Measurement characterization data Measure each selected sample with a spectrophotometer, and then use the average data to create a printer ICC file. If possible, save the original data in spectral form from time to time CIELab (D50). Under the standard light source, use appropriate software to measure the data, and then use the standard characterization data to generate an improved ICC file, which can reduce the changes caused by the influence of non-standard light sources or different standard light sources. Reasonable expectations The process of characterizing equipment is more important than any standard printing process. The proofs printed with the characteristic data should be as perfect as possible during the measurement. In all image parts, including solid color, gray balance, NPDC and overprint, these characteristic values ​​should be expressed as much as possible in The entire proof should be at least achievable from the characteristic chart area. Offset presses are more difficult to control than traditional proofers in terms of consistency and uniformity. Even if the right-most experienced printing master operates the best offset printing machine, in the most ideal state, each operation process will change, because the material, temperature, humidity, and operation length will affect each operation. There is little chance of achieving "perfect" printed sheets on any offset press. If gray balance and other tolerances cannot be accurately controlled during the calibration test, it needs to be as best as possible, but the final result may not reproduce the normal performance of the device to be characterized. In this case, you can use standard characterization data for this type of printing, such as GRACOL7 characterization data, or repeat the characterization process multiple times within a certain period or within a few weeks to find the average result. Wallet,Suitable for Short Trips,Large Capacity Travel Bag,Dirt-resistant and Easy to Scrub TAIZHOU ORCHIDLAND IMPORT&EXPORT CO.,LTD , https://www.orchidlandbag.com