公开(公告)号：US20090035679A1

公开(公告)日：2009-02-05

申请号：US11817295

申请日：2005-06-24

申请人： Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Shinichiro Abe ,  Junko Nishiyama ,  Takashige Kasuya

发明人： Yoshihiro Ogawa ,  Yusuke Hasegawa ,  Shinichiro Abe ,  Junko Nishiyama ,  Takashige Kasuya

IPC分类号： G03G9/083

CPC分类号： G03G9/09725 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0833 ,  G03G9/0835 ,  G03G9/0836 ,  G03G9/08755 ,  G03G9/09716

摘要： A magnetic toner is disclosed having magnetic toner particles containing a binder resin and a magnetic iron oxide. The magnetic toner has a specific saturation magnetization and a specific residual magnetization in ascertain magnetic field. The binder resin includes a polyester component polymerized with an aromatic carboxylic acid titanium compound as a catalyst.

摘要翻译： 公开了一种磁性调色剂，其具有含有粘合剂树脂和磁性氧化铁的磁性调色剂颗粒。 磁性调色剂在确定磁场中具有特定的饱和磁化强度和特定的剩余磁化强度。 粘合剂树脂包括与芳族羧酸钛化合物作为催化剂聚合的聚酯组分。

公开(公告)号：US07288354B2

公开(公告)日：2007-10-30

申请号：US10902072

申请日：2004-07-30

申请人： Shuhei Moribe ,  Nobuyuki Okubo ,  Tsutomu Onuma ,  Hideto Iida ,  Koji Nishikawa ,  Takashige Kasuya

发明人： Shuhei Moribe ,  Nobuyuki Okubo ,  Tsutomu Onuma ,  Hideto Iida ,  Koji Nishikawa ,  Takashige Kasuya

IPC分类号： G03G9/00

CPC分类号： G03G9/08711 ,  G03G9/081 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/08708 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797

摘要： A toner is composed of toner particles including toner base particles containing at least a binder resin and a colorant, and inorganic fine particles. The toner base particles having a specific circle-equivalent diameter as measured with a flow type particle image analyzer have a specific average circularity. The toner base particles have a specific surface roughness as measured with a scanning probe microscope. The binder resin contains at least a vinyl resin having as partial structure a linkage formed by the reaction of a carboxyl group with an epoxy group.

摘要翻译： 调色剂由包含至少含有粘合剂树脂和着色剂的调色剂基础颗粒和无机细颗粒的调色剂颗粒组成。 用流动型粒子图像分析仪测量的具有特定圆当量直径的调色剂基础颗粒具有特定的平均圆形度。 调色剂基础颗粒具有用扫描探针显微镜测量的比表面粗糙度。 粘合剂树脂至少含有作为部分结构的由羧基与环氧基的反应形成的键的乙烯基树脂。

公开(公告)号：US20070202424A1

公开(公告)日：2007-08-30

申请号：US11742177

申请日：2007-04-30

申请人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Syuhei Moribe ,  Kouji Nishikawa

发明人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Syuhei Moribe ,  Kouji Nishikawa

IPC分类号： G03G9/083

CPC分类号： G03G9/0819 ,  G03G9/0827 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0835 ,  G03G9/09766

摘要： Provided is a magnetic toner comprising magnetic toner particles each comprising at least a binder resin and a magnetic iron oxide, the magnetic toner being excellent in developability and environmental stability, and being capable of reducing a toner consumption. A saturation magnetization σs and a remanent magnetization σr of the magnetic toner in a measured magnetic field of 795.8 kA/m are arranged in the range of 5 to 60 Am2/kg and in the range of 0.1 to 10.0 Am2/kg, respectively, and the binder resin having a polyester component polymerized by using a Ti chelate compound as a catalyst is used.

