| 摘要 |
<p>PURPOSE:To provide the production method for the electrostatic charge image developing toner having a prescribed grain size by efficiently executing the pulverizing and the classification of the solid particles having a binding resin. CONSTITUTION:In the production method for the electrostatic charge image developing toner, the classification point of a multistage fine powder classification means satisfies the following condition, 1.0<A1<...<An-1(5 (1), 1.5<An<7 (2), A1<...<An-1<An (3), 2<=n<=5 (4), and the medium powder collected to a multistage fine powder classification stage has 3-8mum weight-average grain size D4 and the coefficient of variation of number distribution satisfies the following condition, 20<=B<=40 (5).</p> |
