Influences of Oligomers and Monomers on the Performance of UV Curing Flexo Ink

In order to obtain UV flexo ink with good performance,on the premise of the unchanged pigment content,primary UV flexo magenta ink samples are prepared with different oligomers and pigment/binder ratios.By changing the kind of oligomer and monomer,primary inks are diluted for inspecting the impact of oligomer and monomer on the performance of UV flexo ink.The results show that the oligomer and the pigment/binder ratio have a significant effect on the wetting and dispersion of pigment;structure and functionality of oligomer and monomer affect the ink viscosity,curing speed and print quality;ink with good overall performance and print quality can be made by using composite oligomers and monomers.