Central Ink Corporation announced that due to the rising costs of raw materials, the company implemented a price increase on its inks, effective July 1, 2008. The price increase includes an extra $0.12 /lb on all non-heat black inks, an 8 percent increase on all non-heat colors as well as a 6 percent increase on all heatset inks.      “With crude oil prices reaching levels 40 percent higher than last year, the cost of raw materials has been escalating at a record pace. Today’s crude oil prices...