| abstract |
Ink jet recording ink excellent in ejection stability, image evaluation and storage stability even when carbon black having a high volatile content is used, and an ink cartridge, an image forming method, and image formation using the ink Providing things. (1) At least carbon black, a dispersant, a polyurethane resin, and water. The carbon black has a volatile content of 8.0 to 12.0%, and the acid value of the polyurethane resin is 60 to 100. An inkjet recording ink. (2) The dispersant is a sodium naphthalene sulfonate formalin condensate, and the total content of the dimer, trimer and tetramer of naphthalene sulfonic acid in the condensate is 20 to 80% by weight, The ink for inkjet recording according to (1), wherein a blending ratio of the condensate is 0.01 to 2 (weight ratio) with respect to the carbon black 1. [Selection figure] None |