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Method for analysis of color separations

A technology of color separation and color measurement, which is applied in the field of color separation analysis and can solve problems such as inconsistency

Active Publication Date: 2015-03-11
HEIDELBERGER DRUCKMASCHINEN AG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This then leads to different deviations of the desired value in the color measuring instrument compared to the current actual color measurement value in the case of the same actual coloring in the printed original

Method used

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  • Method for analysis of color separations
  • Method for analysis of color separations
  • Method for analysis of color separations

Examples

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Embodiment Construction

[0026] figure 1 An offset printing press 7 with two printing units is shown, the controller of which is networked with the computer 4 . Also connected to the computer 4 is a color measuring device 11 which can measure the sheet-shaped printing material 3 flatly during the scanning process. For this purpose, measuring beam 1 configured as a scanner moves over the entire sheet 3 in the x-direction and detects here not only the entire printed image 8 but also laterally arranged printing control strips 9 on the sheet 3 . The sheets are laid flat on the measuring table 2 during the measuring process. In this way, both the entire printed image 8 and the laterally arranged printed control strips 9 can be detected by scanning the measuring beam 1 in one pass. The data of the printed image 8 and the printed control strip 9 detected in this way can then be transmitted to the computer 4 , where the actual measured values ​​detected in this way are compared with the corresponding desire...

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Abstract

A method for registering color deviations on printing materials produced in machines processing printing material, includes using a computer to analyze image data from a prepress stage with regard to coloring in a printed image on the printing materials. During the analysis in the computer, the image data from the prepress stage are organized into image types, the image types are allocated set points and the set points are compared with actual values registered by a color measuring instrument on the printing materials being produced.

Description

technical field [0001] The invention relates to a method for detecting coloration deviations on a printing material produced in a plant for processing printing materials, in which image data from prepress are analyzed by a computer with respect to coloration in a printed image on the printing material. Background technique [0002] For all printing processes the aim is to reproduce the printed original as faithfully as possible. It is important here, in particular, to preserve the original coloring of the printed manuscript. For this reason, the coloration of the produced printing material must be continuously monitored, for which at least the produced printing material must be removed from the printing press at regular intervals and measured with a color measuring device. If a color deviation from the printed original is detected here, a regulating intervention must be carried out in the inking unit of the printing press in order to compensate for the color deviation from ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41F33/00G01J3/46
CPCB41F33/0036H04N1/6033
Inventor K·富克森塔勒尔
Owner HEIDELBERGER DRUCKMASCHINEN AG
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