Patent ID: 7641723

Claim:
An ink jet recording ink comprising at least water, a colorant, a compound represented by the following general formula (I) accounting for 8 to 40% by mass of a total mass of the ink, and a water-soluble substance accounting for 5 to 30% by mass of the total mass of the ink, wherein the water-soluble substance is at least one compound selected from the group consisting of a compound represented by the following general formula (II), polyalkylene glycol having a molecular weight of 200 to 1,000, polyglycerin, and bishydroxyethyl sulfone, and a ratio (A/B) of mass (A) of the compound represented by general formula (I) and mass (B) of the water-soluble substance is in a range of 1/3 to 7/1, General formula (I) wherein R 1 , R 2 , and R 3 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms, and R 4 represents an alkylene group having 1 to 5 carbon atoms, and R 5 R 6 NCONHCH 2 CH 2 OH General formula (II) wherein R 5 and R 6 each independently represent a hydrogen atom or C n H 2n OH, n is 2 or 3, and R 5 and R 6 are not a hydrogen atom at the same time.