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    • 4. 发明授权
    • Toner
    • 爽肤水
    • US08778585B2
    • 2014-07-15
    • US13817782
    • 2011-09-12
    • Takashi MatsuiMichihisa MagomeTomohisa SanoShuichi HirokoYoshitaka SuzumuraShotaro Nomura
    • Takashi MatsuiMichihisa MagomeTomohisa SanoShuichi HirokoYoshitaka SuzumuraShotaro Nomura
    • G03G9/08G03G9/087
    • G03G9/08711G03G9/0806G03G9/0821G03G9/0827G03G9/08702G03G9/08782G03G9/08795G03G9/08797
    • A toner with good low-temperature fixability even in light-pressure type fixing units, which causes no contamination of fixing films and provides images having stable image densities and excellent image quality after long-term use. The toner includes a toner particle containing a binder resin, a coloring agent, a release agents (a) and (b) The release agent (a) is a monofunctional or bifunctional ester wax; the release agent (b) is a hydrocarbon wax; a solubility of the release agent (a) into the binder resin is higher than that of the release agent (b). When tetrahydrofuran-soluble components of the toner are subjected to GPC, a proportion of components having a molecular weight of 500 or less is 2.5 area % or less. When the tetrahydrofuran-soluble components at 25° C. are subjected to SEC-MALLS, a weight-average molecular weight Mw thereof is 5,000-100,000, and the Mw and the radius of gyration Rw thereof satisfy 5.0×10−4≦Rw/Mw≦1.0×10−2.
    • 即使在轻压型固定单元中也具有良好的低温定影性的调色剂,其不会造成定影膜的污染,并且在长期使用后提供具有稳定图像密度和优异图像质量的图像。 调色剂包括含有粘合剂树脂,着色剂,脱模剂(a)和(b)的调色剂颗粒。脱模剂(a)是单官能或双官能酯蜡; 脱模剂(b)是烃蜡; 脱模剂(a)在粘合剂树脂中的溶解度高于脱模剂(b)的溶解度。 当调色剂的四氢呋喃可溶成分进行GPC时,分子量为500以下的成分的比例为2.5面积%以下。 当25℃的四氢呋喃可溶组分进行SEC-MALLS时,其重均分子量Mw为5,000-100,000,Mw和其回转半径Rw满足5.0×10-4< Mw≦̸ 1.0×10-2。
    • 6. 发明申请
    • TONER
    • 托尼
    • US20130143154A1
    • 2013-06-06
    • US13817782
    • 2011-09-09
    • Takashi MatsuiMichihisa MagomeTomohisa SanoShuichi HirokoYoshitaka SuzumuraShotaro Nomura
    • Takashi MatsuiMichihisa MagomeTomohisa SanoShuichi HirokoYoshitaka SuzumuraShotaro Nomura
    • G03G9/087
    • G03G9/08711G03G9/0806G03G9/0821G03G9/0827G03G9/08702G03G9/08782G03G9/08795G03G9/08797
    • A toner with good low-temperature fixability even in light-pressure type fixing units, which causes no contamination of fixing films and provides images having stable image densities and excellent image quality after long-term use. The toner includes a toner particle containing a binder resin, a coloring agent, a release agents (a) and (b) The release agent (a) is a monofunctional or bifunctional ester wax; the release agent (b) is a hydrocarbon wax; a solubility of the release agent (a) into the binder resin is higher than that of the release agent (b). When tetrahydrofuran-soluble components of the toner are subjected to GPC, a proportion of components having a molecular weight of 500 or less is 2.5 area % or less. When the tetrahydrofuran-soluble components at 25° C. are subjected to SEC-MALLS, a weight-average molecular weight Mw thereof is 5,000-100,000, and the Mw and the radius of gyration Rw thereof satisfy 5.0×10−4≦Rw/Mw≦1.0×10−2.
    • 即使在轻压型固定单元中也具有良好的低温定影性的调色剂,其不会造成定影膜的污染,并且在长期使用后提供具有稳定图像密度和优异图像质量的图像。 调色剂包括含有粘合剂树脂,着色剂,脱模剂(a)和(b)的调色剂颗粒。脱模剂(a)是单官能或双官能酯蜡; 脱模剂(b)是烃蜡; 脱模剂(a)在粘合剂树脂中的溶解度高于脱模剂(b)的溶解度。 当调色剂的四氢呋喃可溶成分进行GPC时,分子量为500以下的成分的比例为2.5面积%以下。 当25℃的四氢呋喃可溶组分进行SEC-MALLS时,其重均分子量Mw为5,000-100,000,Mw和其回转半径Rw满足5.0×10-4.Rw / Mw@1.0×10-2。
    • 8. 发明授权
    • Toner
    • 爽肤水
    • US08614044B2
    • 2013-12-24
    • US13159172
    • 2011-06-13
    • Takashi MatsuiMichihisa MagomeYusuke HasegawaTomohisa SanoShuichi HirokoYoshitaka SuzumuraShotaro NomuraAtsuhiko Ohmori
    • Takashi MatsuiMichihisa MagomeYusuke HasegawaTomohisa SanoShuichi HirokoYoshitaka SuzumuraShotaro NomuraAtsuhiko Ohmori
    • G03G9/00
    • G03G9/0827G03G9/0806G03G9/0819G03G9/0825G03G9/08795G03G9/08797G03G9/09328
    • To provide a toner which can achieve both low-temperature fixing performance and dot reproducibility and further can obtain images on which any density non-uniformity has been kept from coming about, the toner has toner particles, each of the toner particles has a toner base particle containing a binder resin, a colorant and a release agent, and an inorganic fine powder; the toner having: (1) an average circularity of 0.960 or more; (2) a number-average molecular weight Mn(25° C.) of from 500 or more to 3,000 or less in measuring a tetrahydrofuran-soluble matter at 25° C. of the toner by SEC-MALLS; and (3) a value of Mn(135° C.)/Mn(25° C.) of from 25 or more to 50 or less which is the ratio of number-average molecular weight Mn(135° C.) in measuring an o-dichlorobenzene-soluble matter at 135° C. of the toner by SEC-MALLS to number-average molecular weight Mn(25° C.) in measuring a tetrahydrofuran-soluble matter at 25° C. of the toner by SEC-MALLS.
    • 为了提供能够实现低温定影性能和点再现性的调色剂,并且还可以获得不会发生任何密度不均匀的图像,调色剂具有调色剂颗粒,每个调色剂颗粒都具有调色剂基底 含有粘合剂树脂的颗粒,着色剂和脱模剂,以及无机细粉末; 调色剂具有:(1)平均圆形度为0.960以上; (2)通过SEC-MALLS测定调色剂的25℃下的四氢呋喃可溶物质中的数均分子量Mn(25℃)为500以上至3000以下; 和(3)在测量中数均分子量Mn(135℃)的比例为25以上至50以下的Mn(135℃)/ Mn(25℃)的值 通过SEC-MALLS将调色剂在135℃下的邻二氯苯可溶物质通过SEC-MALLS调节至数均分子量Mn(25℃),测定调色剂在25℃下的四氢呋喃可溶物质, 马尔斯