藏文档案修复常用藏纸的性能研究

藏文档案形成用纸多为藏纸，现代藏纸的造纸原料和纸张性能与古法所造的藏纸不同，在修复藏文档案时需要使用相同或相似的藏纸。本文以现代生产的两种尼木藏纸和一种金东藏纸为试验对象，测试、分析了纸张的基本情况、纤维种类以及千热老化前后的物理、化学性能变化和紫外老化前后的光学性能变化情况。通过试验的方式验证了现代藏纸的造纸原料已发生了改变。如今的尼木藏纸、金东藏纸的造纸原料不仅仅是瑞香狼毒草、瑞香属和结香属的植物，还添加其他原料，如构皮、苹类纤维等。由三种藏纸的性能测试实验结果可知，其他原料的添加降低了藏纸的部分性能。

Archives written in Tibetan characters are mostly made of Tibetan paper. The raw materials and paper properties of modern Tibetan paper are different from those made by traditional papermaking methods. The same or similar Tibetan paper should be used when restoring Tibetan archives.This paper fo- cuses on two kinds of Nyemo paper and one kind of Jindong paper, testing and analyzing the basic condi- tions, fiber types, physical and chemical properties of paper before and after dry-heat accelerating aging, and optical properties before and after UV aging, confirming that the raw materials of modern Tibetan pa- per have changed. Nowadays, Nyemo paper and Jindong paper are not only made of plants of Steller- achamaejasme, Daphne and Edgeworthia sp., other raw materials, such as paper mulberry, grass fibers will also be added.From the results of experiments, it can be seen that the addition of other raw materials re- duces the partial properties of Tibetan paper.