EP1938987B1 - Method and device for controlling the ink transport in an inking unit - Google Patents

Method and device for controlling the ink transport in an inking unit Download PDF

Info

Publication number
EP1938987B1
EP1938987B1 EP20070023427 EP07023427A EP1938987B1 EP 1938987 B1 EP1938987 B1 EP 1938987B1 EP 20070023427 EP20070023427 EP 20070023427 EP 07023427 A EP07023427 A EP 07023427A EP 1938987 B1 EP1938987 B1 EP 1938987B1
Authority
EP
European Patent Office
Prior art keywords
temperature
rollers
ink
inking
roller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20070023427
Other languages
German (de)
French (fr)
Other versions
EP1938987A3 (en
EP1938987A2 (en
Inventor
Uwe Püschel
Jürgen Schölzig
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 Sheetfed GmbH
Original Assignee
Manroland Sheetfed GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE200610061341 priority Critical patent/DE102006061341A1/en
Application filed by Manroland Sheetfed GmbH filed Critical Manroland Sheetfed GmbH
Publication of EP1938987A2 publication Critical patent/EP1938987A2/en
Publication of EP1938987A3 publication Critical patent/EP1938987A3/en
Application granted granted Critical
Publication of EP1938987B1 publication Critical patent/EP1938987B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/0063Devices for measuring the thickness of liquid films on rollers or cylinders
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/002Heating or cooling of ink or ink rollers
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F31/00Inking arrangements or devices
    • B41F31/02Ducts, containers, supply or metering devices
    • B41F31/022Ink level control devices
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41FPRINTING MACHINES OR PRESSES
    • B41F33/00Indicating, counting, warning, control or safety devices
    • B41F33/0036Devices for scanning or checking the printed matter for quality control
    • B41F33/0045Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00Arrangements for the operation of printing presses
    • B41P2233/10Starting-up the machine
    • B41P2233/11Pre-inking
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41PINDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
    • B41P2233/00Arrangements for the operation of printing presses
    • B41P2233/30Measuring or controlling the consumption of ink

