EP0095126B1 - Verfahren zur farbmetrischen Auswertung eines beiderseits bedruckten Bogens - Google Patents

Verfahren zur farbmetrischen Auswertung eines beiderseits bedruckten Bogens Download PDF

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Publication number
EP0095126B1
EP0095126B1 EP83104845A EP83104845A EP0095126B1 EP 0095126 B1 EP0095126 B1 EP 0095126B1 EP 83104845 A EP83104845 A EP 83104845A EP 83104845 A EP83104845 A EP 83104845A EP 0095126 B1 EP0095126 B1 EP 0095126B1
Authority
EP
European Patent Office
Prior art keywords
colour
sheet
assigned
measuring
sides
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.)
Expired
Application number
EP83104845A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0095126A3 (en
EP0095126A2 (de
Inventor
Helmut Dr. Kipphan
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 EP0095126A2 publication Critical patent/EP0095126A2/de
Publication of EP0095126A3 publication Critical patent/EP0095126A3/de
Application granted granted Critical
Publication of EP0095126B1 publication Critical patent/EP0095126B1/de
Expired 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

Definitions

  • the invention relates to a method for colorimetric evaluation of a sheet printed on both sides using a scanning densitometer, the measuring head of which is guided under machine control along a print control strip to be evaluated and thereby generates a large number of color density values representing the color properties of the control strip.
  • So-called densitometers are widely used for colorimetric evaluation of a sheet, particularly in the printing industry. They enable the printer to evaluate the quality of the printed products and to adjust the printing units accordingly with regard to the desired result by evaluating a color measurement strip that is also printed and comparing the measured values found with target values.
  • both sheets or web pages are printed in one machine pass. If one wanted to monitor or control the individual colors of the two sides using the known measuring devices by means of pressure control strips, it was previously necessary to mount separate sets of measuring strips on both sides of the sheet to be printed. This does not create any problems when evaluating using hand densitometers as long as the measured values have been entered on the measuring field itself or in prepared lists.
  • an automatic measuring system with data output on the screen and / or printer and / or direct data transmission to the control unit of a printing press, however, it is disadvantageous that the measured values determined cannot be sorted by color and can also be output with correct pages. This complicates the handling of such measuring devices for the printer.
  • the object of the invention is to provide a method for colorimetric evaluation of a sheet printed on both sides, in which individual colors are monitored on both sides by means of print control strips and the associated inking units are controlled, such that when using an automatic measuring system with data output on the screen and / or Printer and / or direct data transmission to the control unit of a printing press, the measured values are sorted in color and additionally output with correct pages.
  • the object is achieved according to the characterizing features of claim 1.
  • the advantages of the solution found are that only one set of control strips is required with a measuring system operating according to the described method.
  • the measuring points for the individual colors are precisely defined and the measured values are sorted by color and output correctly. Only one data carrier has to be used, which ensures that the color-oriented data transmission to a control unit is unique, because each color code can only be assigned once.
  • the method offers the advantage that the different lateral arrangement of the different measuring fields on the front and back of the measuring device automatically detects whether it is the Schön or the reverse side, so that it is the same whether the Schön or the first the back pressure side is measured.
  • Fig. 1 shows a section of a print control strip 1, in which the individual measuring fields 2 for the respective colors are designated with the letters B, C, M, Y and X. These short designations are repeated over and over the length of the print control strip I.
  • Fig. 2 the edge of the printed sheet 3 is shown, namely the face side.
  • the measuring fields 4 with the abbreviations B, C and M are provided. These can be the corresponding colors black, cyan and magenta.
  • Fig. 3 shows the reverse side of the sheet 3, on the edge of which parts of the print control strip 1 are also printed.
  • the measuring fields shown are labeled Y and X, where Y can be provided for yellow and X for a special fifth color.
  • the measuring fields applied on the front and back printing sides form a set of control strips with parts of a single print control strip.

