Nowadays, people pay more attention to green printing and environmental protection printing ink, which has become the mainstream in the field of printing, and the recent voice is higher nowadays. Edible ink-jet ink is water-based and environmental friendly and all of its raw materials reach the food sanitation standards. It can be directly printed on the surface of food, medicine and packaging in the non-contact ink-jet printing way. The ink samples were prepared by adding different amount of dye, resin and surface active agent. The viscosity and surface tension of the samples were tested, and the influence of the ink with different performance on the quality of presswork was discussed. The products printed by this ink are innocuous, pollution free and bright in colour. Line quality, field filling quality and dot quality of printing are evaluated and analyzed through a CCD camera-based industrial image analysis system. The result shows that the viscosity and surface tension of edible ink-jet ink have an effect on the quality of printing. Edible ink-jet ink, which is suitable for printing, will be available by changing the amount of resin and surface active agent.
Jing-mei Sun, Xian-fu Wei, Bei-qing Huang, "Research on the Performance of Edible Ink-jet Ink" in Proc. IS&T Int'l Conf. on Digital Printing Technologies and Digital Fabrication (NIP27), 2011, pp 315 - 318, https://doi.org/10.2352/ISSN.2169-4451.2011.27.1.art00080_1