EP0836942B1 - Messfeldblock und Verfahren zur Erfassung von Qualitätsdaten im Mehrfarben-Auflagendruck - Google Patents
Messfeldblock und Verfahren zur Erfassung von Qualitätsdaten im Mehrfarben-Auflagendruck Download PDFInfo
- Publication number
- EP0836942B1 EP0836942B1 EP97810655A EP97810655A EP0836942B1 EP 0836942 B1 EP0836942 B1 EP 0836942B1 EP 97810655 A EP97810655 A EP 97810655A EP 97810655 A EP97810655 A EP 97810655A EP 0836942 B1 EP0836942 B1 EP 0836942B1
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- EP
- European Patent Office
- Prior art keywords
- measurement
- colour
- fields
- color
- field block
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- 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.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0081—Devices for scanning register marks
-
- 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
- B41P2233/50—Marks on printed material
- B41P2233/51—Marks on printed material for colour quality control
Definitions
- the invention relates to a measuring field block and a method for detecting Quality data in multi-color edition printing according to the generic terms of the independent Expectations.
- the quality data acquisition for example of ink, ink layer thickness, register, shift, duplication values, Area coverings and the like are used to monitor and control the coloring in multi-color printing.
- EP 0 196 431 B1 is a method for achieving a uniform printing result on a multi-color offset printing press that works in an autotype.
- the Ink guide actuators of the printing press set automatically. Because in every color setting zone If several measuring fields are printed on the machine, this method is suitable for commercial offset printing, but not for newspaper offset printing where the measuring fields in contrast to commercial offset printing, also printed within the type area and after cannot be cut away from the print. Newspaper publishers accept this Measuring fields are therefore reluctant.
- Registration errors and measuring register marks suitable for measurement are known from DE 44 37 603 A1 and DE 40 14 706 A1. Such registration marks would have to be printed on the printed product to be checked in addition to the color marks and be measured with an appropriate measuring device. At least it has to two measuring devices are mastered and used.
- color management With the progressive introduction of color management in the printing industry Another problem.
- the idea of color management is known to be that Color templates in digital prepress independent of output devices and materials be determined.
- the colors of a picture template are in one by the commission Internationale de 1 'Eclairage (CIE) standardized color-fresh coordinate system like CIEXYZ, CIELAB or CIELUV. If the output is defined in this way multicolored images on paper over a calibrated in terms of color management System, it is ensured that the color appearance of the printed product to the Original is comparable, regardless of the output process used.
- CIE Commission Internationale de 1 'Eclairage
- Computer color printers, digital color copiers, among others, are calibratable output systems and digital proofing devices in use. It is worth pursuing the concept of Color management also on conventional printing processes, such as newspaper offset printing, expand. The existing of printing form production and printing process Effect chain treated like any other calibratable output device.
- test strip 10 has a plurality of registration marks that are each separated from a measuring field.
- a departure from The desired register is recognized by the fact that the lines are not exactly one above the other come to lie.
- the invention has set itself the task of quality data acquisition in multi-color production printing, preferably in offset printing and preferably not only for commercial offset but also for newspaper offset printing.
- the Space required for the measuring elements or for the determination of quality data Measuring fields are reduced compared to known solutions, and it should be the measuring technology Can be kept to a minimum.
- the invention is based on a measuring field block, which is formed by several measuring fields is used to obtain color values, color densities or surface coverings or a Combination of these are suitable. Suitable here means that the measuring fields are large are enough to use the measurement techniques available to determine these values to be able to measure, i.e. the measuring fields must have color measuring areas of sufficient size exhibit.
- the measuring field block has at least one for the simultaneous determination Value for a register deviation, i.e. of a register value, lines in primary colors, the can be used for a print.
- a register deviation i.e. of a register value, lines in primary colors
- the measuring field block There are thus measuring elements in the measuring field block, namely the named measuring fields and the lines, which are combined on the same measuring field block Measurement and determination of a register deviation and densitometric and / or colorimetric values allowed.
- a suitable measuring device is the measurement and based determination of those determining the print image Values possible with a single measurement.
- the lines preferably run between two of the measuring fields of the measuring field block through it. Very particularly preferably, there remains immediately on both sides along such a line, exact register provided an unprinted area. However, it can also be beneficial be the neighboring measuring fields, between which a line for determining the register to connect directly to such a line. In these two versions neighboring measuring fields of the measuring field block are thus separated from one another by a line separated.
- the lines may also be beneficial if one, some, or all of the lines are used to sum the Pass through one or more measuring fields of the measuring field block, in particular if the measuring field block has too few measuring fields to be used for the Determination of all register values all lines between the measuring fields or immediately to the side of the outer measuring fields of the block.
