| 摘要 |
<p>PURPOSE: Provided is oil-based ink for a writing tool, which has a good leveling property and a good writing property, can prevent the sedimentation of a coloring agent, and dose not need redispersion and restirring. CONSTITUTION: The oil-based ink(22) comprises the coloring agent, a resin, an organic solvent, and a gelling agent, wherein the gelling agent is a soluble one having a solubility of 0.1-20wt% in the organic solvent at a temperature of 20deg.C. And the viscosity of the ink is more than 900mPa.s at a shear rate of 0.1(1/s) and 250mPa.s at a shear rate of 100(1/s).</p> |
