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Title:
トナー及び現像剤
Document Type and Number:
Japanese Patent JP5849651
Kind Code:
B2
Abstract:
A toner including: a binder resin component; crystal nucleating agent; releasing agent; and colorant, wherein the binder resin component contains a crystalline polyester resin and a non-crystalline polyester resin, the crystal nucleating agent is at least one of an aliphatic ester compound and an aliphatic amide compound each having a melting point of 60° C. or higher but lower than 150° C., and wherein the toner satisfies Expressions (I) and (II): Tc>Tp+10Expression (I) Tm>Tp+2Expression (II) where Tp denotes lowest exothermic peak temperature [° C.] in 0° C. to 200° C. in DSC curve obtained DSC of the crystalline polyester resin, Tc denotes lowest exothermic peak temperature [° C.] in 0° C. to 200° C. in DSC curve obtained DSC of the crystal nucleating agent, and Tm denotes lowest exothermic peak temperature [° C.] in 0° C. to 200° C. in DSC curve through DSC of the mixture of the crystalline polyester resin and the crystal nucleating agent.

Inventors:
Tsuyoshi Sugimoto
Hiroshi Yamashita
Daisuke Asahina
Masaki Watanabe
Yoshiyuki Sekiguchi
High Rintaro Hashi
Application Number:
JP2011260175A
Publication Date:
January 27, 2016
Filing Date:
November 29, 2011
Export Citation:
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Assignee:
株式会社リコー
International Classes:
G03G9/08; G03G9/087
Domestic Patent References:
JP2009020269A
JP2007065620A
JP2006113473A
JP2010217617A
JP2007241241A
Attorney, Agent or Firm:
Chieko Tateno