EP0000328A1 - Messverfahren und Vorrichtung zum Ermitteln von Fehlern auf bedruckten Bogen und Bahnen - Google Patents

Messverfahren und Vorrichtung zum Ermitteln von Fehlern auf bedruckten Bogen und Bahnen Download PDF

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Publication number
EP0000328A1
EP0000328A1 EP78100106A EP78100106A EP0000328A1 EP 0000328 A1 EP0000328 A1 EP 0000328A1 EP 78100106 A EP78100106 A EP 78100106A EP 78100106 A EP78100106 A EP 78100106A EP 0000328 A1 EP0000328 A1 EP 0000328A1
Authority
EP
European Patent Office
Prior art keywords
measuring
screen
fields
pushing
values
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP78100106A
Other languages
German (de)
English (en)
French (fr)
Inventor
Willi Jeschke
Gerhard Löffler
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.)
Heidelberger Druckmaschinen AG
Original Assignee
Heidelberger Druckmaschinen AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Heidelberger Druckmaschinen AG filed Critical Heidelberger Druckmaschinen AG
Publication of EP0000328A1 publication Critical patent/EP0000328A1/de
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F33/00—Indicating, counting, warning, control or safety devices
    • B41F33/0036—Devices for scanning or checking the printed matter for quality control
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S101/00—Printing
    • Y10S101/36—Means for registering or alignment of print plates on print press structure

