TONER FOR ELECTROSTATIC CHARGE IMAGE DEVELOPMENT, ELECTROSTATIC CHARGE IMAGE DEVELOPER, TONER CARTRIDGE, PROCESS CARTRIDGE, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD

摘要

PROBLEM TO BE SOLVED: To provide a toner for electrostatic charge image development that suppresses a change in chargeability caused by an environmental change for a long period.

SOLUTION: A toner for electrostatic charge image development contains: toner particles; and sol-gel silica having a volume average particle diameter of 70 nm or more and 400 nm or less, and an average circularity of 0.5 or more and 0.9 or less. The toner has a dielectric loss factor of 5×10-3or more and 30×10-3or less when being left for 24 hours under conditions of temperature at 28°C, and humidity of 85%.

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