Automatic deacidification machine

　　What is archives, cultural relics, and ancient books? Decaying is actually a major culprit in destroying paper. The β - glycosidic bonds in cellulose undergo hydrolysis under acid catalysis, causing the molecular chains to break and the fibers to become fragile. The reason for the sourness of paper comes from additives in the production process, air contact in the storage process, and lactic acid in human sweat during the flipping process. Due to the modern paper-making technology in our country, the paper archives in our collection from the early 20th century to the 1980s generally experienced acidification, and it was necessary to remove the acid in order to prevent the gradual damage of the archive paper. The research team for advanced paper deacidification protection technology was established in 2019, with research areas including paper deacidification equipment and materials, intelligent and automated paper repair equipment, and development of paper analysis and detection instruments and equipment. The non-aqueous dispersed deacidification material based on metal oxide and inert organic solution suspension developed by the team can completely replace imported products in terms of deacidification effect and safety; The advanced paper deacidification intelligent protection system developed is based on a non-aqueous dispersion system deacidification process, with large-scale immersion deacidification equipment as the core and deacidification workbenches and pre-treatment/post-treatment devices as auxiliary. It breaks through key technologies such as pulsating vacuum drying and static atmospheric pressure reaction, and is a complete set of automated, intelligent, and highly available systems for batch deacidification. These achievements have overcome the bottleneck technology of paper deacidification, achieving independent research and development of major equipment in the cultural field and ensuring safety and controllability.

　　A large number of precious ancient books and materials are preserved in major domestic libraries and museums. They are the essence of the excellent traditional culture of the Chinese nation and can not be copied. However, with the passage of time, the situation of insect infestation, acidification, mold growth, and damage to ancient book paper has become increasingly serious, and the situation is precarious. Seeking more scientific and sustainable methods to protect ancient books has become a common focus and consensus in the academic community. Acidification is a major cause of damage to ancient books, and it is urgent to carry out deacidification, enhancement, and restoration of ancient books. This article first elaborates on the reasons for the acidification of ancient books and some existing methods for deacidification of ancient books. Then, it summarizes the methods and equipment for deacidification and restoration of ancient books at home and abroad, analyzes the advantages and disadvantages of these deacidification and restoration equipment, and provides some prospects for future research on deacidification and restoration of ancient books.

　　We have briefly introduced the automatic deacidification machine here. If you want to know about customized purchasing, please contact our staff, and we will be happy to serve you!

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