How To Wash Ink And Change Color In the process of offset printing, especially the monochrome Offset Press, whether y, m, C and BK four-color printing, trademark and packaging decoration, it is often necessary to wash the ink and change the color,. clean the ink transmission system of the whole offset press, and then replace it with new ink. The ink scraper of the ink washing device is composed of a rubber knife, an ink receiving groove and an adjusting screw.How To Wash Ink And Change Color Ink washing process: pour gasoline and car washing water on the ink roller, install the ink scraper in the ink washing position slot, tighten the adjusting screw to make the rubber knife contact the surface of the inking roller corresponding to the offset press at an angle of 40 °, and the inking roller moves longitudinally and laterally to scrape the old ink and gasoline on the ink conveying system into the ink receiving slot through the rubber knife.How To […]