- At least one line for each of the primary colors of the respective print at least one direction in which a register deviation is to be determined is provided.
- For each of the primary colors there is preferably at least one line for determining the Register deviations in a first direction and at least one additional line each Determination of a register deviation in another direction is provided.
- are preferred per basic color at least one line in the circumferential direction and one in the longitudinal direction Printing cylinder available.
- the distance between the two lines pointing in the same direction Reference color is measured and is used for tuning or calibration of the same Measuring distances of the lines pointing in the same direction for the other primary colors.
- the measurement fields can each have at least one a color strip to determine the register and / or push and / or duplication have at least one color strip per measuring field in the same print is printed together with the color measuring surface of its measuring field, in relation to the Dimensions of the color measuring surface of his measuring field is narrow and in a predetermined, also in relation to the dimensions of the color measuring surface, close to the side Color measurement area runs.
- each of the measurement fields according to the invention can thus be used in addition to a color value, the color density and / or the area coverage in the color measurement area Measure the zone or area between the color measurement area and its lateral one Color strips a shift and / or duplication value determined for the printing unit in question become.
- the shift and / or duplication values can be determined.
- the measuring fields each have at least two of these lateral ones Color strips for determining sliding and duplication in the circumferential and lateral directions on.
- the zones between the color measurement areas run very particularly preferably and their lateral color stripes in the circumferential and lateral directions; two like that on one Zones formed in individual measurement fields therefore run at right angles to one another.
- the measuring field block has the aforementioned lines and measuring fields with color measuring areas and Color strips slightly spaced laterally therefrom are used to determine the Register values the lines and to determine the shift and / or duplication values the Color strips used. If the measuring fields have the specified color strips, what also corresponds to a preferred embodiment, it is still possible to Register values and / or shift values and / or duplication values by means of the colored strips determine.
- the measuring fields are preferably at least single-color full-tone fields in the respective primary colors, generally cyan, magenta and yellow for four-color printing, or corresponding single-color grids, in which the basic colors in each case are printed with their nominal area coverage. If both solid densities and single-color full-tone fields and Individual color grids printed in the primary colors.
- a solid tone field in black can also be used in each of the above combinations be provided.
- Combination measuring fields in addition to any of the aforementioned Combination measuring fields can be provided, in each of which at least two basic colors with their nominal area coverage are printed on top of each other, so that meaningful values regarding the ink acceptance behavior are determined can.
- an additional combination measuring field can also be printed in which all basic colors with their nominal area coverage are printed on top of each other are.
- measuring field block can be arranged.
- the register is exact, they are in shape a single compact measuring field block arranged and printed, so that the neighboring measuring fields with their color measuring areas or their lateral color strips blunt or collide on the lines or color measuring surfaces or the color strips keep a small distance from each other or from the lines.
- the register is exact, they are in shape a single compact measuring field block arranged and printed, so that the neighboring measuring fields with their color measuring areas or their lateral color strips blunt or collide on the lines or color measuring surfaces or the color strips keep a small distance from each other or from the lines.
- several measuring fields to such Arranged measuring field blocks and possibly several such measuring field blocks, each with different measuring fields are provided; Individual fields can also be in the Picture be printed.
- a suitable measuring device When using a single compact measuring field block, the use of a suitable measuring device, provided all the quality by means of a single touch of the printed product influencing values, namely the register values, sliding and Duplication values as well as color density, color acceptance and color balance values, color values, Area coverings and the like or a desired sub-combination determined become.
- a preferred method for recording quality data in multi-color production printing will include at least single color measuring fields in the primary colors Color measuring fields, preferably in cyan, magenta and yellow, and lines in the basic colors printed on a printed product, the individual color measuring fields at least one for Obtaining suitable color values or color density values or area coverage Have color measuring area.
- the measuring fields and lines are optically scanned and the remitted Light is evaluated, using register values by measuring the metric layers of the lines to each other can be obtained.
- Image areas of the printed product can advantageously serve as measuring fields.
- the measurement fields are preferably recognized by image analysis.
- measuring fields are in the form of a compact measuring field block printed side by side in such a way that their side-facing color stripes face each other butt with an exact register or a specified narrow distance from each other.
- the image processing process preferably includes a color separation and the generation of a Binary image and a feature-specific mathematical algorithm for determination the shift and duplication values, register values and color density values or area coverage.
- a diagnosis can be made on the basis of the quality data obtained become.
- the measures preferably include compensation of the pressure characteristics, which is both material and printing unit and machine specific.
- a correction of the press setting can be made from the diagnosis and the quality data obtained calculated and the printing press with these correction values can be controlled.
