Sonoco announced it will raise the price for all paperboard tubes and cores by 6% to 10%., effective with shipments in the US and Canada, beginning Oct. 24, 2016.   “This price increase, our first in more than a year, is necessary due to the recent increase in costs for uncoated recycled paperboard, our primary raw material, combined with price escalations in energy, labor and other input costs,” said James Harrell, VP for Sonoco’s North America Tubes and Cores Division.  ...