METHOD FOR PRETREATING FILLER AND PAPER CONTAINING THE FILLER PRETREATED

摘要

PROBLEM TO BE SOLVED: To provide paper having a high filler retention and excellent paper strength. SOLUTION: The paper having a high filler retention and excellent paper strength can be obtained by making paper from a paper material containing a filler pretreated by being mixed with cellulose nanofibers. Preferably, the cellulose nanofibers have a B type viscosity (at 60 rpm and 20°C) of 500 to 7,000 mPa-s in an aqueous dispersion of 2% (w/v) concentration. COPYRIGHT: (C)2011,JPO&INPIT