Dry developer with polyethylene powder
    3.
    发明授权
    Dry developer with polyethylene powder 失效
    干燥显影剂用聚乙烯粉末

    公开(公告)号:US5085963A

    公开(公告)日:1992-02-04

    申请号:US584638

    申请日:1990-09-19

    CPC分类号: G03G9/097 G03G9/08704

    摘要: A dry developer for an electrophotographic process, said dry developer being composed of a toner and a dispersion type carrier composed of a resin and a magnetic powder, wherein polyethylene having a molecular weight of not larger than 10,000, a density of at least 0.95, and an average volume diameter of not larger than 15 .mu.m is externally added to the toner or directly mixed with the developer. The dry developer shows good fluidity and cleaning property, is excellent in environmental stability and durability, and can prevent the occurrence of the toner film phenomenon on a photoreceptor or carrier surfaces.

    摘要翻译: 一种用于电子照相方法的干燥显影剂,所述干燥显影剂由调色剂和由树脂和磁性粉末组成的分散型载体组成,其中分子量不大于10,000的聚乙烯,至少0.95的密度,和 平均体积直径不大于15μm,外部添加到调色剂中或直接与显影剂混合。 干燥显影剂显示出良好的流动性和清洁性,环境稳定性和耐久性优异,并且可以防止感光体或载体表面上的调色剂膜现象的发生。

    Toner for developing electrostatic image and image formation process
using the toner
    5.
    发明授权
    Toner for developing electrostatic image and image formation process using the toner 失效
    用于显影静电图像的调色剂和使用调色剂的成像方法

    公开(公告)号:US5643705A

    公开(公告)日:1997-07-01

    申请号:US540025

    申请日:1995-09-28

    CPC分类号: G03G9/08782

    摘要: The present invention provides a toner for developing an electrostatic image which inhibits the filming of a wax on the development sleeve and photoreceptor to obtain a stable image. The present invention also provides a toner for developing an electrostatic image which provides a practically sufficiently wide fixing latitude. The present invention further provides an image formation process for forming a copied image with an excellent dot reproducibility, fine line reproducibility and gradation. A novel toner for developing an electrostatic image is provided, which comprises a particulate toner containing a polyolefin wax and a modified polyolefin wax, wherein the average diameter of wax particles dispersed in the particulate toner is not more than 0.5 .mu.m and the amount of wax exposed on the surface of said particulate toner is from 40 to 65% by weight. The particulate toner may comprise a finely divided magnetic powder in an amount of from 30 to 70% by weight. The content of modified polyolefin wax in the particulate toner is preferably greater than that of polyolefin wax.

    摘要翻译: 本发明提供一种用于显影静电图像的调色剂,其抑制显影套筒和感光体上的蜡的成膜以获得稳定的图像。 本发明还提供一种用于显影静电图像的调色剂,其提供了实际上足够宽的固定宽度。 本发明还提供了一种用于形成具有优异的点再现性,细线再现性和灰度的复印图像的图像形成处理。 提供了用于显影静电图像的新型调色剂,其包含含有聚烯烃蜡和改性聚烯烃蜡的颗粒调色剂,其中分散在颗粒调色剂中的蜡颗粒的平均直径不大于0.5μm,蜡的量 在所述颗粒调色剂的表面上暴露的重量比为40-65%。 颗粒调色剂可以包含30至70重量%的细碎磁粉。 颗粒调色剂中改性聚烯烃蜡的含量优选大于聚烯烃蜡的含量。

    Toner composition for electrostatic charge development and image forming
process using the same
    7.
    发明授权
    Toner composition for electrostatic charge development and image forming process using the same 失效
    用于静电荷显影的调色剂组合物和使用其的成像方法

    公开(公告)号:US5612159A

    公开(公告)日:1997-03-18

    申请号:US518995

    申请日:1995-08-24

    CPC分类号: G03G9/09716 G03G13/08

    摘要: A toner composition for electrostatic charge development having high cleaning property and inhibiting wear of a photoreceptor, filming and deletion. The toner composition comprises toner particles and fluorine-containing cerium oxide fine particles added to the toner particles. The fluorine content of the fluorine-containing cerium oxide fine particles is from 0.1 to 10% by weight. The toner composition is used in an image forming process comprising the steps of (a) charging a latent image carrier, (b) forming an electrostatic latent image on the latent image carrier, (c) developing the electrostatic latent images with a developing agent to form a toner image, (d) transferring the resulting toner image to a receiving material, and (e) removing a toner remaining on the latent image carrier.

