CPC G03G 9/0804 (2013.01) [G03G 9/0819 (2013.01); G03G 9/0827 (2013.01); G03G 9/08711 (2013.01); G03G 9/08755 (2013.01); G03G 9/0904 (2013.01)] | 20 Claims |
1. A method for producing a toner, the method comprising:
aggregating and coalescing resin particles and colorant particles in an aqueous medium, wherein
the resin particles comprise a composite resin comprising a polyester resin segment, an addition polymer resin segment which is an addition polymerized product of a raw material monomer comprising a styrenic compound, and a structural unit derived from a bireactive monomer bonding to the polyester resin segment and the addition polymer resin segment via a covalent bond,
the colorant particles comprise carbon black having a dibutyl phthalate oil absorption amount of from 20 ml/100 g to 50 ml/100 g as a colorant and an addition polymer of a raw material monomer comprising a styrenic compound, where the addition polymer in the colorant particles comprises a structural unit derived from the styrenic compound in the main chain, and wherein a pH value of carbon black is from 5 to 6.8, and
a ratio by mass of the colorant to the addition polymer in the colorant particles is from 50/50 to 95/5.
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