Patent ID: 8092974

Claim:
A production method of a toner for developing an electrostatic image comprising steps of: providing a polymerizable monomer composition comprising at least a polymerizable monomer and a colorant; dispersing the polymerizable monomer composition in an aqueous dispersion medium comprising a dispersion stabilizer to obtain a suspension having droplets of the polymerizable monomer composition dispersed; adding an inhibitor of small diameter microparticle production from 0.01 to 1 part by weight in the aqueous dispersion medium with respect to the polymerizable monomer of 100 parts by weight after forming droplets of the polymerizable monomer composition, wherein the inhibitor of small diameter microparticle production is provided separately from the polymerizable monomer composition; performing a suspension polymerization with the aqueous dispersion medium in the presence of a polymerization initiator to obtain colored resin particles; wherein a minimum reaction activation energy E min of the inhibitor of small diameter microparticle production is 7 kcal/mol or less and an octanol/water partition coefficient logP is 2 or less; and wherein the minimum reaction activation energy E min is a minimum value of a reaction activation energy “E” which is required when a phenylpropane radical represented by the following Formula 1 acts on the inhibitor of small diameter microparticle production so as to withdraw a hydrogen of a phenolic hydroxyl group present in a molecular structure of the inhibitor of small diameter microparticle production followed by production of a radical: