Patent ID: 6746808
Filing Date: 2004-06-08
Classification: G03G

Abstract:
A color toner for forming an image, comprising at least a binder resin and a colorant, which is used in an image forming method employing a photofixing system, said color toner further comprising at least one additive selected from the group consisting of:(1) light-absorbing fine composite particles comprising core particles and at least two coating layers having different refractive indexes laminated on the surface of the core particles; (2) an azulene compound represented by the following general formula (I): â€ƒwherein R1 to R12 may be the same or different and each represents a hydrogen atom, or a substituted or unsubstituted, saturated or unsaturated, aliphatic hydrocarbon group, X represents an anion, and n represents a positive integer; (3) a cyanine compound represented by the following general formula (II): â€ƒwherein R1 to R5 may be the same or different and each represents a hydrogen atom, a substituted or unsubstituted, saturated or unsaturated, aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aromatic hydrocarbon group, or an aromatic hydrocarbon group having an aliphatic hydrocarbon side chain, and X represents an anion; (4) a quinoline compound represented by the following general formula (III): â€ƒwherein RI represents a hydrogen atom, a halogen atom, or a monovalent substituent, RII and RIII may be the same or different and each represents a hydrogen atom, or a substituted or unsubstituted, saturated or unsaturated, aliphatic hydrocarbon group, M represents a transition metal atom, X represents an anion, and n represents a positive integer; (5) a quinoline compound represented by the following general formula (IV): â€ƒwherein L represents a bonding group, RII and RIII may be the same or different and each represents a hydrogen atom, or a substituted or unsubstituted, saturated or unsaturated, aliphatic hydrocarbon group, M represents a transition metal atom, X represents an anion, and n represents a positive integer; (6) a polymethine compound represented by the following general formula (V): â€ƒwherein R1 and R2 may be the same or different and each represents a hydrogen atom, a substituted or unsubstituted, saturated or unsaturated, aliphatic hydrocarbon group, an alicyclic hydrocarbon group, an aromatic hydrocarbon group, or an aromatic hydrocarbon group having an aliphatic hydrocarbon side chain, and X represents an anion; (7) a benzene metal complex represented by the following general formula (VI): â€ƒwherein R represents a monovalent substituent, A and B may be the same or different and each represents a sulfur atom, a selenium atom, or â€”NH, M represents a transition metal atom, and X represents a cation; and (8) a photothermal conversion ceramic.