Disclosed is an ink composition suitable for ink jet printing comprising a luminescent compound, a solvent, and an energy active compound, and optionally a non-luminescent colorant. The energy active compound, when exposed to energy, generates one or more active species that can react with the luminescent compound to alter one or more of the characteristics of the luminescent compound. The luminescent compound can be colored or colorless. Also disclosed is a method for marking substrates comprising providing a mark comprising a luminescent compound and an energy active compound. Further disclosed is a jet ink composition suitable for printing on substrates authentication or security marks which can be rendered unreadable. The luminescence of the mark is quenched and the visible color is changed when irradiated with a light.
本发明公开了一种适用于喷墨打印的油墨组合物,该组合物包含一种发光化合物、一种溶剂和一种能量活性化合物,以及可选的一种非发光
着色剂。能量活性化合物在暴露于能量时,会产生一种或多种活性物质,这些活性物质可与发光化合物发生反应,从而改变发光化合物的一种或多种特性。发光化合物可以是有色或无色的。本发明还公开了一种标记基底的方法,包括提供一种包含发光化合物和能量活性化合物的标记。进一步公开的是一种喷墨组合物,适用于在基底上打印认证或防伪标志,可使其变得不可读。当用灯光照射时,标记的发光被熄灭,可见光颜色发生变化。