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    • 5. 发明授权
    • Dry developer for electrostatic image with Al or Ti alkoxide
    • 用Al或Ti醇盐静电显影的干燥显影剂
    • US4409312A
    • 1983-10-11
    • US351445
    • 1982-02-23
    • Toshimitsu IkedaNobuyasu HondaTetsuya Nakano
    • Toshimitsu IkedaNobuyasu HondaTetsuya Nakano
    • G03G9/087G03G9/097G03G9/08G03G9/14
    • G03G9/08753G03G9/08793G03G9/09783
    • 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.
    • 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。
    • 8. 发明授权
    • Developing device
    • 开发设备
    • US4686935A
    • 1987-08-18
    • US760587
    • 1985-07-30
    • Toshikazu MatsuiAkira FushidaNobuyasu HondaMinoru NakaoNobuyuki Tsuji
    • Toshikazu MatsuiAkira FushidaNobuyasu HondaMinoru NakaoNobuyuki Tsuji
    • G03G13/09G03G15/09
    • G03G15/0921G03G13/09
    • 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.
    • 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 。