A cultural relic fumigation process

Abstract

The invention discloses a process for fumigation of cultural relics, which includes the following operations: put fumigant and cultural relics into a fumigation box, fumigate at 20-45°C for 1-72 hours, depressurize and pump air for 1-24 hours, and ventilate and replace Air for 1 to 48 hours, open the fumigation box, and remove the cultural relics; the fumigant is a compound with the chemical structure shown in the general formula I and a compound with the chemical structure shown in the general formula II or / and a chemical compound with the chemical structure shown in the general formula III: Complexes of compounds of structure. Experiments have proved that the use of the fumigant of the present invention can achieve safe and effective prevention and control of common pests and mildew diseases of cultural relics, and is environmentally friendly; , bacteria, and pests are treated at one time, and the cultural relics after the fumigation treatment of the present invention can be placed in the cultural relics collection environment for at least half a year without regenerating mold, bacteria, and pests.

Description

technical field [0001] The invention relates to a fumigation process for cultural relics and belongs to the technical field of cultural relics preservation. Background technique [0002] As a class of items with special social value, cultural relics can reflect the culture, scientific and technological level and production conditions at that time from all aspects of society, as well as the living preferences, habits and conditions of people at all levels of society at that time. irreplaceable important role. Therefore, the protection of cultural relics is of great significance. [0003] Since a considerable part of the cultural relics in the collection are organic cultural relics of various materials, such as silk, bamboo, cotton, paper, fur, lacquered wood, etc., the organic components in the cultural relics can provide a large amount of enrichment for the growth and physiological metabolism of microorganisms and pests. Therefore, the degree of damage caused by microorgan...

AI Technical Summary

Problems solved by technology

Although these existing methods can achieve insecticidal and sterilizing effects to a certain extent, each has its own shortcomings, for example: nitrogen kills insects for a long time, and the tolerance of different insects to high-purity nitrogen varies significantly ;Because carbon dioxide is weakly acidic, it will affect the material being processed under high humidity conditions, especially the material containing lead oxide, which will generate carbonate in a short time; ethylene oxide is an explosive substance and has Denaturation; methyl bromide has poor bactericidal ability, and since the ninth "Montreal Protocol Conference of the Parties" in 1997, developed countries have agreed to phase out the use of methyl bromide from 2005, and according to the Montreal Protocol, by 2015, my country will also The use of methyl bromide will be banned; sulfuryl fluoride is difficult to penetrate into water-containing eggs due to its hydrophobicity, so the egg killing ability is poor, and the deposition of fluoride has the risk of poisoning human bones

In addition, the greenhouse effect of sulfuryl fluoride is significant, and the greenhouse effect caused by the emission of sulfuryl fluoride is about 5000 times that of the equivalent amount of carbon dioxide! Therefore, research and development of a safe and environmentally friendly preservation method for cultural relics that can effectively prevent insects and mildew, do not affect the material of cultural relics and human health, and do not pollute the environment is a major problem that needs to be solved urgently in front of cultural relics protection workers all over the world. problem

[0006] Although the fumigation and disinfection method for cultural relics disclosed in Chinese patent CN201310403788.6 uses active ingredients in plants to replace fumigants such as cyclochloroethane and methyl bromide, and solves the problem of explosiveness, destructiveness to the environment and safety and harmlessness of the human body, but This method needs to put the plant fumigant and cultural relics into the fumigation box, and the amount of plant essential oil used for fumigation is also relatively large. In addition, high-purity nitrogen gas needs to be introduced, and a specific humidity needs to be selected for different mold disease types and cultural relic materials. Conditions and fumigation time, for example: for cultural relics made of paper, bone, and ivory, the humidity needs to be adjusted at 50-55%; for cultural relics made of textiles, wood, and leather products, the humidity needs to be adjusted at 50-60%; generally for black Molds such as Aspergillus and Aspergillus flavus need to be fumigated for 20-24 hours; therefore, this patented technology is not only cumbersome to operate, but also cannot realize one-time fumigation treatment of cultural relics of various materials and various bacterial molds in the same environment. The key is, The patented technology does not inform that the cultural relics are treated by the fumigation and disinfection method, and then placed in the cultural relics collection environment to regenerate mold

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