- Diagnosis is particularly preferred in the form of a computer program following the given decision tree.
- the diagnosis and the optional calculation of a correction of the press setting is preferably created with fuzzy logic.
- a particularly preferred measuring device has a sensor, preferably a photoelectric Sensor, with spectral or at least 3-area and two-dimensional spatial Resolution on.
- a CCD color camera is preferably used, which is placed on a microscope is mounted.
- measuring fields are arranged individually and in suitable measuring field blocks Subcombinations can also be printed on the image and distributed to those interested Still measure quality data using a single meter.
- the measuring device is arranged such that it can be moved over the continuous printed product.
- the traversing control of the measuring device becomes the locations of the to be probed measuring fields or measuring field blocks.
- the measuring field shown in FIG. 1 comprises a color measuring area F with lateral color strips S.
- Fig. 1 does not represent the subject of claim 1, but serves as an introductory part Explanation.
- the color measuring surface F has the shape of a square. One of the narrow, rectangular ones runs parallel to the edges of each of the four square sides Color stripes S.
- a color-free zone Z i.e. at least one In the printing of the measuring field, zone Z remaining free of color is formed, its width and thus Area with ideal pressure is precisely specified.
- the minimum size of the color measuring area F is determined by the screen size of the printing process, i.e. the grid point size taking into account the available camera resolution or the spatial resolution of the sensor and a sufficiently meaningful statistic.
- the color measuring area F which is square in the exemplary embodiment, can be straight within the plugged frame basically only rectangular and basically even arbitrary, but predetermined in a defined manner.
- the color stripes S must also not necessarily run parallel to the edge, but the color-free zones Z must also, ideal pressure provided that they are defined by their borders.
- the shape of the measuring field shown facilitates the actual probing of the Subsequent analysis of the measurement results. This form is also suitable also especially for the combination of several such measuring fields into one compact Measuring field block.
- Figures 2 and 2.3 do not represent the subject of claim 1, but serve as Explanation.
- a compact measuring field block is shown in FIG. 2.
- it consists of twelve measuring fields, which are combined to form a 3x4 grid-like measuring field block.
- the Individual measuring fields are designated A1 to D3.
- the compact measuring field block for multi-color printing in general i.e. for one any number of basic colors
- Fig. 2.1 shows.
- An exemplary measuring field block for the Finally, 8-color printing is shown in Fig. 2.2. The following is only always refer to the measuring field block of FIG. 2 for four-color printing by way of example.
- Two measuring fields, which are printed side by side so that their are each other Color strips 3 facing one another have the narrow spacing a are shown in FIG. 2.3 shown.
- a should be between 0 and a maximum of 400 mitrometers lie.
- One between the side edge of the measuring surface F and the adjacent strips S formed distance is advantageously not more than 0.3 mm and is in Embodiment about 0.1 mm, so that on the one hand the measuring field is small Has dimensions, but still pushing and / or duplicating in full Extent can be determined.
- measuring field A1 is formed by a solid tone field in black.
- the measuring field A2 is a grid in which the color black with its nominal Area coverage is printed.
- the measuring field B1 is a Combination measuring field, in which the three primary colors cyan, magenta and yellow each with their nominal area coverage are printed on top of each other.
- the measuring fields A3, B2 and C1 are represented by single color grids with nominal area coverage in these three primary colors.
- the three are in the measuring fields B3, C2 and D1 Basic colors printed in full tone individually.
- For the remaining measuring fields C3, D2 and D3 are finally further combination measuring fields, in each of which two the primary colors are printed on top of each other with nominal degrees of area coverage.
- the Color black can also be used as the base color, i.e. referred to as the fourth basic color become.
- the measuring fields A1 to D3 each have an expansion of approximately 1.65 x 1.65 mm2 and the compact measuring field block with twelve such measuring fields have an extension of 6.6 x 5 mm2.
- the trained so miniaturized measuring fields are shown in selected image areas or, as shown, as compact measuring field block also printed on a printed product to be checked and then inline, online or offline using a CCD color camera mounted on a microscope added. The picture could also be taken at one or more image points using a photoelectric sensor with spectral and two-dimensional spatial resolution.
- the captured images are digitized and then software using of a feature-specific algorithm evaluated directly.
- the data can also be saved in the individual colors separated and the binary image thus generated with a corresponding Feature-specific mathematical algorithm can be evaluated A combination both methods are also possible.
- the serve Color strips S of the measuring fields B3, C2, D1 and A1 for determining the register of cyan, Magenta, yellow and black in the circumferential and lateral directions are the relative positions of the measurement fields C2, D1 and A1 for Magenta, yellow and black and thus any register deviations determined.
