For most people, getting together for the holidays encompasses a friendly gathering full of light conversation. For Susanna Ross and Christina Short, who had become friends while working at Ciba Specialty Chemicals, Thanksgiving was a much more momentous occasion. While enjoying wine that day, Ms. Ross, her husband Ron Ryavec, Ms. Short and her husband Steve Szewczyk talked about the possibility of entering into the ink business. Their goal was not just to go into business, but to formulate an ...