& nbsp; & nbsp; & nbsp; < strong > < a href = "http://www.hzshangyang.cn/product-1.html"> cultural relics exhibition cabinet in which the cultural relics displayed mildew and mildew stains are produced by a variety of microorganisms that grow in the air. It is impossible for them to keep stable even if they are affected by well-ventilated environment with low temperature and humidity.
A large number of insects invade Museum exhibits, especially wooden objects. Wood boreholes or furniture beetles can penetrate furniture, prints, frames and anthropological wood collections. They are extremely active and organize to cause structural damage. These insects can drill holes in the interior of the wood, make the exterior a thin shell, and then transfer the target to the next collection. The particles they left behind, called moth debris, are evidence of invasion. Formaldehyde, methyl bromide (methyl bromide) or ethylene oxide are usually used for steam fumigation. Green hydrocarbons and detergents with various pesticide formulations can also be used for local treatment. Borehole borer disease mainly exists in warm and humid environment without ventilation and wood with low resin content.
Microorganisms usually grow vigorously in tropical areas with relative humidity of 70%, temperature of more than 15 degrees Celsius, in non-circulating or closed environments, and on surfaces rich in cellulose or protein. They produce common Tan spots on paper or fabrics, but they can also form various colours and forms of biological colonies on the surface of many materials.
When there is slight discoloration without affecting the beauty, it may be enough to simply reduce the relative humidity and temperature and place the objects in a well-ventilated place, so as to stabilize the condition of the exhibits. However, long-term storage in tropical environments may aggravate pollution, and disinfection and sterilization must be carried out after mechanical removal of spores and their by-products.
Traditional methods of trapping and killing microbes on printed matter and paintings with thymol vapor are still in use. Other fumigants, such as formaldehyde vapor and ethylene oxide, can also be used. Anthropological collections, ornaments, industrial or agricultural products may also be fumigated if they are persistently harmed by fungi and fungi.
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