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公开(公告)号：US07138213B2
公开(公告)日：2006-11-21
申请号：US10793965
申请日：2004-03-05
申请人： Takayuki Itakura , Yoshinobu Baba , Yuko Sato , Nobuyoshi Sugahara , Kazuo Terauchi , Takaaki Kotaki , Hirohide Tanikawa
发明人： Takayuki Itakura , Yoshinobu Baba , Yuko Sato , Nobuyoshi Sugahara , Kazuo Terauchi , Takaaki Kotaki , Hirohide Tanikawa
CPC分类号： G03G9/08786 , G03G9/0821 , G03G9/08782 , G03G9/09
摘要： The present invention provides a cyan toner including: one or plural heat-absorption peaks in a temperature range of 30 to 200° C. in a heat-absorption curve obtained by using a differential scanning calorimeter; a maximal value of a maximum heat-absorption peak temperature in the range of 65 to 150° C.; and a reflectance of 45 to 80% at a wavelength of 500 nm, a reflectance of 5 to 30% at a wavelength of 600 nm, and a brightness L* of 45 to 75, when measured in a powder form by spectroscopic analysis. The present invention thus provides a cyan toner capable of forming an image with reduced graininess and roughness from a low-density region to a high-density region and ensured a sufficient fixing temperature region, and a method for forming an image using the cyan toner.
摘要翻译： 本发明提供了一种青色调色剂，其包括：在通过使用差示扫描量热计获得的热吸收曲线中，在30至200℃的温度范围内的一个或多个吸热峰; 最大吸热峰温度的最大值在65〜150℃的范围内。 当波长为500nm时的反射率为45〜80％，波长600nm的反射率为5〜30％，通过光谱分析以粉末形式测定时的亮度L *为45〜75。 因此，本发明提供了能够形成从低密度区域到高密度区域具有降低的颗粒度和粗糙度的图像的青色调色剂，并确保了足够的定影温度区域，以及使用青色调色剂形成图像的方法。
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公开(公告)号：US07144668B2
公开(公告)日：2006-12-05
申请号：US10792732
申请日：2004-03-05
申请人： Yoshinobu Baba , Yuko Sato , Ryoichi Fujita , Takaaki Kotaki , Nobuyoshi Sugahara , Kazuo Terauchi , Takayuki Itakura
发明人： Yoshinobu Baba , Yuko Sato , Ryoichi Fujita , Takaaki Kotaki , Nobuyoshi Sugahara , Kazuo Terauchi , Takayuki Itakura
IPC分类号： G03G9/087
CPC分类号： G03G9/08742 , G03G9/0819 , G03G9/0821 , G03G9/0827 , G03G9/08702 , G03G9/08755 , G03G9/10 , G03G9/1134
摘要： The present invention provides a toner: comprising a binder resin comprising a polyester unit, a colorant, a releasing agent, and inorganic fine particles; has a weight average particle diameter of 3.0–6.5 μm; has an average circularity of particles in the toner each having a circle-equivalent diameter of 2 μm or more of 0.920–0.945; has a BET specific surface area of 2.1–3.5 m2/g; and has a permeability of light of a wavelength of 600 nm in a liquid having dispersed the toner in a 45 vol % methanol aq. of 30–80%. The present invention also provides a two-component developer: comprising the toner and a magnetic carrier comprising magnetic core particles coated by a coating layer; and has a number average particle diameter of 15–80 μm. Using the toner and the two-component developer enables a high-quality image to be formed at a high speed even in an oilless fixing system.
