Archivals protection technology is a branch of archival science. A discipline that studies the changing laws of archive materials and archive protection techniques and methods. The aim is to maximize the life of the archive. Historical evolution Countries around the world have accumulated rich archives protection technology and experience since ancient times. Ancient Egypt has long known about protecting papyrus archives according to weather conditions, encasing scrolls in wooden or ivory barrels to protect them from insects, dust and moisture. Books related to ancient seals: The Indians sandwiched palm leaf manuscripts between wooden boards or ivory boards, wrapped the outside with a layer of fabric, and used cedar oil and saffron to smear it to prevent insects. European countries also have rich experience in sheepskin processing, softening, smoothing and insect protection. In ancient China, archives have been kept in the traditional way of stone chambers and gold cabinets. In the Eastern Han Dynasty, paper was dyed with yellow barberry to prevent insects. In the Song Dynasty, Sichuan pepper liquid was used to treat the paper. In the Ming Dynasty, "Wannianhong" anti-worm paper with lead as the main component was used as the cover. or packaging. The mounting technology of paper archives also has a long history, such as the production and anti-corrosion of paste, the selection of paper raw materials, decontamination, repair, dyeing and decoration, etc.; the "Decoration Chronicle" written by Zhou Jiazhou in the Ming Dynasty is about mounting Summary of technology. The study of archival protection technology as a subject was formed in a few countries in modern times. In the Soviet Union, it was formed in the 1940s. In 1950, "Technology of Document Material Storage" co-authored by Л.Я. Mizin and Н.A. Tserevijnov was published. China translated and published Soviet works in 1957 and made conservation technology a required course for archives majors in colleges and universities. In 1961, "Archivals Protection Technology" edited by Feng Leyun was published, and in 1984, "Archivals Protection Technology" edited by Li Hongjian was published, indicating that this discipline has been developed and improved in China. Research content: ①Durability of materials made of archives. Study the relationship between raw material characteristics, chemical composition, production process, product quality and archive durability of various archive materials, and study the standards of archive materials. ② Archive storage environment and measures. Study the physical and chemical factors that affect archives in the surrounding environment, as well as preventive measures, including improving archives warehouse buildings and equipment, and strengthening technical measures for archives management, such as adjusting warehouse temperature and humidity, preventing light, and preventing harmful gases , dustproof, fireproof, waterproof, anti-mechanical wear, etc. ③ Archive pest control. Study the microorganisms that harm archives and methods to prevent archives from becoming moldy. Study the living habits and control methods of archive pests. Research damage archives for rodent control. ④File repair technology. Research the basic principles and techniques of archive restoration, including decontamination, acid removal, and reinforcement techniques, display and restoration techniques for degraded handwriting, traditional mounting techniques, and restoration techniques for special forms and severe damage. ⑤File copying technology. Study the principles, characteristics and technical requirements of archival reproduction and quality control of reproductions.