BINDER RESIN COMPOSITION FOR TONER

To provide a binder resin composition for a toner which is excellent in scratch resistance and glossiness of an image, and has good crushability, and a toner for electrostatic charge image development containing the binder resin composition.SOLUTION: There are provided a binder resin composition for...

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Bibliographische Detailangaben
Hauptverfasser: OKAUCHI NOBUAKI, KAMIYOSHI NOBUMICHI, SOMA HISATO
Format: Patent
Sprache:eng ; jpn
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Beschreibung
Zusammenfassung:To provide a binder resin composition for a toner which is excellent in scratch resistance and glossiness of an image, and has good crushability, and a toner for electrostatic charge image development containing the binder resin composition.SOLUTION: There are provided a binder resin composition for a toner that contains a crystalline polyester resin and an amorphous polyester resin, wherein the crystalline polyester resin is a polycondensate of a raw material monomer containing ethylene glycol, an aliphatic dicarboxylic acid-based compound having 12 or more and 16 or less carbon atoms, and an aliphatic monocarboxylic acid-based compound having 16 or more and 24 or less carbon atoms, and a content of the aliphatic monocarboxylic acid-based compound is 7 mol% or more and 20 mol% or less in the raw material monomer; and a toner for electrostatic charge image development which contains the binder resin composition for the toner and a coloring agent.SELECTED DRAWING: None 【課題】画像の耐擦過性と光沢性に優れ、また、良好な粉砕性を有するトナー用結着樹脂組成物及び該結着樹脂組成物を含有した静電荷像現像用トナーに関すること。【解決手段】結晶性ポリエステル樹脂と非晶質ポリエステル樹脂とを含有するトナー用結着樹脂組成物であって、前記結晶性ポリエステル樹脂が、エチレングリコール、炭素数12以上16以下の脂肪族ジカルボン酸系化合物、及び炭素数16以上24以下の脂肪族モノカルボン酸系化合物を含む原料モノマーの重縮合物であり、該脂肪族モノカルボン酸系化合物の含有量が、原料モノマー中、7モル%以上20モル%以下である、トナー用結着樹脂組成物、及び該トナー用結着樹脂組成物及び着色剤を含有する、静電荷像現像用トナー。【選択図】なし