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    Toner for developing electrostatic image and image forming method
    4.
    发明授权
    Toner for developing electrostatic image and image forming method 失效
    用于显影静电图像和图像形成方法的调色剂

    公开(公告)号：US5447813A

    公开(公告)日：1995-09-05

    申请号：US352748

    申请日：1994-12-02

    申请人： Kazuyoshi Hagiwara ,  Toshiaki Nakahara ,  Minoru Shimojo ,  Masami Fujimoto ,  Kiyoshi Mizoe

    发明人： Kazuyoshi Hagiwara ,  Toshiaki Nakahara ,  Minoru Shimojo ,  Masami Fujimoto ,  Kiyoshi Mizoe

    IPC分类号： G03G9/087 ,  G03G9/083

    CPC分类号： G03G9/08706 ,  G03G9/08702 ,  G03G9/08711

    摘要： A toner for developing an electrostatic image is composed by a binder resin, and a magnetic material and/or a colorant. The binder resin (a) comprises a styrene resin polymerized in the presence of a poly-functional polymerization initiator, (b) provides a molecular weight distribution on a GPC chromatogram showing a maximum (P1) in a molecular weight range of 3.5.times.10.sup.3 -5.times.10.sup.4 and a maximum (P2) or shoulder in a molecular weight range of at least 1.times.10.sup.5, and (c) contains 15 wt. % or less of a resin component in a molecular weight range of at most 3.times.10.sup.3. Further the toner contains at most 100 ppm of styrene and benzaldehyde.

    摘要翻译： 用于显影静电图像的调色剂由粘合剂树脂，磁性材料和/或着色剂组成。 粘合剂树脂（a）包括在多官能聚合引发剂存在下聚合的苯乙烯树脂，（b）提供在GPC色谱图上的分子量分布，其显示分子量范围为3.5×103-3×104的最大值（P1） 和至少1×10 5的分子量范围内的最大（P2）或肩峰，和（c）含有15wt。 分子量范围在3×10 3以下的树脂成分的％以下。 此外，调色剂含有至多100ppm的苯乙烯和苯甲醛。

    Image forming method, image forming apparatus and apparatus unit
    5.
    发明授权
    Image forming method, image forming apparatus and apparatus unit 失效
    图像形成方法，图像形成装置和装置单元

    公开(公告)号：US5436701A

    公开(公告)日：1995-07-25

    申请号：US341930

    申请日：1994-11-16

    申请人： Minoru Shimojo ,  Toshiaki Nakahara ,  Kazuyoshi Hagiwara ,  Masami Fujimoto ,  Kiyoshi Mizoe

    发明人： Minoru Shimojo ,  Toshiaki Nakahara ,  Kazuyoshi Hagiwara ,  Masami Fujimoto ,  Kiyoshi Mizoe

    IPC分类号： G03G5/05 ,  G03G5/14 ,  G03G9/083 ,  G03G9/087

    CPC分类号： G03G9/083 ,  G03G9/08704 ,  G03G5/0532 ,  G03G5/14 ,  G03G9/08791

    摘要： The present invention relates to an electrophotographic image forming method characterized in using a photosensitive member having an organic photoconductive layer and fluorine-containing resin particles in the surface, a contact charging means being in contact with the photosensitive member to electrostatically charge it, a contact transfer means being in contact with the photosensitive member to transfer the developed image to the transfer medium;wherein the toner to be used for developing the latent image is a magnetic toner comprising at least a magnetic material and a binder resin, wherein the binder resin contains a polymer synthesized from vinyl monomer in the presence of an aromatic organic solvent in an amount of 50 parts by weight or more on the basis of 100 parts of the binder resin, and the amount of the residual aromatic organic solvent in the magnetic toner is 500 ppm by weight or less.

    摘要翻译： 本发明涉及一种电子照相成像方法，其特征在于在表面上使用具有有机光电导层和含氟树脂颗粒的感光构件，接触充电装置与感光构件接触以对其进行静电充电，接触转印 意指与感光构件接触以将显影图像转印到转印介质上; 其中用于显影潜像的调色剂是至少包含磁性材料和粘合剂树脂的磁性调色剂，其中所述粘合剂树脂含有由乙烯基单体在芳族有机溶剂存在下合成的聚合物，其量为50 基于100份粘合剂树脂重量份或更多份，并且磁性调色剂中残留芳族有机溶剂的量为500重量ppm以下。

    Toner with wax component for developing electrostatic image
    6.
    发明授权
    Toner with wax component for developing electrostatic image 失效
    具有用于显影静电图像的蜡组分的调色剂

    公开(公告)号：US5605778A

    公开(公告)日：1997-02-25

    申请号：US627112

    申请日：1996-04-03

    申请人： Tsutomu Onuma ,  Satoshi Matsunaga ,  Manabu Ohno ,  Minoru Shimojo

    发明人： Tsutomu Onuma ,  Satoshi Matsunaga ,  Manabu Ohno ,  Minoru Shimojo

    IPC分类号： G03G9/087 ,  G03G9/097

    CPC分类号： G03G9/08782 ,  G03G9/08797

    摘要： A toner for developing electrostatic images is prepared from a binder resin, a colorant or magnetic material, and a wax component. The toner is provided with improved low-temperature fixability anti-electrostatic offset characteristic, anti-blocking characteristic and anti-offset characteristic by controlling the thermal characteristic of the wax component so as to provide a DSC (differential scanning colorimeter) curve on temperature increase, showing a minimum onset temperature of heat absorption of at least 50.degree. C. and at least two heat absorption peaks including a largest and a second largest peaks, different from each other in peak temperature by at least 15.degree. C., wherein low-temperature heat absorption peak P.sub.1 of the two peaks shows a half-value width of at most 20.degree. C. and a higher-temperature heat absorption peak P.sub.2 shows a half-value width of at most 20.degree. C., and wherein the peak P.sub.1 shows a higher half-width temperature and the peak P.sub.2 shows a lower half-width temperature different form the higher half-width temperature of the peak P.sub.1 by at least 5.degree. C.

