不同盖印压力下光敏印章印文直径变化规律研究

Tiny Variation of Diameters of Photosensitive Seals under Different Stamping Pressures

印章印文的规格特征是印文检验的重要内容之一,但国内文检工作者对于印章印文形变的专门性研究并不多,实践中大多是在依靠经验做出判断。很多检验人员认为随着盖印压力的增大,印章的印面就会发生一定程度的膨胀,导致盖印出的印文的直径通常就会增大,但这一规律对于光敏印章是否适用还缺乏相关实验验证。因此,本文通过控制变量的实验方法,探究了光敏印章在不同的盖印压力下印文直径的变化规律。本实验的结果表明:同一枚光敏印章在恒定盖印压力下,其印文直径变化非常小,与盖印次数之间没有直接的相关性;在不同的盖印压力下,同一枚光敏印章印文的直径总体变化也非常小,与盖印压力的变化不成正比。

The print＇s size is important to test the relevant seal. However, there are few researches on the deformation of seals and most examiners make judgment based on their practical experience. They believe that the surface of one seal will expand to some extent with the stamping pressure increasing so that the seal＇s diameter will probably enlarge. Whether such a judgment is right for photosensitive seals remains to be verified. Thus, this paper tried to explore the diameters of photosensitive seals to vary under different stamping pressures by the controlled variables. The results showed that the diameter of one same photosensitive seal changes very small regardless of the same or different stamping pressure（s）, and no direct correlation exists with the times of stamping. The stamping pressure is not proportional to the diameter＇s tiny variation.