Kao Collins has several years of experience formulating low migration inks for specific inkjet applications, some of which are based off of our patented ink technologies. The low migration approval process is something that tends to take some time. It requires open collaboration between all parties involved in the printing process. Most of the time, low migration inks require the user of the printer and inks (the producer of the end product) to be the party who acquires the migration data and approval. Kao Collins has received independent lab approval for direct and indirect food packaging on label stocks, utilizing Swiss Ordinance and Nestle Guidelines.
LM UV Curable Inks are carefully formulated without the use of raw materials flagged as potential migrants (typically with low molecular weight). UV curable fluids cross-link rapidly, which limits the time that the substrate is in contact with uncured ink and stops the fluids from further penetrating the surface.
LM LED Curable Inks are formulated similarly to UV curable inks, but with carefully selected raw materials to provide optimized LED curing.
New LM EB Inks are formulated similarly to UV and LED cure inks, but without the use of photo initiators. Rather, electron beam irradiation cures the ink completely, creating an odorless, high quality image.
LM Water–based Inks are considered “safe” fluids because they are comprised mostly of water and colorant. Recent advances in available raw materials have enabled water-based inks to do more today than they could just three years ago, but the substrate limitations still exist when compared to the energy curable inks.