Patent ID: 7169221
Filing Date: 2007-01-30
Classification: C09D

Abstract:
1. A water base ink for ink-jet recording comprising: C.I. Direct Yellow 132 in an amount of 0.1% by weight to 4.0% by weight; glycol ether having a melting point of not more than −45° C. in an amount of not less than 0.5% by weight; and a water-soluble organic solvent in which a solubility of the C.J. Direct Yellow 132 at 20° C. is not less than 5%, wherein the ink satisfies the following formulae: in which B/A represents a weight ratio of the glycol ether to the C.I. Direct Yellow 132 contained in the ink, and C/A represents a weight ratio of the water-soluble organic solvent to the C.I. Direct Yellow 132 contained in the ink, and wherein the ink further comprises a surfactant represented by the following formula: in which x is 12 or 13.