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Scarica il salvaschermo sulla manipolazione dei materiali librari

Nuovamente funzionante ! è disponibile on line dal sito di patologia il salvaschermo sulla manipolazione dei materiali librari, può essere un sistema economico per l'educazione di personale e utenti, fatene buon uso ! scarica il salvaschermo

lunedì, giugno 22, 2015

Oil on Paper: A Collaborative Conservation Challenge | Circulating Now

OIL ON PAPER: A COLLABORATIVE CONSERVATION CHALLENGE

By Kristi Wright and Holly Herro
Sometimes conservators encounter problems resulting from well-intended but ultimately flawed repair techniques.  One example of this is the formerly widespread practice of applying oil to the covers of books.  Once considered best practice in libraries, the application of oil-based leather dressing to leather book bindings was a widely accepted treatment method.  The idea was to keep the leather supple and prevent deterioration.
As was the case with many well-intended treatment methods, these leather “dressings” did not pass the test of time. In NLM collections, the oil ultimately absorbed not only into the leather, but also sometimes migrated into the paper pages and other adjacent porous materials.  In some cases this may be a result of overzealous application, but in other cases the oil is simply seeping through the leather cover and moving deeper into the book.
read more: Oil on Paper: A Collaborative Conservation Challenge | Circulating Now:



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