About the water bag color printing quality control

Good quality control is the foundation of economic production color printing, color separation of folding water bag, proofing and error in the link of plate making, improper selection of paper or ink color proofing, and error in the link of plate making, improper selection of paper and ink or prepare before printing, printing process, any problems will affect the color of the print. In offset printing factory, is the oldest printing method, after making separation film plate, the plate installed on the printer, start printing machine printing, transfer printing out the check printing quality, the large capacity water bag adjusted to printing quality. Because the offset printing process is easy to cause a color wave, so need to constantly in the process of printing a lot of process adjustment, the processing technology was obviously very time-consuming and expensive. Began to correct obvious color again after printing, moving out below the quality requirements of unqualified to transfer, the traditional printing quality control concept is no longer accepted by people. If you want to make the color printing, you have to apply total quality management approach, is to ask everything is done correctly from the beginning, makes the final printing color change can control within the established standard specification. Printing machine proofing obviously more expensive than prepress proofing, but in the gravure printing and flexible printing to practice extensively, namely to plate or plate cylinder is installed directly to finish printing proofing proofing machine. Independent wine compound bag because proofing printing and production of substrates and ink is different, even if the printer proof cannot be completely forecast and production of the quality of the image is very much, so printing proofing need to make some adjustments. New proofing technology is improving quality and also reduce the cost, but as between printing image will still have the color change, people could not acquire proofing color matching between sample and production of printed sheet completely. The improvement of technical level and the improvement of management level of color technology, it's color printing faster and better to complete, cost reduced, this is driven in color printing packaging printing and publishing printing has been the main reason for the growth. Color of the original electronic treatment decreased from original to satisfied with print the required time and cost, modern electronic technology also reduces the print color.