Patent ID: 8703841

Claim:
An ink composition comprising a colorant, water and wax particles, the wax particles comprising at least two kinds of wax including a first wax and a second wax, wherein: the difference between the specific gravity of the first wax and the specific gravity of the second wax is from 0.05 to 0.15; the mass ratio of the first wax to the second wax is from 1:4 to 4:1; the first wax has a specific gravity of 0.95 or less and the second wax has a specific gravity of not less than 0.95; and the first wax comprises at least one selected from the group consisting of a paraffin wax and a polyethylene wax, and the second wax comprises at least one selected from the group consisting of carnauba wax and a stearic acid amide wax.