Method for impression development
    1.
    发明授权
    Method for impression development 失效
    印象发展方法

    公开(公告)号:US5702857A

    公开(公告)日:1997-12-30

    申请号:US808640

    申请日:1997-02-28

    IPC分类号: G03G9/08 G03G9/097 G03G13/08

    摘要: The present invention provides a method for impression development which comprises forming a thin layer of a toner on a surface of a developing roller with a plate-like rigid member, and developing an electrostatic latent image formed on a photoconductor by contacting the thin layer with the electrostatic latent image. The toner comprises toner particles, and prescribed amount of inorganic fine particles (mean particle diameter of 0.1 to 1.0 .mu.m on the volume basis), and/or comprises toner particles which have prescribed distribution of the odd-shape degree of the toner particle (mean value of the odd-shape degree and the proportion of the number of toner particles having the odd-shape degree of not more than 0.2). According to the method for impression development, it becomes possible to form an image having no failures and good image quality.

    摘要翻译: 本发明提供一种印模发展方法,其包括在具有板状刚性构件的显影辊的表面上形成调色剂薄层,并且通过使薄层与所述薄层接触来显影形成在感光体上的静电潜像 静电潜像。 调色剂包括调色剂颗粒和规定量的无机细颗粒(基于体积的平均粒径为0.1至1.0μm),和/或包括具有规定分布的调色剂颗粒的奇数度的调色剂颗粒( 异形度的平均值和奇数形状度的调色剂颗粒数的比例不大于0.2)。 根据印象发展的方法,可以形成没有故障和良好图像质量的图像。

    Magnetic toner having improved humidity dependency
    2.
    发明授权
    Magnetic toner having improved humidity dependency 失效
    具有改善的湿度依赖性的磁性调色剂

    公开(公告)号:US4495267A

    公开(公告)日:1985-01-22

    申请号:US477660

    申请日:1983-03-22

    摘要: Disclosed is a magnetic toner having an improved humidity dependency, which comprises as main ingredients a magnetic material composed of magnetite and a binder medium, wherein the water-soluble component content in the magnetite is lower than 0.15% by weight and the water content of the magnetite at a temperature of 20.degree. C. and a relative humidity of 60% is lower than 0.3% by weight.If this magnetic toner is used for developing an electrostatically charged image, a sharp and clear copy having a high image density with no fogging can be obtained even under a high humidity condition.

    摘要翻译: 公开了具有改善的湿度依赖性的磁性调色剂,其主要成分是由磁铁矿和粘合剂介质组成的磁性材料,其中磁铁矿中的水溶性成分含量低于0.15重量%,水分含量 在20℃的温度和相对湿度为60%的磁铁矿低于0.3重量%。 如果这种磁性调色剂用于显影静电电荷的图像,即使在高湿度条件下也可以获得具有高图像浓度而没有起雾的清晰和清晰的拷贝。

    Method for preventing offset in electrophotography
    3.
    发明授权
    Method for preventing offset in electrophotography 失效
    防止电子照相术偏移的方法

    公开(公告)号:US4645729A

    公开(公告)日:1987-02-24

    申请号:US780191

    申请日:1985-09-26

    CPC分类号: G03G9/09783

    摘要: A charged image on a photosensitive layer is developed with a toner containing a releasing agent and a hydroxycarboxylic acid complex salt to form a toner image. The toner image is then transferred to a receptor sheet and fixed to it. The use of a toner containing a specific hydroxycarboxylic acid complex salt brings about a marked advantage of widening a non-offset region to a higher temperature without impairing the antiblocking property, flowability and heat resistance of the toner.

