Patent ID: 8034171
Filing Date: 2011-10-11
Classification: B41J,C09D

Abstract:
1. A water base ink for ink-jet recording comprising a coloring agent, water, a penetrant, and a surfactant, wherein: the penetrant includes diethylene glycol n-hexyl ether (A); the surfactant includes an acetylene glycol-based surfactant (B (A), (B condition (a): all of expressions (a1) to (a5) hold: condition (b): all of expressions (b1) to (b5) hold: condition (c): all of expressions (c1) to (c5) hold: condition (d): all of expressions (d1) to (d5) hold: wherein: x: blending amount (% by weight) of (A) with respect to a total amount of the ink; y: blending amount (% by weight) of (B z: blending amount (% by weight) of (B