SE9800327L - Method for measuring color printing in four-color presses - Google Patents

Method for measuring color printing in four-color presses

Info

Publication number
SE9800327L
SE9800327L SE9800327A SE9800327A SE9800327L SE 9800327 L SE9800327 L SE 9800327L SE 9800327 A SE9800327 A SE 9800327A SE 9800327 A SE9800327 A SE 9800327A SE 9800327 L SE9800327 L SE 9800327L
Authority
SE
Sweden
Prior art keywords
color
presses
measuring
grey
cmy
Prior art date
Application number
SE9800327A
Other languages
Swedish (sv)
Other versions
SE9800327D0 (en
SE523171C2 (en
Inventor
Paer Kierkegaard
Original Assignee
Epact Technology Ab
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 Epact Technology Ab filed Critical Epact Technology Ab
Priority to SE9800327A priority Critical patent/SE523171C2/en
Publication of SE9800327D0 publication Critical patent/SE9800327D0/en
Publication of SE9800327L publication Critical patent/SE9800327L/en
Publication of SE523171C2 publication Critical patent/SE523171C2/en

Links

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
    • B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Quality & Reliability (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

Grey reference surfaces are used, one being that obtained using cyan, magenta and yellow (CMY) inks, and the other comprising only the black ink and white paper substrate. The grey surfaces are illuminated and a colour-sensitive sensor analyses the reflected light, and the composition of CMY ink components is altered until the colours of the two reference surfaces match.
SE9800327A 1998-02-05 1998-02-05 Colour measurement system used in multicolour printing presses for e.g. newspapers SE523171C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9800327A SE523171C2 (en) 1998-02-05 1998-02-05 Colour measurement system used in multicolour printing presses for e.g. newspapers

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9800327A SE523171C2 (en) 1998-02-05 1998-02-05 Colour measurement system used in multicolour printing presses for e.g. newspapers

Publications (3)

Publication Number Publication Date
SE9800327D0 SE9800327D0 (en) 1998-02-05
SE9800327L true SE9800327L (en) 1999-08-06
SE523171C2 SE523171C2 (en) 2004-03-30

Family

ID=20410086

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800327A SE523171C2 (en) 1998-02-05 1998-02-05 Colour measurement system used in multicolour printing presses for e.g. newspapers

Country Status (1)

Country Link
SE (1) SE523171C2 (en)

Also Published As

Publication number Publication date
SE9800327D0 (en) 1998-02-05
SE523171C2 (en) 2004-03-30

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