There is a lot of interest in sustainability and regulatory matters among ink manufacturers and their suppliers. Increased mandates from brand owners and government bodies have been part of it, but more importantly, it seems that there is also a sense of responsibility for the environment and health and well-being of people throughout the world. The regulatory landscape continues to change. Recently, the European Union has put out a ruling classifying titanium dioxide (TiO2) as a category 2 sus...