| 摘要 |
PROBLEM TO BE SOLVED: To provide toner having a significantly improved dispersion state of a colorant in toner particles. SOLUTION: The toner contains: (i) a binder resin; (ii) a colorant; (iii) at least one of metallophthalocyanine and/or a metallophthalocyanine derivative having a central metal selected from a group consisting of Cr, Fe, Co, Ni, Zn, Mn, Mg and Al; and (iv) a polymer containing a structural unit of 0.5 to 20 mass% derived from a polymerizable monomer expressed by structural formula (1). In formula (1), R<SB>1</SB>represents a hydrogen atom or a methyl group; each of R<SB>2</SB>and R<SB>3</SB>independently represents a hydrogen atom, aryl group, alkyl group, alkenyl group or alkoxy group; X<SB>1</SB>represents a hydrogen atom, alkali metal, alkaline earth metal or quaternary ammonium salt; and n represents an integer 1 to 10. COPYRIGHT: (C)2005,JPO&NCIPI |