- Push and Duplication is determined by the fact that the unprinted zone Z between the color measurement areas F and the color strips S is measured.
- the color measuring areas F of the same measuring fields B3, C2, D1, A1 serve to determine the Solid densities of the corresponding colors.
- the area coverage of black, Yellow, magenta and cyan determined.
- the register and shift as well as duplication values could can also be determined using these single-color grids.
- the measuring fields C3, D3 and D2 in each of which two of the three primary colors yellow, magenta and Cyan are printed one above the other in grid tone and the measuring field B1, in which all three of these Basic colors are printed on top of each other in a raster tone, serve to determine the color values and the color assumption in two and three-color overprint.
- the targeted combination of individual measuring fields can be used for pushing and Duplicates generate qualitatively amplified signals, e.g. B. by the combination of the measuring fields B1, C1 and D1 for the basic color yellow, with B2, C2 and D2 for the basic color magenta.
- a preferred image processing comprises a photoelectric sensor with spectral and two-dimensional spatial resolution and image analysis hardware and software that in principle, however, can also be formed by hard-wired hardware, and one Digital computer, preferably a personal computer.
- sensors become the relevant image points of the compact measured value block selected and the recorded signals in, for example, by means of matrix operations XYZ values and subsequently transformed into LAB values and density values.
- FIGS. 3 and 4 show decision trees, which follow the ones obtained without following them Quality data a diagnosis is made. Based on these decision trees there is also one Optimization of color reproduction possible in multi-color print runs.
- the illustrated Decision trees can be refined by adding more quality data, such as the color values of the primary colors, data on ink and water flow on the printing press, Color material temperature, air temperature and humidity or image data of the printed subjects are included.
- color deviations by adjusting the color and / or Dampening solution guidance on the printing press can be corrected.
- the branches represent random points. Each branch is based on the determined quality data decided on which path further to the right is preceded. There are both exclusive branches, each of which only a further path should be followed, and not exclusive Branches where progress is possible on more than one continuing path is.
- Fig. 4 When optimizing the color rendering over several editions (Fig. 4) it can occur that a color deviation due to a disturbance of the tone value increase and a Trapping disorder is caused. In this case, both the color deviation the causing rheology problem and the trapping disorder are remedied, d. H. it deals a non-exclusive branch at the random point.
- each path in the decision tree ends with a on the right Recommended action.
- the correction of one color material-related rheology problem rectifying a trapping disorder, rectifying of pushing or duplicating, recalibrating the printing characteristics of the individual colors or recalibrating the color profile in terms of color management in question.
- a further differentiation of the recommendations for action is also possible. So can for example, the request to fix pushing or duplicating with an indication of possible causes, e.g. B. on the web tension, paper properties or the properties of rubber blankets.
- Both decision trees shown as examples show how effective and Meaningful data compression automatically a quality assessment and, in the case too large deviations, a diagnosis combined with a recommendation for action is generated becomes. This is not enough, for example the known ones for each characteristic circulation-related statistical parameters such as minimum, maximum, mean and Automatically calculate and output scatter.
- measuring fields according to the invention or compact measuring field blocks or one Combining this in conjunction with image analysis and decision tree, it is possible to conventional optimization tools based on densitometry and colorimetry color rendering with the new color management tools into one To unite the entire system.
- neural networks As an alternative to the decision tree, you can use it to derive the diagnosis and the Recommendations for action also include neural networks or unsharp logic algorithms (Fuzzy logic) or a combination thereof.
- unsharp logic algorithms Fuzzy logic
- the neural Networks have the advantage that they can be trained using test patterns:
- each of the two Measuring field blocks have two in the circumferential direction of a printing cylinder one behind the other or in Measuring fields A1 and A2 arranged next to one another in the longitudinal direction of the printing cylinder.
- the two measuring fields A1 and A2 can be two full-color single-color fields or trade two single-color grids in two different primary colors.
- the measuring fields A1 and A2 can each be of the type of the measuring field according to Fig. 1, i.e. With a color measuring surface F and lateral color strips S, may be formed. However, you can too be designed as pure color measuring surfaces F without lateral color strips.
- the two measuring field blocks according to FIG. 5 contain in addition to those of FIGS. 2 to 2.3 two groups of lines L.
- One group of lines L points circumferentially and the others across it in the longitudinal direction of the impression cylinder, i.e. in the lateral direction.
- the left measurement field block in FIG. 5 there are two lines for the circumferential register and the Page register provided.
- the four lines L des are sufficient left measuring field blocks already completely for determining register deviations in Circumferential and lateral direction.
