Toner for use in electrophotography and method of producing the same
AssigneeRicoh Company, Ltd.
InventorHiroshi Yamashita
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AssigneeRicoh Company, Ltd.
InventorHiroshi Yamashita
Estimating the term…
A toner for use in electrophotography has toner particles, each toner particle containing a resin, a colorant, a fluidity-imparting agent and a volatile organic component which is in an amount of 100 ppm or less per unit amount of the toner particles, and having an average spherical degree in a range of 100 to 150. In addition, the above-mentioned toner is produced by preparing primary particles, each particle including a resin and a colorant, depositing a fluidity-imparting agent on the surface of the primary particles, dispersing the fluidity-imparting agent deposited primary particles in a liquid containing a dispersant, in which liquid the resin is insoluble, thereby preparing a dispersion of the primary particles, heating the dispersion with stirring, and cooling the dispersion, thereby obtaining toner particles for use in the toner.
A toner for use in electrophotography comprising toner particles, each toner particle comprising a resin, a colorant, a fluidity-imparting agent and a volatile organic component which is in an amount of 100 ppm or less per unit amount of said toner particles, and having an average spherical degree in a range of 100 to 150, which is calculated from a spherical degree (SD) of each toner particle defined by formula (I):
A method of producing toner particles, each toner particle comprising a resin, a colorant, a fluidity-imparting agent and a volatile organic component which is an amount of 100 ppm or less per unit amount of said toner particles, and having an average spherical degree in a range of 100 to 150, which is calculated from a spherical degree (SD) of each toner particle defined by formula (I):
Dependencies are inferred from the claim text.