| abstract |
The invention provides an ink jet recording liquid of high optical density, good rub resistance, and excellent feathering and long-term preservation stability when the liquid is used for printing on plain paper as well as an ink jet recording method in which the ink jet recording liquid is used. In the ink jet recording liquid which contains pigment, water soluble organic solvent, and water as the essential components, and additionally containing water soluble resin and/or surfactant, 1) the temporal change rate of dynamic contact angle on plain paper is in a range from 0.5 to 3.5 degrees/second, 2) the number average particle diameter in the ink jet recording liquid is in a range from 15 to 100 nm, and 3) the volume average particle diameter in the ink jet recording liquid is in a range from 30 to 200 nm. The above-mentioned ink jet recording liquid is printed by means of ink jet recording. |