碱性纸的产量和用量日益增加,这对于图书、档案的保存具有重要意义。含有明矾或松脂的纸在短期内不会因为酸化作用而变质,用碱性纸印刷的书籍和制成的文件也是这样,如果把它们保存在可进行严格气候控制的环境里,相对来说,则会免遭硫酸、氧化亚氮和城市浑浊的空气中其他污染物的侵蚀。即使过一 The production and usage of alkaline paper are increasing day by day, which is of great significance for the preservation of books and files. The paper containing alum or rosin will not deteriorate in the short run due to acidification. The same is true for books and documents made from basic paper, and if they are stored in a climate-controlled environment. In contrast, It will be protected against the attack of sulfuric acid, nitrous oxide and other pollutants in the turbid air of the city. Even after one