PAPERMAKING PROCESS

摘要

A papermaking process comprising the steps of: adding, to pulp for papermaking in the step of transforming pulp into paper in papermaking, an ionic water-soluble polymer prepared by a method wherein polymerization is conducted in an aqueous salt solution capable of dissolving monomers and incapable of dissolving the resultant polymer in the presence of a dispersant comprising a polyelectrolyte soluble in this aqueous salt solution while stirring to prepare a dispersion of fine polymer particles; and adding an anionic additive selected among anionic colloidal silica, anionic (co)polymers, bentonite, and mixtures thereof, thereby improving the yield and/or drainage rate. This process can markedly improve the yield of raw material/filler and the drainage rate, realizing a high quality and a high productivity.