ブックタイトルConservation and Restoration of Western Paper

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Conservation and Restoration of Western Paper

successful when used on this type of paper,so further research into and study of itsrestoration are needed. As mentionedabove, without automatically treating anydeteriorated paper with deacidification, itwould be necessary to consider a desirablecountermeasure or even whether it is actuallyneeded to undertake any treatment for thedegradation, based on careful observation ofits state.In this context, in addition to deacidification,the concept of keeping an object in a box(or an envelope) made of neutralized paperis popular. This method itself is perfectlyfeasible, but once the object is put into sucha box (or envelope), it cannot be left likethat forever. Even though the box is at firstneutral, it will become more acidic withtime. One way to cope with this problemwould be to exchange the box or envelopefor a new one, but the issue of when itshould be exchanged has not been raised. Inthe future, these kinds of issues should alsobe studied and considered.11