Talking about gravure spot color inks prepative elements and experimental analysis

In recent years, the number of printing colors of gravure flexible packaging products has been increasing, and the consumption of gravure spot color plates and gravure spot color inks has shown a trend of increasing year by year, especially in the last three years. In 2004, an average of 0.4 spot-color plates were needed for every 10,000 meters of printing film produced, and in 2007 it reached 0.8 spot-color plates, with an average annual increase of 16%. However, the increase in the number of printing colors has made the printing of flexible packaging products more difficult, and the rate of defective products has also continued to increase, especially the number of defective products caused by color difference has increased rapidly. There are many reasons for color difference, and gravure spot color ink is one of them. In terms of gravure spot color ink preparation, the vast majority of domestic ink manufacturers still rely on the experience of technicians to color match, and rely on the naked eye to judge; while foreign and joint venture ink manufacturers have generally used computer color matching software, spectrodensitometer and Automatic proofing system to ensure the color consistency of gravure spot color ink.