To obtain a colored composition having excellent color hue and excellent fastness, to provide an inkjet recording ink which uses the colored composition, uses the good color hue and can form images having high fastness to light and active gases, especially ozone, in environments, to provide an inkjet recording method, and further to provide a color toner having excellent color reproducibility and light fastness, an optical recording medium, an ink sheet for thermally sensitive transfer recording material, and a color filter.
The colored composition is characterized by containing an azo dye represented by formula (1) (R1, R2 and R3 are each H or a substituent; B is a heterogeneous ring which is selected from the group 1 of the following heterocyclic groups and may be substituted). B: preferably a five-membered heterocyclic compound such as pyrrole or thiophene.
YASUKAWA HIROYUKI
SUZUKI TAKASHI
IKESU SATORU
