| abstract |
Kind Code: A1 Abstract: In an ink jet recording using an ink set including a plurality of thermal ink jet recording inks having the same hue and different coloring material densities, an ink set for thermal ink jet recording and a thermal ink jet recording excellent in ejection stability, particularly, heater durability. Provide equipment. A thermal ink jet recording ink set containing at least two types of inks containing at least a colorant, a water-soluble organic solvent, and water and having the same hue and different colorant concentrations, wherein the ink contains a kogation deposition inhibitor. And the content of the kogation deposition inhibitor is inversely proportional to the colorant concentration of the ink. [Selection diagram] Fig. 1 |