Sun Chemical named Greg Lawson  president of its US Ink unit, succeeding Ron Baker, who passed  away earlier this month. Mr. Lawson joined US Ink in 2002 as  executive vice president before he was named president of  Sun’s Latin America operations. Mr. Lawson also worked with Openshaw  International, a British graphic arts supply company. Prior to Sun Chemical, Mr. Lawson worked at  Flint Ink (now Flint Group), where he was president of Flint’s  North American business....