Water-Based Ink for Ink-Jet Recording, Ink Cartridge, Ink-Jet Recording Apparatus, and Ink-Jet Recording Method

摘要

There is provided a water-based ink for ink-jet recording, including: a self-dispersible pigment modified by sulfonic acid group; glycerol; diethylene glycol; a penetrant; and water, wherein the glycerol and the diethylene glycol satisfy the following condition (i): 0.01≰DEG/(Gly+DEG)≰0.11  (i) in the condition (i), Gly represents an amount of the glycerol in the water-based ink (% by weight); and DEG represents an amount of the diethylene glycol in the water-based ink (% by weight).