Siegwerk USA and Siegwerk Canada will implement a 6 to 8 percent price increase on all packaging inks and coatings effective Jan. 1, 2009. This announcement comes as a response to continued price increases from all aspects of the supply chain.      The unprecedented increases experienced this year are related to a variety of reasons including oil prices, weakening U.S. dollar, tight supply/demand issues related to raw materials and feedstocks, and rising freight and energy costs. The near futu...