| 摘要 |
<p>Provided is a novel aqueous ink composition for ballpoint pens, which has the advantages of both aqueous ballpoint pens and oil-based ballpoint pens. The ink composition for aqueous ballpoint pens contains, in a manner such that the oil emulsifies in the aqueous phase, a colorless oil-based phase, which has a viscosity of 300 to 500,00mPa·s when the sheer rate is 38/sec, in relation to a colored aqueous phase containing a pigment dispersion, a water-soluble dye, or a mixture thereof.</p> |
