公开(公告)号：US20060035163A1

公开(公告)日：2006-02-16

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.

公开(公告)号：US20050026060A1

公开(公告)日：2005-02-03

申请号：US10786050

申请日：2004-02-26

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： G03G9/08 ,  G03G9/083 ,  G03G9/087 ,  G03G9/097 ,  G03G9/00

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10.0Am 2的范围内 / 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：US06214509B1

公开(公告)日：2001-04-10

申请号：US09310949

申请日：1999-05-13

申请人： Takashige Kasuya ,  Tsutomu Kukimoto ,  Satoshi Yoshida ,  Hiroshi Yusa ,  Manabu Ohno ,  Tsuyoshi Takiguchi ,  Yuki Karaki ,  Satoshi Handa ,  Masanori Ito

发明人： Takashige Kasuya ,  Tsutomu Kukimoto ,  Satoshi Yoshida ,  Hiroshi Yusa ,  Manabu Ohno ,  Tsuyoshi Takiguchi ,  Yuki Karaki ,  Satoshi Handa ,  Masanori Ito

IPC分类号： G03G9097

CPC分类号： G03G9/09708 ,  G03G9/0819 ,  G03G9/09716

摘要： The objects of the present invention are to provide a toner excellent in transferability, little remaining on the photosensitive member and causing no defective image in roll-aided transfer (or at least such a phenomenon is well-controlled), and also to provide an image forming method using the same toner. The above objects are achieved when the toner contains a binder resin and colorant, inorganic fine particles, and a hydrotalcite compound shown by the formula: M1y12+M2y22+ . . . Mjyj2+L1x13+L2x23+ . . . Lkxk3+(OH)2.(X/n)An−.mH2O  (1) wherein 0

摘要翻译： 本发明的目的是提供一种转印性优异，在光敏元件上几乎没有残留的调色剂，并且不会在辊辅助转印中产生不良图像（或至少这种现象被良好控制），并且还提供图像 当调色剂含有粘合剂树脂和着色剂，无机细颗粒和下式所示的水滑石化合物时，实现了上述目的：其中0 <[X =（x1 + x2 + ... xk） ] <= 0.5; Y =（y1 + y2 + ... + yj）= 1-X; j和k分别为2以上的整数， M13 +，M23 +，。 。 。 和Mj2 +是彼此不同的二价金属离子; L13 +，L23 +。 。 。 并且Lk3 +是彼此不同的三价金属离子; An-是n价阴离子; 并且m> = 0），并且当使用上述调色剂的图像形成方法包括对图像载体进行充电的充电步骤; 在所述带电图像载体上形成静电潜像的潜像形成步骤; 显影步骤，用由调色剂载体承载的调色剂显影静电潜像，以在图像载体上形成调色剂图像; 转印步骤，其通过或不通过中间介质将图像载体上的调色剂图像转印到介质上; 以及将调色剂图像固定在介质上的固定步骤。

公开(公告)号：US5972553A

公开(公告)日：1999-10-26

申请号：US736937

申请日：1996-10-25

申请人： Masaichiro Katada ,  Takashige Kasuya ,  Takakuni Kobori

发明人： Masaichiro Katada ,  Takashige Kasuya ,  Takakuni Kobori

IPC分类号： G03G9/087 ,  G03G9/09 ,  G03G9/097

CPC分类号： G03G9/09783 ,  G03G9/08711 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/091

摘要： A toner for developing an electrostatic image is composed from a composition including: polymer components, a colorant, a wax and a charge-controlling agent. The polymer components are characterized by (a) containing substantially no THF (tetrahydrofuran)-insoluble content; (b) containing a THF-soluble content giving a GPC (gel permeation chromatography) chromatogram showing a main peak in a molecular weight region of 3.times.10.sup.3 -3.times.10.sup.4, and a sub-peak or shoulder in a molecular weight region of 1.times.10.sup.5 -3.times.10.sup.6, and (c) including a low-molecular weight polymer component having molecular weights of below 5.times.10.sup.4 on the GPC chromatogram and an acid value A.sub.VL, and a high-molecular weight polymer component having molecular weights of at least 5.times.10.sup.4 and an acid value A.sub.VH satisfying A.sub.VL >A.sub.VH. The wax has an acid value A.sub.VWax satisfying A.sub.VL >A.sub.VWax and A.sub.VWax >0 (mgKOH/g). The toner is characterized by a good combination of low-temperature fixability and anti-offset characteristic, a stable chargeability, and freeness from sleeve ghost phenomenon.

