Tracey Norton from IGM Resins explains the background to radiation curing materials for inkjet inks and how recent advances are aiding implementation in LED curing and food packaging applications.
Food safety and inkjet inks
Packaging has traditionally been printed to provide information about the product, such as branding, sell-by date, ingredients and nutritional content. The packaging acts as a functional barrier between the ink and the food, although care must be taken to ensure that ink components do not migrate across the barrier and contaminate the food through indirect contact.