光照人工老化原子印油色痕的分析

Study on the Changes of Stamp Inks Caused by Artificial Lighting Using HPLC

通过高效液相色谱法对光照人工老化后的原子印章色痕中的主要组分——颜料与油脂进行分析,寻找研究这些组分随时间变化的规律。为原子印章色痕形成时间的深入研究提供条件。

A study on artificial aging of stamp inks was presented. Inks for pre-filled stamps were artificially aged by UV lighting; the pigment and oil, the main components of inks, were analyzed by HPLC; and the change pattern of these components was obtained. Artificial aging caused remarkable changes of inks in a very short time. The peak area ratio between pigment and oil at different times was measured, and a curve revealing the relation between the ratio and time was drawn. The result could be used for reference in the examination of dating stamp inks.