| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an ink composition for a water-based ballpoint pen in which feel of writing is good, and abrasion at a ball seat can be suppressed in an ink composition for a water-based ballpoint pen. <P>SOLUTION: The ink composition for a water-based ballpoint pen at least including a colorant, a solvent, and an amine having an aromatic ring is used in order to make good feel of writing or abrasion suppression of a ball seat which is a problem which can not be conventionally solved in an ink composition for a water-based ballpoint pen. <P>COPYRIGHT: (C)2012,JPO&INPIT</p> |
