Toner and method of producing toner
AssigneeCanon Kabushiki Kaisha
InventorsAkiko Kitao, Ryuji Higashi, Taichi Shintou, Takeshi Miyazaki
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Abstract
The present invention provides a toner that exhibits an excellent chromogenicity and provides a method of producing a toner that has an excellent particle size distribution and an excellent chromogenicity, in which a toner containing a binder resin and a colorant that contains a coloring compound with general formula (1), and a method of producing this toner.
Claims16
A toner comprising a binder resin and a colorant, wherein
- the colorant comprises a coloring compound that has the structure shown by the following general formula (1)
- in general formula (1),
- R1 to R6 each independently represent a hydrogen atom, an alkyl group, a hydroxyl group, an amino group, a carboxy group, an aryl group, an aralkyl group, —CH2OH, or —CH2—O—CH═CH2, or an atomic group as required to form a saturated alicyclic hydrocarbon ring by the bonding of any two or more of R1 to R6 to each other;
- R7 to R12 each independently represent a hydrogen atom, an alkyl group, a hydroxyl group, an amino group, a carboxy group, an aryl group, an aralkyl group, —CH2OH, or —CH2—O—CH═CH2, or an atomic group as required to form a saturated alicyclic hydrocarbon ring by the bonding of any two or more of R7 to R12 to each other;
- each independently represent either one of a substituted or unsubstituted aryl ring and a heterocycle that contains 1 or 2 nitrogen atoms;
- and
- M represents at least one metal atom selected from the group consisting of Si, Ge, and Sn.
A method of producing a toner, comprising the step of dispersing in an aqueous medium a polymerizable monomer composition containing a polymerizable monomer and a colorant to produce particles of the polymerizable monomer composition and thereafter polymerizing the polymerizable monomer to produce toner particles, wherein the colorant contains a coloring compound that has the structure shown by the following general formula (1)
- in general formula (1),
- R1 to R6 each independently represent a hydrogen atom, an alkyl group, a hydroxyl group, an amino group, a carboxy group, an aryl group, an aralkyl group, —CH2OH, or —CH2—O—CH═CH2, or an atomic group as required to form a saturated alicyclic hydrocarbon ring by the bonding of any two or more of R1 to R6 to each other;
- R7 to R12 each independently represent a hydrogen atom, an alkyl group, a hydroxyl group, an amino group, a carboxy group, an aryl group, an aralkyl group, —CH2OH, or —CH2—O—CH═CH2, or an atomic group as required to form a saturated alicyclic hydrocarbon ring by the bonding of any two or more of R7 to R12 to each other;
- each independently represent either one of a substituted or unsubstituted aryl ring and a heterocycle that contains 1 or 2 nitrogen atoms;
- and
- M represents at least one metal atom selected from the group consisting of Si, Ge, and Sn.
Dependencies are inferred from the claim text.