| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To obtain an ink composition for writing utensil, having stability even under severe high-temperature conditions. <P>SOLUTION: The oily ink composition for writing utensil is obtained by adding a bis-urea compound to an ink composition for writing utensil comprising at least a colorant, an additive, and a solvent. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