Definitions

  • the invention relates to a method for determining errors on printed sheets and webs, in particular pushing and / or duplicating with the aid of a reflectance measuring device and measuring fields, and a device for carrying out this method.
  • the solid color density on the one hand the solid color density and on the other hand the halftone color density.
  • the halftone color density is the most important factor for the tonal value reproduction of a rastered image.
  • the change in the size of the halftone dots during application and production printing due to process influences, e.g. B. by changing the speed of the printing ink, by changing the printing material, the printing plate copy, the blanket, the printing supply, the processing and by duplicating in multi-color offset printing, a control by measuring the screen density is necessary to create the possibility, based on the determined Intervene in the printing process to optimize the measured values.
  • measuring or control strips printed on the printed product An essential part of known control systems are the measuring or control strips printed on the printed product. Since the space on the printed product is scarce or expensive, these measuring or control strips must on the one hand provide the largest possible amount of measurable information about spot color density, screen values, processing, color acceptance and the like on a surface that is as small as possible. On the other hand, these measuring or control fields must have a minimum size, since a specific measuring spot diameter is required to measure the integral density of a raster measuring field by means of a densitometer and to obtain a representative measured value.
  • the invention has for its object to develop a measuring method with which not only changes in tone reproduction, but also changes in the printed image due to sliding and / or duplication in size and direction can be determined and used for direct use for machine corrections.
  • This object is achieved by measuring the reflectance values of four measuring fields, one of which is a solid tone field and the three remaining line screen measuring fields, the screen lines of which have different screen angles, but the same screen width and the same screen tone values in the film, and the arithmetical determination of the screen tone value in printing with deduction the influence of pushing and duplicating from the measured four remission values or from the screen tone values that can be determined from them in the three line screen measuring fields and by the optional display of these values.
  • the halftone values as well as shifting and / or duplication errors can be determined quickly with little technical effort and corrected by appropriate intervention in the printing process, so that a larger amount of waste and additional downtimes of the machine are avoided and a high Print quality can be achieved across the entire print run.
  • An example device for performing the method according to the invention is that on the sheet to be checked or Lanes four measuring fields are printed together in a measuring field block, of which one measuring field is a full tone measuring field and the three other line grid measuring fields, the screen angles of which are different, that a reflectance measuring device is provided for measuring the measuring fields and that a computer for linking the determined remission values and a display device is provided.
  • a particular advantage of this device is that by means of a single reflectance measuring device, both errors in the tonal value reproduction as well as shifting and / or duplicating errors are determined simply and precisely.
  • a measuring field block 2 is printed on a sheet 1 at the start of printing.
  • the measuring field block 2 is divided into four individual measuring fields, one of which is a full tone measuring field 3 and the other three are designed as line grid measuring fields 4, 5 and 6.
  • the grid lines of the line grid measuring field 4 are aligned parallel to the leading edge of the sheet 1.
  • the raster lines of the line raster measuring field 5 run at an angle of 60 9 and the raster lines of the line raster measuring field 6 each run at an angle of 120 0 to the raster lines of the line raster measuring field 4.
  • the line screen measuring fields 4, 5 and 6 have the advantage over the much more commonly used dot screen fields that the additional percentage of a possible shift in the screen tone value increase in the print can be measured and calculated.
  • the choice of three such line grid fields 4, 5 and 6 with grid lines each having the same difference in inclination angle from one another enables the use of particularly simple calculation formulas.
  • the printer is given the possibility of an additional visual control of the printed product with regard to pushing the print.
  • the line grid field 14 is of a smaller width than the other measuring fields 4 to 6, and its grid lines, like those of the line grid measuring field 4, are aligned parallel to the leading edge of the sheet.
  • the line grid 14 in connection with its two adjacent line grid measuring fields 5, 6 are used for visual control, the assessment of whether there is a pushing of the pressure by its ge total observation and the impression of a possible line broadening obtained in one or more of the three line grid (measuring) fields 5, 6 and 14.
  • the sheet 1 is placed on a measuring table 7 in the exemplary embodiment.
  • a freely movable densitometer 8 can be used as the remission measuring device, which can optionally be placed anywhere on the sheet 1.
  • the densitometer 8 is arranged displaceably over the entire width of the sheet 1 in a measuring bar 9.
  • the measuring bar 9 is in turn slidable on two lateral guides 10 over the entire length of the measuring table 7 above the sheet 1, so that the densitometer 8 can be used to measure at any desired location on the sheet 1.
  • the measuring bar 9 can also have a larger number of densitometers 8 for the simultaneous measurement of the measuring fields 3 to 6 several measuring field blocks 2 can be equipped.
  • the densitometers can be stationary or movable.
  • a computer 11 is provided on the left side of the measuring table 7 for linking the measured reflectance values with an input and output keyboard 12 and a display device 13.
  • the reflectance values of the solid tone measuring field 3 and the three line halftone measuring fields 4, 5 and 6 are measured by means of the densitometer 8 in a first method step for evaluating the measuring field block 2. In addition to the solid density, three halftone values are obtained.
  • the screen tone value increase in printing by pushing and / or duplicating Z s and the directional angle ⁇ are not, but only the screen tone value in printing FD (pushing and / or duplicating eliminated) is calculated.
  • the halftone value in print F D (pushing and / or duplicating eliminated) is equal to the sum of the determined halftone values F (with pushing and / or duplicating) of those two fields with the lower values minus the determined halftone value F (with pushing and / or duplicating) of the third field, that is, the one with the highest value.
  • a comparison of the calculated three halftone tone values in print F shows whether pushing and / or duplicating is present.
  • the sliding or. Duplication directions in the three ranges ⁇ 0 ° to 60 0 , 60 ° to 120 o and 120 o to 180 ° and the special cases a 0 °, 30 °, 60 °, 90 °, 120 and 150 ° can be specified.
  • the increase in screen value by pushing and / or duplicating Z S is approximately equal to the determined screen tone value F of the field with the highest value minus the already determined screen tone value F D (pushing and duplicating eliminated) in the print.
  • the Screen tone value of a screen measurement field is composed of the sum of the known screen tone value in the film F F 'of the screen tone value increase in printing without pushing and / or duplicating Z D and the screen tone value increase in printing by pushing and / or duplicating Z s , both the screen tone value increase in print without pushing and / or duplication Z D and the dot gain in printing by pushing and / or duplicating Z S are unknown and Z s is also dependent on the shift direction ⁇ .
  • the shift angle ⁇ of the vector Z S shown in FIG. 4 can be between 00 and 360 °, depending on whether the print shifts and / or doubles in relation to the running direction of the printing material forwards or backwards or exactly parallel to it.
  • the densitometer 8 cannot make a statement as to whether the dot gain by shifting and / or doubling Z S is to the front or to the rear, to the right or to the left, but can only display absolute values that are independent of the direction, three arithmetic areas result analogously to the three line screen measuring fields for which different equations apply. Accordingly, a statement can only be made for the angle of the line of action of pushing and / or duplicating, for which purpose the output equations, transformed accordingly, are entered into the computer 11 as a computer program.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Image Processing (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Force Measurement Appropriate To Specific Purposes (AREA)
EP78100106A 1977-07-14 1978-06-06 Messverfahren und Vorrichtung zum Ermitteln von Fehlern auf bedruckten Bogen und Bahnen Withdrawn EP0000328A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2731842A DE2731842C3 (de) 1977-07-14 1977-07-14 Verfahren zum Ermitteln von durch Schieben und/oder Dublieren hervorgerufenen Veränderungen im Rastertonwert einer Farbe bedruckter Bogen oder Bahnen
DE2731842 1977-07-14