- One of the two is in the circumferential direction and one of the two lateral lines L in the reference color and the other Line printed in the further basic color to be coordinated. From the survey the distance between the two lines running in the same direction L, in general the area enclosed between these two lines becomes L measured, the register deviation, i.e. the register, definitely.
- the right-hand measurement field block of FIG. 5 shows in FIG A third line L on the circumferential direction. Of the three circumferential Lines L are two printed in the reference color and the third in the other basic color. In The lateral direction is again only two lines L, one for the reference color and one for the further basic color. By for the reference color in the circumferential direction two lines L are printed in the measuring field block, can be Evaluation procedure a comparison of the measurements can be carried out. The "white" process due to the two lines L in the reference color, i.e. because of the reference measurement how strong the measured values recorded for the further basic color deviate from the target value.
- the two measurement field blocks of FIG. 5 represent minimal configurations, in the sense that to determine a register deviation at least two lines L in for each direction in which a register deviation is to be determined are included. It can be the in the case of two-color printing, or two any basic colors, if more than just two different basic colors are used in printing be used. In the latter case, several measurement field blocks would be of the type shown in FIG. 5 required to use the register values or register deviations for all To be able to determine primary colors.
- FIG. 6 shows an expansion of the measuring field blocks shown in FIG. 5.
- all register values can already be printed in four directions in the lateral direction are determined if of the lines L drawn in FIG. 6 in the lateral direction at least one line L is provided in each of the four basic colors, including black is.
- the measuring field block according to FIG. 6 is a measuring field block for a two-color printing are two of the five measuring fields shown as single-color full-tone fields, two more as single-color grids, in particular halftone fields, and the fifth field is designed as a suitable combination measuring field.
- the measuring field block of the 6 would therefore already have all the register values and a wealth of densitometric and colorimetric values with a single touch deliver. Furthermore, in this case there are at least two lines L in each of the two directions Reference color printed.
- the distance b between two adjacent measuring fields is ideally about 0.5 mm with lines 0.1 mm wide, i.e. the distance between the lines L and each neighboring measuring fields is then approximately 0.2 mm.
- the distance b should not be more than should be approximately 1 mm and should also be possible in order to be able to obtain measurement signals that are as noise-free as possible not less than about 0.1 mm.
- FIG. 8 shows a measuring field block with integrated lines L, the measuring fields A1 to D3 of which have the same color assignment as that of the measuring field block according to FIG. 2. However, they are Measuring fields A1 to D3 of the block according to FIG. 8 are only designed as color measuring fields F, i.e. A1 to D3 have no lateral color stripes S.
- the arrangement of a 3 x 4 measuring field block shown in the measuring field block saves five Lines L and in the other direction four lines L may be provided, so that two of the in one of the lines L running in both directions can be printed in the reference color. Additional lines could, for example, between adjacent lines L be provided. Such an additional line L is indicated by dashed lines in FIG. 8.
- a measuring field block is shown in FIG. 9, in which the Measuring fields A1 to D3, provided that the register is exact, meet immediately.
- the Lines L run across the measuring fields A1 to D3.
- the measuring field block according to FIG. 9 is on the one hand, the measurement value signals for determining the register deviations are particularly compact however contain comparatively high noise components, which are caused by corresponding Evaluation methods are to be filtered out.
- the integrated lines L run without pressure to determine the register deviations the two other primary colors to the reference color; preferably they run through the middle of the stripes. 10 corresponds to that of FIG. 8, however with the difference that in addition to the lines L, the individual measuring fields A1 to D3 have lateral color stripes S, that is, each individually with different color assignments correspond to the measuring field of FIG. 1.
- the lines L are preferably used to determine the Register values and the lateral color stripes S preferably for determining sliding and / or Duplication values.
- both the measurement fields and the lines form L each a grid, its rows and columns or its lines in the circumferential direction and in Point to the side.
- the two grids are placed on top of each other.
- the Lines L in the circumferential direction and also parallel and equally spaced in the lateral direction arranged to each other Other arrangements of the lines L are possible in principle, the exact alignment in the circumferential and lateral direction and also the parallelism as well Equal distance is preferred, however. In concrete use, however, from the equality of distances are deviated.