    摘要翻译： 用于静电图像显影的调色剂由粘合剂树脂，着色剂或磁性材料和蜡组分制备。 通过控制蜡组分的热特性，调色剂具有改进的低温定影性抗静电偏移特性，抗粘连特性和防偏移特性，从而提供升温时的DSC（差示扫描色度计）曲线， 显示出至少50℃的最小起始吸热温度和至少两个包括最大和第二最大峰的吸热峰，峰值温度彼此不同，至少15℃，其中低温 两个峰的吸热峰P1表现出至多20℃的半值宽度，较高温度的吸收峰P2显示​​出最多20℃的半值宽度，其中峰P1显示 较高的半峰宽温度，峰P2表示峰值P1的较高半峰宽温度至少5℃不同的较低半宽度温度。

    Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship
    8.
    发明授权
    Process for producing belt-shaped member from a die-extruded film having a film thickness, die gap relationship 有权
    用于从具有膜厚度，模具间隙关系的模压挤出薄膜制造带状构件的方法

    公开(公告)号：US06592803B2

    公开(公告)日：2003-07-15

    申请号：US09750165

    申请日：2000-12-29

    申请人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    发明人： Akihiko Nakazawa ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe ,  Takashi Kusaba ,  Hidekazu Matsuda

    IPC分类号： B29C4904

    CPC分类号： G03G15/65 ,  B29C47/0023 ,  B29C47/065 ,  B29C47/26 ,  B29C47/263 ,  B29K2995/0005 ,  B29L2009/00 ,  B29L2031/7092 ,  G03G15/162 ,  G03G2215/00683 ,  Y10T428/24802

    摘要： A process produces a belt-shaped member to be used in an image-forming apparatus is disclosed in which a toner image held on a latent-image-bearing member is electrostatically transferred under application of a voltage via the belt-shaped transfer member. The process includes the steps of melt-extruding a material containing a thermoplastic resin, from a circular die into a cylindrical film; forming the resultant cylindrical film by stretching in such a way that the cylindrical film comes to have a thickness smaller than the die gap of the circular die; and cutting the cylindrical film thus formed, into a seamless belt having a thickness of from 40 &mgr;m to 300 &mgr;m and a modulus in tension of 600 MPa or higher. The stretched cylindrical film is formed to have a thickness not larger than ⅓ of the die gap of the circular die. A belt-shaped transfer member may be produced by the above-described process. The so-produced belt-shaped transfer member is usable as a transfer belt in an image-forming apparatus in which a toner image held on a latent-image-bearing member is electrostatically transferred under application of a voltage via the belt-shaped transfer member.

    摘要翻译： 公开了一种在图像形成装置中使用的带状构件，其中保持在潜像承载构件上的调色剂图像经由带状转印构件施加电压而被静电转印。 该方法包括将包含热塑性树脂的材料从圆形模头熔融挤出成圆筒形薄片的步骤; 通过使圆柱形薄膜的厚度比圆形模具的模具间隙小的方式进行拉伸来形成所得到的圆柱形薄膜; 并将由此形成的圆筒形薄膜切割成厚度为40μm至300μm，张力模量为600MPa或更高的无缝带。 拉伸的圆筒形薄膜形成为不大于圆形模头的模具间隙的1/3的厚度。 可以通过上述方法制造带状转印构件。 所生产的带状转印部件可用作图像形成装置中的转印带，其中保持在潜像承载部件上的调色剂图像经由带状转印部件施加电压而静电转印 。

    Intermediate transfer member and electrophotographic apparatus including same
    9.
    发明授权
    Intermediate transfer member and electrophotographic apparatus including same 失效
    中间转印部件和包括其的电子照相设备

    公开(公告)号：US6144830A

    公开(公告)日：2000-11-07

    申请号：US780773

    申请日：1997-01-09

    申请人： Takashi Kusaba ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akihiko Nakazawa ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe

    发明人： Takashi Kusaba ,  Hiroyuki Kobayashi ,  Minoru Shimojo ,  Akihiko Nakazawa ,  Akira Shimada ,  Atsushi Tanaka ,  Tsunenori Ashibe

    IPC分类号： G03G15/16 ,  G03G15/00

    CPC分类号： G03G15/162

    摘要： An intermediate transfer member is formed by at least a base layer and a surface layer. The base layer is formed by epichlorohydrin rubber and acrylonitrile-butadiene rubber mixed in a certain weight ratio (preferably 1:9 to 9:1). The surface layer is formed by urethane resin or elastomer and a fluorine-containing compound powder. The fluorine-containing compound powder may preferably be contained in an amount of 20-80 wt. % based on the surface layer. The intermediate transfer member is suitable for full-color image formation by electrophotography and is effective in improving a transfer performance and providing clear images without causing transfer failure even in repetitive use for a long period.

    摘要翻译： 中间转印部件至少由基底层和表面层形成。 基层由表氯醇橡胶和以一定重量比（优选1:9至9:1）混合的丙烯腈 - 丁二烯橡胶形成。 表层由聚氨酯树脂或弹性体和含氟化合物粉末形成。 含氟化合物粉末的含量优选为20〜80重量％。 基于表面层的％。 中间转印部件适用于通过电子照相法进行全色图像形成，并且即使在长时间的重复使用中也能有效地提高转印性能并提供清晰的图像而不引起转印失败。