Effect of Monomer on UV- LED Inkjet Ink Performance

Objective To investigate the impact of monomer on UV- LED inkjet ink performance and improve ink performance. Methods Different monomers were used to prepare ink samples,and the dispersivity,viscosity,surface tension,curing rate,flexibility and adhesion of ink were tested. In the end,the optimal ratio of co- monomers was achieved by formulation experiment to obtain the best overall performance. Results The ink paste showed the optimal dispersivity when the mass ratio of co- monomers was mNPGDA∶ mTMPTA= 0. 54∶ 0. 46,and the ink showed the optimal overall performance when the mass ratio of co- monomers was mTPGDA∶ mTMPTA= 0. 61∶ 0. 39. Conclusion Monomer had a significant influence on the dispersion and curing rate of UV- LED inkjet ink,and also had a great impact on ink film- forming properties after UV- LED curing.