摘要翻译： 本发明提供一种调色剂：包含粘合剂树脂，其包含聚酯单元，着色剂，脱模剂和无机细颗粒; 重均粒径为3.0-6.5μm; 调色剂中的平均圆形颗粒的圆当量直径为2μm或更大，为0.920-0.945; 具有2.1-3.5m 2 / g的BET比表面积; 并且在具有将调色剂分散在45体积％甲醇水溶液中的液体中具有600nm波长的光的渗透性。 为30-80％。 本发明还提供了一种双组分显影剂，包括调色剂和包含被涂层涂覆的磁芯颗粒的磁性载体; 并且具有15-80μm的数均粒径。 使用调色剂和双组分显影剂使得即使在无油定影系统中也可以高速形成高质量图像。
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公开(公告)号：US20050014079A1
公开(公告)日：2005-01-20
申请号：US10890165
申请日：2004-07-14
CPC分类号： G03G9/08795 , G03G9/0821 , G03G9/08742 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08797 , G03G9/092 , G03G9/0926
摘要： A magenta toner is provided which contains at least a binder resin, a colorant, and a wax, in which a maximum heat-absorption peak temperature as measured using a differential scanning calorimeter, a reflectance at a predetermined wavelength when measured in a powder state by spectroscopic analysis, and lightness when measured in a powder form are in specific ranges. A full-color image is formed using the magenta toner as a pale magenta toner in combination with a deep magenta toner. According to the present invention, it becomes possible to form a vivid image which has reduced graininess and roughness from a low-density region to a high-density region, ensures a sufficient fixing temperature region, has a color reproduction range wider that the conventional one, and has high transparency on an OHP sheet.
摘要翻译： 提供品红色调色剂，其至少含有粘合剂树脂，着色剂和蜡，其中使用差示扫描量热计测量的最大吸热峰值温度，当以粉末状态测量时以预定波长的反射率通过 光谱分析和粉末状测定时的亮度均在特定范围内。 使用洋红色调色剂作为浅洋红色调色剂与深品红色调色剂组合形成全色图像。 根据本发明，可以形成从低密度区域到高密度区域具有降低的颗粒性和粗糙度的生动的图像，确保足够的定影温度区域，具有比现有技术更宽的色彩再现范围 ，并且在OHP片材上具有高透明度。
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公开(公告)号：US07442478B2
公开(公告)日：2008-10-28
申请号：US11693981
申请日：2007-03-30
IPC分类号： G03G15/01
CPC分类号： G03G9/08795 , G03G9/0821 , G03G9/08742 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08797 , G03G9/092 , G03G9/0926
摘要： A magenta toner is provided which contains at least a binder resin, a colorant, and a wax, in which a maximum heat-absorption peak temperature as measured using a differential scanning calorimeter, a reflectance at a predetermined wavelength when measured in a powder state by spectroscopic analysis, and lightness when measured in a powder form are in specific ranges. A full-color image is formed using the magenta toner as a pale magenta toner in combination with a deep magenta toner. According to the present invention, it becomes possible to form a vivid image which has reduced graininess and roughness from a low-density region to a high-density region, ensures a sufficient fixing temperature region, has a color reproduction range wider that the conventional one, and has high transparency on an OHP sheet.
摘要翻译： 提供品红色调色剂，其至少含有粘合剂树脂，着色剂和蜡，其中使用差示扫描量热计测量的最大吸热峰值温度，当以粉末状态测量时以预定波长的反射率通过 光谱分析和粉末状测定时的亮度均在特定范围内。 使用洋红色调色剂作为浅洋红色调色剂与深品红色调色剂组合形成全色图像。 根据本发明，可以形成从低密度区域到高密度区域具有降低的颗粒性和粗糙度的生动的图像，确保足够的定影温度区域，具有比现有技术更宽的色彩再现范围 ，并且在OHP片材上具有高透明度。
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公开(公告)号：US07320850B2
公开(公告)日：2008-01-22
申请号：US10890165
申请日：2004-07-14
IPC分类号： G03G9/08
CPC分类号： G03G9/08795 , G03G9/0821 , G03G9/08742 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08797 , G03G9/092 , G03G9/0926
摘要： A magenta toner is provided which contains at least a binder resin, a colorant, and a wax, in which a maximum heat-absorption peak temperature as measured using a differential scanning calorimeter, a reflectance at a predetermined wavelength when measured in a powder state by spectroscopic analysis, and lightness when measured in a powder form are in specific ranges. A full-color image is formed using the magenta toner as a pale magenta toner in combination with a deep magenta toner. According to the present invention, it becomes possible to form a vivid image which has reduced graininess and roughness from a low-density region to a high-density region, ensures a sufficient fixing temperature region, has a color reproduction range wider that the conventional one, and has high transparency on an OHP sheet.
