| abstract |
The first object of the present invention is to provide a technique for agglomerating a filler, and secondly, to maintain the opacity of a paper at a high level and to improve the paper strength by filling the filler. An object of the present invention is to provide a method for producing a filler-filled paper having a small decrease in rigidity. SOLUTION: An acrylic latex is added to a filler suspension to form aggregated particles in advance. By adding these agglomerated particles to the pulp suspension and making paper, it is possible to produce a filler-filled paper with little decrease in paper strength and rigidity due to filler filling, while maintaining the opacity of the paper at a high level. |