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    • 3. 发明申请
    • Nano-engineered transparent and fluorescent colorants
    • 纳米工程透明和荧光着色剂
    • US20070076233A1
    • 2007-04-05
    • US11238460
    • 2005-09-29
    • David LeeEdwin HiraharaDavid Wallack
    • David LeeEdwin HiraharaDavid Wallack
    • H04N1/60
    • H04N1/54C09D11/037C09D11/328
    • A method is provided for manufacturing a new class of transparent and fluorescent colorants, such as printing inks suitable for use in process printing or non-process printing. The method includes generally two steps. In one embodiment, first, one or more types of fluorescent nanodots, or nanocrystal fluorophores, are selected for creating an ink of a predefined color. Second, the selected nanodots are combined (e.g., by doping process) with a transparent base ink to create a transparent and fluorescent ink of the predefined color. Due to the wide color variety of nanodots, such transparent and fluorescent printing inks may be produced as primaries in more colors than conventional transparent or fluorescent inks, and further can be selectively combined (i.e., overprinted) to create an unlimited number of secondary and tertiary colors. Still, further, the fluorescent nature of these inks render the resulting color images extremely bright and vivid, to add a further aesthetic appeal to the graphical designs when printed using these inks.
    • 提供了一种用于制造新类型的透明和荧光着色剂的方法,例如适用于工艺印刷或非工艺印刷的印刷油墨。 该方法通常包括两个步骤。 在一个实施方案中,首先,选择一种或多种类型的荧光纳米点或纳米晶体荧光团以产生预定颜色的墨。 第二,将所选择的纳米点与透明基底油墨组合(例如通过掺杂工艺)以产生预定颜色的透明和荧光墨水。 由于纳米点的颜色多样,这种透明和荧光印刷油墨可能被制成比常规透明或荧光油墨更多的颜色的原色,并且还可以选择性地组合(即,套印)以产生无限数量的二级和三级 颜色。 此外,这些油墨的荧光性质使得所得到的彩色图像非常明亮和生动,以便在使用这些油墨打印时对图形设计增添了更美观的吸引力。