Patent ID: 8740369
Filing Date: 2014-06-03
Classification: B41J,C09B,C09D

Abstract:
1. An ink composition comprising water, a water-dispersible pigment, a water-soluble organic solvent, a surfactant and a water-soluble silicate, an amount of the water-soluble silicate being 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 comprising a water-soluble organic solvent having a value of solubility parameter (SP) of 27.5 or less in an amount of 70% by mass or more with respect to a total mass of the water-soluble organic solvent, wherein the water-soluble silicate is represented by the following Formula (A): wherein, in Formula (A), A represents sodium, potassium or tetraalkyl ammonium (NR