| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a manufacturing method for printing paper having excellent yield while suppressing thickening of a slurry when recycled particles are used as a filler, and printing paper obtained by the manufacturing method. <P>SOLUTION: A manufacturing method for printing paper comprises a step of aggregating recycled particles in which recycled particles mainly containing papermaking sludge are aggregated by a coagulant to provide an aggregated recycled particle-containing slurry, an addition step of adding the aggregated recycled particle-containing slurry to a pulp slurry and a papermaking step of making paper by using the pulp slurry with the aggregated recycled particle-containing slurry added. The coagulant includes a copolymer of a (meta)acrylate-based cationic monomer and a nonionic monomer, and the aggregated recycled particles have a volume average particle diameter of 3.5 μm or more and 15 μm or less. <P>COPYRIGHT: (C)2012,JPO&INPIT |
