After many years of the temperature-changing inks that show consumers their beverage is properly chilled, the thermochromic inks from Chromatic Technologies Inc. (CTI) are now available for use as pull tabs found on beverage cans worldwide (see video).              Supporting the global metal decoration business, the patent-pending thermochromic tabs are available in three colors: red, green or blue. The achievement is the culmination of three years of R&D that solved very difficult chemis...