    摘要翻译: 用于静电荷显影的调色剂组合物具有高清洁性能并抑制感光体的磨损,成膜和缺失。 调色剂组合物包含调色剂颗粒和添加到调色剂颗粒中的含氟氧化铈细颗粒。 含氟氧化铈微粒的氟含量为0.1〜10重量%。 调色剂组合物用于图像形成方法,包括以下步骤:(a)将潜像载体充电,(b)在潜像载体上形成静电潜像,(c)用显影剂将静电潜像显影至 形成调色剂图像,(d)将所得到的调色剂图像转印到接收材料,和(e)除去残留在潜像载体上的调色剂。

    Electrostatic charge developing toner composition and image-forming
process
    8.
    发明授权
    Electrostatic charge developing toner composition and image-forming process 失效
    静电荷显影调色剂组合物和成像工艺

    公开(公告)号:US5612160A

    公开(公告)日:1997-03-18

    申请号:US523136

    申请日:1995-09-05

    摘要: An electrostatic charge developing toner composition comprising (i) toner particles containing a low-molecular weight polypropylene wax and/or a low-molecular weight polyethylene wax, having a volume average particle size of from 4 to 9 .mu.m, and an exposed amount (X% by weight) of the wax on the surface of the toner in the range of 40.ltoreq.X.ltoreq.65, and (ii) abrasive fine particles having an average particle size of from 0.5 to 5.5 .mu.m, and an image-forming process using the toner.By the toner composition, the occurrence of filming with the wax in the toner particles is prevented and images excellent in the development stability with the passage of time can be formed.

    摘要翻译: 一种静电荷显影调色剂组合物,其包含(i)包含体积平均粒度为4至9μm的低分子量聚丙烯蜡和/或低分子量聚乙烯蜡的调色剂颗粒和曝光量( X重量%)在调色剂表面上的蜡在40%≤65范围内,和(ii)平均粒度为0.5-5.5μm的磨料细颗粒,和 使用调色剂的图像形成处理。 通过该调色剂组合物,可以防止在调色剂颗粒中发生与蜡的成膜,并且可以形成显影稳定性随时间优异的图像。

    Carrier for developer
    9.
    发明授权
    Carrier for developer 失效
    开发商承运人

    公开(公告)号:US5110703A

    公开(公告)日:1992-05-05

    申请号:US496138

    申请日:1990-03-19

    IPC分类号: G03G9/10

    CPC分类号: G03G9/10

    摘要: A carrier for use in developing an electrostatic or magnetic latent image in electrophotography, electrostatic recording, electrostatic printing or the like, which carrier is produced by atomizing a molten mixture of a magnetic powder and a binder resin containing a polyolefin and a polyolefin having a functional group. The polyolefin having a functional group is present in an amount ranging from about 50% by weight or less based on the total weight of the binder resin.

    摘要翻译: 用于显影电子照相,静电记录,静电印刷等中的静电或磁潜像的载体,该载体通过使包含聚烯烃和具有官能团的聚烯烃的磁性粉末和粘合剂树脂的熔融混合物雾化来制造 组。 具有官能团的聚烯烃的存在量为约50重量%以下,基于粘合剂树脂的总重量。

    Developer carrier and process for producing the same
    10.
    发明授权
    Developer carrier and process for producing the same 失效
    开发者载体及其制造方法

    公开(公告)号:US4868083A

    公开(公告)日:1989-09-19

    申请号:US77727

    申请日:1987-07-27

    IPC分类号: G03G9/10

    CPC分类号: G03G9/10

    摘要: A process for producing a developer carrier is disclosed, which comprises heating a carrier composition containing a resin, magnetic particles and a compound having a lower critical surface energy than the resin, to produce a carrier particle having a higher surface concentration of the compound having a lower critical surface energy. A developer carrier having an average particle size of at least about 50 .mu.m and containing a fluorine-containing compound and fine magnetic particles dispersed in a binder resin is also disclosed. The developer carriers according to the invention when used in magnetic brush development provide superior charge generation, extended life and improved image reproduction.

    摘要翻译: 公开了一种制造显影剂载体的方法,其包括加热含有树脂,磁性颗粒和具有比树脂低的临界表面能的化合物的载体组合物,以产生具有较高表面能的化合物的载体颗粒, 降低临界表面能。 还公开了具有至少约50μm的平均粒度并含有含氟化合物和分散在粘合剂树脂中的细小磁性颗粒的显影剂载体。 当用于磁刷显影时,根据本发明的显影剂载体提供优异的电荷产生,延长的寿命和改进的图像再现性。