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US 8,383,313 B2Granted
Toner
AssigneeCanon Kabushiki Kaisha
InventorsYasukazu Ayaki, Tsuneyoshi Tominaga
Life of this patent
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Abstract
Provided is a toner including toner particles each containing a binder resin, a colorant, and a wax, and inorganic fine particles, the toner having such a characteristic that a temperature-storage elastic modulus curve at a high frequency shows a characteristic change in its behavior in a specific temperature region with respect to a temperature-storage elastic modulus curve at a low frequency.
Claims6
A toner, comprising:
- toner particles each comprising at least a binder resin, a colorant, and a wax;
- and
- inorganic fine particles,
- wherein:
- the toner has a local maximum A at a temperature of 60.0 to 135.0° C. and a local maximum B at a temperature of 35.0 to 85.0° C. in a (temperature-G′10/G′1) curve created by plotting a ratio (G′10/G′1) between a storage elastic modulus (G′1) at a frequency of 1 Hz and a storage elastic modulus (G′10) at a frequency of 10 Hz on a y axis and a temperature (° C.) at which the storage elastic moduli are measured on an x axis;
- and
- when a temperature at which the curve shows the local maximum A is represented by Ta (° C.) and a temperature at which the curve shows the local maximum B is represented by Tb (° C.),
- the Ta (° C.) is higher than the Tb (° C.), and a difference (Ta−Tb) (° C.) between the Ta (° C.) and the Tb (° C.) is 15.0 to 90.0° C., and
- a value (G′a) for the G′10/G′1 at the Ta (° C.) is 5.0 or more.
6 more elements
Dependencies are inferred from the claim text.