| 摘要 |
PURPOSE:To obtain a blackened toner having the excellent spectral reflection and electrification characteristics by incorporating a specific imido substd. alkyl cupper phthalocyanine compd., an azo compd. having a specific structure and a specific fluoran compd. in a binding resin. CONSTITUTION:The phthalocyanine compd. shown by formula (1), the azo compd. shown by formula (2) and the fluoran compd. shown by formula (3) are incorporated in the binding resin. In the formulas, X1-X4 are each -H atom, etc., A and A1 are each 1-5 C alkylene group, R1 and R3 are each -COOH or -OH, etc., R2 is -SO3Na group or -H atom, R4-R8 are each -H atom or -CnH2n+1 group (n=1, 2, 3), X is Cl atom or -SO3H group. Thus, the titled toner has sufficient electrification property, and contains a coloring agent capable of reflecting or transmitting an infra-red ray. The titled toner having the good environmental stability, especially, less difference of the charged amount, even at each surroundings of a low temp. and humidity and a high temp. and humidity, is obtd. |
