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Full-Text Articles in Art and Design

Estimation Of Gelatin Content In Historical Papers Using Nir Spectroscopy, M Ormsby, T Barrett, J. B. Lang, J. Mazurek, M. Schilling Nov 2011

Estimation Of Gelatin Content In Historical Papers Using Nir Spectroscopy, M Ormsby, T Barrett, J. B. Lang, J. Mazurek, M. Schilling

University of Iowa Center for the Book Publications

Gelatin sizing was a key ingredient during the handpapermaking era. The gelatin concentration in historical papers has never been well documented, however, because measuring the gelatin content required destructive sampling. In this project we developed a non-destructive method using near infrared (NIR) spectroscopy. Gelatin concentrations of 40 historical papers from the 15th-18th centuries were determined from amino acid (AA) concentrations by using gas chromatography/mass spectroscopy. These values were combined with NIR spectra from the same papers to generate a model for predicting concentrations of unknowns. If a NIR measurement predicted a gelatin concentration in the range ...


Paper Spine For Thin Volumes, Donia J. Conn, Department Of Preservation And Conservation Jan 2011

Paper Spine For Thin Volumes, Donia J. Conn, Department Of Preservation And Conservation

Libraries' and Librarians' Publications

Similar in concept to the Molded Paper Spine, this treatment is intended for materials in the collection printed before 1800 in which the text block is less than 1cm thick. The technique comes from Frank Mowery at the Folger Shakespeare Library.


Conservation Re-Casing (Binding), Donia Conn, Peter D. Verheyen, Department Of Preservation And Conservation Jan 2011

Conservation Re-Casing (Binding), Donia Conn, Peter D. Verheyen, Department Of Preservation And Conservation

Libraries' and Librarians' Publications

Conservation recasing is a way to preserve our 19th and 20th century materials in which the bindings have failed and, in many cases, been lost over time. It is not intended to be used on valuable bindings or volumes printed before 1800. The structure used is based on the German (Bradel) case binding.


"Molded" Paper Spine Binding, Donia J. Conn, Department Of Preservation And Conservation Jan 2011

"Molded" Paper Spine Binding, Donia J. Conn, Department Of Preservation And Conservation

Libraries' and Librarians' Publications

The molded paper spine is a rebacking/recasing structure intended for leather-bound books for which the covers have deteriorated too much to be salvageable. The new molded paper spine looks very much like leather and is very strong.