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- Spectrometry And Color Measurement (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
- Printing Methods (AREA)
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
- Accessory Devices And Overall Control Thereof (AREA)
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
- Recording Measured Values (AREA)
Description
- Fig. 1
- ein Messfeld,
- Fig. 2
- einen kompakten Messfeldblock mit nebeneinander angeordneten Messfeldern nach Fig. 1,
- Fig. 2.1
- die Verallgemeinerung des Messfeldblocks der Fig. 2,
- Fig. 2.2
- einen kompakten Messfeldblock für den 8-Farbendruck,
- Fig. 2.3
- zwei nebeneinander angeordnete Messfelder eines Messfeldblocks,
- Fig. 3
- einen Entscheidungsbaum zur Optimierung der Farbwiedergabe in einer einzelnen Auflage,
- Fig. 4
- einen Entscheidungsbaum zur Optimierung der Farbwiedergabe über mehrere Auflagen,
- Fig. 5
- zwei Messfeldblöcke mit integrierten Linien zur Bestimmung von Passer werten,
- Fig. 6
- eine Erweiterung der Messfeldblöcke nach Fig. 5,
- Fig. 7
- eine Variante eines Messfeldblocks mit integrierten Linien,
- Fig. 8
- den Messfeldblock nach Fig. 2 mit integrierten Linien, jedoch ohne Farbstreifen,
- Fig. 9
- eine Variante des Messfeldblocks nach Fig. 8 und
- Fig. 10
- den Messfeldblock nach Fig. 2 mit integrierten Linien.
Claims (17)
- Messfeldblock zur Erfassung von Qualitätsdaten im Mehrfarben-Auflagendruck, dera) optisch abtastbar auf einem Druckerzeugnis aufgedruckte Messfelder (A1-D3) mit je wenigstens einer Farbmessfläche (F) zur Ermittlung einer Farbdichte, einer Flächenbedeckung oder eines Farbwertes für jedes der Messfelder (A1-D3) undb) zur gleichzeitigen Bestimmung von Werten für eine Registerabweichung je wenigstens eine Linie (L) in einer der Grundfarben des Druckerzeugnisses aufweist,
dadurch gekennzeichnet, dassc) die Linien (L), zwischen denen ein Wert für die Registerabweichung ermittelt wird, bei exaktem Register in Umfangsrichtung oder in Längsrichtung eines Druckzylinders beabstandet angeordnet sind,d) wobei sich zwischen den Linien (L), zwischen denen ein Wert für die Registerabweichung ermittelt wird, zumindest ein Teil eines der Messfelder (A1-D3) befindet. - Messfeldblock nach Anspruch 1, dadurch gekennzeichnet, dass wenigstens eine der Linien (L) zwischen wenigstens zwei benachbarten Messfeldern (A1-D3) des Messfeldblocks verläuft.
- Messfeldblock nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass unmittelbar beidseits der wenigstens einen Linie (L) zu den jeweils benachbart zu dieser Linie (L) angeordneten Messfeldern (A1-D3) zumindest bei exaktem Register eine unbedruckte, streifenförmige Fläche verbleibt.
- Messfeldblock nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass wenigstens eine Linie (L) durch wenigstens eines der Messfelder (A1-D3) des Messfeldblocks verläuft.
- Messfeldblock nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in jeder der Grundfarben des Drucks wenigstens eine Linie (L) für wenigstens eine Richtung, in der eine Registerabweichung bestimmt werden soll, vorgesehen ist.
- Messfeldblock nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass in einer als Referenzfarbe dienenden Grundfarbe wenigstens zwei Linien (L) für wenigstens eine Richtung, in der eine Registerabweichung bestimmt werden soll, vorgesehen ist.
- Messfeldblock nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Linien (L) bei exaktem Register parallel beabstandet in eine erste und eine dazu senkrechte zweite Richtung weisen, wobei in jeder der beiden Richtungen wenigstens eine Linie (L) in jeder der Grundfarben vorgesehen ist.
- Messfeldblock nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Messfelder (A1-D3) zur gleichzeitigen Gewinnung von Passer- und/oder Schiebeund/oder Dublierwerten je wenigstens einen seitlichen Farbstreifen (S) aufweisen, der im gleichen Druck zusammen mit der Farbmessfläche (F) seines Messfeldes (A1-D3) gedruckt wird, in Bezug auf die Abmessungen der Farbmessfläche (F) seines Messfeldes (A1-D3) schmal ist und in einem vorgegebenen, ebenfalls in Bezug auf die Abmessungen dieser Farbmessfläche (F) geringen seitlichen Abstand zur Farbmessfläche (F) verläuft.
- Messfeldblock nach dem vorhergehenden Anspruch, dadurch gekennzeichnet, dass die Messfelder (A1-D3) je wenigstens zwei seitliche Farbstreifen (S) zur Bestimmung des Schiebens und Dublierens in Umfangs- und Seitenrichtung aufweisen.
- Messfeldblock nach Anspruch 8 oder 9, dadurch gekennzeichnet, dass die Farbmessfläche (F) und der Farbstreifen (S) des gleichen Messfeldes (A1-D3) durch eine farbfreie Zone (Z) voneinander getrennt sind.
