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US 10,520,842 B2Granted
Yellow toner
AssigneeZeon Corporation
InventorKeita Tokura
Life of this patent
Estimating the term…
Abstract
A yellow toner that is, even in small amounts, better in chroma than ever before. Disclosed is a yellow toner comprising a binder resin and a yellow colorant, wherein, as the yellow colorant, a compound A represented by the following general formula (1) and a compound B represented by the following formula (2) or (3) are contained, and wherein, with respect to 100 parts by mass of the binder resin, a content of the compound A is from 1 part by mass to 15 parts by mass, and a content of the compound B is from 0.1 part by mass to 8.0 parts by mass:
Claims2
A yellow toner comprising a binder resin and a yellow colorant,
- wherein, as the yellow colorant, a compound A represented by the following general formula (1) and a compound B represented by the following formula (2) are contained, and
- wherein, with respect to 100 parts by mass of the binder resin, a content of the compound A is from 1 part by mass to 15 parts by mass, and a content of the compound B is from 0.1 part by mass to 8.0 parts by mass:
- where R1A, R1B, R2A and R2B are each independently a halogen atom, an alkyl group, an alkoxy group, an amino group, a nitro group, an acetylamido group (—NHCOCH3), a methyl ester group (—COOCH3) or a primary amide group (—CONH2);
- R3 is a halogen atom;
- R4 and R5 are each independently a halogen atom, an alkyl group, a methoxy group, an amino group, a nitro group, an acetylamido group (—NHCOCH3), an acetyl group (—COCH3), a methyl ester group (—COOCH3) or a primary amide group (—CONH2);
- a1 and b1 are non-negative integers that a sum of the non-negative integers a1 and b1 is 1 or more and 3 or less;
- a2 and b2 are non-negative integers that a sum of the non-negative integers a2 and b2 is 1 or more and 3 or less;
- c is an integer of 1 or more and 3 or less;
- and d and e are each independently 1 or 2,
6 more elements
Dependencies are inferred from the claim text.