TONER

TONER

The toner contains a toner particle having a core-shell structure including: a core containing a binder resin and a colorant; and a shell, wherein the toner contains a crystalline material, and the shell contains an amorphous thermoplastic resin; and when SP values of the crystalline material and th...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Hauptverfasser: Suzumura, Yoshitaka, Nozaki, Dai, Unno, Tomohiro
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
CINEMATOGRAPHY
COMPOSITIONS BASED THEREON
ELECTROGRAPHY
ELECTROPHOTOGRAPHY
HOLOGRAPHY
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
MAGNETOGRAPHY
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PHOTOGRAPHY
PHYSICS
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:The toner contains a toner particle having a core-shell structure including: a core containing a binder resin and a colorant; and a shell, wherein the toner contains a crystalline material, and the shell contains an amorphous thermoplastic resin; and when SP values of the crystalline material and the amorphous thermoplastic resin, which are calculated by the Fedors method, are defined as SPc (J/cm3)0.5 and SPa (J/cm3)0.5, respectively, the SPc and the SPa (J/cm3) satisfy a particular relationship, and when the toner is observed by SEM after the toner has been subjected to ruthenium staining that treats the toner in an atmosphere of RuO4 gas having 500 Pa for 15 minutes, a ratio S2 (%) of an area occupied by the crystalline material per area of the toner satisfies a particular relationship.