calculates the color density process-parallel in real time. Subsequently, a control strategy can be justified on the simulated values with which, for example, it is possible to intervene in the parameters color zone opening, ink ductor speed, dampening duct speed or in the setting sequence.
  • the calculation model can be designed as complex as you like. A limitation results solely from the real-time requirement, i. the simulation of a time step in the model must not take longer than the real time step.
  • an empirical inking model based on a control-technical transfer element is preferably used. As recognized by the present inventors, this meets the requirements that it be sufficiently accurate and yet computationally manageable.
  • the inking unit model preferably also has a deadtime element which reflects the transit time of the ink from a color container from changing the control parameter until reaching the first contact point to the film roller (32) or to the squeegee roller.
  • a deadtime element which reflects the transit time of the ink from a color container from changing the control parameter until reaching the first contact point to the film roller (32) or to the squeegee roller.
  • the inking model further comprises a dead time element reflecting the transit time of a print copy between printing and measurement.
  • a dead time element reflecting the transit time of a print copy between printing and measurement.
  • control-technical transmission element is a PT 1 element. It has been shown that this already gives good results for a regulation.
  • control-technical transfer member is a PT 2 member. This provides even better results in the application because additional system inertia is taken into account. Such elements take into account the finite response time of the color density on the substrate to a change of the control parameter, as far as it also occurs in the theoretical case of the negligibility of the already mentioned dead times.
  • the calculated value is calculated exclusively based on a number of parameters of the inking unit, at least until a measured value of the color density on the substrate can be measured. This is typically the case when the color density is large enough to be accessible to measurement by a sensor or camera used.
  • the time required to obtain a color density within a tolerance band can be assumed, as already described with reference to FIG FIG. 2 has been described.
  • the control according to the invention can be used precisely in the time range in which, in the absence of useable measured values, regulation has hitherto been impossible, which in turn can significantly reduce the waste rate.
  • a measured value of the color density on the substrate is measured and the inking model is adjusted based on the measured value. This can be done, for example, by correcting the calculated value by an additive value in order to adapt the calculated value to the measured value at the time of the measurement. Alternatively it can be more complex in the Injection model are intervened.
  • the measurement is preferably carried out in a region downstream of the inking unit. By comparing with a measured value, the accuracy of the control can be improved. Compared to a measurement-based control, however, considerably less measuring points are sufficient in the present case, so that a considerably less complicated measuring technique is sufficient.
  • a sensor in the region downstream of the inking unit can traverse the printing web in the transverse direction and thus be used for measuring at several locations. Also, the use of a less fast and thus cheaper sensor is sufficient.
  • a sensor is for example in FIG. 3 shown by reference numeral 37.
  • a film or lifting roller of the inking unit is pivoted to the ink ductor when the calculated value exceeds a predetermined limit.
  • an applicator roll can be pivoted to a plate cylinder when the calculated value exceeds a predetermined limit.
  • a blanket cylinder can be pivoted to the substrate if the calculated value exceeds a predetermined limit.
  • the invention further relates to an offset printing machine with an inking unit, which has at least one ink fountain roller and an associated colorimeter, wherein at least one rotational speed of the ink fountain roller and / or an opening of the colorimeter is adjustable as a control parameter.
  • an inking unit which has at least one ink fountain roller and an associated colorimeter, wherein at least one rotational speed of the ink fountain roller and / or an opening of the colorimeter is adjustable as a control parameter.
  • a control unit with a regulator and an inking unit model, as well as a sensor traversing or traversing the printing web in a region downstream of the inking unit are preferably provided. These are designed to carry out a control method according to the invention in order to set at least one rotational speed of the ink ductor and / or an opening of the colorimeter as a control parameter.
  • the printing machine according to the invention makes use of the already mentioned advantages of the method according to the invention.
  • FIG. 6 shows the schematic structure of a controller structure according to the invention.
