Patent ID: 7404876

Claim:
A high-bulk, wood-containing calendered printing paper having a density of 0.35 to 0.50 g/cm 3 , comprising: a base paper comprising at least a bulk-increasing agent and one or more of hardwood mechanical pulp selected from refiner groundwood pulp, thermomechanical pulp, chemi-thermomechanical pulp, alkali peroxide mechanical pulp, or alkali peroxide thermomechanical pulp, wherein the hardwood mechanical pulp is included in an amount of 10% to 60% by weight of the pulp contained in the base paper, wherein the bulk-increasing agent is contained in an amount of 0.1% to 1.2% as solid by weight of the total bone-dry weight of pulp contained in the base paper; and a starch-based surface-paper-strengthening agent coated on a surface of the base paper in an amount of 0.3 g/m 2 to 3.0 g/m2.