Description

  • The invention relates to a method according to claim 1 and an apparatus according to claim 12.
  • In offset printing machines, highly viscous printing inks are often processed. The rheological properties of these printing inks are referred to as thixotropic, that is, the viscosity of the printing inks is reduced, inter alia, by movement. In order to divide the ink into the evenly thin color layers of only a few micrometers in thickness required for high-quality printing, therefore, relatively expensive inking units with a plurality of inking rollers are usually used, between which the printing ink is transferred by a cleavage process. The ink is usually removed by means of an ink fountain roller influenced by an ink fountain of dosing and the next inking roller provided in a first color layer. This is usually a squeegee roller, which gradually decreases the ink layer from the ink fountain roller, or a film roller, which decreases the ink layer continuously from the ink fountain roller, and in an ink roller train formed by the inking rollers, arranged at the end of one or more inking rollers for coloring a printing plate are. In sheet-fed offset printing, four inking rollers are usually used and in web offset printing often only two inking rollers are used. Accordingly, the inking rollers are divided into Farbwerkswalzenstränge.
  • The main task of an inking unit is to paint reliefs, which inevitably arise after a zonal different color output of ink to the printing plate on the inking rollers to equalize as completely as possible on a new inking of the inking rollers forth before the next contact of the inking rollers is done to the printing plate.
  • Since the suitable for a high-quality printing ink transport in a multi-roll inking unit is dependent on the subject and a printing unit must be suitable for the processing of different subjects simultaneously, it is desirable in particular in inking of offset printing units to be able to influence the color distribution in the inking.
  • It has been found that the color splitting at the outlet of an inking unit nip depends on the temperature of the inking rollers involved. A cooled inking roller arranged in a roller train results in a thicker ink layer compared to the uncooled state.
  • Devices of this kind are for example from the DE 4335097 A1 , of the DE 9316932 U1 and the DE 4202544 A1 known. With the so-called tempering the viscosity of the transported ink is influenced. In this case, tempering devices have become known in almost all places of printing units and inking units.
    The tempering can be made possible by means of the inking rollers through-flowing heat-bearing media from the inside. Frequently, temperature sensors are used to detect the surface temperature of inking rollers or cylinders in order to regulate the temperature of the tempering medium accordingly. The location within an inking unit is described by the ink fountain roller on friction rollers to inking rollers. In particular, however, the function of tempering is described for cooling and stabilizing the color transport. In the DE 4335097 A1 is described as a further effect, the reduction of pollution in a printing unit and the associated inking unit. It is not known how the color transport in an inking unit can be influenced by the devices described.
  • From the DE 101 19 735 A1 There are known a printing method and a printing machine. In the printing press, a tempering device is provided for processing water-based printing inks. At the designated Heating of the inking unit by means of fan heaters is generated to evaporate water fractions of the ink from the ink fountain roller, starting from roller to roller in the inking unit down to the planographic printing decaying temperature gradient, the ink fountain roller is warmer than the other rollers.
  • Furthermore, from the DE 197 36 330 A1 a printing press with a plurality of tempering known, the latter individual rolls are associated with a short inking unit. The ink fountain roller of the short inking unit is designed as an anilox roller. A color quantity control is basically not possible with an anilox roller, as it always provides the same amount of ink via a cell grid.
  • Furthermore, from the JP H08-290550 A a temperature control for printing machines, in which inking units are designed so that all distributor rollers and the ink fountain roller can be tempered. The temperatures of the rollers should be performed in substantially the same temperature ranges, wherein for the ink fountain roller a smaller temperature range is specified than for the distributor rollers. Incidentally, these temperature ranges should be controlled in relation to the prevailing ambient temperature.
  • Finally, from the EP 1 262 321 A2 a method and a device for adjusting the temperature of a printing press, in which an inking unit two independently controllable piping systems for the temperature control of rollers of the inking unit are assigned. In a first pipeline system, the ink fountain roller and the first distributor roller at a temperature level of 35 to 38 degrees C and in a second pipeline system, the other distributor rollers are maintained at a temperature level of 14 to 30 degrees C.
  • The object of the invention is therefore to provide a working method and an associated inking, in which avoided the disadvantages of the prior art and the color transport in an inking unit can be controlled as required in subjects with low color guide and the poster and display printing needs, so that the achievement of a fast coloring constancy is possible.
  • The object is achieved according to the method with the features of claim 1 and device according to the features of claim 12.
  • The inventive method provides that in a tempering of an offset printing unit, the temperature of the ink fountain roller is set to a lower value than the temperature of the following heatable rollers in the ink roller train.
    Preferably, this behavior is used in Drucksujets with relatively low color guide.
  • Due to an increased temperature difference between ink fountain roller and inking unit, wherein the ink fountain roller has a lower temperature than the following inking rollers, a higher color density in inking the substrate with otherwise identical operating parameters such as speed, opening of Farbdosierelementen, lifter cycle, etc. achieved.
    This behavior brings great advantages especially in poster or display printing with high demands on the color transfer and the color density in appearance on the substrate. Here, a very fast coloring constant is still achieved in the printing process.
    The required temperature control can be done via the control of individual zones of the distributor roller. Here, a system is constructed via a manifold and control valves.
  • It is possible to integrate a color density control via the inking unit temperature control within certain limits.
  • It was found in corresponding experiments that by an inventive temperature control of the ink fountain roller to a constant 27 ° C and an adjustment of the temperature of the distributor rollers to 13 ° C above the temperature of the ink fountain roller an increase in the value of the color density of up to 0.30 density values, i. can be reached by about 30%.
  • In the following the invention will be explained in more detail with reference to drawings in one embodiment.
  • Show in it
  • FIG. 1
