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公开(公告)号：US5702858A
公开(公告)日：1997-12-30
申请号：US679130
申请日：1996-07-12
CPC分类号： G03G15/1605 , G03G9/09708 , G03G9/09716
摘要： Toner used for electrophotographic development includes additives such as inorganic fine particles, having a particular particle diameter and specific surface area, and hydrophobic silica having a particular specific surface area and surface treatment, so that the toner can provide images of high quality without generating photoconductor filming. The toner is applied to the electrophotographic method including the developing step of forming electrostatic latent images on a photoconductor containing a stationary magnet, magnetically attracting the toner to the surface of the photoconductor in a toner sump, and collecting toner at a non-image section by an electrode roller; the transferring step of transferring the toner to transfer paper; the cleaning step of removing residual toner left on the photoconductor in the transferring step; and the recycling step of recycling the residual toner. Toner used for an electrophotographic method using an intermediate transfer member includes additives such as inorganic fine particles, having a particular particle diameter and specific surface area, arid hydrophobic silica having a particular specific surface area and surface treatment, so that the toner can provide images of high quality and high transfer efficiency without generating photoconductor and intermediate transfer member filming.
摘要翻译： 用于电子照相显影的调色剂包括具有特定粒径和比表面积的添加剂如无机细颗粒，以及具有特定比表面积和表面处理的疏水性二氧化硅，使得调色剂可以提供高质量的图像而不产生感光膜成膜 。 将调色剂应用于电子照相方法，其包括在含有固定磁体的感光体上形成静电潜像的显影步骤，将调色剂磁性地吸引到调色剂贮槽中的感光体的表面，并将非图像部分的调色剂收集在非图像部分 电极辊; 将调色剂转印到转印纸上的转印步骤; 在转印步骤中去除留在感光体上的残留调色剂的清洁步骤; 以及再循环残余调色剂的再循环步骤。 用于使用中间转印部件的电子照相方法的调色剂包括具有特定粒径和比表面积的添加剂，例如具有特定比表面积的疏水性二氧化硅和表面处理的添加剂，使得调色剂可以提供 高质量和高转印效率，而不产生感光体和中间转印部件成膜。
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2.发明授权Reversal electrophotographic developing method employing recyclable magnetic toner 失效使用可回收磁性调色剂的反转电子显影方法
公开(公告)号：US5985506A
公开(公告)日：1999-11-16
申请号：US653014
申请日：1996-05-24
申请人： Yasuhito Yuasa , Akinori Toyoda , Noriaki Hirota
发明人： Yasuhito Yuasa , Akinori Toyoda , Noriaki Hirota
CPC分类号： G03G15/751 , G03G15/0921 , G03G9/0815 , G03G9/0819 , G03G9/0821 , G03G9/083 , G03G9/0837 , G03G9/0839 , G03G9/09725 , G03G2215/0621 , G03G2215/0639 , G03G2221/0005 , Y10S430/104
摘要： A magnetic toner for use in electrophotographic development which can be endowed with high performance by subjecting it to surface treatment with hot air in its dispersed state. The magnetic toner is used in an electrophotographic system including a development process in which an electrostatic latent image is formed by using a photoconductive drum having a stationary magnet therein, and thereafter the magnetic toner is sucked in a toner sump by magnetic force, whereby non-image area toner is recovered by an electrode roller, and the electrophotographic system including a recycle process of the residual toner. The magnetic toner is capable of realizing high-quality image development and stable recycle of residual toner by subjecting the magnetic toner to surface treatment with hot air.
摘要翻译： 一种用于电子照相显影的磁性调色剂，可以通过对其分散状态的热空气进行表面处理而赋予高性能。 磁性调色剂用于包括通过使用其中具有固定磁体的感光鼓形成静电潜像的显影方法的电子照相系统，然后磁性调色剂通过磁力吸入调色剂贮槽中， 图像区域调色剂由电极辊回收，并且电子照相系统包括残留调色剂的再循环过程。 磁性调色剂能够通过使磁性调色剂用热空气进行表面处理来实现高质量的图像显影和残留调色剂的稳定再循环。
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公开(公告)号：US5561019A
公开(公告)日：1996-10-01
申请号：US419988
申请日：1995-04-11
IPC分类号： G03G9/083 , G03G9/097 , G03G15/095 , G03G15/16
CPC分类号： G03G15/1605 , G03G15/095 , G03G9/09708 , G03G9/09716 , G03G9/083 , G03G9/0838
摘要： Magnetic toner used for electrophotographic development includes additives such as inorganic fine particles, having a particular particle diameter and specific surface area, and hydrophobic silica having a particular specific surface area and surface treatment, so that the magnetic toner can provide images of high quality without generating photoconductor filming. The magnetic toner is applied to the electrophotographic method including the developing step of forming electrostatic latent images on a photoconductor containing a stationary magnet, magnetically attracting the magnetic toner to the surface of the photoconductor in a toner sump, and collecting toner at a non-image section by an electrode roller; the transferring step of transferring the toner to transfer paper; the cleaning step of removing residual magnetic toner left on the photoconductor in the transferring step; and the recycling step of recycling the residual magnetic toner.
