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Grant number like: PR-263932-19

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Award Number Grant ProgramAward RecipientProject TitleAward PeriodApproved Award Total
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PR-263932-19Preservation and Access: Research and DevelopmentJohns Hopkins UniversityEncapsulation: Past, Present, and Future1/1/2019 - 12/31/2023$349,879.00Patricia McGuiggan   Johns Hopkins UniversityBaltimoreMD21218-2608USA2018Interdisciplinary Studies, OtherResearch and DevelopmentPreservation and Access34987903498790

A Tier II project to conduct experimental analyses on polyethylene-terephthalate (PET) encapsulation products used in preserving historical documents, along with the testing of newer encapsulation materials and the execution of a national survey about the number and condition of encapsulated documents in library and archival collections.

The preservation of documents by PET encapsulation is one of the most popular methods of paper conservation. In spite of this, there are concerns regarding whether the PET envelope traps acidic gases naturally produced by paper which might harm the document. We propose measuring the permeation of gases through archival PET as well as the properties of encapsulated papers. We will also survey the encapsulation methods used in libraries and archives in the US and test the condition of naturally aged PET in local libraries. We will also investigate newer, breathable films which might be used for archival storage of paper documents.