| 摘要 |
<p>PURPOSE:To provide a toner and its producing method, capable of making fixing property compatible with anti-off-set property, providing a toner with excellent pulverizing property and causing no discharge from a cleaning member for fixing to a transferred paper. CONSTITUTION:In the electrostatic charge image developing toner having at least a resin and a coloring agent, a tetrahydrofuran-insoluble portion in the resin is 2-20wt.%, the weight average molecular weight of the tetrahydrofuran- soluble portion in molecular weight distribution measured by gel permeation chromatography(GPC) is 200,000 to 400,000, the region of 500-4000 molecular weight in the tetrahydrofuran-soluble portion is 3-15wt.% and the region of >=1,000,000 molecular weight is 3-25wt.%.</p> |
