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Improved print control strips for measuring colour on printed material

A technology for printing quality and control bars, applied in the direction of using color charts for color measurement, printing, printing presses, etc., can solve problems such as non-optimal color adjustment, and achieve the effect of accurate color adjustment

Active Publication Date: 2008-12-31
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the color cannot be adjusted optimally by measuring the area with a small number of gray scales

Method used

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  • Improved print control strips for measuring colour on printed material
  • Improved print control strips for measuring colour on printed material

Examples

Experimental program
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Effect test

Embodiment Construction

[0023] figure 1 The color control circuit shown in includes a color measuring device 1 , a computer 4 and ink metering devices in a printing unit 10 of a printing press 7 . Said devices 1, 4, 7 are networked with each other by means of an electronic communication link. Color measuring device 1 in figure 1 In this case, a separate color measuring device is configured as a separate color measuring device with a measuring table 2 for receiving the produced printing material 3 . Instead of the separate color measuring device 1, it is also possible to use a so-called in-line color measuring device integrated in the printing press 7, which measures the printing material in the printing press 7, preferably at the output of the last printing unit 10. 3 for testing. figure 1 The separate color measuring device 1 has a measuring beam that can move in the longitudinal direction of the substrate 3 and a color measuring head 8 that can move in the transverse direction of the substrate 3...

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PUM

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Abstract

The present invention provides a print control strip (13) to be applied to printing material (3) during a multicolor printing process, the strip has multiple measuring fields (C, M, Y, B, X, U, V, Z, CMY) associated with an ink zone on a printing material. The invention is characterized in that the measuring fields associated with an ink zone comprise at least two gray measuring fields (CMY). In addition, the invention relates to a method of measuring fields (C, M, Y, B, X, U, V, Z, CMY) in print control strips on printing material with a measuring device (1) and a computer (4) connected thereto, and a method of controlling metering of ink in offset printing presses (7) including at least one ink metering device in each printing unit and a control computer (4).

Description

technical field [0001] The invention relates to a print quality control strip for application to a printing substrate during a multicolor printing process, the print quality control strip having a plurality of measuring fields assigned to an ink zone on the printing substrate, the present invention The invention also relates to a method for measuring a print quality control strip and a method for controlling ink metering in an offset printing press by means of color measurement on the print quality control strip. Background technique [0002] The quality of the printing process is measured in terms of how closely the manufactured print corresponds to the original. An important quality feature here is that the printing material and the original are as precisely as possible in color. The quality of the printed product produced can be checked on the one hand by the printer's identification, wherein this identification is subjective and depends on the person. Instead, for obje...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41F33/00
CPCB41F33/0036B41F33/0045B41P2233/51G01J3/52
Inventor S·比尔迈尔B·文策尔
Owner HEIDELBERGER DRUCKMASCHINEN AG
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