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    • 8. 发明申请
    • TONER, DEVELOPER, IMAGE FORMING APPARATUS, AND IMAGE FORMING METHOD
    • 调色剂,开发商,图像形成装置和图像形成方法
    • US20120288791A1
    • 2012-11-15
    • US13456659
    • 2012-04-26
    • Shingo SakashitaKazumi SuzukiTatsuya Morita
    • Shingo SakashitaKazumi SuzukiTatsuya Morita
    • G03G13/20G03G9/087G03G15/08G03G9/16
    • G03G9/08755G03G9/0804G03G9/08782G03G9/08795G03G9/08797
    • In accordance with some embodiments, a toner including a first binder resin, a release agent, a release agent dispersing resin, and a colorant is provided. The first binder resin includes an amorphous polyester resin (a) having a polyhydroxycarboxylic acid skeleton in its main chain. The polyhydroxycarboxylic acid skeleton comprises optically-active monomers having an optical purity X of 80% by mole or less. The optical purity X is represented by the following formula: X (% by mole)=|X(L-form)−X(D-form)| wherein X(L-form) and X(D-form) represent ratios (% by mole) of L-form and D-form optically-active monomers, respectively. The release agent includes an ester of a fatty acid having an average carbon number of 18 to 24 with glycerin or a polyglycerin having an average polymerization degree of 2 to 10. The ester has a melting point of 55 to 80° C.
    • 根据一些实施方案,提供了包含第一粘合剂树脂,脱模剂,脱模剂分散树脂和着色剂的调色剂。 第一粘合剂树脂包括在其主链中具有聚羟基羧酸骨架的无定形聚酯树脂(a)。 聚羟基羧酸骨架包含光学纯度X为80摩尔%以下的光学活性单体。 光学纯度X由下式表示:X(摩尔%)= | X(L型)-X(D-型)| 其中X(L型)和X(D型)分别表示L型和D型光学活性单体的比例(摩尔%)。 脱模剂包括平均碳数为18〜24的脂肪酸与甘油或平均聚合度为2〜10的聚甘油的酯。该酯的熔点为55〜80℃。