TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE
    21.
    发明申请
    TONER FOR DEVELOPING ELECTROSTATIC LATENT IMAGE 审中-公开
    用于开发静电图像的调色剂

    公开(公告)号:US20080032226A1

    公开(公告)日:2008-02-07

    申请号:US11868618

    申请日:2007-10-08

    IPC分类号: G03G9/08

    摘要: An improved toner comprises a binder resin comprising a urea-modified polyester resin; a colorant master batch comprising a colorant; a resin; and a pigment dispersant. The toner is prepared by a method comprising dissolving or dispersing toner compositions including a modified polyester resin capable of forming the urea-modified polyester resin and the colorant master batch in an organic solvent to provide a liquid; dispersing the liquid in an aqueous medium including resin fine particles while reacting the modified polyester resin with at least one of a crosslinker and an elongation agent to provide particles; and washing the particles after removing the organic solvent therefrom.

    摘要翻译: 改进的调色剂包括含有脲改性聚酯树脂的粘合剂树脂; 包含着色剂的着色母料; 树脂; 和颜料分散剂。 调色剂通过以下方法制备:包括将能够形成脲改性聚酯树脂的改性聚酯树脂和着色剂母料溶解或分散在有机溶剂中以提供液体的调色剂组合物; 在将改性聚酯树脂与交联剂和伸长剂中的至少一种反应的同时使液体分散在含有树脂细颗粒的水性介质中,以提供颗粒; 并从其中除去有机溶剂后洗涤颗粒。

    Toner preparation method and apparatus, and toner prepared thereby
    27.
    发明授权
    Toner preparation method and apparatus, and toner prepared thereby 有权
    调色剂制备方法和装置,以及由此制备的调色剂

    公开(公告)号:US08568628B2

    公开(公告)日:2013-10-29

    申请号:US12120379

    申请日:2008-05-14

    IPC分类号: G03G9/087 B29B9/10

    摘要: A method of preparing a toner, including periodically dripping and discharging droplets of a toner constituent liquid comprising a resin and a colorant with a dripper comprising a thin film comprising plural nozzles configured to discharge the droplets, and an electromechanical converter configured to oscillate the thin film; and solidifying the droplets to form toner particles, wherein the nozzle has an aperture discharging the droplet, having a circular or an ellipsoidal cross-sectional shape and cross-sectional area smaller than a cross-sectional area of another aperture contacting the toner constituent liquid.

    摘要翻译: 一种制备调色剂的方法,包括用滴液器周期性地滴落和排出包含树脂和着色剂的调色剂组分液体的液滴,所述滴液器包括由构造成排出液滴的多个喷嘴构成的薄膜;以及机电转换器,其被配置为使薄膜振荡 ; 并且使所述液滴固化以形成调色剂颗粒,其中所述喷嘴具有排出所述液滴的孔,所述孔具有圆形或椭圆形横截面形状,并且横截面积小于与所述调色剂构成液接触的另一孔的横截面面积。

    Electrophotographic toner and method for producing the electrophotographic toner
    29.
    发明授权
    Electrophotographic toner and method for producing the electrophotographic toner 有权
    电子照相调色剂和用于制备电子照相调色剂的方法

    公开(公告)号:US08110332B2

    公开(公告)日:2012-02-07

    申请号:US12036706

    申请日:2008-02-25

    IPC分类号: G03G9/08

    摘要: Provided are an electrophotographic toner and a method for producing the electrophotographic toner that satisfy high image quality, cleaning stability, and high productivity.The electrophotographic toner is produced by spray-drying a toner ingredient-containing liquid, wherein the toner ingredient-containing liquid dissolves or disperses at least a resin, a low molecular mass organic material, and a colorant in an organic solvent, the resin is soluble in the organic solvent, the low molecular mass organic material is a crystalline compound or a composition of crystalline compounds that is soluble in the organic solvent, the toner ingredient-containing liquid contains substantially no particles having a particle diameter of 500 nm or more, the crystalline compound or the composition of crystalline compounds crystallizes upon spray-drying to deform toner particles into a circularity of 0.93 or higher to 0.98 or less, and volume average particle diameter of the toner particles is 3.0 μm or higher to less than 7.0 μm.

    摘要翻译: 提供了一种电子照相调色剂和一种能够满足高图像质量,清洁稳定性和高生产率的电子照相调色剂的制造方法。 电子照相调色剂通过喷雾干燥含调色剂成分的液体来制造,其中含有调色剂成分的液体至少在有机溶剂中溶解或分散至少一种树脂,低分子量有机材料和着色剂,该树脂是可溶的 在有机溶剂中,低分子量有机材料是可溶于有机溶剂的结晶化合物或结晶化合物的组合物,含调色剂成分的液体基本上不含粒径为500nm以上的粒子, 结晶化合物或结晶化合物的组合物在喷雾干燥时结晶,使调色剂颗粒变为0.93或更高至0.98或更小的圆形度,调色剂颗粒的体积平均粒径为3.0μm以上至小于7.0μm。

    Image forming apparatus, image forming method and process cartridge
    30.
    发明授权
    Image forming apparatus, image forming method and process cartridge 有权
    图像形成装置,图像形成方法和处理盒

    公开(公告)号:US07892718B2

    公开(公告)日:2011-02-22

    申请号:US11738149

    申请日:2007-04-20

    IPC分类号: G03G9/087

    摘要: Provided are image forming apparatuses, image forming methods, and process cartridges using a toner that is excellent in low temperature fixing ability, hot offset resistance, and storage stability, and also generate less odor, and thus that can provide high quality images with superior fixing ability, far from tone change with time, and less likely to occur abnormal images such as density-drop and background smear. The image forming apparatuses comprise a latent electrostatic image bearing member, a charging unit, an exposing unit, a developing unit, a transfer unit, and a fixing unit, wherein the toner comprises a binder resin and a colorant, the binder resin comprises a polyester resin prepared by condensation polymerization between an alcohol component that contains an aliphatic polyvalent alcohol and a carboxylic acid component that contains (meth)acrylic acid-modified rosin.

    摘要翻译: 提供了使用具有优异的低温定影能力,耐热偏移性和储存稳定性的调色剂的图像形成装置,成像方法和处理盒,并且还产生较少的气味,因此可以提供具有优良定影的高质量图像 能力,远离音调随时间变化,并且不太可能发生异常图像,如密度下降和背景涂片。 图像形成装置包括静电潜像承载部件,充电单元,曝光单元,显影单元,转印单元和定影单元,其中调色剂包括粘合剂树脂和着色剂,粘合剂树脂包括聚酯 通过含有脂肪族多元醇的醇成分和含有(甲基)丙烯酸改性松香的羧酸成分之间的缩聚而制备的树脂。