摘要翻译： 提供了一种磁性调色剂，其包含每个至少包含粘合剂树脂和磁性氧化铁的磁性调色剂颗粒，所述磁性调色剂的显影性和环境稳定性优异，并且能够降低调色剂消耗。 在795.8kA / m的测量磁场中的磁性调色剂的饱和磁化强度和残余磁化强度排列在5至60Am 2 / kg的范围内，并且在0.1至 使用10.0Am 2 / kg，并且使用具有通过使用Ti螯合化合物作为催化剂聚合的聚酯组分的粘合剂树脂。

公开(公告)号：US07097951B2

公开(公告)日：2006-08-29

申请号：US11212638

申请日：2005-08-29

申请人： Syuhei Moribe ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

发明人： Syuhei Moribe ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa

IPC分类号： G03G9/08

CPC分类号： G03G9/09725 ,  G03G5/04 ,  G03G5/0436 ,  G03G5/0514 ,  G03G9/0821 ,  G03G9/083 ,  G03G9/0835 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/08793 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/09708 ,  G03G9/09716 ,  G03G9/09783

摘要： A toner of the present invention comprises at least a binder resin comprising as a main component a polyester resin, a wax, and a colorant, in which in case of measuring a wettability of the toner with respect to a mixed solvent of methanol and water in terms of an optical transimittance at an optical wavelength of 780 nm, a methanol concentration of the mixed solvent is in a range of 45 to 65% by volume when an optical transmittance is 80% and 10%, respectively; a melt index (MI) is of 0.1 to 10 g/10 min at a temperature of 125° C. and a load of 5 kg; the toner comparises a resin component insoluble to tetrahydrofuran (THF insoluble component) in an amount of 5 to 40% by mass based on a mass of the binder resin; and the toner comprises a THF soluble component having a main peak in a molecular weight region of 3,000 to 20,000, and has a proportion of a component having a molecular weight of 10,000 or less in the THF soluble component is 50% by mass or more, according to a chromatogram of the THF soluble component measured by gel permeation chromatography. According to the toner of the present invention, it is possible to control lowering of an image density after leaving under a high temperature and high humidity environment, and a decline in the image density due to a charge-rise phenomenon upon low rate printing. Further, the toner has excellent fixing property and high temperature offset characteristic, and occurring of the end-offset is controlled.

摘要翻译： 本发明的调色剂至少包含粘合剂树脂，其包含作为主要成分的聚酯树脂，蜡和着色剂，其中在测量调色剂相对于甲醇和水的混合溶剂的润湿性的情况下 当光学透射率为80％和10％时，光波长为780nm时的混合溶剂的甲醇浓度为45〜65体积％。 在125℃的温度和5kg的负荷下，熔体指数（MI）为0.1至10g / 10min; 相对于粘合剂树脂的质量，该调色剂比较不溶于四氢呋喃的THF树脂成分（THF不溶成分）的量为5〜40质量％ 调色剂包含分子量为3000〜20,000的主峰的THF可溶成分，THF可溶成分中的分子量为10,000以下的成分的比例为50质量％以上， 根据通过凝胶渗透色谱测量的THF可溶性组分的色谱图。 根据本发明的调色剂，可以控制在高温和高湿度环境下离开之后的图像浓度的降低，以及在低速打印时由于充电 - 上升现象引起的图像浓度的下降。 此外，调色剂具有优异的定影性和高温偏移特性，并且控制了端部偏移的发生。

公开(公告)号：US06875549B2

公开(公告)日：2005-04-05

申请号：US10117232

申请日：2002-04-08

申请人： Katsuhisa Yamazaki ,  Hirohide Tanikawa ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa ,  Shuhei Moribe

发明人： Katsuhisa Yamazaki ,  Hirohide Tanikawa ,  Hiroshi Yusa ,  Takashige Kasuya ,  Yoshihiro Ogawa ,  Shuhei Moribe

IPC分类号： G03G9/08 ,  G03G9/083

CPC分类号： G03G9/081 ,  G03G9/0815 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0827 ,  G03G9/0833

摘要： A toner showing a high transferability and suitable for use in cleanerless image forming system is formed of toner particles comprising at least a binder resin and magnetic iron oxide. The toner is characterized by a specific circularity distribution relative to its weight-average particle size and a controlled degree of surface-exposed magnetic iron oxide providing an extract solution with hydrochloric acid showing an absorbance of 1.0-2.5 at a wavelength of 340 nm. The toner is suitably produced by a production system including a rotary mechanical pulverizer and a one-pass surface treatment apparatus for continuously applying a mechanical impact force to pulverized toner particles therein.

