| abstract |
PROBLEM TO BE SOLVED: To provide an ink jet recording ink capable of printing with little bleeding on plain paper, especially recycled paper. SOLUTION: An ink jet recording ink containing a coloring material, a water-soluble organic solvent and water contains a substance having a structure represented by the following formula (I) and a substance having a structure represented by the following formula (II). Aqueous ink for inkjet recording. Embedded image R 1 , R 2 , R 3 and R 4 are each independently a methyl group, an ethyl group, a propyl group or a butyl group, A and B are each independently an ethylene oxide group, a propylene oxide group, or an ethylene oxide group and a propylene oxide Group. j + k (average value) ≦ 50. Embedded image R 5 is an alkyl group or a cycloalkyl group having 4 to 20 carbon atoms, PO is a propyleneoxy group, EO is an ethyleneoxy group, n and m are repeating units in the molecule, and 0.5 ≦ n ≦ 5, 3 ≦ m ≦ 30, and the order of EO and PO does not matter. |