    an overview of an offset printing unit,
    FIG. 2
    a schematic representation of a device in a first embodiment of the invention and
    FIG. 3
    a schematic representation of a device in a second embodiment of the invention.
  • In FIG. 1 a printing unit for sheetfed offset printing is shown in detail. The printing unit contains a forme cylinder 1, a transfer cylinder 2 and an impression cylinder transport in sheet travel direction 3 serving impression cylinder 4. The transfer cylinder 2, a dampening unit 5 and an inking unit 6 are assigned in a known manner. The production of a printed image on a sheet is carried out in a nip between the transfer cylinder 2 and the impression cylinder 4. The dampening unit 5 has in addition to a dampening solution and dampening solution rollers and a fountain solution application roller.
  • The inking unit 6 has an ink fountain 7, a ductor or ink fountain roller 8 and a squeegee roller 9. The ink fountain 7 are further provided in association with the ink fountain roller 8 dosing systems not shown here. For this purpose, so-called paint shifters or colorimeters are usually used, which produce a metering gap that can be varied according to the color requirement in relation to the ink fountain roller 8. The dosing gap is zonal controllable and can be automatically adjusted in conjunction with a so-called color control system on the basis of color density measurements on the sheet.
  • The squeegee roller 9 is provided with a viscoelastic cover and is oscillated alternately against the ink fountain roller 8 and a first transfer roller 10 by means of a drive, not shown. The first transfer roller 10 is usually carried out in practice as a so-called distributor roller. Furthermore, the inking unit 6 has a plurality of further distributor rollers 11. The distributor rollers 11 are rotationally and adjustably driven in an axially oscillating manner. Finally, four inking roller 12 are provided by means of which printing ink is applied in the required amount to a stretched on the forme cylinder 1 pressure plate after it has been moistened by the dampening unit 5.
  • To generate a stationary color transport, the inking unit 6 must be filled. Only after all rollers, depending on their arrangement in the compactor and their surface condition including their surface temperature lead a certain color layer on their active surfaces, a stationary color transport can be set. The color transport is considered to be stationary if local nonuniformities of the ink layer thickness exceed the layer thickness differences resulting from the process start.
  • From the upper friction roller 11 two roller strands go out, the color flow to four inking rollers 12 each lead via two further distributor rollers 11 and transfer rollers. The division into roller strands results in a special color flow distribution. Inks of this type can often also be reversed in such a way that a standard configuration, a front-loading configuration or a symmetrical configuration with respect to the color flow distribution can be used during printing.
    The inking rollers 12 apply the ink to the printing plate, from which the printed image on the transfer cylinder 2 is applied to the substrate on the impression cylinder 4.
  • It is now intended to temper the distributor rollers 11 of the roller train individually and independently or together with the entire roller train.
  • The temperature of the inking unit 6 can in a known and here only schematically illustrated manner by flowing through the corresponding rollers with a bath liquid, z. B. according to heated or cooled heat transfer medium, such as water, take place.
  • For this purpose, a Temperiermittelkreislauf with Temperieranschlüssen TF for the ink fountain roller and T1 to T4 for the distributor rollers 11 is provided. The Temperiermittelkreislauf is provided with a cooling or heating device for the temperature control. The temperature control is fed by means of feed pumps via appropriately guided lines and the temperature control TF or T1 to T4 the respective rollers axially and removed again.
  • The actual temperature control for the ink roller located on the ink fountain roller can be done either directly on the detection of properties of the ink or indirectly on the detection of properties of the temperature.
    For this purpose, the temperature of the inking rollers or of the printing ink can be detected and subsequently controlled or regulated with the aid of sensors directed at the surfaces of the tempered inking rollers.
    On the other hand, the control or regulation of the temperature control with the aid of control valves under detection of the temperature of the temperature control and the control of this temperature via heating or cooling and a suitable backmixing during circulation or also the control of the flow rates.
  • It is also possible to influence the temperature control indirectly by means of an inline density detection and, if appropriate, control on the printed sheet on the basis of the measured values obtained thereby.
  • In FIG. 2 and FIG. 3 schematics are shown, according to which the system can work.
  • In FIG. 2 is a compilation of cutouts according to the already described inking unit 6 shown schematically. For four printing units D1 to D4 symbols for the identification of the ink fountain rollers 8 and 11 of distributor rollers are given. The ink fountain rollers 8 are joined together by means of a temperature control TF. The distributor rollers 11 are in turn to the Temperature control system connected to individual terminals T3 / T4 or to a summing terminal T1 ... T4.
    In this way, the temperature of the ink fountain rollers 8 can be adjusted completely independent of the temperature of the distributor rollers 11.
    As a controlled variable, the return temperature of the temperature control can be used.
  • In FIG. 3 is a section of the inking unit 6 already described for a single printing unit shown schematically. Again, symbols for identifying a ink fountain roller 8 and distributor rollers 11 are given. The ink fountain roller 8 is connected by means of a Temperiermittelanschlusses TF via a control valve RF to a temperature control T. A first upper friction roller 11 in turn is connected by means of a Temperiermittelanschlusses T1 via a further control valve R1 to the temperature control T. connected to individual terminals T3 / T4 or to a summing terminal T1 ... T4. Two further distributor rollers 11 are connected by means of Temperiermittelanschlüssen T3 / T4 via a further control valve R3 to the temperature control T.
  • Also in this arrangement, the temperature of the ink fountain roller 8 can be adjusted completely independent of the temperature of the distributor rollers 11.
    As a controlled variable, the return temperature of the temperature control can be used. The temperature of the ink fountain roller 8 can be done by means of the control valve RF to a flow rate control.
  • The inking unit 6 is operated as follows:
  • Via the lifting roller 9, a color flow is transported from the ink fountain roller 8 to the first distributor roller 11. The ink fountain roller 8 and the distributor roller 11 are tempered. They are flowed through independently of each other by means of temperature control, with appropriate devices to feed this and circulate. The Temperiermedienströme or Temperiermedientemperaturen in the ink fountain roller 8 and the or the distributor rollers 11 are independently controllable in terms of both the amount and the temperature of the Tempering. Therefore, a different temperature level is adjustable at the ink fountain roller 8 than at the or the distributor rollers. 1
