Patent ID: 8257482

Claim:
A water base ink for ink-jet recording comprising: a self-dispersible pigment; water; at least one glycol ether selected from the group consisting of diethylene glycol butyl ether, dipropylene glycol propyl ether and triethylene glycol butyl ether; and methyl cellulose in an amount of 0.01% by weight to 0.5% by weight; wherein the methyl cellulose has a methoxy substitution degree of 25% to 35%; a solution obtained by dissolving 20 g of the methyl cellulose in the water at 20° C. having a total volume of 1 liter, has a viscosity of 20 cP to 30 cP; and the glycol ether is contained in an amount of 0.5% by weight to 3% by weight.