摘要翻译： 用于显影静电图像的调色剂由包括聚合物组分，着色剂，蜡和电荷控制剂的组合物组成。 聚合物组分的特征在于（a）基本上不含THF（四氢呋喃） - 不溶物含量; （b）含有THF可溶成分，得到GPC（凝胶渗透色谱）色谱图，其显示分子量范围为3×103-3×104的主峰，分子量区域为1×105-3×10-6的亚峰或肩峰，以及 （c）包括在GPC色谱图上分子量低于5×10 4的低分子量聚合物组分和酸值AVL，以及分子量至少为5×10 4的高分子量聚合物组分和满足AVL> AVH。 蜡的酸值AVWax满足AVL> AVWax和AVWax> 0（mgKOH / g）。 调色剂的特征在于低温定影性和抗胶印特性的良好组合，稳定的带电性和来自套筒重影现象的游离度。

公开(公告)号：US5558967A

公开(公告)日：1996-09-24

申请号：US332474

申请日：1994-10-31

申请人： Takayuki Nagatsuka ,  Takashige Kasuya ,  Tatsuya Nakamura ,  Makoto Kanbayashi ,  Tatsuhiko Chiba

发明人： Takayuki Nagatsuka ,  Takashige Kasuya ,  Tatsuya Nakamura ,  Makoto Kanbayashi ,  Tatsuhiko Chiba

IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G9/113

CPC分类号： G03G9/0806 ,  G03G9/0821 ,  G03G9/0825 ,  G03G9/08755 ,  G03G9/08782 ,  G03G9/1138

摘要： A toner and a two-component developer for developing electrostatic images are disclosed. The toner comprises toner particles and the two-component developer comprises the toner and a carrier. The toner particle has a two-layer structure of a core layer and a surface layer, produced by suspension polymerization. The core layer and surface layer are mainly comprised of a resin having a low softening point and a resin having a high softening point, respectively. In the surface layer, a polyester resin having a specific acid value and a specific molecular weight is included to impart an appropriate water absorption to the toner. Due to the appropriate water absorption and superior fluidity, the toner can achieve a speedy rise of charge to give electrostatic charges in a stable quantity over a long period of time, and it can give a high image density and images with superior fine-line reproduction and highlight reproduction.

摘要翻译： 公开了用于显影静电图像的调色剂和双组分显影剂。 调色剂包括调色剂颗粒，双组分显影剂包括调色剂和载体。 调色剂颗粒具有通过悬浮聚合制备的芯层和表面层的两层结构。 芯层和表面层主要由具有低软化点的树脂和具有高软化点的树脂组成。 在表面层中，包含具有特定酸值和特定分子量的聚酯树脂以赋予调色剂适当的吸水性。 由于适当的吸水性和优异的流动性，调色剂可以实现电荷的快速上升，从而在长时间内稳定地产生静电电荷，并且可以提供高图像密度和具有优良细线再现的图像 并突出重现。

公开(公告)号：US5485250A

公开(公告)日：1996-01-16

申请号：US289269

申请日：1994-08-11

申请人： Noboru Kashimura ,  Harumi Sakoh ,  Kazushige Nakamura ,  Shoji Amamiya ,  Takashige Kasuya ,  Haruyuki Tsuji ,  Masaaki Yamagami ,  Tatsuya Ikezue

发明人： Noboru Kashimura ,  Harumi Sakoh ,  Kazushige Nakamura ,  Shoji Amamiya ,  Takashige Kasuya ,  Haruyuki Tsuji ,  Masaaki Yamagami ,  Tatsuya Ikezue

IPC分类号： G03G5/05 ,  G03G5/147 ,  G03G5/00

CPC分类号： G03G5/0592 ,  G03G5/0539 ,  G03G5/0578 ,  G03G5/14726 ,  G03G5/14773 ,  G03G5/14791

摘要： An electrophotographic apparatus is disclosed which has an electrophotographic photosensitive member and a transfer device. The photosensitive member has a conductive support and a photosensitive layer, and further has a surface layer formed of a binder resin, fluorine atom- or silicon atom-containing compound particles incompatible with the binder resin, and a fluorine atom- or silicon atom-containing compound compatible with the binder resin. In the surface layer, the proportion of fluorine atoms and silicon atoms to carbon atoms, (F+Si)/C, as measured by X-ray photoelectron spectroscopy is 0.01 to 1.0. Additionally, the transfer device is a multiple-transfer device.

