判定朱墨时序是污损文件检验的一个重要任务。但是在案件鉴定过程中发现朱、墨两种均为油性色料条件下产生的互溶,使交叉点表现特征发生变化。经过模拟实验对互溶后特征进行了阐述,并提出了鉴定时应注意的问题。 Judging the timing of the ink is an important task for the inspection of defaced documents. However, during the identification of the case, Zhu and Mo were found to be miscible with each other under oily colorants, resulting in changes in the cross-point performance characteristics. Through the simulation experiments, the characteristics of mutual solubility are elaborated, and the problems that should be paid attention to in identification are put forward.