    摘要翻译: 用含有脱模剂和羟基羧酸络盐的调色剂显影感光层上的带电图像以形成调色剂图像。 然后将调色剂图像转印到受体片并固定在其上。 使用含有特定羟基羧酸络盐的调色剂具有将非偏移区域扩大到更高温度的显着优点,而不会损害调色剂的防粘连性,流动性和耐热性。

    Dry developer for electrostatic image with Al or Ti alkoxide
    4.
    发明授权
    Dry developer for electrostatic image with Al or Ti alkoxide 失效
    用Al或Ti醇盐静电显影的干燥显影剂

    公开(公告)号:US4409312A

    公开(公告)日:1983-10-11

    申请号:US351445

    申请日:1982-02-23

    摘要: Disclosed is a dry developer for an electrostatic image, which comprises molded particles of a dispersion of a binder medium, a wax and a pigment, wherein a combination or partial reaction product of (A) a copolymer of an olefin with a polar group-containing, ethylenically unsaturated monomer and (B) a metal alkoxide of aluminum or titanium is incorporated as a crosslinking agent into said molded particles.In this dry developer, the mutual dispersibility of the respective developer components is highly improved, and the developer particles are uniform and homogeneous in the composition.This dry developer for an electrostatic image is prepared by a process which comprises kneading a mixture of a binder resin, a wax and a pigment at a temperature higher than the softening points of the binder resin and wax and molding the kneaded composition into fine particles, wherein prior to, simultaneously with or after addition of the pigment, a combination or partial reaction product of (A) a copolymer of an olefin with a polar group-containing, ethylenically unsaturated monomer and (B) a metal alkoxide of aluminum or titanium is incorporated into the binder resin and wax and the composition is reacted in the molten state.

    摘要翻译: 公开了一种用于静电图像的干燥显影剂,其包括粘合剂介质,蜡和颜料的分散体的模制颗粒,其中(A)烯烃与极性基团的共聚物的组合或部分反应产物 ,烯键式不饱和单体和(B)铝或钛的金属醇盐作为交联剂引入所述​​模塑颗粒中。 在这种干燥显影剂中,各显影剂组分的相互分散性大大提高,并且显影剂颗粒在组合物中均匀且均匀。 该静电图像用干燥显影剂通过以下方法制备,该方法包括在高于粘合剂树脂和蜡的软化点的温度下捏合粘合剂树脂,蜡和颜料的混合物,并将捏合的组合物模塑成细颗粒, 其中在添加颜料之前,同时或之后,(A)烯烃与含极性基团的烯属不饱和单体的共聚物和(B)铝或钛的金属醇盐的组合或部分反应产物是 掺入粘合剂树脂和蜡中,并且组合物在熔融状态下反应。

    Magnetic brush development method
    5.
    发明授权
    Magnetic brush development method 失效
    磁刷开发方法

    公开(公告)号:US4540645A

    公开(公告)日:1985-09-10

    申请号:US574575

    申请日:1984-01-27

    摘要: Disclosed is a magnetic brush development method comprising supplying a two-component type developer comprising a mixture of magnetic carrier particles with toner particles chargeable by friction with the magnetic carrier particles onto a developing sleeve consisting of a non-magnetic sleeve having a magnet installed therein to form a magnetic brush of the developer, and bringing the magnetic brush in sliding contact with the surface of a photosensitive material having an electrostatic latent image formed thereon in the state where a bias voltage is applied between the photosensitive material and the sleeve, whereby a toner image corresponding to the electrostatic latent image is formed, wherein the two-component type developer comprises a ferrite carrier and electroscopic toner particles at a weight ratio of from 4/1 to 20/1.

    摘要翻译: 公开了一种磁刷显影方法,其包括将包含磁性载体颗粒的混合物的二组分型显影剂与通过与磁性载体颗粒摩擦而带电的调色剂颗粒引入到由其中安装有磁体的非磁性套筒组成的显影套筒上 形成显影剂的磁刷,并且在感光材料和套筒之间施加偏置电压的状态下使磁刷与其上形成有静电潜像的感光材料的表面滑动接触,由此调色剂 形成对应于静电潜像的图像,其中双组分型显影剂包含铁素体载体和重量比为4/1至20/1的电致调色剂颗粒。

    Toner for electrophotography
    6.
    发明授权
    Toner for electrophotography 有权
    电子照相用碳粉

    公开(公告)号:US6066423A

    公开(公告)日:2000-05-23

    申请号:US266025

    申请日:1999-03-11

    IPC分类号: G03G9/08 G03G9/087 G03G9/09

    摘要: A toner for electrophotography includes a binder resin as the main component and a coloring agent, wherein the binder resin contains a low molecular weight polypropylene as a separating agent, encapsulated therein; the acid value of the binder resin is adjusted equal to 1.0 (mgKOH/g) or below; and the coloring agent has a surface which is not oxidation treated and presents a pH of 7.0 or higher. Limiting the added amount and the diameter of encapsulated and dispersed polypropylene wax provides prevention against both the setoff and filming phenomena.

