Oct 28, 2009. /Lesprom Network/. Iggesund Paperboard has announced a price increase for its folding boxboard range, Incada, in continental Europe. Prices for Incada Exel and Incada Silk will be raised by Euro 70 per ton for all deliveries as from January 1, 2010. The change will also affect all plastic coated and laminated Incada products. Iggesund Paperboard is a member of the Holmen Group and Europe´s leading manufacturer of high quality virgin fibre paperboard for use in the packaging and graphics sectors.