Publications (1)

Publication Number Publication Date
EP0000328A1 true EP0000328A1 (de) 1979-01-24

Family

ID=6013934

Family Applications (1)

Application Number Title Priority Date Filing Date
EP78100106A Withdrawn EP0000328A1 (de) 1977-07-14 1978-06-06 Messverfahren und Vorrichtung zum Ermitteln von Fehlern auf bedruckten Bogen und Bahnen

Country Status (15)

Country Link
US (1) US4606633A (nl)
EP (1) EP0000328A1 (nl)
JP (1) JPS5421788A (nl)
AT (1) AT390518B (nl)
AU (1) AU519868B2 (nl)
BE (1) BE11T1 (nl)
CA (1) CA1111279A (nl)
CH (1) CH649156A5 (nl)
DE (1) DE2731842C3 (nl)
ES (1) ES471657A1 (nl)
FR (1) FR2455274A1 (nl)
GB (1) GB2040809B (nl)
IT (1) IT1108672B (nl)
NL (1) NL176922C (nl)
SE (1) SE435658B (nl)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196431A2 (de) * 1985-03-21 1986-10-08 Felix Brunner Verfahren, Regelvorrichtung und Hilfsmittel zur Erzielung eines gleichförmigen Druckresultats an einer autotypisch arbeitenden Mehrfarbenoffsetdruckmaschine
EP0221472A2 (en) * 1985-10-25 1987-05-13 Dai Nippon Insatsu Kabushiki Kaisha An apparatus and a method for measuring registration errors of a print
WO2003023748A2 (de) 2001-09-11 2003-03-20 Ego S.R.O. Lichtdiffusor für led-dioden und leuchtpaneel
DE102010036249A1 (de) 2009-10-01 2011-04-07 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zur Ermittlung von Passerabweichungen mittels Rekursionsanalyse
WO2019219452A1 (de) 2018-05-17 2019-11-21 Evonik Degussa Gmbh Lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere des strukturtyps aba
WO2019219446A1 (de) 2018-05-17 2019-11-21 Evonik Degussa Gmbh Lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere des strukturtyps aba
EP3611216A1 (de) 2018-08-15 2020-02-19 Evonik Operations GmbH Lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere des strukturtyps aba
EP3611217A1 (de) 2018-08-15 2020-02-19 Evonik Operations GmbH Lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere des strukturtyps aba