    摘要翻译: 用于电子照相的调色剂包括粘合剂树脂作为主要成分和着色剂,其中粘合剂树脂含有作为分离剂的低分子量聚丙烯,被包封在其中; 将粘合剂树脂的酸值调节为1.0(mgKOH / g)以下; 并且着色剂具有未经氧化处理的表面,其pH为7.0以上。 限制包封和分散的聚丙烯蜡的添加量和直径提供了防止切割和成膜现象的预防。

    Developing device
    7.
    发明授权
    Developing device 失效
    开发设备

    公开(公告)号:US4686935A

    公开(公告)日:1987-08-18

    申请号:US760587

    申请日:1985-07-30

    IPC分类号: G03G13/09 G03G15/09

    CPC分类号: G03G15/0921 G03G13/09

    摘要: Disclosed is a development device comprising a development sleeve of a non-magnetic material, a magnet having a plurality of magnetic poles and fixed within the sleeve, a mechanism for rotating the sleeve, a mechanism for agitating a developer composed of a magnetic carrier and a chargeable toner and supplying it to the sleeve, a mechanism for adjusting a magnetic brush formed on the sleeve to a predetermined brush length and supplying it to a development zone, and a mechanism for scraping off the magnetic brush which has gone past the development zone from the sleeve, said magnetic poles consisting of a main pole for development corresponding to the development zone and poles for conveying corresponding to a conveying zone ranging from the position of supplying the developer to the position of cutting the magnetic brush, said magnetic carrier being a ferrite carrier, and each said conveying magnetic pole having a magnetic flux density 50 to 86% of that of the main pole for development.

    摘要翻译: 公开了一种显影装置,包括非磁性材料的显影套筒,具有多个磁极并固定在套筒内的磁体,用于旋转套筒的机构,用于搅拌由磁性载体和 可充电调色剂并将其供应到套筒,用于将形成在套筒上的磁刷调节到预定刷长度并将其提供给显影区的机构,以及用于刮除已经经过显影区的磁刷的机构 套筒,所述磁极由对应于显影区的显影用主极和对应于从供给显影剂的位置到切割磁刷的位置的传送区域传送的磁极组成,所述磁性载体为铁素体 并且每个所述传送磁极具有用于显影的主极的磁通密度的50至86%的磁通密度 。

    Method of developing electrostatic image with magnetic brush ear promoter
    8.
    发明授权
    Method of developing electrostatic image with magnetic brush ear promoter 失效
    用磁刷耳朵促进剂显影静电图像的方法

    公开(公告)号:US4436803A

    公开(公告)日:1984-03-13

    申请号:US360938

    申请日:1982-03-23

    CPC分类号: G03G9/0819 G03G13/09

    摘要: Disclosed is a method of developing an electrostatic image by bringing an electrostatic image-carrying surface of a substrate into sliding contact with a magnetic brush of a developer formed on a developer-feeding sleeve having a magnet arranged in the interior thereof, wherein the magnetic brush is formed from an earing-promoting component comprising particles of a dispersion of a powder of a magnetic material in a resin, which have a relatively large diameter of 70 to 300 microns, and a developer component comprising particles of a dispersion of a powder of a magnetic material in a binder medium, which have a relatively small diameter of 5 to 50 microns.

    摘要翻译: 公开了一种通过使基板的静电图像承载表面与形成在其内部具有磁体的显影剂供给套筒上形成的显影剂的磁刷滑动接触来显影静电图像的方法,其中磁刷 由包含具有70-300微米的较大直径的树脂中的磁性材料粉末的分散体的颗粒形成的促进组分和显影剂组分,所述显影剂组分包含粉末的分散体颗粒 磁性材料在粘合剂介质中,其具有5至50微米的相对小的直径。