Toner for developing electrostatic image
    11.
    发明授权
    Toner for developing electrostatic image 失效
    用于显影静电图像的调色剂

    公开(公告)号:US5384224A

    公开(公告)日:1995-01-24

    申请号:US26002

    申请日:1993-03-04

    IPC分类号: G03G9/08 G03G9/087

    摘要: A toner for developing an electrostatic image is constituted by a binder resin and a hydrocarbon wax having a weight-average molecular weight of 800 to 3600. The toner is provided with good fixation characteristics including low-temperature fixability and anti-high temperature offsetting if the toner shows a storage modulus of at least 1.times.10.sup.3 dyn/cm.sup.2, a loss modulus in the range of 5.times.10.sup.2 -5.times.10.sup.4 dyn/cm.sup.2 and a ratio of loss modulus/storage modulus (loss tangent) of below 0.9 as measured under conditions of a frequency of 0.1 Hz and a temperature of 200.degree. C.; and the toner provides a DSC curve, as measured by a differential scanning calorimeter, showing an onset temperature of heat absorption of at most 105.degree. C. and a heat-absorption peak temperature in the range of 90.degree.-120.degree. C. on temperature increase, and a heat evolution peak temperature in the range of 62.degree.-75.degree. C. and a heat evolution peak intensity ratio of at least 2.times.10.sup.-3 on temperature decrease.

    摘要翻译: 用于显影静电图像的调色剂由粘合剂树脂和重均分子量为800至3600的烃蜡构成。调色剂具有良好的固色特性,包括低温定影性和抗高温偏移,如果 调色剂的储能模量为至少1×10 3 dyn / cm 2,损耗模量在5×102-5×10 4 dyn / cm 2的范围内,损耗模量/储能模量(损耗角正切)的比率低于0.9, 0.1Hz,温度200℃。 并且调色剂提供通过差示扫描量热计测量的DSC曲线,其显示吸热开始温度至多为105℃,吸热峰温度在90-120℃范围内,温度 放热峰值温度在62°-75℃范围内,放热峰强度比至少为2×10-3,降温。

    Process cartridge
    12.
    发明授权
    Process cartridge 失效
    处理墨盒

    公开(公告)号:US06810217B2

    公开(公告)日:2004-10-26

    申请号:US10131522

    申请日:2002-04-25

    IPC分类号: G03G1508

    摘要: A process cartridge which is detachably mountable to a main body of an image-forming apparatus has a photosensitive member, a magnetic toner-holding section provided with a magnetic toner-carrying member which transports the toner to a developing zone, and a residual magnetic toner detector capable of detecting residual toner by a change in electrostatic capacity which is caused between electrodes provided inside the magnetic toner-holding section. The magnetic toner contains at least a binder resin and a colorant, having a weight-average particle diameter of from 6.5 &mgr;m to 15.0 &mgr;m, and having a Carr's floodability index of more than 80.

    摘要翻译: 可拆卸地安装到图像形成装置的主体的处理盒具有感光构件,设置有将调色剂输送到显影区的磁性调色剂承载构件的磁性调色剂保持部和残留的磁性调色剂 检测器能够通过设置在磁性调色剂保持部内部的电极之间的静电容量的变化来检测残留调色剂。 磁性调色剂至少含有重均粒径为6.5〜15.0μm的粘合剂树脂和着色剂,并且具有Carr的防洪指数大于80。

    Toner production process
    13.
    发明授权
    Toner production process 有权
    碳粉生产过程

    公开(公告)号:US06673506B2

    公开(公告)日:2004-01-06

    申请号:US10014417

    申请日:2001-12-14

    IPC分类号: G03G9087

    摘要: In a toner production process having at least a kneading step, a pulverization step using a mechanical grinding machine, and a classification step, the grinding means comprises a mechanical grinding machine having at least a rotor which is a rotator attached to the center rotating shaft and a stator which is provided around the rotor, keeping a constant gap between the stator and the rotor surface, the grinding machine being so constructed that a circular space formed by keeping the gap stands airtight, and the surface of at least one of the rotor and the stator is coated by the plating of a chromium alloy containing at least chromium carbide.

