Patent ID: 8721035

Claim:
An image forming method comprising: applying a treatment liquid containing an aggregation component capable of aggregating components in an ink composition to a recording medium to form a treatment liquid application face; applying a first ink composition containing a pigment, water, and polymer particles of which a content is 1.0 mass % to 3.0 mass % with respect to the entire composition to the treatment liquid application face using an ink jet method; and applying a second ink composition including a pigment and water and having a different hue to the first ink composition onto the applied first ink composition at an ink droplet speed of 6 m/sec to 10 m/sec to form a multi-color image using an ink jet method, in which an interval from a landing time point of the first ink composition to a landing time point of the second ink composition is 200 msec or less, and a dot diameter φ2 of the second ink composition applied onto the first ink composition, and a dot diameter φ1 of the second ink composition applied onto the treatment liquid application face in an ink droplet amount equal to an ink droplet amount in the forming of the multi-color image satisfy a relationship of 0.90≦φ2/φ1≦1.10.