| 摘要 |
An inkjet recording ink composition and an ink jet recording method is provided, which can ensure that an ink droplet can be always stably ejected in long-term inkjet recording, a high-quality image can be formed for a long period of time and, even when the recorded materials are superposed, the image-recorded materials do not adhere to each other in aging, the ink composition comprising a dispersion medium and a charged particle containing a coloring material, wherein said ink composition satisfies all of the conditions (A) to (D): (A) the electric conductivity at 20° C. of the ink composition is from 10 to 300 nS/m, (B) the electric conductivity at 20° C. of the charged particle is 50% or more of the electric conductivity of the ink composition, (C) the volume average diameter of the charged particle is from 0.2 to 5.0 mum, and (D) the viscosity at 20° C. of the ink composition is from 0.5 to 5 mPa.s.
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