蓝色圆珠笔字迹色痕傅里叶变换显微红外光谱法的无损分析

Nondestructive Identification of Ballpoint Writing Inks With Fourier Transform Infrared Microscope

利用傅里叶变换显微红外光谱法中的微区衰减全反射采样技术无损测定了纸张上圆珠笔油墨所形成的字迹色痕,获得了10种不同圆珠笔字迹的显微红外光谱图.结果表明,笔迹色痕的微区衰减全反射谱图可明显地识别色料和溶剂的结构组成;快速地分辨各生产厂家油墨的差异;同时,纸张的不同,字迹书写的深浅均可快速、准确地进行无损分析.

fourier transform infrared microscope(FTIR Microscope) was used to identify the components of ballpoint writing inks on some paper. The result indicates that inks form different companies could be differentiated apparently, and data of dye and solvent in ink could be acquired rapidly. In addition, FTIR Microscope could also identify the writing density and the type of writing paper. All these suggested that FTIR Microscope is a good nondestructive technique to identify ballpoint-writing inks.