HIGH-STRENGTH FLUTING FROM NSSC PULP

摘要

There is provided a method of producing a containerboard, comprising the step of pressing a web formed from a pulp comprising NSSC pulp in an extended nip press, such as a shoe press, wherein the line load in the extended nip press is above 1200 kN/m. Further, there is provided a corrugated board comprising a liner and a fluting, wherein the fluting is formed from a pulp comprising NSSC pulp, the density of the fluting is above 725 kg/m3 and the geometric SCT index (ISO 9895) of the fluting is above 37 Nm/g.