Invention Application
- Patent Title: Electrophotographic toner and production method therefor
- Patent Title (中): 电子照相调色剂及其制备方法
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Application No.: US10929678Application Date: 2004-08-31
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Publication No.: US20050175920A1Publication Date: 2005-08-11
- Inventor: Yosuke Tsurumi , Hiroshi Nakazawa , Kazufumi Tomita , Shuji Sato , Akira Matsumoto
- Applicant: Yosuke Tsurumi , Hiroshi Nakazawa , Kazufumi Tomita , Shuji Sato , Akira Matsumoto
- Applicant Address: JP Tokyo
- Assignee: FUJI XEROX CO. LTD.
- Current Assignee: FUJI XEROX CO. LTD.
- Current Assignee Address: JP Tokyo
- Priority: JP2004-033214 20040210
- Main IPC: G03G9/08
- IPC: G03G9/08 ; G03G9/087

Abstract:
An electrophotographic toner contains a resin, a colorant and a releasing agent. The releasing agent has a solidifying point of from 79° C. to 109° C., and one peak in an endothermic curve measured by a differential scanning calorimeter. A difference between temperature to give a maximum endothermic peak of the releasing agent and an end-set temperature of the releasing agent is within 10° C. A melt viscosity of the releasing agent at 110° C. is in a range of from 4 mPa.s to 9 mPa.s. The releasing agent in one particle of the toner forms 3 or more domains. Domains having a ratio of a major axis to a minor axis which is in a range of from 5 to 15 occupy 90% or more by number based on the total number of domains.
Public/Granted literature
- US07300735B2 Electrophotographic toner and production method therefor Public/Granted day:2007-11-27
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