  • The ink flow in the inking unit 6 depending on the temperature levels at the ink fountain roller 8 and the distributor rollers 11 then as follows:
  • When the ink fountain roller 8 is tempered to a lower temperature level relative to the temperature level of the distributor roller or distributor rollers 11, the ink flow from the ink fountain roller 8 via the squeegee roller 9 to the distributor roller 11 is intensified. Thereby, by appropriate control of the temperature control in an undersupplied compactor, e.g. for subjects that require only small amounts of ink in certain colors, relatively more ink is supplied at the same setting of the color dosage. Thus, a sufficient amount of ink is always provided on the inking rollers 12 to saturate the printing areas of the printing plate with ink.
  • To improve a control possibility of a sensor for detecting color layer thicknesses can be provided. Here, the ink layer thickness becomes e.g. detected on the first distributor roller 11. Depending on the ink requirement on the printing form, the ink layer thickness there can then be changed relative to one another by the control mechanisms described by means of the temperature control of the ink fountain roller 8 and the distributor roller or the distributor rollers 11. Process-dependent changes can then be easily readjusted.
  • By reversing and increasing the temperature difference between the ink fountain roller 8 and the rollers of the inking unit 6 according to the invention, a color flow improvement and thus an increase in the ink density during ink application to the printing material are achieved with otherwise identical operating parameters. Thus, a strong quality improvement is achieved especially when printing large-scale, color-intensive images with high demands on the color transfer or the color density in the appearance on the substrate. This continues to be a very fast coloring constant in the printing process.
  • The required temperature control can take place via the regulation of individual zones of the temperature-controlled inking rollers 11.
  • Finally, there is even the possibility of integrating a novel method for color density control to a limited extent via the inking unit temperature control according to the invention.
    For this purpose, the printed sheet is measured inline during the printing process and within the printing machine or offline outside the printing process on devices outside the printing press with regard to its color density printed per color. The measurements are used to determine if too much ink, enough ink, or too little ink has been applied to the sheet.
  • In the event that too little ink was applied, the control device of the tempering system can be influenced so that the temperature level is lowered at the ink fountain roller 8 by a defined amount. As a result, more ink is conveyed into the inking unit 6 and made a saturation of the ink supply to the sheet.
    In the event that too much ink was applied, the control device of the tempering system can be influenced so that the temperature level is raised at the ink fountain roller 8 by a defined amount. As a result, less ink is promoted in the inking unit 6 and made a reduction in the ink supply to the sheet to the necessary degree.
  • The required temperature differences between the ink fountain roller 8 and the temperature-controlled ink fountain rollers 11 can be stored as curves in the precursor, inking unit or machine control.
    The parameters are the coverage of the image to be printed and the thus determined ink consumption, the type of ink, the general temperature level in the inking unit 6, the density level in the respective print image, the temperature level of the ink in the ink fountain 7, a limit temperature for the operation of ink fountain 7 and Dosing systems, the speed of the printing press and possibly other printing parameters in question.
  • The characteristics can be retrieved in the presetting or production control of the printing press on the control station for use in the respective inking unit 6. Likewise, the characteristics can be stored in the temperature control and retrieved by means of the machine control in connection with the respective color setting on each inking unit 6.
  • To adapt the method and the device to the mechanical conditions, a work cycle of the following type can be selected:
  1. 1. Preselect a tempering characteristic according to the present pre-stage data
  2. 2. Control the temperature during a print job
  3. 3. Observing the dyeing behavior on the printing sheet, if necessary by density measurement or measurement of ink layer thicknesses on inking rollers
  4. 4. Adjust or optimize the temperature settings in small steps
  5. 5. Temperature of the ink fountain roller should be kept as constant as possible
  6. 6. Save the new characteristic obtained by the changed settings
  7. 7. Save the characteristic curve in conjunction with the job parameters of the processed print job
  8. 8. Calling up the stored characteristic when the job is repeated or when executing a similar or parameterized job
  • In this context, it is important and efficient for the order processing that the starting temperature of the ink in the ink fountain is detected at the start of printing. This can be done via a sensor optionally contactless by means of an infrared sensor. For the best possible adjustment, the printing ink can be preheated prior to printing. It should be noted that at the Farbdosiersystemen that cooperate in the ink fountain 7 with the ink fountain roller 8 hydrodynamic Attack effects of the ink. Therefore, the ink must not be too tough, so that build up too high pressures and thus mechanical displacement, which change the color dosage or lead to leakage of the ink from the ink fountain. This is an important basic parameter for the starting temperature and the control limits of the temperature of the ink fountain roller 8.
  • After the start of the print job is trying to keep the temperature in the ink fountain 7 by means of temperature control of the ink fountain roller 8 as constant as possible within the scope of the method according to the invention. As a result, a uniform color is achieved over the surface of the print, at the same time the ink supply is kept so high that a sufficient saturation of the printed image on the sheet is possible. A change in the tempering characteristic is therefore to be made in small steps in order to avoid disturbances of the coloring in its uniformity over the surface of the sheet.
  • LIST OF REFERENCE NUMBERS
  • 1
    plate cylinder
    2
    transfer cylinder
    3
    transport direction
    4
    Impression cylinder
    5
    dampening
    6
    inking
    7
    paintbox
    8th
    Ink fountain roller
    9
    vibrator roller
    10
    distributor roller
    11
    distributor rollers
    12
    Inking rollers
    TF
    Temperature control ink fountain roller
    T1
    Tempering friction roller
    T2
    Tempering friction roller
    T3
    Tempering friction roller
    T4
    Tempering friction roller
    T
    Temperature System
    RF
    control valve
    R1
    control valve
    R2
    control valve
    R3
    control valve

