Energy and Ecology
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Study results from S. Pentzien and colleagues in the area of applied physics published
January 14th, 2011
According to a study from Berlin, Germany, "Cleaning of cultural assets, especially fragile organic materials like paper, is a part of the conservation process. Laser radiation as a non-contact tool offers prospects for that purpose."
"For the studies presented here, paper model samples were prepared using three different paper types (pure cellulose, rag paper, and wood-pulp paper). Pure cellulose serves as reference material. Rag and wood-pulp paper represent essential characteristics of the basic materials of real-world artworks. The papers were mechanically soiled employing pulverized charcoal. Pure and artificially soiled paper samples were treated with laser pulses of...
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Source: Energy and Ecology (2011-01-14)