Chromatic Technologies Inc. (CTI) expanded its photochromic (light-sensitive) ink capability throughout Mexico with a Cheetos-exclusive promotion, called “Where is Chester?” The brand hid the “spokescheetah” from its bags – instead displaying a magnifying glass and a white circle – and made him visible only by exposing the package to sunlight. CTI custom-developed the orange and charcoal photochromic inks, qualified them with the converter (American Poly del Norte i...