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    • 3. 发明授权
    • Process for charging toner compositions
    • 调色剂组合物的加工方法
    • US4524120A
    • 1985-06-18
    • US582211
    • 1984-02-21
    • Thomas J. BudnyWilliam H. Hollenbaugh, Jr.Edward J. Gutman
    • Thomas J. BudnyWilliam H. Hollenbaugh, Jr.Edward J. Gutman
    • G03G15/08G03G9/08G03G9/087G03G9/097G03G9/113G03G13/08G03G9/10
    • G03G13/08G03G9/1134
    • An improved process for rapidly charging toner particles which comprises (I) adding uncharged replenishment toner particles to a charged developer composition comprised of carrier particles and toner particles, the carrier particles consisting of a core containing a continuous polymer coating thereover having incorporated therein a fluoropolymer, contained on from about 1 percent to about 20 percent of the surface area of the coating, (II) contacting the charged developing composition containing said carrier particles with uncharged toner particles wherein charges are transferred to the uncharged toner particles within a mixing period of from about 5 seconds to about 5 minutes, thereby resulting in substantially the same level of charge intensity for said uncharged toner particles as the charge intensity for the charged toner particles in the charged developer composition, which charge intensity for example is from about 5 microcoulombs per gram to about 50 microcoulombs per gram of toner particles.
    • 一种用于快速充电调色剂颗粒的改进方法,其包括(I)将不带电荷的补充调色剂颗粒添加到由载体颗粒和调色剂颗粒组成的带电显影剂组合物中,所述载体颗粒由其中包含其中的含氟聚合物的含有连续聚合物涂层的核心组成, 其含量为涂层表面积的约1%至约20%,(II)使含有载体颗粒的带电荷显影组合物与不带电荷的调色剂颗粒接触,其中将电荷转移至不带电量的调色剂颗粒,其混合时间为约 5秒至约5分钟,从而导致所述不带电荷的调色剂颗粒的充电强度基本上与充电显影剂组合物中带电调色剂颗粒的充电强度相同,其电荷强度例如为约5微克/克至 每克约50微库仑 神经颗粒。
    • 5. 发明授权
    • Color-blind melt flow index properties for toners
    • 调色剂的色盲熔体流动指数特性
    • US06406822B1
    • 2002-06-18
    • US09671997
    • 2000-09-29
    • Scott M. SilenceJoo T. ChungJames M. ProperEdward J. GutmanJames G. StenzelKip L. JugleYelena ShapiroJames A. WintersMaria M. BardenJohn S. Walters
    • Scott M. SilenceJoo T. ChungJames M. ProperEdward J. GutmanJames G. StenzelKip L. JugleYelena ShapiroJames A. WintersMaria M. BardenJohn S. Walters
    • G03G908
    • G03G9/0821G03G9/08797G03G9/097G03G9/09708G03G9/09783
    • At least three differently colored toners, designed for use together in forming a color image in an image developing device, have substantially the same melt flow index value. By substantially matching the melt flow index values of at least three toners of a set of toners, it has been found that the resultant color image has an overall excellent image quality, i.e., an excellent overall gloss level without any gloss banding. The toners may be made to have substantially the same melt flow index value in a carefully controlled process that includes forming a single toner by feeding at least one binder and at least one colorant into a mixing device to form a mixture, upon exit of the mixture from the mixing device, measuring a rheology property of the mixture with at least one monitoring device, and comparing the measured rheology property to a target property range that the measured rheology property must be within in order for the single toner to achieve the desired melt flow index value, wherein if the measuring indicates that the rheology property is outside of the target property range, feed amounts of the at least one binder or of the at least one colorant into the mixing device are adjusted, grinding the mixture, optionally together with a portion of one or more external additives to be added to the mixture, classifying the ground mixture, mixing the classified mixture with one or more external surface additives to obtain the single toner having the desired melt flow index value, and repeating the steps for each additional differently colored toner.
    • 设计用于在图像显影装置中形成彩色图像一起使用的至少三种不同颜色的调色剂具有基本上相同的熔体流动指数值。 通过基本上匹配一组调色剂的至少三种调色剂的熔体流动指数值,已经发现所得到的彩色图像具有总体优异的图像质量,即没有任何光泽条纹的优异的整体光泽度。 调色剂可以在仔细控制的方法中具有基本上相同的熔体流动指数值,包括通过在混合物出口时将至少一种粘合剂和至少一种着色剂进料到混合装置中形成混合物来形成单一调色剂 从混合装置测量混合物与至少一个监测装置的流变性质,并将所测量的流变性能与所测量的流变性能必须在其中的目标性能范围进行比较,以使单个调色剂达到所需的熔体流动 指数值,其中如果测量表明流变性能在目标特性范围之外,则调节至少一种粘合剂或至少一种着色剂进入混合装置的进料量,任选地与 一部分添加到混合物中的外部添加剂,将研磨的混合物分级,将分级的混合物与一个或多个外表面 添加剂以获得具有所需熔体流动指数值的单一调色剂,并且对于每种附加的不同颜色的调色剂重复步骤。
    • 9. 发明授权
    • Toner and developer for magnetic brush development system
    • 磁刷开发系统的墨粉和显影剂
    • US06319647B1
    • 2001-11-20
    • US09520360
    • 2000-03-07
    • Edward J. GutmanBarbara M. Ferguson
    • Edward J. GutmanBarbara M. Ferguson
    • G03G9087
    • G03G9/09783G03G9/0823G03G9/08755G03G9/08793G03G9/08795G03G9/08797G03G9/09708G03G9/09725G03G9/09791
    • A toner of toner particles containing at least one binder, at least one colorant, and preferably one or more external additives is advantageously formed into a developer and used in a magnetic brush development system to achieve consistent, high quality copy images. The toner particles, following triboelectric contact with carrier particles, exhibit a charge per particle diameter (Q/D) of from 0.6 to 0.9 fC/&mgr;m and a triboelectric charge of from 20 to 25 &mgr;C/g. The toner particles preferably have an average particle diameter of from 7.8 to 8.3 microns. The toner is combined with carrier particles to achieve a developer, the carrier particles preferably having an average diameter of from 45 to 55 microns and including a core of ferrite substantially free of copper and zinc coated with a coating comprising a polyvinylidenefluoride polymer or copolymer and a polymethyl methacrylate polymer or copolymer.
    • 有利地,将包含至少一种粘合剂,至少一种着色剂,优选一种或多种外部添加剂的调色剂颗粒的调色剂形成为显影剂,并用于磁刷显影系统中以实现一致的高质量复印图像。 与载体颗粒摩擦接触后的调色剂颗粒显示出0.6至0.9fC / mum的每个颗粒直径(Q / D)的电荷和20至25μC/ g的摩擦电荷。 调色剂颗粒的平均粒径优选为7.8至8.3微米。 调色剂与载体颗粒结合以获得显影剂,载体颗粒优选具有45至55微米的平均直径,并且包括基本上不含铜和锌的铁心,涂覆有包含聚偏二氟乙烯聚合物或共聚物的涂层和 聚甲基丙烯酸甲酯聚合物或共聚物。