Patent ID: 7029813
Filing Date: 2006-04-18
Classification: G03G

Abstract:
1. A toner comprising: toner particles containing at least a colorant, a release agent, a polar resin, and an inorganic fine powder, wherein said polar resin contains (a) at least 3% by weight of said polar resin of a polyester resin unit obtained by carrying out polymerization in the presence of from 0.01% by weight to 2% by weight titanium chelate compound as a catalyst, and (b) has an acid value of from 3 mg×KOH/g to 35 mg×KOH/g; said toner particles are obtained by carrying out granulation in an aqueous medium; said toner has a weight average particle diameter of from 4 μm to 10 μm; and wherein in said titanium chelate compound, its chelating compound is a diol, a dicarboxylic acid or an oxycarboxylic acid.