Dimer acid-based polyamides are resins of choice for flexographic inks printed on non-porous substrates, especially packaging films and foils. But can they work in inks designed for wide-format printers? To answer this question, we determined the behavior of carefully chosen polyamide resins in non-conventional solvents and solvent blends and tested the most promising resins and blends in basic ink formulations, obtaining data on their viscosity, stability, jetting behavior, drying rate, rub-resistance, and adhesion.
Mark S. Pavlin, James Fox, Jagvi Patel, Catherine Lawler, "Can A Polyamide Resin Be Formulated Into A High-Performance Digital Printing Ink?" in Proc. IS&T Int'l Conf. on Digital Printing Technologies (NIP19), 2003, pp 232 - 236, https://doi.org/10.2352/ISSN.2169-4451.2003.19.1.art00056_1