    Claims (16)

    1. A method for controlling the ink transport in inking couples of an offset printing press, with an ink duct roller (8), a ductor (9) or film roller, further inking couple rollers (11), wherein vibrator rollers are also provided here, and ink form rollers (12), wherein at least the ink duct roller (8) and multiple or all of the inking couple rollers (11) are coupled to a temperature control system (T),
      wherein in at least one inking couple (6) the temperature of the ink duct roller (8) by means of the temperature control system (T) is set to a lower value than the temperature of at least the temperature-controllable inking couple roller or rollers (11) which in the roller train of the inking couple (6) are located next to the ink duct roller (8),
      characterized in that the temperatures of the ink duct roller (8) and of the temperature-controllable ink couple roller or rollers (11) located next to it are regulated to temperature values that can be predetermined in each case independently of one another,
      wherein the setting of temperature differences between the respective ink duct rollers (8) and the associated temperature-controllable inking couple rollers (11) in the various inking couples (6) of a multi-colour printing press takes place independently of one another.
    2. The method according to claim 1, characterized in that the temperature control of the temperature-controllable ink couple rollers (11) is carried out so that a uniform temperature level materialises on all inking couple rollers (11).
    3. The method according to claim 1 to 2, characterized in
      that the temperature difference for temperature-controlling ink duct rollers (8) and associated temperature-controllable inking couple rollers (11) is preselectable as a function of employed printing forme.
    4. The method according to claim 1 to 3, characterized in
      that the temperature difference between the ink duct roller (8) and associated temperature-controllable inking couple rollers (11) is set as a function of the ink layer thickness of one or multiple temperature-controllable inking couple rollers (11).
    5. The method according to claim 4, characterized in
      that the ink layer thickness on one or multiple inking couple rollers (11) located in the roller train next to the ink duct roller (8) is detected by measurement.
    6. The method according to claim 1 to 5, characterized in
      that an ink control is carried out through measurement of one or multiple ink density values of printing inks printed on a print sheet and changing of the temperature difference between ink duct roller (8) and one or multiple temperature-controllable inking couple rollers (11) in the inking couple (6), in the ink of which a deviation from the set value was detected.
    7. The method according to claim 6, characterized in
      that upon detection by measurement of an ink density value of a printing ink on a print sheet that is too low the temperature difference in the corresponding inking couple (6) between the ink duct roller (8) and one, multiple or all temperature-controllable inking couple rollers (11) is increased or in that the temperature level of the ink duct roller (8) is reduced with temperature level of the inking couple rollers (11) remaining the same.
    8. The method according to claim 6, characterized in
      that upon detection by measurement of too high an ink density value of a printing ink on a print sheet in the corresponding inking couple (6) the temperature difference between the ink duct roller (8) and one, multiple or all temperature-controllable ink couple rollers (11) is reduced or in that the temperature level of the ink duct roller (8) is increased with the temperature level of the inking couple rollers (11) remaining the same.
    9. The method according to claim 1 to 8, characterized in
      that temperature differences between the temperature of the ink duct roller (8) and the temperature-controllable inking couple rollers (11) can be stored as characteristic curves at least as a function of the area coverage of the printing ink to be transferred and/or of the ink type and/or the density level of the image to be printed and/or application parameters.
    10. The method according to claim 9, characterized in
      that the characteristic curves of the temperature differences during the presetting of the printing press or during the printing process control of the printing press are automatically or manually accessible.
    11. The method according to claim 9 or 10, characterized in
      that the characteristic curves of the temperature differences during the printing process control of the printing press are adaptable and in that the changed characteristic curve values with respect to printing parameters or application data can be stored and accessed for new printing orders.
    12. An inking couple (6) with an ink duct roller (8), a ductor (9) or film roller, vibrator rollers (10, 11), transfer rollers (6) and ink form rollers (12), wherein at least the ink duct roller (8) and a part or all of the inking couple rollers (11) and/or transfer rollers are coupled to a temperature control system (T) for carrying out the method according to claim 1,
      characterized in
      that the ink duct roller (8) is assigned a temperature control device (TF) which is controllable independently of the temperature control devices (T1 to T4) of the further temperature-controllable inking couple rollers (11), and
      in that in a multi-colour printing press each ink duct roller (8) of the respective inking couples (6) is assigned a temperature control device (TF) that is controllable independently of the temperature control devices (TF) of the other ink duct rollers (8) or
      in that the temperature control device (TF) of an ink duct roller (8) of an inking couple (6) is connected to a central temperature control system (T) by means of an independently controllable regulating Valve (RF).
    13. The inking couple according to claim 12, characterized in
      that the temperature control devices (TF) of the ink duct rollers (8) of the inking couples (6) of a multi-colour printing press are connected to the temperature control system (T) by means of a common temperature control medium circuit (T) independently of the temperature control devices (T1 to T4) of the further temperature-controllable inking couple rollers (11).
    14. The inking couple according to any one of the claims 12 to 13, characterized in
      that one or all of the temperature-controllable inking couple rollers (11) are designed as vibrator rollers.
    15. The inking couple according to any one of the claims 12 to 14, characterized in
      that the temperature control medium circuit (T) in terms of regulation is linked to a device for carrying out ink layer thickness measurements on inking couple rollers (11, 12).
    16. The inking couple according to any one of the claims 12 to 15, characterized in
      that the temperature control medium circuit (T) in terms of regulation is linked to a device for detecting ink density values on a print sheet.
    EP20070023427 2006-12-22 2007-12-04 Method and device for controlling the ink transport in an inking unit Active EP1938987B1 (en)