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5698634A (en) * 1980-01-09 1981-08-08 Dainippon Printing Co Ltd Printed matter testing device
DE3232490A1 (de) * 1981-09-04 1983-03-31 M.A.N.- Roland Druckmaschinen AG, 6050 Offenbach Vorrichtung zum ermitteln und auswerten von farbmessfeldern auf einem druckbogen
DE3232577A1 (de) * 1981-09-12 1983-03-31 Dainippon Screen Manufacturing Co., Ltd., Kyoto Verfahren und vorrichtung zur farbkonzentrationsmessung in druckerzeugnissen
DE3219744A1 (de) * 1982-05-26 1983-12-01 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Einrichtung fuer die stand- und passgerechte filmmontage von druckkontrollstreifen
JPS60242343A (ja) * 1984-05-16 1985-12-02 Tokyo Hikari Denshi Kogyo Kk 複写物の品質評価装置およびその使用方法
DE3643721A1 (de) * 1986-12-20 1988-06-30 Heidelberger Druckmasch Ag Druckkontrollstreifen
DE3643720C2 (de) * 1986-12-20 1994-03-10 Heidelberger Druckmasch Ag Verfahren zum Ermitteln von Steuer- /Regelgrößen für das Farbwerk von Druckmaschinen
DE3830731A1 (de) * 1988-09-09 1990-03-22 Heidelberger Druckmasch Ag Vorrichtung zur farbmessung
DE9002437U1 (de) * 1990-03-02 1990-05-03 MAN Roland Druckmaschinen AG, 6050 Offenbach Scanner zur Ermittlung der Farbdichtewerte von Druckvorlagen variabler Größen
EP0599482A3 (en) * 1992-11-27 1996-11-20 Moore Business Forms Inc A method for the evaluation of print quality in a substrate.
DE4343810C1 (de) * 1993-12-22 1995-04-20 Roland Man Druckmasch Fotoelektrischer Meßkopf
US5816164A (en) * 1994-04-20 1998-10-06 Heidelberger Druckmaschinen Ag Method and apparatus for monitoring image formation on a printing form
DE19639014C2 (de) * 1996-09-23 1998-12-03 Wifag Maschf Messfeldgruppe und Verfahren zur Erfassung von optisch drucktechnischen Größen im Mehrfarben-Auflagendruck
DE19638967C2 (de) * 1996-09-23 1998-12-17 Empa Messfeldgruppe und Verfahren zur Erfassung von optisch drucktechnischen Größen im Mehrfarben-Auflagendruck
DK0836942T3 (da) 1996-09-23 2002-02-18 Wifag Maschf Måleblok og fremgangsmåde til registrering af kvalitetsdata i flerfarveoplagstryk
JP4816837B2 (ja) * 2000-03-16 2011-11-16 凸版印刷株式会社 スラーゲージ
US6629292B1 (en) 2000-10-06 2003-09-30 International Business Machines Corporation Method for forming graphical images in semiconductor devices
US7225738B2 (en) * 2003-02-28 2007-06-05 Hewlett-Packard Development Company, L.P. Eye marks in image processing
CN102555445B (zh) * 2012-01-05 2013-12-04 天长吉阳新能源有限公司 一种晶硅太阳能电池丝网印刷测试方法

Citations (4)

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US2968988A (en) * 1955-03-18 1961-01-24 Crosfield J F Ltd Apparatus for indicating changes in ink
FR1333539A (fr) * 1961-11-16 1963-07-26 American Can Co Perfectionnements apportés aux procédés d'impression par simili-gravure
DE1696530B1 (de) * 1964-02-07 1970-07-02 Firm Of John Dickinson Schneid UEberwachungsstreifen fuer die Anwendung bei lithographischen Druckverfahren
DE2023467A1 (de) * 1970-05-13 1971-11-25 Forschungsges F Druck U Reprod Vorrichtung zur Messung der Farbdichte

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CH482252A (de) * 1969-04-16 1969-11-30 Landis & Gyr Ag Verfahren und Vorrichtung zum Nachweis einer Oberflächenstruktur mit optischer Vorzugsrichtung, insbesondere zum Nachweis von Tiefdruck zur Echtheitsprüfung von Banknoten
US3658430A (en) * 1970-11-27 1972-04-25 Gaf Corp Apparatus for detecting, quantizing and displaying the position of registration mark on a sheet
US4003660A (en) * 1975-12-03 1977-01-18 Hunter Associates Laboratory, Inc. Sensing head assembly for multi-color printing press on-line densitometer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2968988A (en) * 1955-03-18 1961-01-24 Crosfield J F Ltd Apparatus for indicating changes in ink
FR1333539A (fr) * 1961-11-16 1963-07-26 American Can Co Perfectionnements apportés aux procédés d'impression par simili-gravure
DE1696530B1 (de) * 1964-02-07 1970-07-02 Firm Of John Dickinson Schneid UEberwachungsstreifen fuer die Anwendung bei lithographischen Druckverfahren
DE2023467A1 (de) * 1970-05-13 1971-11-25 Forschungsges F Druck U Reprod Vorrichtung zur Messung der Farbdichte