摘要翻译： 用于电子照相显影的磁性调色剂包括具有特定粒径和比表面积的添加剂如无机细颗粒，以及具有特定比表面积和表面处理的疏水性二氧化硅，使得磁性调色剂可以提供高品质图像而不产生 光电导体成像。 将磁性调色剂应用于电子照相方法，包括在含有固定磁体的感光体上形成静电潜像的显影步骤，将磁性调色剂磁性吸引到调色剂槽中的感光体的表面，并以非图像收集调色剂 通过电极辊; 将调色剂转印到转印纸上的转印步骤; 在转印步骤中去除留在感光体上的残留磁性调色剂的清洗步骤; 以及再循环剩余磁性调色剂的再循环步骤。
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公开(公告)号：US07063929B2
公开(公告)日：2006-06-20
申请号：US10421849
申请日：2003-04-24
申请人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
发明人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
IPC分类号： G03G9/087
CPC分类号： G03G9/081 , G03G9/0819 , G03G9/0821 , G03G9/0833 , G03G9/0834 , G03G9/0835 , G03G9/0836 , G03G9/0838 , G03G9/08704 , G03G9/08728 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G9/09716 , G03G9/09725
摘要： In an electrophotographic apparatus, which forms a color image by transferring a plurality of toner images having different colors onto an image-receiving sheet so as to be stacked and fixed thereon, even in the case of carrying out an oil-less fixing process and allowing the process speed to vary within wide range, the present invention provides a binder resin, toner and an electrophotographic apparatus which make it possible to achieve both superior fixing property and anti-offset property, and consequently to form a color image with high color reproducibility and high quality. In the present invention, a toner comprising a molecular weight maximum peak in a range of molecular weights from 2×103 to 3×104 in molecular weight distribution of GPC chromatogram, and a molecular weight maximum peak or shoulder in a range from 3×104 to 1×106, wherein said molecular weight maximum peak or shoulder located on a range of molecular weights from 3×104 to 1×106 is obtained by kneading a toner composition containing a specific binder resin containing a high molecular weight component at not less than a specific amount so that the high molecular weight component of the binder is converted into a low molecular weight component by thermal or mechanical energy exerted at the time of kneading, is provided.
摘要翻译： 在通过将具有不同颜色的多个调色剂图像转印到图像接收片材上以便堆叠和固定在其上而形成彩色图像的电子照相设备中，即使在进行无油定影处理并允许 工艺速度在宽范围内变化，本发明提供了一种粘合剂树脂，调色剂和电子照相设备，其可以实现优异的定影性和抗偏移性，从而形成具有高色彩再现性的彩色图像， 高质量。 在本发明中，在GPC色谱图的分子量分布中分子量为2×10 3〜3×10 4分子范围内的分子量最大峰的调色剂和分子量 在3×10 4至1×10 6范围内的重量最大峰值或肩峰，其中所述分子量最大峰或肩位于分子量范围为3×10 4 通过将包含高分子量组分的特定粘合剂树脂的调色剂组合物捏合至特定量，以使粘合剂的高分子量组分为 提供了通过在捏合时施加的热或机械能将其转化成低分子量组分。
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公开(公告)号：US06733945B2
公开(公告)日：2004-05-11
申请号：US10435922
申请日：2003-05-12
IPC分类号： G03G1316
CPC分类号： G03G9/08782 , G03G9/0819 , G03G9/08795 , G03G9/08797 , G03G9/097 , G03G9/09708 , G03G9/09716 , G03G9/09725 , G03G9/09783 , G03G9/09791 , G03G9/10
摘要： Toner of the present invention at least includes binder resin, a colorant, and an external additive, wherein a loss modulus G″t (frequency: 10 rad/s) of the toner at 170° C. satisfies 100≦G″t≦5000 (Pa), a storage modulus G′t (frequency: 10 rad/s) of the toner at 190° C. satisfies 10≦G′t≦3000 (Pa), and the toner contains 5 to 50% by number of toner particles with a size of 2×10−6 to 5×10−6 m in size distribution of the toner.
