| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an ink composition for an oil ballpoint pen, which can attain satisfactory writing feeling and suppression of the abrasion of a ball seat, which have been conventionally unsolved problems in an ink composition for an oil ballpoint pen. <P>SOLUTION: The ink composition for oil ballpoint pen includes at least a colorant, an organic solvent, and a surfactant having an IOB value of 0.01-1.0. <P>COPYRIGHT: (C)2013,JPO&INPIT |