摘要翻译： 提供品红色调色剂，其至少包含粘合剂树脂，着色剂和蜡，其中使用差示扫描量热计测量的最大吸热峰值温度，当以粉末状态测量时以预定波长测量的反射率由 光谱分析和粉末状测定时的亮度均在特定范围内。 使用洋红色调色剂作为浅洋红色调色剂与深品红色调色剂组合形成全色图像。 根据本发明，可以形成从低密度区域到高密度区域具有降低的颗粒性和粗糙度的生动的图像，确保足够的定影温度区域，具有比现有技术更宽的色彩再现范围 ，并且在OHP片材上具有高透明度。
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公开(公告)号：US20070184372A1
公开(公告)日：2007-08-09
申请号：US11693981
申请日：2007-03-30
IPC分类号： G03G15/10
CPC分类号： G03G9/08795 , G03G9/0821 , G03G9/08742 , G03G9/08755 , G03G9/08782 , G03G9/08786 , G03G9/08797 , G03G9/092 , G03G9/0926
摘要： A magenta toner is provided which contains at least a binder resin, a colorant, and a wax, in which a maximum heat-absorption peak temperature as measured using a differential scanning calorimeter, a reflectance at a predetermined wavelength when measured in a powder state by spectroscopic analysis, and lightness when measured in a powder form are in specific ranges. A full-color image is formed using the magenta toner as a pale magenta toner in combination with a deep magenta toner. According to the present invention, it becomes possible to form a vivid image which has reduced graininess and roughness from a low-density region to a high-density region, ensures a sufficient fixing temperature region, has a color reproduction range wider that the conventional one, and has high transparency on an OHP sheet.
摘要翻译： 提供品红色调色剂，其至少含有粘合剂树脂，着色剂和蜡，其中使用差示扫描量热计测量的最大吸热峰值温度，当以粉末状态测量时以预定波长的反射率通过 光谱分析和粉末状测定时的亮度均在特定范围内。 使用洋红色调色剂作为浅洋红色调色剂与深品红色调色剂组合形成全色图像。 根据本发明，可以形成从低密度区域到高密度区域具有降低的颗粒性和粗糙度的生动的图像，确保足够的定影温度区域，具有比现有技术更宽的色彩再现范围 ，并且在OHP片材上具有高透明度。
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公开(公告)号：US07297455B2
公开(公告)日：2007-11-20
申请号：US10900177
申请日：2004-07-28
CPC分类号： G03G9/09708 , G03G9/08755 , G03G9/08782 , G03G9/09725 , G03G9/09783
摘要： A toner is composed primarily of toner particles containing at least a binder resin, a colorant and a wax, and inorganic fine particles. The binder resin is one which has at least a polyester unit and is synthesized by using as a catalyst one or more compounds selected from titanium chelate compounds each having a specific structure and hydrates of the titanium chelate compounds. The toner has superior fixing performance and high-temperature anti-offset properties and is superior in charge stability even when used for a long time.
摘要翻译： 调色剂主要由至少含有粘合剂树脂，着色剂和蜡的调色剂颗粒和无机细颗粒组成。 粘合剂树脂是至少具有聚酯单元的粘合剂树脂，并且通过使用一种或多种选自具有特定结构的钛螯合物和钛螯合物的水合物的化合物作为催化剂来合成。 该调色剂具有优异的定影性能和高温抗污损性，并且即使长时间使用也具有优异的电荷稳定性。
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公开(公告)号：US20050026056A1
公开(公告)日：2005-02-03
申请号：US10900177
申请日：2004-07-28
CPC分类号： G03G9/09708 , G03G9/08755 , G03G9/08782 , G03G9/09725 , G03G9/09783
摘要： A toner is composed primarily of toner particles containing at least a binder resin, a colorant and a wax, and inorganic fine particles. The binder resin is one which has at least a polyester unit and is synthesized by using as a catalyst one or more compounds selected from titanium chelate compounds each having a specific structure and hydrates of the titanium chelate compounds. The toner has superior fixing performance and high-temperature anti-offset properties and is superior in charge stability even when used for a long time.
