| abstract |
(57) [Problem] Coloring with a wide color reproduction area, excellent color uniformity, effective suppression of bleeding at a color boundary portion where different color areas are adjacent on a recording material, and excellent scratch resistance. Provided is a method of forming a portion on a recording material, an ink jet recording apparatus, and an ink set excellent in ink jet recording characteristics such as storage stability and ejection stability of a recording head. SOLUTION: An ink set having independently an anionic or cationic aqueous ink containing a coloring material and a liquid composition containing fine particles whose surface is charged in the opposite polarity to the ink in a dispersed state. In addition, the ink and the liquid composition are adjusted such that the pH of the mixed liquid when each of them is mixed at a weight ratio of about 1 to 1 is at least a pH that causes aggregation of the coloring material. A set, a method for forming a colored portion on a recording medium, and an ink jet recording apparatus. |