采用激光显微拉曼光谱技术，选择10种不同品牌和型号的印泥（油）盖印印文的历时性样本，利用印文拉曼光谱中的1089 cm^-1和1235 cm^-1处特征峰的相对面积值（I）分析纸张、温度、热老化因素对印文形成时间的影响，探讨盖印时间与峰面积相对值（I）的关系。结果表明，I值随时间呈现规律性变化，尤其在近期内盖印印文的变化规律明显，适用于印文形成时间的鉴别，是一种准确、无损的检验方法。

Objective taking advantage of Micro-Raman spectroscopy technology , samples of inkpad seals were impressed with 10 different brands of inks. To analysis the factors of paper，temperature and heat condition by relative area value（I）of characteristic peaks with 1089 cm^-1 and 1235 cm^-1 in Raman spectrum, in order to discuss the relation between relative area value （I） and dating of inkpad seals. The relative area value (I) showed a regular change with time, especially the stamp of impression in the near time . Micro-Raman spectroscop is a useful method  with accurate, non-destructive properties to determine the formation time of inkpad seals.