Patent ID: 7281789

Claim:
A water base ink set for ink-jet recording comprising: a pigment ink which contains water, a water-soluble organic solvent, and a pigment and which includes at least one of lithium ion, potassium ion, and sodium ion, wherein a total ion concentration Cp 1 of the ions satisfies 60 ppm≦Cp 1 , and a total ion concentration Cp 2 of divalent or multivalent metal ion or ions satisfies Cp 2 ≦10 ppm; and a dye ink which contains water, a water-soluble organic solvent, and a dye and which includes at least one of lithium ion, potassium ion, and sodium ion, wherein a total ion concentration Cd 1 of the ions included in the dye ink satisfies 300 ppm<Cd 1 ≦1,800 ppm, and a total ion concentration Cd 2 of divalent or multivalent metal ion or ions included in the dye ink satisfies Cd 2 ≦10 ppm, wherein: Cd 1 ≦25 Cp 1 is satisfied.