Invention Grant
US07674326B2 Fluorescent phase change inks 有权
荧光相变油墨

Fluorescent phase change inks
Abstract:
Disclosed is a phase change ink containing a fluorescent colorant that upon exposure to activating energy fluoresces such that an image that was not visible prior to exposure to the activating energy becomes visible. Also disclosed are an ink jet system and a process for authenticating a color document using the disclosed phase change ink.
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