Research of Wax Additives in the Water-Based Ink for Flexographic Printing

Effect of three types of wax additives in the water-based ink is discussed, which are wax emulsion, micro-wax dispersions and wax dispersions. Softening point and particle size of wax are mainly studied on the ink’s performances, such as gloss, friction resistance and rub resistance. The result shows that ink added WE3 which is micro-wax dispersions has good performance, and has best performance on the BOPP film while added 3 wt%.