| abstract |
(57) [Problem] To provide an ink jet recording ink capable of printing with little bleeding even on recycled paper. SOLUTION: An ink jet recording ink containing at least a water-soluble coloring material and water contains 2,4,7,9-tetramethyl-5-decyne-4,7-diol and / or 3,6-dimethyl-4. -Octin 3,6-diol and a water-soluble surfactant, wherein the 2,4,7,9-tetramethyl-5-decyne-4,7-diol and / or 3,6-dimethyl-4-octyne 3 , 6-diol and a water-soluble surfactant in a ratio of 0.5 to 2. |