Yellow toner
A yellow toner which provides, even in small amounts, a sharper color and brighter gloss, and higher reflection density than ever before, and which has excellent light resistance. The yellow toner contains a binder resin and a yellow colorant, wherein, as the yellow colorant, at least one of the compound A represented by the following general formula (1) and the compound B represented by the following general formula (2), and the compound C represented by the following formula (3) are contained:
1. A yellow toner comprising a binder resin and a yellow colorant,
wherein, as the yellow colorant, at least one of the compound A represented by the following general formula (1) and the compound B represented by the following general formula (2), and the compound C represented by the following formula (3) are contained:
where R 1A , R 1B , R 2A and r 2B are each independently a halogen atom, an alkyl group, an alkoxy group, an amino group, a nitro group, an acetylamide group (—NHCOCH 3 ), a methyl ester group (—COOCH 3 ), a primary amide group (—CONH 2 ) or an arylamide group (—CONHAr); R 3A and R 3B are each independently a halogen atom or an alkyl group; R 4 and R 5 are each independently a halogen atom, an alkyl group, a methoxy group, an amino group, a nitro group, an acetylamide group (—NHCOCH 3 ), an acetyl group (—COCH 3 ), a methyl ester group (—COOCH 3 ) or a primary amide group (—CONH 2 ); 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; c1 and c2 are non-negative integers that a sum of the non-negative integers c1 and c2 is 0 or more and 3 or less; d and e are each independently 1 or 2; Ar is an aryl group having 6 to 10 carbon atoms, which may have a substituent,
where R 6A and R 6B are each independently a halogen atom, an alkyl group, an alkoxy group, an amino group, a nitro group, an acetylamide group (—NHCOCH 3 ), a methyl ester group (—COOCH 3 ), a primary amide group (—CONH 2 ) or an arylamide group (—CONHAr); R 7 and R 8 are each independently a halogen atom, an alkyl group, a methoxy group, an amino group, a nitro group, an acetylamide group (—NHCOCH 3 ), an acetyl group (—COCH 3 ), a methyl ester group (—COOCH 3 ) or a primary amide group (—CONH 2 ); f1 and f2 are non-negative integers that a sum of the non-negative integers f1 and f2 is 1 or more and 3 or less; g is an integer of 0 or more and 3 or less; h is 1 or 2; Ar is an aryl group having 6 to 10 carbon atoms, which may have a substituent and
2. The yellow toner according to claim 1 , wherein the compound A and the compound B are each a yellow pigment, and the compound C is a yellow dye.
3. The yellow toner according to claim 1 , wherein a total content of the compound A and the compound B is from 1 part by mass to 15 parts by mass, and a content of the compound C is from 0.1 parts by mass to 8.0 parts by mass, with respect to 100 parts by mass of the binder resin.
4. The yellow toner according to claim 1 , wherein a mass ratio of a total content of the compound A and the compound B to a content of the compound C ((compound A+compound B)/compound C) is from 0.1 to 10.