Practically everywhere consumers turn to, there is color to catch the eye. Color is an important selling point, especially at the point of purchase, as a look down grocery aisles can attest. Inks provide the colors that we see in packaging and publications, and pigments are the key ingredient. Pigments are also a sizable business: industry executives estimate the U.S. pigment market at $800 million in annual sales. “The use of color has outpaced GNP over the p...