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The influence of paper type and state of degradation on laser cleaning of artificially soiled paper

  • Lasers can be a supplemental tool for restorers to overcome some of the limitations of traditional dry cleaning techniques for works of art on paper. The laser working range has to be optimized allowing for safe removal of contamination and limitation of damage to the substrate. This paper addresses the influence of paper type and state of degradation on laser working range. Three types of new paper (pure cellulose, bleached pulp paper, rag paper) were degraded and characterized with respect their degree of polymerization. Laser-induced damage thresholds of new and degraded paper were determined using SEM and viscometry. Additionally, artificially soiled model samples were made using two kinds of soiling, namely pulverized charcoal and soot-blackened standard test dust. Cleaning thresholds of soiled paper samples were evaluated. A working range for all combinations of paper and soiling between 0.05 J/cm2 and 0.5 J/cm2 was found for the application of 8-ns laser pulses at 532 nmLasers can be a supplemental tool for restorers to overcome some of the limitations of traditional dry cleaning techniques for works of art on paper. The laser working range has to be optimized allowing for safe removal of contamination and limitation of damage to the substrate. This paper addresses the influence of paper type and state of degradation on laser working range. Three types of new paper (pure cellulose, bleached pulp paper, rag paper) were degraded and characterized with respect their degree of polymerization. Laser-induced damage thresholds of new and degraded paper were determined using SEM and viscometry. Additionally, artificially soiled model samples were made using two kinds of soiling, namely pulverized charcoal and soot-blackened standard test dust. Cleaning thresholds of soiled paper samples were evaluated. A working range for all combinations of paper and soiling between 0.05 J/cm2 and 0.5 J/cm2 was found for the application of 8-ns laser pulses at 532 nm wavelength.zeige mehrzeige weniger

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Metadaten
Autor*innen:Simone Pentzien, Andrea Conradi, Jörg KrügerORCiD
Dokumenttyp:Beitrag zu einem Tagungsband
Veröffentlichungsform:Verlagsliteratur
Sprache:Englisch
Titel des übergeordneten Werkes (Englisch):LACONA VIII - Lasers in the conservation of artworks (Proceedings)
Jahr der Erstveröffentlichung:2011
Verlag:Taylor & Francis
Verlagsort:London, UK
Erste Seite:59
Letzte Seite:65
Freie Schlagwörter:Ageing; Cleaning threshold; Damage threshold; Degree of polymerization; Nanosecond laser cleaning; Paper
Veranstaltung:LACONA VIII - Lasers in the Conservation of Artworks VIII
Veranstaltungsort:Sibiu, Romania
Beginndatum der Veranstaltung:21.09.2009
Enddatum der Veranstaltung:25.09.2009
ISBN:978-0-415-58073-1
Verfügbarkeit des Dokuments:Datei im Netzwerk der BAM verfügbar ("Closed Access")
Datum der Freischaltung:19.02.2016
Referierte Publikation:Nein
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