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Spectrometry And Color Measurement (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
EP83104845A 1982-05-26 1983-05-17 Verfahren zur farbmetrischen Auswertung eines beiderseits bedruckten Bogens Expired EP0095126B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3219743A DE3219743C2 (de) 1982-05-26 1982-05-26 Verfahren zur farbmetrischen Auswertung eines auf der Schöndruck- und auf der Widerdruckseite in einem Maschinendurchgang bedruckten Bogens
DE3219743 1982-05-26

Publications (3)

Publication Number Publication Date
EP0095126A2 EP0095126A2 (de) 1983-11-30
EP0095126A3 EP0095126A3 (en) 1985-05-15
EP0095126B1 true EP0095126B1 (de) 1986-12-17

Family

ID=6164521

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83104845A Expired EP0095126B1 (de) 1982-05-26 1983-05-17 Verfahren zur farbmetrischen Auswertung eines beiderseits bedruckten Bogens

Country Status (4)

Country Link
US (1) US4637728A (enrdf_load_stackoverflow)
EP (1) EP0095126B1 (enrdf_load_stackoverflow)
JP (1) JPS58214822A (enrdf_load_stackoverflow)
DE (1) DE3219743C2 (enrdf_load_stackoverflow)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3438325A1 (de) * 1984-10-19 1986-04-24 Miller-Johannisberg Druckmaschinen Gmbh, 6200 Wiesbaden Mehrfarben-bogendruckmaschine fuer schoendruck sowie schoen- und widerdruck mit mindestens einer zwischen jeweils zwei druckwerken liegenden bogen-wendeeinrichtung
JP2657914B2 (ja) * 1986-12-08 1997-09-30 株式会社 小森コーポレーション 走査濃度計の測定位置同期方法
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
DE4338975A1 (de) * 1993-11-15 1995-05-18 Fogra Forschungsgesellschaft D Kontrollfeld sowie Verfahren und Vorrichtung zu seiner Herstellung
US6058201A (en) * 1995-05-04 2000-05-02 Web Printing Controls Co., Inc. Dynamic reflective density measuring and control system for a web printing press
US5774225A (en) 1996-03-27 1998-06-30 Advanced Vision Technology, Ltd. System and method for color measurement and control on-press during printing
US6499402B1 (en) 2000-05-17 2002-12-31 Web Printing Controls Co., Inc. System for dynamically monitoring and controlling a web printing press
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
JP2006346955A (ja) * 2005-06-15 2006-12-28 Dainippon Screen Mfg Co Ltd 印刷管理スケール、印刷システムおよび印刷方法
CN100586712C (zh) * 2006-03-06 2010-02-03 海德堡印刷机械股份公司 识别颜色测量条的方法
DE102008056170B4 (de) 2007-11-30 2022-11-10 Heidelberger Druckmaschinen Ag Farbmessgerät mit automatischer Seitenerkennung
DE102008025417A1 (de) * 2008-05-27 2009-12-03 Manroland Ag Verfahren zur Ermittlung von Parametern eines Druckprozesses
CN103465624B (zh) * 2013-09-03 2015-09-16 天津市汇源印刷有限公司 一种新型印刷油墨优化法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH538680A (de) * 1971-11-03 1973-06-30 Gretag Ag Verfahren und Vorrichtung zur maschinellen Messung der Farbdichte von auf eine laufende Bahn aufgebrachten Druckfarben, insbesondere beim Mehrfarben-Tiefdruck
US3970393A (en) * 1974-07-23 1976-07-20 Harris Corporation Automatic compensation for densitometer imbalance
US4289405A (en) * 1978-10-13 1981-09-15 Tobias Philip E Color monitoring system for use in creating colored displays
DE3024773A1 (de) * 1980-06-30 1982-01-28 Grapho-Metronic Meß- und Regeltechnik GmbH & Co, KG, 8000 München Verfahren und einrichtung zur kontrolle und zum steuern der farbgebung einer mehrfarben-druckmaschine
DE3265740D1 (en) * 1981-04-03 1985-10-03 Gretag Ag Method and device for the colorimetric analysis of a printed colour test scale
DE3219744A1 (de) * 1982-05-26 1983-12-01 Heidelberger Druckmaschinen Ag, 6900 Heidelberg Einrichtung fuer die stand- und passgerechte filmmontage von druckkontrollstreifen
JPS6128089A (ja) * 1984-07-14 1986-02-07 吉國織物株式会社 後染絣織物の製造法

Also Published As

Publication number Publication date
DE3219743A1 (de) 1983-12-01
US4637728A (en) 1987-01-20
JPH0331209B2 (enrdf_load_stackoverflow) 1991-05-02
EP0095126A3 (en) 1985-05-15
DE3219743C2 (de) 1985-01-10
JPS58214822A (ja) 1983-12-14
EP0095126A2 (de) 1983-11-30

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