    Priority Applications (1)

    Application Number Priority Date Filing Date Title
    DE200610061341 DE102006061341A1 (en) 2006-12-22 2006-12-22 Method for controlling the transport of ink in an inking system of a printing machine comprises adjusting the temperature of an ink duct roller using a tempering system in the inking system and controlling the temperature

    Publications (3)

    Publication Number Publication Date
    EP1938987A2 EP1938987A2 (en) 2008-07-02
    EP1938987A3 EP1938987A3 (en) 2011-10-26
    EP1938987B1 true EP1938987B1 (en) 2014-09-10

    Family

    ID=39365664

    Family Applications (1)

    Application Number Title Priority Date Filing Date
    EP20070023427 Active EP1938987B1 (en) 2006-12-22 2007-12-04 Method and device for controlling the ink transport in an inking unit

    Country Status (3)

    Country Link
    EP (1) EP1938987B1 (en)
    JP (1) JP2008155644A (en)
    DE (1) DE102006061341A1 (en)

    Families Citing this family (23)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    CN102039725B (en) 2009-10-21 2014-12-17 海德堡印刷机械股份公司 Method for compensating for inking differences in a printing press with an anilox short inking unit
    US9021948B2 (en) 2011-04-27 2015-05-05 Xerox Corporation Environmental control subsystem for a variable data lithographic apparatus
    US20120103214A1 (en) * 2010-10-29 2012-05-03 Palo Alto Research Center Incorporated Heated Inking Roller for a Variable Data Lithography System
    US20120274914A1 (en) 2011-04-27 2012-11-01 Palo Alto Research Center Incorporated Variable Data Lithography System for Applying Multi-Component Images and Systems Therefor
    US8991310B2 (en) 2011-04-27 2015-03-31 Palo Alto Research Center Incorporated System for direct application of dampening fluid for a variable data lithographic apparatus
    US8347787B1 (en) 2011-08-05 2013-01-08 Palo Alto Research Center Incorporated Variable data lithography apparatus employing a thermal printhead subsystem
    US9021949B2 (en) 2012-02-06 2015-05-05 Palo Alto Research Center Incorporated Dampening fluid recovery in a variable data lithography system
    US9032874B2 (en) 2012-03-21 2015-05-19 Xerox Corporation Dampening fluid deposition by condensation in a digital lithographic system
    US8950322B2 (en) 2012-03-21 2015-02-10 Xerox Corporation Evaporative systems and methods for dampening fluid control in a digital lithographic system
    US9529307B2 (en) 2012-07-12 2016-12-27 Palo Alto Research Center Incorporated Imaging system for patterning of an image definition material by electro-wetting and methods therefor
    US8586277B1 (en) 2012-07-12 2013-11-19 Palo Alto Research Center Incorporated Patterning of an image definition material by electro-wetting
    US8833254B2 (en) 2012-07-12 2014-09-16 Xerox Corporation Imaging system with electrophotographic patterning of an image definition material and methods therefor
    US9316993B2 (en) 2012-07-12 2016-04-19 Xerox Corporation Electrophotographic patterning of an image definition material
    US9639050B2 (en) 2012-07-12 2017-05-02 Xerox Corporation Electrophotographic patterning of an image definition material
    US9316994B2 (en) 2012-07-12 2016-04-19 Xerox Corporation Imaging system with electrophotographic patterning of an image definition material and methods therefor
    US8919252B2 (en) 2012-08-31 2014-12-30 Xerox Corporation Methods and systems for ink-based digital printing with multi-component, multi-functional fountain solution
    US9956801B2 (en) 2012-08-31 2018-05-01 Xerox Corporation Printing plates doped with release oil
    US9592698B2 (en) 2012-08-31 2017-03-14 Xerox Corporation Imaging member for offset printing applications
    US9327487B2 (en) 2012-08-31 2016-05-03 Xerox Corporation Variable lithographic printing process
    US9616654B2 (en) 2012-08-31 2017-04-11 Xerox Corporation Imaging member for offset printing applications
    US9561677B2 (en) 2012-08-31 2017-02-07 Xerox Corporation Imaging member for offset printing applications
    US9567486B2 (en) 2012-08-31 2017-02-14 Xerox Corporation Imaging member for offset printing applications
    EP2886345A1 (en) * 2013-12-23 2015-06-24 Comexi Group Industries, S.A.U Automatic printing parameters adjustment and control method

