发明名称 |
Electrostatic latent image developing toner |
摘要 |
An electrostatic latent image developing toner includes toner particles that each include a toner core containing a binder resin and a shell layer disposed over a surface of the toner core. The binder resin includes a crystalline polyester resin and an amorphous polyester resin. The crystalline polyester resin has a melting point of at least 80° C. and no greater than 120° C. When the electrostatic latent image developing toner is measured using a differential scanning calorimeter, a glass transition point is observed in a first run but is not observed in a second run. The shell layer contains a resin including a thermosetting component and a thermoplastic component. |
申请公布号 |
US9632442(B2) |
申请公布日期 |
2017.04.25 |
申请号 |
US201514942488 |
申请日期 |
2015.11.16 |
申请人 |
KYOCERA Document Solutions Inc. |
发明人 |
Okita Masaki;Nakayama Yukinori;Takemori Toshiki;Mori Takamichi;Uemura Hiroki |
分类号 |
G03G9/08;G03G9/093 |
主分类号 |
G03G9/08 |
代理机构 |
Studebaker & Brackett PC |
代理人 |
Studebaker & Brackett PC |
主权项 |
1. An electrostatic latent image developing toner comprising
toner particles that each include a toner core containing a binder resin and a shell layer disposed over a surface of the toner core, wherein the binder resin includes a crystalline polyester resin and an amorphous polyester resin, the crystalline polyester resin has a melting point of at least 80° C. and no greater than 120° C., when the electrostatic latent image developing toner is measured using a differential scanning calorimeter, a glass transition point is observed in a first run but is not observed in a second run, and the shell layer contains a resin including a thermosetting component and a thermoplastic component, the crystalline polyester resin has a molecular weight distribution (Mw/Mn) of at least 4.7 and no greater than 6.5, the molecular weight distribution (Mw/Mn) of the crystalline polyester resin expressing a ratio of a mass average molecular weight (Mw) of the crystalline polyester resin relative to a number average molecular weight (Mn) of the crystalline polyester resin. |
地址 |
Osaka JP |