abstract |
A recording ink composition having a colorant insoluble and dispersible in water, water, a water-soluble organic solvent, a wetting agent, 2-ethyl-1,3-hexanediol, and at least one of surfactants of formulas (I) to (V): n wherein R 1 , R 2 , R, R′, M − , m, k, n, p, and q are specified in the specification. |