  • the simulation model 18 makes use of the available process data 13, ie the parameter of the inking unit.
  • process data 13 ie the parameter of the inking unit.
  • these are, for example, the already mentioned, typical parameters opening of one or more colorimeters, rotational speed of a Farbduktors, rotational speed of a Feuchtduktors or the Anstellschreib of Film roller or squeegee roller, applicator roller or blanket cylinder.
  • any further process variables such as temperatures, properties of paper or ink, dampening parameters, properties of printing blankets or other printing materials, etc., can additionally be made available to the simulation model.
  • the simulation model calculates a calculated color density 20 as an estimate of the actual color density.
  • the simulated and the real values are approximately the same. Therefore, a conventional control loop can be constructed, but the calculated values are made available for comparison with the setpoint value 11.
  • a discrepancy between actual and calculated color density can occur over a longer period of time. It can therefore be measured from time to time with a simple measuring device, the actual color density and corrected the model according to the measured value. Since the measurement data are required only at longer time intervals, during which typically a multiplicity of calculated values is calculated, simpler sensor systems or camera systems with a lower temporal resolution can be used. However, the use of the simulation model is particularly advantageous, in particular when starting up the inking unit, because there are still no valid measured values available.
  • T is the time constant of the PT 1 element
  • K is the amplification factor. Both quantities can be easily identified from measurement data.
  • the PT 1 member other sizes, such as the ink layer thickness on the substrate instead of the density or the ink layer thickness on the ductor instead of the volume flow, be set in proportion and these sizes are converted accordingly by an additional block.
  • FIG. 7 for the empirical inking model in a first embodiment in front of the PT 1 member 18.2 additionally provided a deadtime element 18.1. This records the time from the location of the colorimeter or from changing the speed of the ink fountain roller to reaching the first contact point either to the film roll or to the squeegee roll. Because of the slowly rotating ductor, it is advantageous if this dead time is not neglected in the calculation model.
  • FIG. 8 For machines with a longer transport distance between printing unit and the location of the color density is appropriate FIG. 8 to take account of the time shift between pressure and measurement in an alternative embodiment after the PT 1 -Glied 18.2 an additional deadtime 18.3 required.
  • Both versions may also correspond to a third embodiment FIG. 9 be combined with a PT 1 -Glied 18.2 and two deadtime elements 18.1, 18.3.
  • this contains the damping d.
  • the state variables D (t) and v '(t) may be represented by equivalent quantities, e.g. Color layer thicknesses to be replaced.
  • FIG. 10 shows the simulation model 18 with a PT 2 -Glied 18.2 and 2 dead time elements 18.1, 18.3 analogous to FIG. 9 . It should be noted that the two versions after FIG. 7 and FIG. 8 be combined with a PT 2 member instead of a PT 1 member.
  • the model-based approach can not only influence the classic parameters such as the opening of the colorimeter or the rotational speed of a color ductor. Rather, it is also possible to intervene directly on the basis of known conditions in the Anstellsequenz the machine.
  • the limits are within a range between 50% and 95% of the calculated and attainable nominal thicknesses or nominal densities.
  • FIG. 11 shows an example Anstellsequenz invention, as is possible with a model-based control.
  • Qualitatively represented over time is the ink layer amount on the ink fountain roller (reference numeral 81), on the applicator rollers (reference numeral 82), on the forme cylinder (reference numeral 83) and on the substrate (reference numeral 84).
  • the limit values for the pivoting of the film or lifting roller (reference numeral 61), for the pivoting of the applicator rollers on the plate cylinder (reference numeral 62) as well as for pressure-on (reference numeral 63) are also shown. They are in the above range between 50% and 95% of the expected target color thicknesses on the respective rolls.
  • the time domain 71 only color is on the ink fountain roller, in the time domain 72 also in the roller mill.
  • the time domain 73 the printing form is also colored. Only in the time domain 74 is ink applied to the substrate.
  • the pressure on the substrate is delayed until the calculated quantity of ink on the forme cylinder can be expected to reach the setpoint density or at least its tolerance band.
  • This time delay can be calculated separately for all color zones. With different ink acceptance in different color zones then the target density is reached in all zones at the same time. With a sufficient model quality is thus possible to set up the printing press without waste due to insufficient color density.

