公开(公告)号：US20120315574A1

公开(公告)日：2012-12-13

申请号：US13578813

申请日：2011-05-12

申请人： Katsuyuki Nonaka ,  Yasuhiro Hashimoto ,  Naoya Isono ,  Akira Sugiyama ,  Yuhei Terui

发明人： Katsuyuki Nonaka ,  Yasuhiro Hashimoto ,  Naoya Isono ,  Akira Sugiyama ,  Yuhei Terui

IPC分类号： G03G9/087

CPC分类号： G03G9/09733 ,  G03G9/0806 ,  G03G9/097

摘要： A toner is provided that exhibits a high long-term image stability even during high-speed printing and that also exhibits an excellent environmental stability. The toner comprises a binder resin, a colorant, and a nonionic surfactant, wherein the nonionic surfactant has an oxyethylene group (EO) and an oxypropylene group (PO) and has a ratio of the number of moles of the oxypropylene group to the number of moles of the oxyethylene group (PO/EO) of at least 0.01 and not more than 5.00; and when A (μg/g) is defined as a nonionic surfactant content on the surface of the toner that can be extracted by methanol from 1 g of the toner and B (m2/g) is defined as a theoretical specific surface area determined from a toner particle diameter distribution obtained by a precision particle diameter distribution analyzer that operates based on an aperture electrical resistance method, a ratio A/B is at least 100 μg/m2 and not more than 9000 μg/m2.

摘要翻译： 提供即使在高速印刷期间也表现出高的长期图像稳定性并且也表现出优异的环境稳定性的调色剂。 调色剂包括粘合剂树脂，着色剂和非离子表面活性剂，其中非离子表面活性剂具有氧化乙烯基（EO）和氧化亚丙基（PO），并且氧化丙烯基的摩尔数与 氧乙烯基（PO / EO）的摩尔数为至少0.01且不大于5.00; 并且当将A（μg/ g）定义为可从1g调色剂中由甲醇提取的调色剂表面上的非离子表面活性剂含量，B（m 2 / g）定义为从 通过基于孔径电阻法操作的精密粒径分布分析仪获得的调色剂粒径分布，A / B比至少为100μg/ m 2且不大于9000μg/ m 2。

公开(公告)号：US20110305989A1

公开(公告)日：2011-12-15

申请号：US13153324

申请日：2011-06-03

申请人： Naoya Isono ,  Katsuyuki Nonaka ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

发明人： Naoya Isono ,  Katsuyuki Nonaka ,  Yasuhiro Hashimoto ,  Akira Sugiyama ,  Yuhei Terui

IPC分类号： G03G9/00

CPC分类号： G03G9/0804 ,  G03G9/0806

摘要： A method of stably producing a toner is provided. This method provides a long-term stabilization of material dispersion in a colorant-dispersed solution and inhibits segregation of the material and provides a more microfine and more uniform dispersion of the colorant in the toner, and moreover produces a toner that has a sharp toner particle diameter distribution. This method of producing toner has at least a colorant dispersion step of obtaining a colorant-dispersed solution by dispersing a pigment-containing colorant in a liquid mixture that contains the colorant and a dissolved resin solution or a polymerizable monomer, wherein the liquid mixture contains a nonionic surfactant and the nonionic surfactant has at least an oxyalkylene group and has a hydrophile-lipophile balance value (HLB value) of 9.0 or more and 17.0 or less.

摘要翻译： 提供一种稳定生产调色剂的方法。 该方法提供了在着色剂分散溶液中的材料分散体的长期稳定化，并且抑制了材料的偏析并且提供了更多的微细和更均匀的着色剂在调色剂中的分散体，并且还产生具有尖锐的调色剂颗粒 直径分布。 这种制造调色剂的方法至少具有着色剂分散步骤，其通过将含颜料的着色剂分散在含有着色剂的液体混合物和溶解的树脂溶液或可聚合单体中来获得着色剂分散溶液，其中液体混合物含有 非离子表面活性剂和非离子表面活性剂至少具有氧化烯基，亲水亲油平衡值（HLB值）为9.0以上且17.0以下。