摘要翻译： 显示高转印性并适用于无清洁器成像系统的调色剂由至少包含粘合剂树脂和磁性氧化铁的调色剂颗粒形成。 调色剂的特征在于相对于其重均粒径具有特定的圆形度分布，并且受控程度的表面暴露的磁性氧化铁提供了在340nm的波长处显示吸光度为1.0-2.5的盐酸的提取溶液。 该调色剂通过包括旋转机械粉碎机和用于将粉碎的调色剂颗粒连续施加机械冲击力的单程表面处理设备的生产系统适当地制造。

公开(公告)号：US20050026089A1

公开(公告)日：2005-02-03

申请号：US10853144

申请日：2004-05-26

申请人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Kaori Hiratsuka

发明人： Yoshihiro Ogawa ,  Takashige Kasuya ,  Kaori Hiratsuka

IPC分类号： C09C1/30 ,  C09C1/36 ,  G03G9/097 ,  G03G9/08 ,  C01B33/12

CPC分类号： G03G9/09725 ,  B82Y30/00 ,  C01P2004/64 ,  C01P2006/12 ,  C09C1/3081 ,  C09C1/3684 ,  G03G9/09708 ,  G03G9/09716 ,  Y10T428/2995

摘要： Hydrophobic inorganic fine particles characterized by being a mixture of at least small-particle-diameter inorganic fine particles having an average primary particle diameter of 5 to 25 nm and having a maximum peak particle diameter of 20 nm or less and large-particle-diameter inorganic fine particles having an average primary particle diameter which is 1.5 to 100 times the average primary particle diameter of the small-particle-diameter inorganic fine particles; the mixture being a mixture having been treated in the same treating tank to subject both the small-particle-diameter inorganic fine particles and large-particle-diameter inorganic fine particles simultaneously to hydrophobic treatment.

摘要翻译： 疏水性无机细颗粒，其特征在于平均一次粒径为5〜25nm，最大峰值粒径为20nm以下的至少小粒径的无机微粒和大粒径的无机微粒的混合物 平均一次粒径为小粒径无机微粒的平均一次粒径的1.5〜100倍的微粒; 该混合物是在相同处理槽中处理的混合物，同时使小颗粒直径的无机细颗粒和大颗粒直径的无机细颗粒同时进行疏水处理。

公开(公告)号：US6002895A

公开(公告)日：1999-12-14

申请号：US892913

申请日：1997-07-15

申请人： Takashige Kasuya ,  Hiroyuki Suematsu ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

发明人： Takashige Kasuya ,  Hiroyuki Suematsu ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

IPC分类号： G03G9/083 ,  G03G9/087 ,  G03G21/16

CPC分类号： G03G9/0834 ,  G03G9/08795

摘要： A toner is comprised of a composition containing at least a polymer component and a charge control agent. The polymer component contains substantially no tetrahydrofuran (THF)-insoluble matter. The polymer component THF-soluble has a major peak and a minor peak in the specific molecular weight regions in gel permeation chromatography (GPC). The low molecular weight component and high molecular weight component of the polymer component, each of which shows the specific molecular weight region in GPC, have the specific acid values, respectively. The difference between the acid values is in the specific range.