    摘要翻译: 在至少具有捏合步骤的粉末生产方法,使用机械研磨机的粉碎步骤和分级步骤中,研磨装置包括机械研磨机,其至少具有转子,转子是附接到中心旋转轴的转子, 设置在转子周围的定子,在定子和转子表面之间保持恒定的间隙,该研磨机的结构使得通过使间隙保持气密而形成的圆形空间,以及转子和 定子通过镀至少含有碳化铬的铬合金进行镀覆。

    Magnetic toner and process cartridge
    14.
    发明授权
    Magnetic toner and process cartridge 有权
    磁性墨粉和处理墨盒

    公开(公告)号:US06630275B2

    公开(公告)日:2003-10-07

    申请号:US10095991

    申请日:2002-03-13

    IPC分类号: G03G9083

    摘要: A magnetic toner is formed of magnetic toner particles each comprising at least a binder resin and a magnetic iron oxide. The magnetic toner is provided with improved developing performances by realizing an appropriate surface-exposure state of the magnetic iron oxide, which is represented by a wettability characteristic in methanol/water mixture liquids of the magnetic toner such that it shows a transmittance of 80% for light at a wavelength of 780 nm at a methanol concentration in a range of 65-75% and a transmittance of 20% at a methanol concentration in a range of 66-76%.

    摘要翻译: 磁性调色剂由至少包含粘合剂树脂和磁性氧化铁的磁性调色剂颗粒形成。 通过实现由磁性调色剂的甲醇/水混合液体的润湿特性表示的磁性氧化铁的合适的表面暴露状态使得磁性调色剂具有改进的显影性能,使得其对于 在甲醇浓度在65-75%的范围内的波长为780nm的光和在66-76%范围内的甲醇浓度下的透射率为20%。

    Toner for developing electrostatic image and heat-fixing method
comprising a hydrocarbon wax
    15.
    发明授权
    Toner for developing electrostatic image and heat-fixing method comprising a hydrocarbon wax 失效
    用于显影静电图像的调色剂和包含烃蜡的热固定方法

    公开(公告)号:US5364722A

    公开(公告)日:1994-11-15

    申请号:US943032

    申请日:1992-09-10

    IPC分类号: G03G9/087 G03G13/20 G03G9/00

    摘要: A toner for developing electrostatic images is prepared from a binder resin and a hydrocarbon wax. The toner is provided with improved fixability and anti-offset characteristic by controlling the thermal characteristic of the hydrocarbon wax so as to provide a DSC (differential scanning calorimeter) curve, showing an onset temperature of heat absorption in the range of 50.degree.-110.degree. C. and at least one heat absorption peak P1 in the range of 70.degree.-130.degree. C. giving a peak temperature T.sub.P1 on temperature increase, and showing a maximum heat evolution peak temperature in the range of T.sub.P1 .+-.9.degree. C. on temperature decrease. Correspondingly, the toner provides a DSC curve showing a rising temperature of heat absorption of at least 80.degree. C., an onset temperature of heat absorption of at most 105.degree. C. and a heat absorption peak temperature in the range of 100.degree.-120.degree. C., respectively on temperature increase, and showing a heat evolution peak temperature in the range of 62.degree.-75.degree. C. and a heat evolution peak intensity ratio of at least 5.times.10.sup.-3 on temperature decrease.

    摘要翻译: 用于静电图像显影的调色剂由粘合剂树脂和烃蜡制备。 通过控制烃蜡的热特性,调色剂具有改进的定影性和抗污损特性,以提供DSC(差示扫描量热计)曲线,其显示在50°-110°范围内的吸热开始温度 和至少一个在70°-130℃范围内的吸热峰P1,在温度升高时提供峰值温度TP1,并且在TP1 +/- 9℃范围内显示最大放热峰值温度 温度下降。 相应地,调色剂提供DSC曲线,其显示吸热温度上升至少80℃,吸热开始温度至多105℃,吸热峰温度在100-120℃范围内 ℃,分解温度升高,放热峰值温度在62°-75℃范围内,放热峰强度比至少为5×10-3,降温。