摘要翻译： 公开了一种具有电子照相感光构件和转印装置的电子照相装置。 感光构件具有导电性支持体和感光层，并且还具有由粘合剂树脂，与粘合剂树脂不相容的含氟原子或含硅原子的化合物颗粒以及含氟原子或硅原子形成的表面层 化合物与粘合剂树脂相容。 在表面层中，通过X射线光电子能谱测定的氟原子和硅原子与碳原子的比例（F + Si）/ C为0.01〜1.0。 此外，传送设备是多传送设备。

公开(公告)号：US5480759A

公开(公告)日：1996-01-02

申请号：US425355

申请日：1995-04-19

申请人： Takashige Kasuya ,  Noboru Kashimura ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Kohji Inaba

发明人： Takashige Kasuya ,  Noboru Kashimura ,  Tatsuya Nakamura ,  Tatsuhiko Chiba ,  Kohji Inaba

IPC分类号： G03G5/05 ,  G03G5/087 ,  G03G5/14 ,  G03G5/147 ,  G03G13/08 ,  G03G15/00 ,  G03G13/22 ,  G03G13/16

CPC分类号： G03G15/75 ,  G03G13/08 ,  G03G5/0514 ,  G03G5/0517 ,  G03G5/0539 ,  G03G5/0578 ,  G03G5/087 ,  G03G5/14704 ,  G03G5/14726 ,  G03G5/14773 ,  G03G5/0546 ,  G03G5/0564 ,  G03G5/142 ,  G03G5/14756

摘要： An electrophotographic toner showing a good fixability onto recording paper is constituted by at least a binder resin and a colorant, the binder resin comprising a resin component having a polar group, the binder resin having a molecular weight distribution according to gel permeation chromatography including a peak in a molecular weight region of 5.times.10.sup.3 -5.times.10.sup.4. The toner is used to develop an electrostatic image formed on a electrophotographic photosensitive member including at least an electroconductive support, a charge generation layer and a charge transport layer, and the resultant toner image is transferred onto a recording medium without difficulties such as occurrence of cracks on the photosensitive member or inferior transferability by using a photosensitive member having a surface layer containing a transition metal atom at 0.1-10 ppm. The surface of the photosensitive member may preferably show a fluorine atom/carbon atom (F/C) ratio or/and a silicon atom/carbon atom (Si/C) ratio, respectively, of 0.03-1.0 as measured by X-ray photoelectron spectroscopy.

摘要翻译： 显示在记录纸上的良好定影性的电子照相调色剂由至少粘合剂树脂和着色剂构成，粘合剂树脂包含具有极性基团的树脂组分，粘合剂树脂具有根据凝胶渗透色谱法的分子量分布，包括峰 在5×10 3〜5×10 4的分子量范围内。 调色剂用于显影形成在电子照相感光构件上的静电图像，其至少包括导电性支持体，电荷产生层和电荷输送层，并且将所得到的调色剂图像转印到记录介质上，没有发生裂纹的困难 通过使用具有含有0.1-10ppm的过渡金属原子的表面层的感光构件，在感光构件上具有较差的转印性。 感光构件的表面可以优选地表现出通过X射线光电子测量的0.03-1.0的氟原子/碳原子（F / C）比或/和硅原子/碳原子（Si / C）比 光谱学。

公开(公告)号：US08642237B2

公开(公告)日：2014-02-04

申请号：US13187009

申请日：2011-07-20

申请人： Atsushi Tani ,  Tetsuya Kinumatsu ,  Ayako Okamoto ,  Kenji Aoki ,  Shuntaro Watanabe ,  Takaaki Kaya ,  Takashige Kasuya

发明人： Atsushi Tani ,  Tetsuya Kinumatsu ,  Ayako Okamoto ,  Kenji Aoki ,  Shuntaro Watanabe ,  Takaaki Kaya ,  Takashige Kasuya

IPC分类号： G03G9/087

CPC分类号： G03G9/08755 ,  G03G9/0821 ,  G03G9/08764 ,  G03G9/08788 ,  G03G9/08795 ,  G03G9/08797

摘要： In differential scanning calorimetry of a toner, regarding a binder resin in the toner, (i) the peak temperature T10 of a maximum endothermic peak (temperature raising rate 10.0° C./min; P10) is 50° C. to 80° C. and the half-width W10 is 2.0° C. to 3.5° C. and (ii) W1, W10, and W20 satisfy that W1/W10 is 0.20 to 1.00 and W20/W10 is 1.00 to 1.50, where the half-width of a maximum endothermic peak (temperature raising rate of 1.0° C./min; P1) is represented by W1 (° C.) and the half-width of a maximum endothermic peak (temperature raising rate of 20.0° C./min; P20) is represented by W20 (° C.).

