For resin manufacturers, 2011 was full of challenges, as volatility in the cost and supply of key raw materials, combined with weakened demand, made for a difficult year. However, resin industry executives say that sales of resins have been on the upswing in 2012, and are optimistic about the market. “Resins used in packaging inks and overprint varnishes were steady in 2011, although there was noticeable softening toward the end of last year as consumer confidence waned and everyone in the va...