Experimental investigations of stained paper documents cleaned by the Nd:YAG laser pulses

Surface cleaning of intaglio prints with microblasting powdered cellulose and erasing: Treatment effects on inks and support texture

“…In latest years, as an alternative to traditional methods, laser cleaning has been tested on paper documents [14][15][16][17][18][19][20] although chemical changes or mechanical alteration that might be caused is still being evaluated. Furthermore, laser equipment is not always available to the restorer and erasing is the most common procedure in an actual dry cleaning treatment.…”

Control of Fungal Paper Deterioration by Antifungal Drugs, Essential Oils, Gamma and Laser Irradiation

“…This method avoids the toxic cleaning fluids and has potential to accelerate conservation work offering high quality results and save costs. Ochocinska et al (2003) reported that the penetration depth as well as the dose of laser energy delivered can be controlled, and therefore the risk of possible damage to the treated old documents and works of arts can be markedly reduced during restoration and cleaning from microbial spores and dirts. The less destructive wavelength (532 nm) and energy fluencies (< 1 J/cm 2 ) are recommended by (Kolar et al, 2000b).…”

Libs Tool to Diagnose the Egyptian Deteriorated Wall Paintings During Laser Cleaning Process, an Experimental Study

“…Laser cleaning, with the aid of on-line. LIBS monitoring, has been employed to remove extraneous coatings of various kinds, including dark encrustations from marble, terracotta, stone and glass artworks due to exposure to air pollutants [9] [18], corroded layers from metal objects [19] [20], dirt (dust and pen and pencil traces) from historical paper documents [21] [22], pencil and pen marks on alabaster and marble statues in a standoff configuration [23],and patinas on surfaces of historical buildings [24]. The most appealing features of LIBS applications in the field of cultural heritage analysis are mainly the following: its micro-destructiveness, with ablated sample portions on the order of fractions of micrograms and induced damage virtually invisible to the naked eye; its potential for fast multi-elemental analysis and capability of simultaneous detection of major and trace elements; its equipment, easily compactable into portable instruments for in situ analyses of piece of arts that cannot be removed from museums or excavation sites, or of historical buildings and wall paintings.…”