Color management software generally includes printer ICC files and printed ICC files. The ICC file standards of printers used by different color management software are different, so the printer ICC files cannot be common among the software.
The printed ICC file is obtained by measuring the printed color table with a spectrophotometer (different spectrophotometers use different color tables), and all color management software can use the same printed ICC file. However, different printing houses use different PS versions, different papers, different inks, different printing machines, different printing conditions, etc., resulting in certain differences in the printed ICC file information. Therefore, in China, printed ICC files will vary It varies from printing house to printing house.
6 reasons for inconsistent actual production colors
After establishing the conversion relationship between the ICC Profile and the printing ICC Profile through the digital proofing color management software, from the design idea of ​​the color management software, the matching of the proofing result and the printing result is achieved, that is, the proofing color is the same as the printing color Consistent. But in the actual production process, it can not fully meet the requirements of all colors consistent. The reasons are as follows:
1. The color blocks for ICC Profile test can only divide the color space into a limited amount, and the intermediate transition colors can only be simulated by software operations, and the color management software can only control the color of the device through limited points. , So there is no absolute guarantee that there will be no color difference.
2. The spectral characteristics of the proofing ink are not consistent with the spectral characteristics of the printing ink, and the spectrophotometer only reads the chromaticity value under a standard light source, and this value cannot be guaranteed to be consistent under any light source.
3. The stability and uniformity of the inked printing samples provided for reference have certain differences, and the samples will have some color drift.
4. The stability of the proofing system itself and the error and environment of the measuring instrument will affect the consistency of the color.
5. The color of the same sample under different lighting environment, observation angle, background color and other conditions is also inconsistent.
6. The observer's subjective perception will cause inconsistencies in color perception.
Now, the color management software and the special ICC production software package can basically solve the above problems through different ways (such as curve adjustment and individual color adjustment), reduce color errors, and meet the different needs of actual production.
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