Claims (13)

  1. Procédé pour régler au moins un paramètre de réglage parmi un certain nombre de paramètres (13) d'un dispositif d'encrage (16) d'une machine d'impression offset, dans lequel les paramètres du dispositif d'encrage, lesquels peuvent également être des paramètres de réglage, comprennent une ouverture d'une lame d'encrier ou une vitesse de rotation d'un ducteur d'encrage, dans lequel, sur la base au moins du paramètre de réglage, on calcule au moyen d'un modèle de dispositif d'encrage (18) une valeur calculée (20) d'une densité de couleur sur un substrat (36) à imprimer par la machine d'impression et utilise, au lieu d'une valeur réelle (14), la valeur calculée (20) en tant que grandeur d'entrée pour le réglage, dans lequel la valeur calculée (20) est calculée au moins temporairement exclusivement sur la base d'un certain nombre de paramètres (13) du dispositif d'encrage (16), dans lequel
    un paramètre de réglage est la vitesse de rotation d'un ducteur d'encrage (31), et/ou
    l'ouverture d'au moins une lame d'encrier.
  2. Procédé selon la revendication 1, caractérisé en ce que l'on utilise, en guise de modèle de dispositif d'encrage (18), un modèle de dispositif d'encrage empirique (18) sur la base d'un organe de transfert de technique de régulation (18.2).
  3. Procédé selon la revendication 2, caractérisé en ce que le modèle de dispositif d'encrage (18) présente en outre un organe à temps de retard (18.1) reflétant la durée de parcours de l'encre d'un encrier, depuis le changement du paramètre de réglage jusqu'à l'atteinte du premier point de contact avec un rouleau pelliculeur (32) ou un rouleau preneur.
  4. Procédé selon l'une des revendications 2 ou 3, caractérisé en ce que le modèle de dispositif d'encrage (18) présente en outre un organe à temps de retard (18.3) reflétant la durée de parcours d'un exemplaire d'impression entre l'impression et la mesure.
  5. Procédé selon l'une des revendications 2 à 3, caractérisé en ce que l'organe de transfert de technique de régulation (18.2) est un organe PT1.
  6. Procédé selon l'une des revendications 2 à 4, caractérisé en ce que l'organe de transfert de technique de régulation (18.2) est un organe PT2.
  7. Procédé selon l'une des revendications précédentes, caractérisé en ce que, pendant une phase de mise en marche du dispositif d'encrage (16), la valeur calculée (20) est calculée exclusivement sur la base d'un certain nombre de paramètres (13) du dispositif d'encrage (16), et ce au moins jusqu'à ce qu'une valeur de mesure (14) de la densité de couleur sur le substrat (36) peut être mesurée.
  8. Procédé selon l'une des revendications précédentes, caractérisé en que, après une phase de mise en marche, on mesure périodiquement, de préférence après un calcul respectif d'une pluralité de valeurs calculées, dans une zone en aval du dispositif d'encrage, une valeur de mesure (14) de la densité de couleur sur le substrat (36) et que le modèle de dispositif d'encrage (18) est ajusté sur la base de la valeur de mesure (14).
  9. Procédé selon la revendication 8, caractérisé en ce que, pour la mesure de valeurs de mesure à différents emplacements transversalement à la direction de déplacement du substrat (36), on utilise un capteur (37) traversant la bande d'impression en direction transversale dans la zone en aval du dispositif d'encrage.
  10. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un rouleau pelliculeur ou preneur (32) du dispositif d'encrage (16) est basculé contre un ducteur d'encrage (31) si la valeur calculée (14) dépasse une valeur de seuil prescrite (61).
  11. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un rouleau encreur (33) est basculé contre un cylindre porte-plaque (34) si la valeur calculée (14) dépasse une valeur de seuil prescrite (62).
  12. Procédé selon l'une des revendications précédentes, caractérisé en ce qu'un cylindre porte-blanchet (35) est basculé contre le substrat (36) si la valeur calculée dépasse une valeur de seuil prescrite (63).
  13. Machine d'impression offset avec un dispositif d'encrage, lequel présente au moins un ducteur d'encrage (31) et une lame d'encrier associée, dans laquelle au moins une vitesse de rotation du ducteur d'encrage (31) et/ou une ouverture de la lame d'encrier est réglable en tant que paramètre de réglage, caractérisée en ce que l'on prévoit en outre, pour le dispositif d'encrage, une unité de commande (15, 18) avec un mécanisme de réglage (15) et un modèle de dispositif d'encrage (18), ainsi que de préférence un capteur (37) traversant, ou ne traversant pas la bande d'impression en direction transversale dans une zone en aval du dispositif d'encrage, lesquels sont réalisés pour mettre en oeuvre un procédé de réglage selon l'une des revendications 1 à 12 pour régler au moins une vitesse de rotation du ducteur d'encrage (31) et/ou une ouverture de la lame d'encrier en tant que paramètres de réglage.
EP14151603.9A 2013-01-30 2014-01-17 Procédé de régulation d'un paramètre d'un dispositif d'encrage Not-in-force EP2762316B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102013100916.6A DE102013100916A1 (de) 2013-01-30 2013-01-30 Verfahren zur Regelung eines Parameters eines Farbwerks

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EP2762316A2 EP2762316A2 (fr) 2014-08-06
EP2762316A3 EP2762316A3 (fr) 2016-06-01
EP2762316B1 true EP2762316B1 (fr) 2018-09-05

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US (1) US20140208967A1 (fr)
EP (1) EP2762316B1 (fr)
CN (1) CN103963454A (fr)
DE (1) DE102013100916A1 (fr)
ES (1) ES2687069T3 (fr)

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EP4311672A1 (fr) * 2022-07-27 2024-01-31 hubergroup Deutschland GmbH Procédé de calcul des paramètres pour le pré-encrage d'une unité d'impression d'une machine d'impression offset avec une couleur d'accompagnement

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ES2687069T3 (es) 2018-10-23
CN103963454A (zh) 2014-08-06
EP2762316A3 (fr) 2016-06-01
DE102013100916A1 (de) 2014-07-31
US20140208967A1 (en) 2014-07-31
EP2762316A2 (fr) 2014-08-06

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