摘要翻译： 本发明的调色剂至少包括粘合剂树脂，着色剂和外部添加剂，其中调色剂在170℃的损耗模量G't（频率：10rad / s）满足100≤G' 调色剂在190℃下的储能模量G't（频率：10rad / s）满足10≤G't≤3000（Pa），调色剂含有5〜 调色剂尺寸分布中尺寸为2×10 -6至5×10 -6μm的调色剂颗粒数量为50％。
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公开(公告)号：US06593051B1
公开(公告)日：2003-07-15
申请号：US09460654
申请日：1999-12-14
IPC分类号： G03G9087
CPC分类号： G03G9/08782 , G03G9/0819 , G03G9/08795 , G03G9/08797 , G03G9/097 , G03G9/09708 , G03G9/09716 , G03G9/09725 , G03G9/09783 , G03G9/09791 , G03G9/10
摘要： Toner of the present invention at least includes binder resin, a colorant, and an external additive, wherein a loss modulus G″t (frequency: 10 rad/s) of the toner at 170° C. satisfies 100≦G″t≦5000 (Pa), a storage modulus G′t (frequency: 10 rad/s) of the toner at 190° C. satisfies 10≦G′t≦3000 (Pa), and the toner contains 5 to 50% by number of toner particles with a size of 2×10−6 to 5×10−6 m in size distribution of the toner.
摘要翻译： 本发明的调色剂至少包括粘合剂树脂，着色剂和外部添加剂，其中调色剂在170℃的损耗模量G't（频率：10rad / s）满足100≤G' 调色剂在190℃下的储能模量G't（频率：10rad / s）满足10≤G't≤3000（Pa），调色剂含有5〜 调色剂尺寸分布中尺寸为2×10-6至5×10 -6 m的调色剂颗粒数量为50％。
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公开(公告)号：US20050053858A1
公开(公告)日：2005-03-10
申请号：US10421849
申请日：2003-04-24
申请人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
发明人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
IPC分类号： G03G9/087
CPC分类号： G03G9/081 , G03G9/0819 , G03G9/0821 , G03G9/0833 , G03G9/0834 , G03G9/0835 , G03G9/0836 , G03G9/0838 , G03G9/08704 , G03G9/08728 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G9/09716 , G03G9/09725
摘要： In an electrophotographic apparatus, which forms a color image by transferring a plurality of toner images having different colors onto an image-receiving sheet so as to be stacked and fixed thereon, even in the case of carrying out an oil-less fixing process and allowing the process speed to vary within wide range, the present invention provides a binder resin, toner and an electrophotographic apparatus which make it possible to achieve both superior fixing property and anti-offset property, and consequently to form a color image with high color reproducibility and high quality. In the present invention, a toner comprising a molecular weight maximum peak in a range of molecular weights from 2×103 to 3×104 in molecular weight distribution of GPC chromatogram, and a molecular weight maximum peak or shoulder in a range from 3×104 to 1×106, wherein said molecular weight maximum peak or shoulder located on a range of molecular weights from 3×104 to 1×106 is obtained by kneading a toner composition containing a specific binder resin containing a high molecular weight component at not less than a specific amount so that the high molecular weight component of the binder is converted into a low molecular weight component by thermal or mechanical energy exerted at the time of kneading, is provided.
摘要翻译： 在通过将具有不同颜色的多个调色剂图像转印到图像接收片材上以便堆叠和固定在其上而形成彩色图像的电子照相设备中，即使在进行无油定影处理并允许 工艺速度在宽范围内变化，本发明提供了一种粘合剂树脂，调色剂和电子照相设备，其可以实现优异的定影性和抗偏移性，从而形成具有高色彩再现性的彩色图像， 高质量。 在本发明中，在GPC色谱图的分子量分布中分子量最大峰值分子量为2×10 3〜3×10 4，分子量最大峰或3〜10 4至1×10 6，其中位于分子量为3×10 4至1×10 6范围内的分子量最大峰或肩峰是通过捏合含有高分子量的特定粘合剂树脂的调色剂组合物 提供不低于特定量的重量组分，使得粘合剂的高分子量组分通过在捏合时施加的热或机械能转化为低分子量组分。
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公开(公告)号：US06326116B2
公开(公告)日：2001-12-04
申请号：US09754157
申请日：2001-01-04
申请人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
发明人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
IPC分类号： G03G9097
CPC分类号： G03G9/08755 , G03G9/08782 , G03G9/08795 , G03G9/09716 , G03G9/09725
摘要： The present invention provides a toner comprising a binding resin, a colorant, and an ester based wax having an iodine value of not more than 25 and a saponification value of 30 to 300 (for example, at least one selected from the group consisting of meadowfoam oil and derivatives thereof and jojoba oil and derivatives thereof) and a method for producing the same. The present invention also provides a toner comprising silica fine powder containing a component having a polydimethyl siloxane skeleton extracted by an organic solvent at a content of not more than 2.5 wt %, and a method for producing the same. This stabilizes the chargeability and flowability of the toner during long period use, and eliminates the filming on a photoconductive member or a transfer medium. Moreover, toner that provides good fixability, anti-offset properties, waste toner recycle properties, and transfer efficiency can be obtained with good reproducibility.
