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Research on dyeing and weaving techniques and materials

 The Department of Intangible Cultural Heritage and the Center for Conservation Science has been continuing basic research on techniques and materials associated with textiles from fiscal year 2014. The project aims to clarify the techniques and materials of textiles by collecting and organizing basic information from documentary records as well as to promote organization of information on scientific research of textiles.

Research on salted cocoons at Kinuori Production Institute

Research on humidity-controlled warm air treatment for wooden historical buildings

 An anobiid species, Priobium cylindricum, was found by chance in wood members in the restoration work of the Sambutsu-do of Rinnohji temple. Insect damage was so severe that an unprecedented large scale fumigation of the temple was performed. Gas fumigation is an effective insecticidal treatment for historical wooden buildings, but on the other hand development of new insecticidal treatment is required because large scale gas fumigation has many safety restrictions for humans and the environment. Research about the development of “humidity-controlled warm air treatment,” one of the new insecticidal treatments for historical wooden buildings, has been conducted in cooperation with a university and other research institutes. This treatment is a method to disinfest insects by heat (humidity-controlled warm air) without damaging the wood. To evaluate the insecticidal efficiency of the humidity-controlled warm air treatment, a survey is conducted on the population of the insect in the historical wooden building before treatment by using a newly developed insect trap (flight interception trap, FIT) in addition to conventional adhesive tape trap. At the same time, entomological research on elucidation of the ecology and the life history of this rare anobiid in the natural environment is also conducted.

Wood member damaged by anobiid

Insect monitoring with a flight interception trap

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