TONER AND MANUFACTURING METHOD THEREFOR
To provide a toner which offers sufficient developability to suppress image defects such as fogging and development stripes in a long-life developing system that maintains low-temperature fixability.SOLUTION: A toner comprising toner particles containing a binder resin is provided, the toner being c...
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| Format: | Patent |
| Sprache: | eng ; jpn |
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| Zusammenfassung: | To provide a toner which offers sufficient developability to suppress image defects such as fogging and development stripes in a long-life developing system that maintains low-temperature fixability.SOLUTION: A toner comprising toner particles containing a binder resin is provided, the toner being characterized in that: a storage modulus at 70°C as obtained by a dynamic viscoelasticity measurement of the toner is in a range of 0.10 to 3.00 MPa, inclusive, and a surface storage modulus at 25°C and 150 μN load as obtained by a nano-indentation measurement of the toner is in a range of 2.80 to 4.50 GPa, inclusive.SELECTED DRAWING: None
【課題】低温定着性を維持しつつ長寿命な現像システムにおいて、カブリや現像スジといった画像弊害を抑制できる、十分な現像性を有するトナー。【解決手段】結着樹脂を有するトナー粒子を含有するトナーであって、該トナーの動的粘弾性測定において、７０℃での貯蔵弾性率が、０．１０ＭＰａ以上３．００ＭＰａ以下であり、トナーのナノインデンテーション測定において、２５℃、荷重１５０μＮでの表面貯蔵弾性率が、２．８０ＧＰａ以上４．５０ＧＰａ以下であることを特徴とするトナー。【選択図】なし |
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