| abstract |
A water-based ink composition for writing utensils which comprises: at least one nonionic surfactant selected among a polyhydric alcohol/fatty acid ester, an ethylene oxide adduct of a polyhydric alcohol/fatty acid ester, an ethylene oxide adduct of a higher alcohol or alkylphenol, an adduct of a higher alcohol with ethylene oxide and propylene oxide, an ethylene oxide adduct of caster oil or hardened castor oil, an ethylene oxide adduct of a hardened castor oil/fatty acid ester, a higher alkylamine, and an ethylene oxide adduct of a fatty acid amide; a colorant; a perfume; and water. The ink composition is less apt to run and retains a fragrance over long. In the composition, the perfume is kept being stably dispersed in the aqueous medium. |