Jim Felsberg, field marketing manager for Sun Chemical Corporation, has had a first-hand look at the growth of the packaging industry.     “The major highlights of my career center around the diversity of roles that I have enjoyed at Sun Chemical,” Felsberg said. “I have been proud to be part of the technical team and the growth of the packaging business at Sun Chemical. The technical growth and maturation of the packaging business and moving to the business support role have been very rewardi...