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US 8,298,736 B2Granted
Electrophotographic toner
AssigneeKonica Minolta Business Technologies, Inc.
InventorsNaohiro Hirose, Hiroyuki Yasukawa, Natsuko Kusaka, Miyuki Murakami, Yohei Ohno
Life of this patent
Estimating the term…
Abstract
Provided is a toner comprising toner particles containing a binder resin and coloring matters, wherein the coloring matters comprise a dye represented by Formula (X-1), a metal compound represented by Formula (1) and a quinacridone pigment represented by Formula (2):
Claims9
A toner comprising:
- toner particles containing a binder resin and coloring matters,
- wherein the coloring matters comprise a dye represented by Formula (X-1), a metal compound represented by Formula (1) and a quinacridone pigment represented by Formula (2) and a total amount of the dye represented by Formula (X-1), the metal compound represented by Formula (1) and the quinacridone pigment represented by Formula (2) is 2-20 mass % based on the total mass of toner;
- wherein Rx1 and Rx2 each independently represent an alkyl group;
- Lx represents a hydrogen atom or an alkyl group;
- Gx1 represents an alkyl group of 2 or more carbon atoms;
- Gx2 represents an alkyl group or an aromatic hydrocarbon;
- Gx3 represents a hydrogen atom, a halogen atom, Gx4 —CO—NH—, or Gx5 —N(Gx6)-CO—, provided that Gx4 is a substituent, and Gx5 and Gx6 each independently represents a hydrogen atom or a substituent;
- and Qx1, Qx2, Qx3, Qx4, and Qx5 each independently represents a hydrogen atom or a substituent,
- wherein R1 and R2 each independently represent hydrogen atom, an alkyl group, an alkenyl group, a alkynyl group, an aryl group, a heterocyclic group, an alkoxycarbonyl group, an aryloxycarbonyl group, a sulfamoyl group, a sulfinyl group, an alkylsulfonyl group, a arylsulfonyl group, a cyano group, a trifluoroalkyl group or a nitro group, provided that one of R1 and R2 is an electron withdrawing group;
- R3 represents an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group, provided that a group represented by R3 contains 3 carbon atoms or more;
- X represents Cu, Ni, or Co,
- wherein R11 to R18 each independently represent a hydrogen atom, an alkyl group, a halogen atom or a methoxy group.
9 more elements
Dependencies are inferred from the claim text.