Faced with increases in the costs of raw materials and the impact of recent events in the global supply chain, Sun Chemical raised prices in North America by 4 percent for packaging liquid inks with a specific increase of $0.40/lb on bronze metallic inks, 6 percent for energy curable inks, and $0.75/lb for commercial sheetfed blended colors, effective April 1, 2010.      For more than 18 months, raw materials and energy cost volatility have significantly impacted the ink industry. Non-traditio...