| abstract |
PROBLEM TO BE SOLVED: To provide an ink jet ink excellent in ink ejection stability, image dripping water resistance and feathering resistance in an ink jet recording apparatus. An ink-jet ink containing a pigment and a polyurethane resin comprising: The polyurethane resin has units derived from a polyol having 13 to 250 carbon atoms having no acid group, a diol having 1 to 7 carbon atoms having an acid group, a polyol having a siloxane structure, and a polyisocyanate. And the ink value is 40.0 mgKOH / g or more and 80.0 mgKOH / g or less, The inkjet ink characterized by the above-mentioned. [Selection figure] None |