| 摘要 |
A water base ink for ink-jet recording contains 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 (B1) and sodium polyoxyethylene alkyl ether sulfate (B2), and (A), (B1), and (B2) are blended at ratios respectively to fulfill a predetermined condition. Accordingly, the water base ink for ink-jet recording is provided, which is excellent in the permeability, the vaporization characteristic, and the water repellence and which does not deteriorate any resin material forming a casing or the like of an ink jet recording apparatus.
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