Invention Grant
- Patent Title: Electrostatic latent image developing toner
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Application No.: US15427196Application Date: 2017-02-08
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Publication No.: US09958799B2Publication Date: 2018-05-01
- Inventor: Toshiki Takemori , Yukinori Nakayama
- Applicant: KYOCERA Document Solutions Inc.
- Applicant Address: JP Osaka
- Assignee: KYOCERA Document Solutions Inc.
- Current Assignee: KYOCERA Document Solutions Inc.
- Current Assignee Address: JP Osaka
- Agency: Studebaker & Brackett PC
- Priority: JP2016-024301 20160212
- Main IPC: G03G9/087
- IPC: G03G9/087 ; G03G9/08 ; G03G9/09

Abstract:
An electrostatic latent image developing toner includes a plurality of toner particles each having: a sea-like domain substantially formed from a plurality of resins including at least a polyester resin containing an alcohol component having a carbon number of 2-6; and a plurality of island-like domains distributed in an island-like pattern in the sea-like domain. The island-like domains are substantially formed from a resin containing a nigrosine pigment. A dispersion diameter of the island-like domains is 0.1-1.0 μm. The polyester resin containing the alcohol component having a carbon number of 2-6 is contained in the sea-like domain in an amount of 5-50% by mass relative to a total amount of constituent resins (the plurality of resins). A ratio of an SP value of the resins forming the sea-like domain to an SP value of the resin forming the island-like domain is no greater than 0.98 or at least 1.20.
Public/Granted literature
- US20170235241A1 ELECTROSTATIC LATENT IMAGE DEVELOPING TONER Public/Granted day:2017-08-17
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