| abstract |
PROBLEM TO BE SOLVED: To provide a rosin-based emulsion composition capable of realizing the sizing properties required for newsprint during lithographic printing required for newsprint paper, even in rapid drying of high-speed papermaking, with a relatively small addition rate. A sizing agent comprising: A rosin-based material and a glass transition temperature of 0 ° C. A rosin-based emulsion composition for newsprint containing a dispersant containing a copolymer having a (meth) acrylic acid ester-based monomer, which is a monomer capable of constituting a homopolymer, as follows: Newspaper production method and newspaper used. |