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32 条记录 (耗时 0.078 秒)

    Toner and fixing method
    7.
    发明授权
    Toner and fixing method 有权
    调色剂和定影方法

    公开(公告)号：US06929894B2

    公开(公告)日：2005-08-16

    申请号：US10191549

    申请日：2002-07-10

    申请人： Nobuyoshi Sugahara ,  Masaaki Taya ,  Junko Yoshikawa ,  Takayuki Itakura ,  Yojiro Hotta

    发明人： Nobuyoshi Sugahara ,  Masaaki Taya ,  Junko Yoshikawa ,  Takayuki Itakura ,  Yojiro Hotta

    IPC分类号： G03G9/08 ,  G03G9/087 ,  G03G15/20 ,  G03G13/20

    CPC分类号： G03G9/0821 ,  G03G9/08755 ,  G03G9/08782 ,  G03G15/2053

    摘要： A toner is disclosed which is composed of toner particles containing at least a binder resin, a colorant and a wax, and an external additive. The wax has, in its DSC endothermic curve, a maximum endothermic peak at 55° C. to 80° C. within the temperature range from 30° C. to 160° C., the maximum endothermic peak having a half width of from 2° C. to 7° C., and the binder resin is composed chiefly of a polyester resin. The toner has a dynamic elastic modulus from 5×102 to 1×105 dN/m2 at 140° C., and its ratio to a dynamic elastic modulus at 170° C. is from 0.05 to 50, and the toner contains 10 to 20% by weight of THF-insoluble matter A of a binder resin component after 8 hours from the start of extraction and 1 to 10% by weight of THF-insoluble matter B of the binder resin component after 24 hours from the start of extraction, the ratio of A to B, B/A, being from 0.1 to 0.8. Also disclosed is a fixing method making use of this toner.

    摘要翻译： 公开了由至少含有粘合剂树脂，着色剂和蜡以及外部添加剂的调色剂颗粒构成的调色剂。 在DSC吸热曲线中，蜡在30℃至160℃的温度范围内在55℃至80℃下具有最大吸热峰，最大吸热峰的半值宽度为2 ℃至7℃，粘合剂树脂主要由聚酯树脂组成。 该调色剂在140℃下的动态弹性模量为5×10 2至1×10 5 dN / m 2以上，并且其与动态 170℃下的弹性模量为0.05〜50，调色剂含有10〜20重量％的从开始提取8小时后的粘结剂树脂成分的THF不溶性物质A和1〜10重量％ 从开始提取24小时后的粘合剂树脂组分的THF不溶物B，A与B的比例B / A为0.1至0.8。 还公开了利用该调色剂的定影方法。

    Toner and two-component developer
    8.
    发明授权
    Toner and two-component developer 有权
    墨粉和双组分显影剂

    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。

    Cyan toner and method for forming an image
    9.
    发明授权
    Cyan toner and method for forming an image 有权
    青色调色剂和形成图像的方法

    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

    IPC分类号： G03G9/09 ,  G03G15/01

    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。

    Black toner with defined loss tangent
    10.
    发明授权
    Black toner with defined loss tangent 失效
    黑色墨粉具有确定的损耗角正切

    公开(公告)号：US07300733B2

    公开(公告)日：2007-11-27

    申请号：US11225169

    申请日：2005-09-14

    申请人： Nobuyoshi Sugahara ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa ,  Tetsuya Ida ,  Kazuhiko Hayami ,  Nozomu Komatsu

    发明人： Nobuyoshi Sugahara ,  Takaaki Kohtaki ,  Yasuhiro Ichikawa ,  Tetsuya Ida ,  Kazuhiko Hayami ,  Nozomu Komatsu

    IPC分类号： G03G9/087

    CPC分类号： G03G9/08755 ,  G03G9/0819 ,  G03G9/0821 ,  G03G9/0823 ,  G03G9/0827 ,  G03G9/08706 ,  G03G9/08708 ,  G03G9/08713 ,  G03G9/08715 ,  G03G9/08717 ,  G03G9/0872 ,  G03G9/08722 ,  G03G9/08724 ,  G03G9/08726 ,  G03G9/08728 ,  G03G9/08731 ,  G03G9/08733 ,  G03G9/08782 ,  G03G9/08795 ,  G03G9/08797 ,  G03G9/0904 ,  G03G9/09783

    摘要： To provide a black toner having excellent charging property and transferring property against a severe environmental change. The black toner includes toner particle containing at least a binder resin, carbon black and a releasing agent, wherein: the toner particles have a weight-average particle diameter of 3.5 to 8.0 μm; total amount of acid value and hydroxyl value of the toner is 30 to 75 mgKOH/g; average circularity of particles contained in the toner having circle-equivalent diameter of 2 μm or more is 0.915 to 0.960; loss tangent tanδ (103 to 104 Hz) of the toner is represented by the following expression: tanδ (103 to 104 Hz)≦0.0060 where the loss tangent tanδ is represented by ε″/ε′ where ε″ denotes dielectric loss factor and ε′ denotes dielectric constant, and tanδ (103 to 104 Hz) denotes the loss tangent in a frequency range of 103 to 104 Hz; and a ratio of tanδ (105 Hz) to tanδ (5×104 Hz) is represented by the following expression: 1.05≦tanδ (105 Hz)/tanδ (5×104 Hz)≦1.40 where tanδ (105 Hz) denotes loss tangent at the frequency of 105 Hz and tanδ (5×104 Hz) denotes loss tangent at the frequency of 5×104 Hz.

    摘要翻译： 为了提供具有优异的充电性能和转印性能的黑色调色剂，以防恶劣的环境变化。 黑色调色剂包括至少含有粘合剂树脂，炭黑和脱模剂的调色剂颗粒，其中：调色剂颗粒的重均粒径为3.5-8.0μm; 调色剂的酸值和羟值的总量为30〜75mgKOH / g; 圆当量直径为2μm以上的调色剂中所含的颗粒的平均圆形度为0.915〜0.960， 调色剂的损耗正切塔兰塔（10 3至10 4 Hz）由以下表达式表示：<？in-line-formula description =“在线公式” end =“lead”？> tandelta（10 3至10 4 Hz）<= 0.0060 <？in-line-formula description =“In-line Formulas”end = “tail”？>其中损耗正切tandelta由ε“/ epsilon”表示，其中epsilon表示介电损耗因子，ε表示介电常数，tandelta（10 3〜10 > 4Hz）表示在10 3至10 4 Hz的频率范围内的损耗角正切; 并且tandelta（10Hz）与tandelta（5×10 4 Hz）的比率由以下表达式表示：<？in-line-formula description =“In- 线公式“end =”lead“？> 1.05 <= TANdelta（10Hz）/ tandelta（5×10 4 Hz）<= 1.40 < 描述=“在线公式”end =“tail”？>其中tandelta（10Hz）表示在10Hz频率下的损耗角正切和tandelta（5×10 5 4Hz）表示频率为5×10 4 Hz的损耗角正切。