    Family Cites Families (15)

    * Cited by examiner, † Cited by third party
    Publication number Priority date Publication date Assignee Title
    US3141408A (en) * 1961-11-21 1964-07-21 Interchem Corp High speed printing with super-fast inks
    DE1179225B (en) * 1962-02-09 1964-10-08 Maschf Augsburg Nuernberg Ag Heating device for the inking unit of a printing press
    DE2360611A1 (en) * 1973-12-05 1975-06-19 Grapho Metronic Gmbh & Co Inking unit for printing presses
    DE3904854C1 (en) * 1989-02-17 1990-04-26 Jagusch & Co, 8649 Wallenfels, De
    DE4202544A1 (en) * 1992-01-30 1993-08-05 Baldwin Gegenheimer Gmbh Print plate temperature system for a printing machine
    DE4335097C2 (en) * 1993-10-14 1999-02-25 Baldwin Grafotec Gmbh Device for tempering printing press cylinders and rollers
    DE9316932U1 (en) * 1993-11-05 1993-12-16 Roland Man Druckmasch Printing unit for waterless offset printing
    JPH08281915A (en) * 1995-04-10 1996-10-29 Toppan Printing Co Ltd Apparatus for controlling temperature of ink roller and ink fountain roller
    JP3536416B2 (en) * 1995-04-10 2004-06-07 凸版印刷株式会社 Ink transfer amount stabilizer
    JP3212480B2 (en) * 1995-04-25 2001-09-25 三菱重工業株式会社 Printing machine temperature controller
    JPH0929934A (en) * 1995-07-14 1997-02-04 Toppan Printing Co Ltd Offset press
    DE19750960C2 (en) * 1996-11-26 2002-08-14 Roland Man Druckmasch Film inking unit for a rotary printing machine
    DE19736339B4 (en) * 1997-08-21 2004-03-18 Man Roland Druckmaschinen Ag Temperature control of a printing unit and temperature control device
    DE10119735A1 (en) * 2000-05-15 2001-11-22 Heidelberger Druckmasch Ag Printing method and machine for operating with a flatbed printing form uses a controlled scaling device with two water-filled circuits to adjust the water temperature of a water-based printing ink in an inker unit.
    JP4412447B2 (en) * 2001-05-29 2010-02-10 東洋製罐株式会社 Temperature control method and apparatus for printing press

    Also Published As

    Publication number Publication date
    EP1938987A3 (en) 2011-10-26
    DE102006061341A1 (en) 2008-06-26
    JP2008155644A (en) 2008-07-10
    EP1938987A2 (en) 2008-07-02

    Similar Documents

    Publication Publication Date Title
    ES2382471T3 (en) Procedure for the use of a printing mechanism of a press
    EP0564936B1 (en) Anilox-offset printing unit with short inking system
    US5595115A (en) Printing mechanism including means for cooling and means for mounting sleeve shaped forms on transfer and form cylinders
    US5272971A (en) Ink temperature control system for waterless lithographic printing
    EP1870238B1 (en) System for tempering components of a printing machine
    US7806051B2 (en) Drive of the inking unit in an intaglio printing machine
    DE102004044215B4 (en) Method for adjusting a transfer of printing ink
    EP1457331B1 (en) Short inking system for a rotary printing machine
    US5447102A (en) Process for operating a printing press
    EP0662046B1 (en) Process and device for adjusting the contact pressure of a synthetic-blanket roller in rotary printing presses
    DE3941571C2 (en) Method and device for printing special colors
    EP0509226A1 (en) Printing device
    US6505557B2 (en) Process temperature control system for rotary process machinery
    EP0393365B1 (en) Method and device for supplying damping liquid in an offset printing machine
    EP1313617B1 (en) Method and device for coating printed products
    US6655280B2 (en) Inking unit in a printing machine having a chambered doctor blade and multiple inking zones
    DE10013876B4 (en) Method for controlling the coloring when printing with a printing machine
    AT396907B (en) Film damping unit for offset printing machines
    DE10145957A1 (en) Device and method for adjusting the print image in a flexographic printing machine
    JP3037240B2 (en) Film inking mechanism for rotary printing press
    EP1262321A2 (en) Method and apparatus for adjusting temperature of printing press
    GB2435238A (en) Inking device for a printing machine, in particular a flexographic printing machine
    US5081926A (en) Method and apparatus for the rapid establishment of an ink zone profile in an offset printing press
    DE102009002251A1 (en) Printing machine with integrated operating system
    DE10348307A1 (en) Ink roller for an inking unit of an offset printing machine