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
DER POLYGRAPH, Jahhrgang 1971, Nr. 9, 5. Mai 1971, Frankfurt (DE) W. REBNER et al. "Untersuchung von Raster Uebertragungsvorg{nge als Voraussetzung zur Prozesssteuerung in der Buchdruck-u. Offsetreproduktion", Seiten 516, 517, 520-522. *

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0196431A2 (de) * 1985-03-21 1986-10-08 Felix Brunner Verfahren, Regelvorrichtung und Hilfsmittel zur Erzielung eines gleichförmigen Druckresultats an einer autotypisch arbeitenden Mehrfarbenoffsetdruckmaschine
EP0196431A3 (en) * 1985-03-21 1988-07-20 Felix Brunner Method, control device and auxiliary means for obtaining uniform printing results from a multicolour half-tone offset printing machine
EP0221472A2 (en) * 1985-10-25 1987-05-13 Dai Nippon Insatsu Kabushiki Kaisha An apparatus and a method for measuring registration errors of a print
EP0221472A3 (en) * 1985-10-25 1988-08-10 Dai Nippon Insatsu Kabushiki Kaisha An apparatus and a method for measuring registration errors of a print
WO2003023748A2 (de) 2001-09-11 2003-03-20 Ego S.R.O. Lichtdiffusor für led-dioden und leuchtpaneel
CN102029783A (zh) * 2009-10-01 2011-04-27 海德堡印刷机械股份公司 用于借助递推分析求得对版偏差的方法和装置
DE102010036249A1 (de) 2009-10-01 2011-04-07 Heidelberger Druckmaschinen Ag Verfahren und Vorrichtung zur Ermittlung von Passerabweichungen mittels Rekursionsanalyse
CN102029783B (zh) * 2009-10-01 2014-08-06 海德堡印刷机械股份公司 用于借助递推分析求得对版偏差的方法和装置
US8813647B2 (en) 2009-10-01 2014-08-26 Heidelberger Druckmaschinen Ag Method and device for determining register deviations through recursion analysis
WO2019219452A1 (de) 2018-05-17 2019-11-21 Evonik Degussa Gmbh Lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere des strukturtyps aba
WO2019219446A1 (de) 2018-05-17 2019-11-21 Evonik Degussa Gmbh Lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere des strukturtyps aba
US11345783B2 (en) 2018-05-17 2022-05-31 Evonik Operations Gmbh Linear polydimethylsiloxane-polyoxyalkylene block copolymers of the structure type ABA
US11359056B2 (en) 2018-05-17 2022-06-14 Evonik Operations Gmbh Linear polydimethylsiloxane-polyoxyalkylene block copolymers of the structure type ABA
EP3611216A1 (de) 2018-08-15 2020-02-19 Evonik Operations GmbH Lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere des strukturtyps aba
EP3611217A1 (de) 2018-08-15 2020-02-19 Evonik Operations GmbH Lineare polydimethylsiloxan-polyoxyalkylen-blockcopolymere des strukturtyps aba

Also Published As

Publication number Publication date
FR2455274A1 (fr) 1980-11-21
GB2040809A (en) 1980-09-03
US4606633A (en) 1986-08-19
JPS5421788A (en) 1979-02-19
NL176922C (nl) 1985-07-01
AT390518B (de) 1990-05-25
NL176922B (nl) 1985-02-01
AU3720878A (en) 1979-12-20
IT1108672B (it) 1985-12-09
AU519868B2 (en) 1981-12-24
GB2040809B (en) 1982-11-03
JPS6128082B2 (nl) 1986-06-28
FR2455274B1 (nl) 1981-10-30
ATA465678A (de) 1989-10-15
SE435658B (sv) 1984-10-08
CH649156A5 (de) 1985-04-30
DE2731842A1 (de) 1979-01-18
CA1111279A (en) 1981-10-27
DE2731842B2 (de) 1979-07-05
ES471657A1 (es) 1979-10-01
IT7868666A0 (it) 1978-07-13
BE11T1 (fr) 1979-12-07
SE7906683L (sv) 1979-08-09
NL7815005A (nl) 1979-09-28
DE2731842C3 (de) 1983-12-22

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