TONER FOR SUBLIMATION TRANSFER, METHOD FOR PRODUCING THE SAME, AND SUBLIMATION TRANSFER DYEING METHOD

摘要

To provide a toner containing a sublimation dye having good heat resistant storage property, a method for producing the same, and a sublimation transfer dyeing method using the toner.SOLUTION: A toner for sublimation transfer includes toner base particles containing at least a binder resin and a sublimation dye and an external additive bonded to the toner base particles, in which the toner base particles are surface-modified with inorganic fine particles as a fluidization agent and the external additive is bonded to the surface of the surface-modified toner base particles, a volume-based median diameter D50 of the toner is 4 μm to 10 μm, a glass transition temperature of the toner is 53°C to 70°C, and when a specific surface area of a true sphere in the volume-based median diameter D50 of the toner is represented by A0, a cleaning toner is obtained by charging 2 g of a sample of the toner into 40 mL of an aqueous solution containing 0.5 mass% of surface active agent polyoxyethylene (9) lauryl ether, treating the mixture at high-frequency output of 180 W for 10 minutes using an ultrasonic cleaning machine, filtering the mixture using filter paper No. 6 with a sieve opening of 3.0 μm, and leaving a residual material on the filter paper for 12 hours, and BET specific surface area of the cleaning toner is represented by A1, Expression (1) of 1.2A1/A02.6 is satisfied.SELECTED DRAWING: None