摘要翻译： 在调色剂的差示扫描量热法中，关于调色剂中的粘合剂树脂，（i）最大吸热峰（升温速度10.0℃/分钟; P10）的峰值温度T10为50℃至80℃ ，并且半宽W10为2.0〜3.5℃，（ii）W1，W10，W20满足W1 / W10为0.20〜1.00，W20 / W10为1.00〜1.50，其中半宽 的最大吸热峰（升温速度为1.0℃/分钟; P1）由W1（℃）表示，最大吸热峰的半峰值（升温速度为20.0℃/分钟; P20）由W20（℃）表示。

公开(公告)号：US20130266897A1

公开(公告)日：2013-10-10

申请号：US13990740

申请日：2011-11-21

申请人： Kenji Aoki ,  Shuntaro Watanabe ,  Takaaki Kaya ,  Ayako Okamoto ,  Tetsuya Kinumatsu ,  Atsushi Tani ,  Takashige Kasuya

发明人： Kenji Aoki ,  Shuntaro Watanabe ,  Takaaki Kaya ,  Ayako Okamoto ,  Tetsuya Kinumatsu ,  Atsushi Tani ,  Takashige Kasuya

IPC分类号： G03G9/08

CPC分类号： G03G9/0804 ,  G03G9/0815 ,  G03G9/08755 ,  G03G9/08764 ,  G03G9/08771 ,  G03G9/08788 ,  G03G9/08797

摘要： The present invention provides a toner excellent in low-temperature fixability and also excellent in heat-resistant storage property, offset resistance, and durability. In a process for producing a toner containing toner particles by emulsion aggregation, each toner particle includes a binder resin of which a main component is a block polymer having a crystal structure, a colorant, and a release agent; the binder resin includes polyester as a main component; the rate of a portion capable of forming a crystal structure to the binder resin is 50 to 80 mass %; a peak temperature Tp of a maximum endothermic peak attributed to the binder resin is 50 to 80° C. in endothermic amount measurement of the toner with a differential scanning calorimeter (DSC); and fused particles are heated at a heating temperature t (° C.) satisfying Tp′−15.0≦t≦Tp′−5.0 for at least 0.5 hr.

摘要翻译： 本发明提供了一种低温定影性优异的调色剂，耐热储存性，耐偏移性和耐久性优异的调色剂。 在通过乳液聚集制造含有调色剂颗粒的调色剂的方法中，每个调色剂颗粒包括其主要成分是具有晶体结构的嵌段聚合物的粘合剂树脂，着色剂和脱模剂; 粘合剂树脂包括聚酯作为主要成分; 能够形成结晶结构部分的粘合剂树脂的比例为50〜80质量％。 使用差示扫描量热计（DSC）的调色剂的吸热量测定中，归因于粘合剂树脂的最大吸热峰的峰值温度Tp为50〜80℃。 并将熔融颗粒在满足Tp'-15.0 @ t @ Tp'-5.0的加热温度t（℃）下加热至少0.5小时。

公开(公告)号：US08084174B2

公开(公告)日：2011-12-27

申请号：US12569145

申请日：2009-09-29

申请人： Yusuke Hasegawa ,  Yoshihiro Ogawa ,  Kouji Nishikawa ,  Kentarou Kamae ,  Takashige Kasuya

发明人： Yusuke Hasegawa ,  Yoshihiro Ogawa ,  Kouji Nishikawa ,  Kentarou Kamae ,  Takashige Kasuya

IPC分类号： G03G9/00

CPC分类号： G03G9/08791 ,  G03G9/0823 ,  G03G9/0833 ,  G03G9/0834 ,  G03G9/0836 ,  G03G9/0837 ,  G03G9/08755

摘要： An object of the present invention is to provide a toner excellent in ability to prevent electrostatic offset and fixation tailing. Provided is a toner including toner particles each containing at least a binder resin, a wax, and a magnetic iron oxide, and inorganic fine particles, in which the magnetic iron oxide contains at least a Ti component, an Al component, an Si component, and an Fe component; and the each component has some particular characteristics.

摘要翻译： 本发明的目的是提供一种防止静电胶印和定影拖尾的能力优良的调色剂。 提供一种调色剂，其包含至少含有粘合剂树脂，蜡和磁性氧化铁的调色剂颗粒和无机细颗粒，其中磁性氧化铁至少含有Ti组分，Al组分，Si组分， 和Fe成分; 并且每个组件具有一些特定的特征。