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    • 2. 发明授权
    • Toner for use in electrophotography
    • 电子照相用墨粉
    • US4859560A
    • 1989-08-22
    • US107016
    • 1987-10-09
    • Tadashi NakamuraYaosuo KitabatakeYoshiaki TakahashiKazuya Maeda
    • Tadashi NakamuraYaosuo KitabatakeYoshiaki TakahashiKazuya Maeda
    • G03G9/08
    • G03G9/081G03G9/0802G03G9/0808G03G9/0825Y10T428/2982
    • A method of producing toner particles for use in electrophotography where the particles have a colored resin core particle containing a resin and a colorant and charge controlling layer on the particle's outer surface. The charge controlling layer contains a charge controlling agent but not any colorant. The method comprises the steps of:(1) preparting toner core particles by mixing, kneading, crushing and sorting a first material including a resin material and a colorant,(2) preparing charge controlling particles with smaller diameters than the toner core particles by mixing, kneading, crushing and sorting a second material including a charge controlling agent, and(3) thereafter mixing the toner core particles the said charge controlling particles and causing a charge controlling layers to be formed around the toner core particles by applying a pressure to the mixed particles.
    • 一种生产用于电子照相术的调色剂颗粒的方法,其中颗粒在颗粒的外表面上具有包含树脂和着色剂和电荷控制层的着色树脂核心颗粒。 电荷控制层含有电荷控制剂,但不含任何着色剂。 该方法包括以下步骤:(1)通过混合,捏合,粉碎和分选包括树脂材料和着色剂的第一材料来调制调色剂芯颗粒,(2)通过混合制备直径小于调色剂芯颗粒的电荷控制颗粒 ,捏合,粉碎和分选包含电荷控制剂的第二材料,和(3)然后将调色剂芯颗粒混合所述电荷控制颗粒,并通过向调色剂核颗粒周围施加压力使电荷控制层形成 混合颗粒。