摘要翻译： 调色剂主要由至少含有粘合剂树脂，着色剂和蜡的调色剂颗粒和无机细颗粒组成。 粘合剂树脂是至少具有聚酯单元的粘合剂树脂，并且通过使用一种或多种选自具有特定结构的钛螯合物和钛螯合物的水合物的化合物作为催化剂来合成。 该调色剂具有优异的定影性能和高温抗污损性，并且即使长时间使用也具有优异的电荷稳定性。
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公开(公告)号：US6083655A
公开(公告)日：2000-07-04
申请号：US353840
申请日：1999-07-15
申请人： Hitoshi Itabashi , Yuko Sato , Yoshinobu Baba , Yuzo Tokunaga
发明人： Hitoshi Itabashi , Yuko Sato , Yoshinobu Baba , Yuzo Tokunaga
CPC分类号： G03G15/0928 , G03G9/107 , G03G2215/0609
摘要： A developing method including the steps of: stirring a two component-type developer which contains a toner and a carrier; conveying the developer to a developing section with a conveying screw and a developer carrying member; and developing an electrostatic latent image on an image holding member by forming a magnetic brush on a developing magnetic pole, wherein the carrier is a magnetic material dispersion-type resin carrier containing a binder resin and a metal oxide, has a low coercive force and has been previously exposed and magnetized in a specific magnetic field and has stable residual magnetization, thereby imparting a high durability to the developer and making it usable for a long time to reproduce a large number of images having stable qualities.
摘要翻译： 一种显影方法，包括以下步骤：搅拌含有调色剂和载体的双组分型显影剂; 使用输送螺杆和显影剂承载构件将显影剂输送到显影部分; 以及通过在显影磁极上形成磁刷而在图像保持部件上显影静电潜像，其中载体是含有粘合剂树脂和金属氧化物的磁性材料分散型树脂载体，具有低的矫顽力，并具有 先前在特定磁场中暴露并磁化，并且具有稳定的剩余磁化强度，从而赋予显影剂高的耐久性，并使得其可以长时间地再现大量具有稳定品质的图像。
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10.发明授权Carrier for electrophotography, process for its production, two-component type developer, and image forming method 失效电子照相用载体，其制造方法，双组分型显影剂和图像形成方法
公开(公告)号：US5573880A
公开(公告)日：1996-11-12
申请号：US363959
申请日：1994-12-27
申请人： Shinya Mayama , Takeshi Ikeda , Yuko Sato , Yoshinobu Baba , Hiroshi Aoto , Yasuko Hayashi , Hitoshi Itabashi , Yuzo Tokunaga
发明人： Shinya Mayama , Takeshi Ikeda , Yuko Sato , Yoshinobu Baba , Hiroshi Aoto , Yasuko Hayashi , Hitoshi Itabashi , Yuzo Tokunaga
CPC分类号： G03G9/1075 , G03G9/10 , G03G9/1132
摘要： A carrier for use in electrophotography has carrier particles. The carrier particles each comprise a carrier core particle and a resin for coating the carrier core particle and having a resistivity of 10.sup.10 .OMEGA..multidot.cm or above under conditions of a temperature of 23.degree. C. and a humidity of 50% RH. The carrier particles have an average particle diameter of not larger than 100 .mu.m and a resistivity of 10.sup.10 .OMEGA..multidot.cm or above. The carrier particles comprise not less than 80% by number of resin-coated carrier particles whose carrier core particles are each coated with a resin in a coverage of not less than 90%.
摘要翻译： 用于电子照相术的载体具有载体颗粒。 载体颗粒各自包含载体芯颗粒和用于涂覆载体芯颗粒的树脂，并且在23℃和50％RH的湿度的条件下具有1010ΩEGAxcm或更高的电阻率。 载体颗粒的平均粒径不大于100μm，电阻率为1010欧米伽×厘米或以上。 载体颗粒包含不少于80个数量的树脂涂覆的载体颗粒，其载体芯颗粒各自以不低于90％的覆盖率覆盖树脂。
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