- Messfeldblock nach einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass der Farbstreifen (S) geradlinig randparallel zur Farbmessfläche (F) seines Messfeldes (A1-D3) verläuft.
- Messfeldblock nach einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass die Farbmessflächen (F) und die Farbstreifen (S) rechteckig sind.
- Messfeldblock nach einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass die Farbmessflächen (F) nahe jedes ihrer Ränder einen Farbstreifen (S) aufweisen.
- Messfeldblock nach einem der Ansprüche 8 bis 13, dadurch gekennzeichnet, dass die Messfelder (A1-D3), exakter Umfangs- und Seitenpasser vorausgesetzt, mit ihren seitlichen Farbstreifen (S) stumpf aneinanderstoßend oder eng beabstandet in einem vorgegebenen Abstand (a) einen kompakten Messfeldblock bilden.
- Messfeldblock nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass als Messfelder (A1-D3) Einzelfarbenvolltonfelder (B3, C2, D1, A1) in den Grundfarben (Cyan, Magenta, Gelb, Schwarz) vorgesehen sind.
- Messfeldblock nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass als Messfelder (A1-D3) Einzelfarbenrasterfelder (A3, B2, C1, A2) vorgesehen sind, in denen je eine der Grundfarben (Cyan, Magente, Gelb, Schwarz) mit ihrem nominellen Flächendeckungsgrad gedruckt ist.
- Verfahren zur Erfassung von Qualitätsdaten im Mehrfarben-Auflagendruck, bei dema) wenigstens Einzelfarbenmessfelder (B3, C2, D1) in den Grundfarben (Cyan, Magenta, Gelb) umfassende Farbmessfelder (A1-D3), die je wenigstens eine zur Gewinnung von Farbwerten oder Farbdichtewerten oder Flächenbedeckungen geeignete Farbmessfläche (F) aufweisen, und Linien (L) in den Grundfarben (Cyan, Magenta, Gelb, Schwarz) auf ein Druckerzeugnis aufgedruckt werden,b) die Messfelder (A1-D3) und die Linien (L) optisch abgetastet undc) das remittierte Licht ausgewertet wird undd) die Messfelder (A1-D3) und Linien (L) in einem gemeinsamen Messfeldblock gedruckt werden,
dadurch gekennzeichnet, dasse) die Linien (L), zwischen denen ein Wert für die Registerabweichung ermittelt wird, bei exaktem Register in Umfangsrichtung oder in Längsrichtung eines Druckzylinders beabstandet angeordnet werden undf) zur Ermittlung eines Werts für die Registerabweichung der Abstand zwischen zwei in Umfangsrichtung oder in Längsrichtung verlaufenden Linien (L) vermessen wird, zwischen denen sich zumindest ein Teil eines der Messfelder (A1-D3) befindet.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19639014 | 1996-09-23 | ||
DE1996139014 DE19639014C2 (de) | 1996-09-23 | 1996-09-23 | Messfeldgruppe und Verfahren zur Erfassung von optisch drucktechnischen Größen im Mehrfarben-Auflagendruck |
DE1997138923 DE19738923A1 (de) | 1997-09-05 | 1997-09-05 | Messfeldblock und Verfahren zur Erfassung von Qualitätsdaten im Mehrfarben-Auflagendruck |
DE19738923 | 1997-09-05 |
Publications (2)
Publication Number | Publication Date |
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EP0836942A1 EP0836942A1 (de) | 1998-04-22 |
EP0836942B1 true EP0836942B1 (de) | 2001-12-12 |
Family
ID=26029696
Family Applications (2)
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EP97810654A Expired - Lifetime EP0836941B1 (de) | 1996-09-23 | 1997-09-15 | Messfeldgruppe und Verfahren zur Erfassung von Qualitätsdaten im Mehrfarben Auflagendruck |
EP97810655A Expired - Lifetime EP0836942B1 (de) | 1996-09-23 | 1997-09-15 | Messfeldblock und Verfahren zur Erfassung von Qualitätsdaten im Mehrfarben-Auflagendruck |
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EP97810654A Expired - Lifetime EP0836941B1 (de) | 1996-09-23 | 1997-09-15 | Messfeldgruppe und Verfahren zur Erfassung von Qualitätsdaten im Mehrfarben Auflagendruck |
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US (2) | US6109183A (de) |