摘要翻译： 本发明提供一种调色剂，其包含粘合树脂，着色剂和碘值不大于25且皂化值为30至300的酯基蜡（例如，选自由白发泡沫组成的组中的至少一种 油及其衍生物和霍霍巴油及其衍生物）及其制造方法。 本发明还提供一种包含二氧化硅细粉末的调色剂及其制备方法，该二氧化硅细粉末含有由有机溶剂以不超过2.5重量％的含量提取的聚二甲基硅氧烷骨架的成分。 这使得长期使用期间调色剂的带电性和流动性稳定，并且消除了在感光体或转印介质上的成膜。 此外，可以以良好的再现性获得提供良好的定影性，抗偏移性，废调色剂回收性能和转印效率的调色剂。
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公开(公告)号：US07208254B2
公开(公告)日：2007-04-24
申请号：US11352269
申请日：2006-02-13
申请人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
发明人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
IPC分类号： G03G9/087
CPC分类号： G03G9/081 , G03G9/0819 , G03G9/0821 , G03G9/0833 , G03G9/0834 , G03G9/0835 , G03G9/0836 , G03G9/0838 , G03G9/08704 , G03G9/08728 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G9/09716 , G03G9/09725
摘要： In an electrophotographic apparatus, which forms a color image by transferring a plurality of toner images having different colors onto an image-receiving sheet so as to be stacked and fixed thereon, even in the case of carrying out an oil-less fixing process and allowing the process speed to vary within wide range, the present invention provides a binder resin, toner and an electrophotographic apparatus which make it possible to achieve both superior fixing property and anti-offset property, and consequently to form a color image with high color reproducibility and high quality. In the present invention, a toner comprising a molecular weight maximum peak in a range of molecular weights from 2×103 to 3×104 in molecular weight distribution of GPC chromatogram, and a molecular weight maximum peak or shoulder in a range from 3×104 to 1×106, wherein said molecular weight maximum peak or shoulder located on a range of molecular weights from 3×104 to 1×106 is obtained by kneading a toner composition containing a specific binder resin containing a high molecular weight component at not less than a specific amount so that the high molecular weight component of the binder is converted into a low molecular weight component by thermal or mechanical energy exerted at the time of kneading, is provided.
摘要翻译： 在通过将具有不同颜色的多个调色剂图像转印到图像接收片材上以便堆叠和固定在其上而形成彩色图像的电子照相设备中，即使在进行无油定影处理并允许 工艺速度在宽范围内变化，本发明提供了一种粘合剂树脂，调色剂和电子照相设备，其可以实现优异的定影性和抗偏移性，从而形成具有高色彩再现性的彩色图像， 高质量。 在本发明中，在GPC色谱图的分子量分布中分子量为2×10 3〜3×10 4分子范围内的分子量最大峰的调色剂和分子量 在3×10 4至1×10 6范围内的重量最大峰值或肩峰，其中所述分子量最大峰或肩位于分子量范围为3×10 4 通过将包含高分子量组分的特定粘合剂树脂的调色剂组合物捏合至特定量，以使粘合剂的高分子量组分为 提供了通过在捏合时施加的热或机械能将其转化成低分子量组分。
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公开(公告)号：US20060127789A1
公开(公告)日：2006-06-15
申请号：US11352269
申请日：2006-02-13
申请人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
发明人： Yasuhito Yuasa , Noriaki Hirota , Masahisa Maeda
IPC分类号： G03G9/087
CPC分类号： G03G9/081 , G03G9/0819 , G03G9/0821 , G03G9/0833 , G03G9/0834 , G03G9/0835 , G03G9/0836 , G03G9/0838 , G03G9/08704 , G03G9/08728 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08793 , G03G9/08795 , G03G9/08797 , G03G9/09716 , G03G9/09725
摘要： In an electrophotographic apparatus, which forms a color image by transferring a plurality of toner images having different colors onto an image-receiving sheet so as to be stacked and fixed thereon, even in the case of carrying out an oil-less fixing process and allowing the process speed to vary within wide range, the present invention provides a binder resin, toner and an electrophotographic apparatus which make it possible to achieve both superior fixing property and anti-offset property, and consequently to form a color image with high color reproducibility and high quality. In the present invention, a toner comprising a molecular weight maximum peak in a range of molecular weights from 2×103 to 3×104 in molecular weight distribution of GPC chromatogram, and a molecular weight maximum peak or shoulder in a range from 3×104 to 1×106, wherein said molecular weight maximum peak or shoulder located on a range of molecular weights from 3×104 to 1×106 is obtained by kneading a toner composition containing a specific binder resin containing a high molecular weight component at not less than a specific amount so that the high molecular weight component of the binder is converted into a low molecular weight component by thermal or mechanical energy exerted at the time of kneading, is provided.
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