Toner
AssigneeKao Corporation
InventorsHisakazu TAJIMA, Kohei Katayama, Eiji Shirai, Akihiro Eida
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Abstract
A toner containing a resin binder containing two kinds of polyesters having softening points that differ by 10° C. or more, a colorant and a charge control agent, wherein the two kinds of polyesters contain a polyester A having a softening point of from 105° to 140° C. and a glass transition temperature of from 30° to 55° C., and a polyester B having a softening point of from 140° to 170° C. and a glass transition temperature of exceeding 55° C. and 80° C. or lower. The toner of the present invention is usable in, for example, development of latent images formed in electrophotography, electrostatic recording method, electrostatic printing method or the like.
Claims10
A toner comprising a resin binder comprising two kinds of polyesters having softening points that differ by 10° C. or more, a colorant and a charge control agent, wherein the two kinds of polyesters comprise a polyester A having a softening point of from 105° to 140° C. and a glass transition temperature of from 30° to 55° C., and a polyester B having a softening point of from 140° to 170° C. and a glass transition temperature of exceeding 55° C. and 80° C. or lower.
Dependencies are inferred from the claim text.