Patent ID: 7094813

Claim:
An ink-jet recording ink, comprising: a polymer emulsion which comprises a polymer fine particle containing a coloring material, the coloring material being insoluble in water or being unlikely to dissolve in the water; at least one wetting agent, as a first hydroxy compound, selected from the group consisting of glycerin, 1,3-butanediol, triethylene glycol, 1,6-hexanediol, propylene glycol, 1,5-pentanediol, diethylene glycol, dipropylene glycol, trimethylol propane, and trimethylol ethane; one of selected from the group consisting of: a polyol, as a second hydroxy compound, having 8 to 11 carbon atoms, and a glycol ether having 8 to 11 carbon atoms; a water-soluble organic solvent; water; at least one of an anionic surfactant, a nonionic surfactant, and an amphoteric surfactant; and at least one fluorine surfactant, wherein the fluorine surfactant is the perfluroalkyl sulfonate expressed by the following formula A: wherein R 1 , R 2 , and denote one of a perfluoro alkyl group and a fluorine atom, and M1 denotes any one of Li, Na, and K, and wherein the coloring material is a pigment and wherein the ink-jet recording ink has a viscosity of 5 mPa.sec or more at 25° C.