| 摘要 |
<p>A papermaking emulsion size comprising a rosin substance, a dispersant, and water, characterized in that the rosin substance comprises (i) a rosin compound or a fortified rosin and (ii) a rosin ester or fortified rosin ester and the dispersant comprises a (meth)acrylamide copolymer comprising (A) 70 to 95 % by mole of (meth)acrylamide, (B) 0.5 to 10 % by mole of a sulfo (salt) group-containing monomer or a phosphoric acid (salt) group-containing monomer, and (C) 1 to 20 % by mole of a hydrophobic monomer. A paper sizing method using the same is also disclosed.</p> |