EP (2) | EP0836941B1 (de) |
JP (2) | JPH10305651A (de) |
AT (2) | ATE202520T1 (de) |
DE (2) | DE59703899D1 (de) |
DK (2) | DK0836941T3 (de) |
ES (2) | ES2160315T3 (de) |
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US7161710B1 (en) | 2000-09-01 | 2007-01-09 | Adobe Systems Incorporated | Composite rendering intent for color proofing applications |
EP1762387B1 (de) * | 2000-10-13 | 2014-05-14 | Dainippon Screen Mfg., Co., Ltd. | Druckpresse ausgerüstet mit Messapparat zur Messung der Farbfelder |
US6796240B2 (en) | 2001-06-04 | 2004-09-28 | Quad/Tech, Inc. | Printing press register control using colorpatch targets |
US7202973B2 (en) | 2001-07-04 | 2007-04-10 | Dainippon Screen Mfg. Co., Ltd. | Patch measurement device |
DE10143942A1 (de) * | 2001-09-07 | 2003-03-27 | Wifag Maschf | Prüfmittel und Verfahren zur Kontrolle des Offset- und Digitaldrucks |
US6684773B2 (en) | 2002-03-21 | 2004-02-03 | Lexmark International, Inc. | Target and algorithm for color laser printhead alignment |
US7209600B2 (en) * | 2002-06-24 | 2007-04-24 | Eastman Kodak Company | Synchronization of components for printing |
US7225738B2 (en) * | 2003-02-28 | 2007-06-05 | Hewlett-Packard Development Company, L.P. | Eye marks in image processing |
JP4072101B2 (ja) * | 2003-06-30 | 2008-04-09 | リョービ株式会社 | 両面カラー印刷物におけるカラーバーの認識方法並びにカラー印刷品質管理システム及びカラー印刷品質評価装置 |
US7605959B2 (en) | 2005-01-05 | 2009-10-20 | The Ackley Martinez Company | System and method of color image transformation |
DE102005060893C5 (de) * | 2005-12-20 | 2019-02-28 | Manroland Goss Web Systems Gmbh | Verfahren zur Ermittlung eines drucktechnischen Messwertes |
JP2009000882A (ja) * | 2007-06-21 | 2009-01-08 | Komori Corp | 凸版印刷機のインキ供給量調整方法及び装置 |
EP2368711B1 (de) * | 2010-03-25 | 2012-12-05 | Modesto Luengo Bada | Marke, Verfahren und System zur Messung von Farbqualitätsparametern |
DE102012104584A1 (de) | 2012-05-29 | 2013-12-05 | Océ Printing Systems GmbH & Co. KG | Verfahren zum Steuern eines Farbdruckers oder Farbkopierers |
DE102014223579A1 (de) * | 2014-11-19 | 2016-05-19 | Heidelberger Druckmaschinen Ag | Druckkontrollstreifen mit gesplitteten Marken |
JP6030732B1 (ja) * | 2015-09-09 | 2016-11-24 | 株式会社小森コーポレーション | 見当誤差量検出方法および装置 |
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- 1997-09-15 AT AT97810654T patent/ATE202520T1/de not_active IP Right Cessation
- 1997-09-15 ES ES97810654T patent/ES2160315T3/es not_active Expired - Lifetime
- 1997-09-15 EP EP97810654A patent/EP0836941B1/de not_active Expired - Lifetime
- 1997-09-15 AT AT97810655T patent/ATE210555T1/de not_active IP Right Cessation
- 1997-09-15 DE DE59703899T patent/DE59703899D1/de not_active Expired - Lifetime
- 1997-09-15 DE DE59705757T patent/DE59705757D1/de not_active Expired - Lifetime
- 1997-09-15 EP EP97810655A patent/EP0836942B1/de not_active Expired - Lifetime
- 1997-09-15 DK DK97810655T patent/DK0836942T3/da active
- 1997-09-15 ES ES97810655T patent/ES2169342T3/es not_active Expired - Lifetime
- 1997-09-22 US US08/935,018 patent/US6109183A/en not_active Expired - Fee Related
- 1997-09-22 JP JP9273338A patent/JPH10305651A/ja active Pending
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Also Published As
Publication number | Publication date |
---|---|
JPH10305652A (ja) | 1998-11-17 |
ES2169342T3 (es) | 2002-07-01 |
DK0836941T3 (da) | 2001-10-22 |
DK0836942T3 (da) | 2002-02-18 |
DE59703899D1 (de) | 2001-08-02 |
EP0836942A1 (de) | 1998-04-22 |
US6109183A (en) | 2000-08-29 |
EP0836941B1 (de) | 2001-06-27 |
ES2160315T3 (es) | 2001-11-01 |
JPH10305651A (ja) | 1998-11-17 |
EP0836941A1 (de) | 1998-04-22 |
DE59705757D1 (de) | 2002-01-24 |
ATE210555T1 (de) | 2001-12-15 |
US6192801B1 (en) | 2001-02-27 |
ATE202520T1 (de) | 2001-07-15 |
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