A Study on Color Variance of IMR between PET Coated and Uncoated White Ink by UV Inkjet

Abstract

IMR can print out excellent textures and effects on irregular surfaces. Many products decorated by IMR are protected from water and fading, and these kinds of decorations strongly increase beauty, desirability and value of the objects. Therefore, this research is to investigate the potential use of combining IMR with UV inkjet printing and to compare color variance of IMR between PET coated and uncoated white ink. Study results show that the SIDs of PET with white ink is higher about 0.15 to 0.2 than the PET without white ink. The SIDs of PET without white ink will decrease and the SIDs of the PET with white ink will increase when transferred. The PC of PET without white ink is about 10 to 15 higher than the PET with white ink. After transferred, the Color Gamut became smaller than before. Especially for the PET without white ink, its color differences △E can reach 40. In addition, the color gamut became smaller when transferred.