During my more than 25 years covering the ink industry, I have seen many changes in printing. Back in 1998, when I started at Ink World, inkjet printing was more theory than reality. By 2004, we were starting to see inkjet in direct mail and other early applications. Now, digital printing is mainstream in some markets, for example labels, ceramic tiles and billboards, and moving into other segments at varying speeds. Briefly, digital printing for packaging began as a complementary technology,...