| abstract |
An ink set includes at least two color inks having different colors, in which each color ink includes colorants, surfactants, organic solvents, and water, and a difference between dynamic surface tensions of the at least two color inks is 20 dyne/cm or less at 10 ms and 1000 ms. An ink jet printer cartridge can include the ink set, and an ink jet printing apparatus can include the ink jet printer cartridge. When a full color image is printed on a recording medium using an ink set having inks with similar dynamic surface tensions, a drying time is shortened, and a clear image without color boundary bleeding can be realized with reproducibility. |