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    • 72. 发明申请
    • Solvent-less process for producing transient documents
    • 用于生产瞬态文件的无溶剂过程
    • US20050287475A1
    • 2005-12-29
    • US11215950
    • 2005-08-30
    • Gabriel IftimePeter KazmaierNaveen ChopraSan-Ming YangRaymond W. Wong
    • Gabriel IftimePeter KazmaierNaveen ChopraSan-Ming YangRaymond W. Wong
    • G03C1/685G03C1/73G03C5/56G03C1/492
    • G03C1/73G03C1/685Y10S430/136Y10S430/163
    • A solvent-less process for producing a transient document which is capable of self-erasing, wherein the solvent-less process includes a) heating and reacting a photochromic compound and a polymer to form a coating composition, and b) coating the coating composition onto an image-receiving side of a transient document substrate, and further an image forming method using the same solvent-less process and including (i) providing a reimageable medium of a substrate and a photochromic material, wherein the medium is capable of exhibiting a color contrast and an absence of the color contrast; (ii) exposing the medium to an imaging light corresponding to a predetermined image to result in an exposed region and a non-exposed region, wherein the color contrast is present between the exposed region and the non-exposed region to allow a temporary image corresponding to the predetermined image to be visible for a visible time; (iii) subjecting the temporary image to an indoor ambient condition for an image erasing time to change the color contrast to the absence of the color contrast to erase the temporary image without using an image erasure device; and (iv) optionally repeating procedures (ii) and (ii) a number of times to result in the medium undergoing a number of additional cycles of temporary image formation and temporary image erasure.
    • 一种用于生产能够自擦除的瞬态文件的无溶剂方法,其中无溶剂方法包括:a)将光致变色化合物和聚合物加热和反应以形成涂料组合物,和b)将涂料组合物涂布到 瞬时原稿基板的图像接收侧,以及使用相同无溶剂工艺的图像形成方法,并且包括(i)提供基板和光致变色材料的可再成像介质,其中该介质能够呈现颜色 对比度和缺乏色彩对比度; (ii)将介质暴露于与预定图像相对应的成像光,以产生曝光区域和未曝光区域,其中在曝光区域和非曝光区域之间存在颜色对比度,以允许临时图像对应 到预定图像以在可见时间内可见; (iii)使临时图像经历室内环境条件以获得图像擦除时间,以将颜色对比度改变为不存在色彩对比度以擦除临时图像而不使用图像擦除装置; 和(iv)可选地重复上述步骤(ii)和(ii)多次以导致介质经历多次临时图像形成和临时图像擦除的附加循环。
    • 79. 发明授权
    • Liquid developer
    • 液体显影剂
    • US4762764A
    • 1988-08-09
    • US946548
    • 1986-12-23
    • Dominic S. NgRaymond W. WongMelvin D. Croucher
    • Dominic S. NgRaymond W. WongMelvin D. Croucher
    • G03G9/12G03G9/13G03G9/135
    • G03G9/1355G03G9/131G03G9/135
    • A stable colored liquid developer comprising an insulating organic liquid dispersion medium having dispersed therein negatively charged marking particles comprising a thermoplastic resin core substantially insoluble in the dispersion medium, an amphipathic copolymeric steric stabilizer irreversibly anchored to the thermoplastic resin core, the steric stabilizer being soluble in the dispersion medium, a colored dye imbibed in the thermoplastic resin core, the dye being soluble in the thermoplastic resin core and insoluble in the dispersion medium and a charge control agent selected from the group consisting of a polybutene succinimide, lecithin, basic barium petroleum sulfonates, and mixtures thereof. This liquid developer may be employed to develop electrostatic latent images either on dielectric paper or on an electroreceptor or photoreceptor substrate and the resulting toner image may be transferred to another surface by tape transfer.
    • 一种稳定的着色液体显影剂,包括绝缘有机液体分散介质,其中分散有带负电荷的标记颗粒,其包含基本上不溶于分散介质的热塑性树脂芯,不可逆地锚定在热塑性树脂芯上的两亲性共聚空间稳定剂,空间稳定剂可溶于 分散介质,吸附在热塑性树脂芯中的着色染料,该染料可溶于热塑性树脂核心并且不溶于分散介质中,以及选自聚丁烯琥珀酰亚胺,卵磷脂,碱式石油磺酸钡的电荷控制剂 ,及其混合物。 该液体显影剂可用于在电介质纸或电感受器或感光体基底上显影静电潜像,并且所得到的调色剂图像可以通过带转印转移到另一表面。