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    • 28. 发明授权
    • Toner and liquid composition using same
    • 调色剂和液体组合物使用相同
    • US5407771A
    • 1995-04-18
    • US5703
    • 1993-01-19
    • Benzion LandaPeretz Ben-AurahamJoseph HallGeorge A. Gibson
    • Benzion LandaPeretz Ben-AurahamJoseph HallGeorge A. Gibson
    • G03G9/12G03G9/087G03G9/13
    • G03G9/12Y10T428/2927
    • A liquid composition for developing latent electrostatic images comprising toner particles associated with a pigment dispersed in a nonpolar liquid. The salient feature of the invention is that the toner particles are formed with a plurality of fibers or tendrils from a thermoplastic polymer and carry a charge of a polarity opposite to the polarity of the latent electrostatic image. The polymer is insoluble or insolvatable in the dispersant liquid at room temperature. The toner particles are formed by plasticizing the polymer and pigment at elevated temperature and then either permitting a sponge to form and wet-grinding pieces of the sponge or diluting the plasticized polymer-pigment while cooling and constantly stirring to prevent the forming of a sponge while cooling. When cool, the diluted composition will have a concentration of toner particles formed with a plurality of fibers.
    • 一种用于显影静电潜像的液体组合物,其包含与分散在非极性液体中的颜料相关联的调色剂颗粒。 本发明的显着特征在于,调色剂颗粒由热塑性聚合物的多根纤维或卷须形成,并带有与静电潜像的极性相反极性的电荷。 聚合物在室温下不溶于或不可分散在分散剂液体中。 调色剂颗粒通过在高温下使聚合物和颜料增塑而形成,然后允许海绵形成和湿磨海绵片,或者在冷却和不断搅拌的同时稀释增塑聚合物颜料,以防止形成海绵,同时 冷却。 当冷却时,稀释的组合物将具有由多根纤维形成的调色剂颗粒的浓度。