TONER

摘要

A toner having good development durability, storage stability, environmental stability, and low-temperature fixability is provided. The toner contains toner particles each including a surface layer that contains an organic silicon polymer. The organic silicon polymer contains a specific unit. In a chart obtained by 29Si-NMR measurement of THF insoluble components of the toner particles, the ratio of a peak area attributable to a specific structure to the total peak area of the organic silicon polymer is 0.40 or more.

主权项

1. A toner comprising:
toner particles each including a surface layer that contains an organic silicon polymer, the organic silicon polymer including a unit represented by formula (1) or (2) below:(In formula (2), L represents a methylene group, an ethylene group, or a phenylene group),
wherein, in a chart obtained by 29Si-NMR measurement performed on THF insoluble components of the toner particles, a ratio SQ3 of a peak area attributable to a structure represented by formula (Q3) below to a total peak area of the organic silicon polymer satisfies mathematical formula (3) below:
RF—SiO3/2  (Q3)(In formula (Q3), RF represents one of structures represented by formulae (i) to (iv) below:(In formulae (i) to (iv), * represents a bonding portion that bonds to the silicon atom. In formulae (ii) and (iv), L independently represents a methylene group, an ethylene group, or a phenylene group)), and
SQ3≧0.40  (3)