PURPOSE: To obtain the titled ink which has controlled evaporation of the solvent at an exposed pen point and excellent fast-drying properties, by mixing a coloring agent, a film-forming resin, a volatile organic solvent, and a specified condensation ester compound.

CONSTITUTION: 0.5W20wt% coloring agent (A) (e.g., a basic dye) is mixed with 1W30wt% film-forming resin (B) (e.g., rosin), 40W95wt% volatile organic solvent (C) which dissolves component B (e.g., ethanol), and 0.1W10wt% condensation ester compound (D) which has a melting point of 30°C or higher and is selected from among an intermolecular condensation ester compound that has no free carboxyl groups and is made from as polyol (e.g., glycerin), a fatty acid (e.g., caproic acid), and a dicarboxylic acid (e.g., succinic acid), and a partial fatty acid ester of pentaerythritol, trimethylolethane, trimethylolpropane, a self- condensation product of a sugar-alcohol, and a self-condensation product of a polyhydric alcohol selected from polyglycerins having 7 or more repeating units.