Magenta toner
AssigneeZeon Corporation
InventorMasashi WATANABE
Life of this patent
Estimating the term…
Abstract
Provided is a magenta toner, which is excellent in image density, has an enhanced chargeability, and can be produced at a low cost. The magenta toner comprising a binder resin and a magenta colorant, wherein a compound A represented by the general formula (1) and a compound B represented by the general formula (2) are contained as the magenta colorant, and wherein a total content of the compound A and the compound B is from 3 to 30 parts by mass with respect to 100 parts by mass of the binder resin, and a mass ratio of the content of the compound A to the content of the compound B (compound A/compound B) is from 0.8 to 20.
Claims4
A magenta toner comprising a binder resin and a magenta colorant,
- wherein a compound A represented by the following general formula (1) and a compound B represented by the following general formula (2) are contained as the magenta colorant, and
- wherein a total content of the compound A and the compound B is from 3 to 30 parts by mass with respect to 100 parts by mass of the binder resin, and a mass ratio of the content of the compound A to the content of the compound B (compound A/compound B) is from 0.8 to 20:
- where R1 is a hydrogen atom, an alkyl group or an alkoxy group;
- R2 is a hydrogen atom, a halogen atom or an alkoxy group;
- R3 is a hydrogen atom, a halogen atom, an alkoxy group or a nitro group;
- R4 is a hydrogen atom, a halogen atom or an alkoxy group;
- R5 is a hydrogen atom, a halogen atom or a primary amide group (—CONH2);
- and
- R6 is a hydrogen atom, a halogen atom, a phenylaminocarbonyl group (—CONHC6H5), a primary amide group (—CONH2), —CONHC6H4-(p)CONH2 or —SO2(C2H5)2,
- where R7 and R10 are each independently an amino group or a hydroxyl group;
- and
- R8 and R9 are each independently a hydrogen atom, a halogen atom or a phenoxy group (—OC6H5) which may be substituted or not substituted.
Dependencies are inferred from the claim text.