Patent ID: 8602519

Claim:
An ink jet recording method using an ink jet recording apparatus including a plurality of heads arranged in parallel in a first direction, each of which ejects droplets of a different radiation-curable ink composition onto a recording medium, and first light sources provided for corresponding heads so as to be disposed at a predetermined side of the corresponding heads and which emit active radiation to irradiate the droplets on the recording medium, the method comprising: ejecting droplets of the ink compositions from the heads onto the recording medium; performing a first irradiation by irradiating the droplets of each ink composition with the active radiation from the corresponding first light source at an irradiation energy within 500 ms after the droplets have landed on the recording medium, the irradiation energy being in the range of 5% to 10% of the energy E 90 at which the ink composition is 90% cured; and performing a second irradiation to irradiate the droplets with active radiation after 500 ms has elapsed from the landing of the droplets, wherein the first light sources each include an LED, the each ink composition contains a photopolymerization initiator of 5% to 15% by mass, and the photopolymerization initiator contains an acylphosphine oxide-based photopolymerization initiator.