    Legal Events

    Date Code Title Description
    AK Designated contracting states

    Kind code of ref document: A2

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

    AX Request for extension of the european patent to:

    Extension state: AL BA HR MK RS

    RAP1 Rights of an application transferred

    Owner name: MANROLAND AG

    RIC1 Information provided on ipc code assigned before grant

    Ipc: B41F 31/02 20060101ALI20110920BHEP

    Ipc: B41F 33/00 20060101ALI20110920BHEP

    Ipc: B41F 31/00 20060101AFI20110920BHEP

    AX Request for extension of the european patent to:

    Extension state: AL BA HR MK RS

    AK Designated contracting states

    Kind code of ref document: A3

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

    19U Interruption of proceedings before grant

    Effective date: 20120201

    19W Proceedings resumed before grant after interruption of proceedings

    Effective date: 20131001

    RAP1 Rights of an application transferred

    Owner name: MANROLAND SHEETFED GMBH

    17P Request for examination filed

    Effective date: 20140102

    RBV Designated contracting states (corrected)

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

    AKX Designation fees paid

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

    INTG Intention to grant announced

    Effective date: 20140521

    AK Designated contracting states

    Kind code of ref document: B1

    Designated state(s): AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC MT NL PL PT RO SE SI SK TR

    REG Reference to a national code

    Ref country code: GB

    Ref legal event code: FG4D

    Free format text: NOT ENGLISH

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: EP

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: FG4D

    Free format text: LANGUAGE OF EP DOCUMENT: GERMAN

    REG Reference to a national code

    Ref country code: AT

    Ref legal event code: REF

    Ref document number: 686449

    Country of ref document: AT

    Kind code of ref document: T

    Effective date: 20141015

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R096

    Ref document number: 502007013431

    Country of ref document: DE

    Effective date: 20141023

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: ES

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: LT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: FI

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: SE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: GR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20141211

    REG Reference to a national code

    Ref country code: NL

    Ref legal event code: VDEP

    Effective date: 20140910

    REG Reference to a national code

    Ref country code: LT

    Ref legal event code: MG4D

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: LV

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: CY

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: NL

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: PT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20150112

    Ref country code: SK

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: RO

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: IS

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20150110

    Ref country code: CZ

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: EE

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: PL

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    REG Reference to a national code

    Ref country code: DE

    Ref legal event code: R097

    Ref document number: 502007013431

    Country of ref document: DE

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: BE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20141231

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: DK

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: LU

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20141204

    26N No opposition filed

    Effective date: 20150611

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    REG Reference to a national code

    Ref country code: IE

    Ref legal event code: MM4A

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: IE

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20141204

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: SI

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: PLFP

    Year of fee payment: 9

    PGFP Annual fee paid to national office [announced from national office to epo]

    Ref country code: GB

    Payment date: 20151221

    Year of fee payment: 9

    Ref country code: CH

    Payment date: 20151221

    Year of fee payment: 9

    PGFP Annual fee paid to national office [announced from national office to epo]

    Ref country code: FR

    Payment date: 20151221

    Year of fee payment: 9

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: BG

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: MC

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: HU

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT; INVALID AB INITIO

    Effective date: 20071204

    Ref country code: TR

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    Ref country code: MT

    Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

    Effective date: 20140910

    PGFP Annual fee paid to national office [announced from national office to epo]

    Ref country code: AT

    Payment date: 20161222

    Year of fee payment: 10

    REG Reference to a national code

    Ref country code: CH

    Ref legal event code: PL

    GBPC Gb: european patent ceased through non-payment of renewal fee

    Effective date: 20161204

    REG Reference to a national code

    Ref country code: FR

    Ref legal event code: ST

    Effective date: 20170831

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: FR

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20170102

    Ref country code: LI

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20161231

    Ref country code: CH

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20161231

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: GB

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20161204

    REG Reference to a national code

    Ref country code: AT

    Ref legal event code: MM01

    Ref document number: 686449

    Country of ref document: AT

    Kind code of ref document: T

    Effective date: 20171204

    PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

    Ref country code: AT

    Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

    Effective date: 20171204

    PGFP Annual fee paid to national office [announced from national office to epo]

    Ref country code: DE

    Payment date: 20191210

    Year of fee payment: 13