ブックタイトルConservation and Restoration of Western Paper
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Conservation and Restoration of Western Paper
Photo 3 From Prison entrancePhoto 5 Wings (used for reading rooms and other functions)Photo 4 Former prison structures under renovationPhoto 6 Reading room gallery floorbrown, and the parts where letters wouldhave been written peel off.Possible countermeasures for these typesof degradation may be different for eachcase. In some cases, degradation is causedby complex factors and is currently treatedindividually based on the observation of itsactual condition.In the past, the main cause of degradationtended to be considered oxidationdeterioration and when“paper gets brown”or“paper gets dried out,”deoxidationwas immediately recommended as acountermeasure in many cases. However,in recent years, it has been questioned ifeverything should be deoxidized, whichwould show that the discussion of thisissue has been gaining a more pluralisticPhoto 7 Inside the repositoryperspective. Of course, it does not mean thatall deoxidation is unconditionally wrong.Rather it means that not all problems7