| 摘要 |
<p>PROBLEM TO BE SOLVED: To obtain an erasable ink composition containing a coloring component nonseparably and stably dispersed in a binder resin component, and excellent in erasability and preservability. SOLUTION: This erasable ink composition comprises an emulsion liquid containing a polymer having a glass transition temperature of >=40 deg.C and produced by polymerizing a polymerzable monomer consisting mainly of at least one kind of monomer selected from the group consisting of aromatic vinyl compounds and alkyl methacrylates in the presence of a dyestuff and a surfactant, and an aqueous solution containing a resin having a glass transition temperature or <=0 deg.C or a lowest film-forming temperature of <=0 deg.C.</p> |
