Toner

Abstract

A toner containing toner particles, each of which contains a binder resin and a colorant, and silica particles, wherein the silica particles have a volume average particle diameter (Dv) of 70 nm or more and 500 nm or less, the variation coefficient of diameters of the silica particles, based on volume distribution thereof, is 23% or less, and wherein when the silica particles are heated from 105° C. to 200° C., the ratio of mass decrease is 0.60% or less.

1 . A toner comprising:
 toner particles, each of which contains a binder resin and a colorant, and   silica particles;   wherein
 the silica particles have a volume average particle diameter (Dv) of 70 nm or more and 500 nm or less, 
 the variation coefficient of diameters of the silica particles, based on volume distribution thereof, is 23% or less, and 
   wherein
 when heating the silica particles to measure the mass variation, the ratio of mass decrease of the silica particles at the temperature in the range of 105° C. to 200° C. is 0.60% or less. 
   
     
     
         2 . The toner according to  claim 1 , wherein the silica particles are produced by a sol-gel method. 
     
     
         3 . The toner according to  claim 1 , wherein the silica particles are treated with a hydrophobizing agent, and the fixing ratio of the hydrophobizing agent to the silica particles is 90% or more. 
     
     
         4 . The toner according to  claim 3 , wherein the silica particles have the amount of carbon derived from the hydrophobizing agent of 0.01% by mass or more and 4.5% by mass or less.