Ink composition, ink set, and image forming method

Abstract

The invention provides an ink composition including water, a colorant, a water-soluble organic solvent, a surfactant and a water-soluble silicate, the water-soluble silicate being comprised in an amount of from 0.0001% by mass to 0.5% by mass with respect to a total mass of the ink composition, and the water-soluble organic solvent including a water-soluble organic solvent having a value of solubility parameter (SP) of 27.5 or less in an amount of 40% by mass or more with respect to a total mass of the water-soluble organic solvent; an ink composition including a water-soluble alkali metal silicate and a pigment coated with a water-insoluble resin, the water-insoluble resin including a structural unit having an acidic group; and an ink composition including a water-soluble alkali metal silicate, self-dispersing polymer particles, and a pigment.

Dependencies are inferred from the claim text.