摘要翻译： 调色剂由至少含有聚合物组分和电荷控制剂的组合物组成。 聚合物组分基本上不含四氢呋喃（THF） - 不溶物质。 在凝胶渗透色谱（GPC）中，可溶于THF的聚合物组分在特定分子量区域具有主峰和次峰。 聚合物组分的低分子量组分和高分子量组分分别具有特定的酸值，分别表示GPC中的特定分子量区域。 酸值之间的差异在特定范围内。

公开(公告)号：US5814429A

公开(公告)日：1998-09-29

申请号：US528532

申请日：1995-09-14

申请人： Hiroaki Kawakami ,  Yusuke Karami ,  Shinji Doi ,  Satoshi Matsunaga ,  Yasuhide Goseki ,  Takashige Kasuya ,  Masuo Yamazaki ,  Kiyoko Maeda

发明人： Hiroaki Kawakami ,  Yusuke Karami ,  Shinji Doi ,  Satoshi Matsunaga ,  Yasuhide Goseki ,  Takashige Kasuya ,  Masuo Yamazaki ,  Kiyoko Maeda

IPC分类号： G03G9/087 ,  G03G13/20

CPC分类号： G03G9/08782 ,  G03G9/08704 ,  G03G9/08755 ,  G03G9/08786 ,  G03G9/08795

摘要： A heat fixable toner comprises a binder resin and a release agent. The binder resin comprises a polyester resin, and the release agent comprises a graft-modified polyolefin. A recording medium containing a toner image of said heat fixable toner is heat-fixed by contacting the recording medium with a heater element through a film interposed therebetween. After the heat-fixing step, the film is peeled from the fixed toner image while the film surface temperature is higher than the endothermic peak temperature of the toner.

摘要翻译： 可热固定的调色剂包括粘合剂树脂和脱模剂。 粘合剂树脂包括聚酯树脂，脱模剂包含接枝改性的聚烯烃。 含有所述可热定影调色剂的调色剂图像的记录介质通过介于其间的膜与记录介质与加热器元件接触而进行热固定。 在热定影步骤之后，当薄膜表面温度高于调色剂的吸热峰值温度时，从定影调色剂图像上剥离薄膜。

公开(公告)号：US5663026A

公开(公告)日：1997-09-02

申请号：US619873

申请日：1996-03-20

申请人： Takashige Kasuya ,  Hiroyuki Suematsu ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

发明人： Takashige Kasuya ,  Hiroyuki Suematsu ,  Koichi Tomiyama ,  Hiroshi Yusa ,  Takakuni Kobori ,  Masaichiro Katada

IPC分类号： G03G9/08 ,  G03G9/083 ,  G03G9/09 ,  G03G9/097 ,  G03G15/09

CPC分类号： G03G9/09775 ,  G03G9/0819 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/0838 ,  G03G9/091 ,  G03G9/09783

摘要： A magnetic toner is formed from a binder resin and silicon-containing magnetic iron oxide particles. The magnetic toner has a weight-average particle size of at most 13.5 .mu.m, and the magnetic toner has a particle size distribution such that magnetic toner particles having a particle size of at least 12.7 .mu.m are contained in an amount of at most 50 wt. %. The magnetic iron oxide particles have a silicon content of 0.4-2.0 wt. % based on iron, and the magnetic iron oxide particles have an Fe/Si atomic ratio of 1.2-4.0 at the utmost surfaces thereof. Because of the use of such magnetic iron oxide particles having a specifically controlled overall and surface Si contents, the magnetic toner can show stable performances even after standing in a high humidity environment.

摘要翻译： 磁性调色剂由粘合剂树脂和含硅磁性氧化铁颗粒形成。 磁性调色剂具有至多13.5μm的重均粒径，并且磁性调色剂具有使得粒径至少为12.7μm的磁性调色剂颗粒的含量至多为50 重量 ％。 磁性氧化铁颗粒的硅含量为0.4-2.0重量％。 以铁为基准，磁性氧化铁粒子的最表面的Fe / Si原子比为1.2〜4.0。 由于使用具有特定控制的整体和表面Si含量的这种磁性氧化铁颗粒，因此即使在高湿度环境中放置之后，磁性调色剂也能显示出稳定的性能。