| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an aqueous ink composition for a ball-point pen, the composition preventing leakage of ink even when a ball-point pen is left upside down and giving a light writing touch and a good feeling on writing. <P>SOLUTION: The aqueous ink composition for a ball-point pen comprises at least water, a colorant, xanthan gum and psyllium seed gum. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |
