Method of producing polymerized toner

A method of producing a polymerized toner comprising the steps of:

• (1) preparing a polymerizable monomer composition containing a polymerizable monomer and a colorant;
• (2) forming a droplet of the polymerizable monomer composition by dispersing the polymerizable monomer composition in an aqueous dispersion medium;
• and
• (3) forming a colored resin particle by polymerizing the droplet of the polymerizable monomer composition,
• wherein the step (1) includes a dispersing process in which a polymerizable monomer mixture containing the polymerizable monomer and the colorant is supplied to a media type dispersing machine equipped with a media particle and a screen for media separation and the colorant is dispersed in the polymerizable monomer mixture to obtain a polymerizable monomer dispersion, and
• wherein a media diameter of the media particle and an aperture ratio of the screen for media separation satisfy the following formulas 1 and 2:
• Formula
• 
• 
• 1
• 
• :
• 0.01
• 
• 
• mm
• ≤
• (
• media
• 
• 
• diameter
• )
• ≤
• 0.3
• 
• 
• mm
• Formula
• 
• 
• 2
• :
• 50
• ≤
• (
• Aperture
• 
• 
• ratio
• )
• (
• Media
• 
• 
• diameter
• )
• ≤
• 260
• wherein, in the Formula 2, the aperture ratio is a value expressed in percentage and the media diameter is a value expressed in millimeter.