公开(公告)号：US5389490A

公开(公告)日：1995-02-14

申请号：US94348

申请日：1993-07-21

Applicant: Kazufumi Tomita ,  Izuru Matsui ,  Koichi Takashima

Inventor： Kazufumi Tomita ,  Izuru Matsui ,  Koichi Takashima

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/093

CPC classification number: G03G9/09328 ,  G03G9/09307 ,  G03G9/09335 ,  G03G9/09392

Abstract: A capsule toner and a process for producing the same, the capsule toner comprising a core material containing a fixing component, an outer shell covering the core material, and a chargeable substance adhered on the surface of the outer shell, the outer shell containing a polyurea resin and/or a polyurethane resin each obtained from an aliphatic polyisocyanate and an aromatic polyisocyanate. The capsule toner exhibits satisfactory charging properties while surely holding the fixing component inside to provide high quality images with excellent fixing properties.

Abstract translation: 胶囊调色剂及其制造方法，胶囊调色剂包含含有固定组分的芯材，覆盖芯材的外壳和附着在外壳表面上的带电物质，外壳含有聚脲 树脂和/或各自由脂族多异氰酸酯和芳族多异氰酸酯获得的聚氨酯树脂。 胶囊调色剂表现出令人满意的充电特性，同时确保将固定组件保持在内部，以提供具有优异定影性能的高质量图像。

公开(公告)号：US5215851A

公开(公告)日：1993-06-01

申请号：US754662

申请日：1991-09-04

Applicant: Kazufumi Tomita ,  Yoshihiro Inaba ,  Koichi Takashima

Inventor： Kazufumi Tomita ,  Yoshihiro Inaba ,  Koichi Takashima

IPC: G03G9/08 ,  G03G9/087 ,  G03G9/093

CPC classification number: G03G9/09328 ,  G03G9/09321 ,  G03G9/09392

Abstract: A toner comprising capsule particles composed of a core and an outer shell wherein the capsule particles have at least a substance capable of forming a radical at the surface thereof, and the capsule particles have adhered on the outer shell a copolymer comprising a hydrophilic vinyl monomer unit and a hydrophobic vinyl monomer unit. The toner exhibits stable chargeablity against environmental changes with a narrow charge distribution.

Abstract translation: 一种调色剂，其包含由芯和外壳组成的胶囊颗粒，其中所述胶囊颗粒至少具有能够在其表面形成自由基的物质，并且所述胶囊颗粒在外壳上附着包含亲水乙烯基单体单元的共聚物 和疏水乙烯基单体单元。 该调色剂对于具有窄电荷分布的环境变化表现出稳定的电荷性。