Cleaning and liquid contact with solids – Processes – Including application of electrical radiant or wave energy...
Patent
1998-09-10
1999-09-14
Warden, Jill
Cleaning and liquid contact with solids
Processes
Including application of electrical radiant or wave energy...
21912169, 21912184, B08B 700, B23K 2600
Patent
active
059517786
ABSTRACT:
The present invention is a method of cleaning artwork by removing contaminates from a painted or patina surface of the artwork. A pulsed laser is used having a wavelength of between 2.3 and 3.3 .mu.m, such as an Er:YAG having a wavelength of 2.94 .mu.m, to stimulate the presence of an OH radical contained in the contaminant film layer to be removed or introduced to the paint surface contaminated film using an OH containing agent applied with a brush, cotton swab or spray. The surface to be removed is covered by a glass cover slip and has the laser energy impinged thereon. The laser energy interacts with the OH radical present in the contaminant or introduced into the surface by the operator. The reaction of the laser energy with the OH radical deposits the contaminated film material onto the glass slide cover. Contaminants that remain on the paint surface can then be removed by scalpel or cotton swab using a wetting agent.
REFERENCES:
patent: 3706942 (1972-12-01), Ultee
patent: 4588885 (1986-05-01), Lovoi et al.
patent: 4756765 (1988-07-01), Woodroffe
patent: 5151134 (1992-09-01), Boquillon et al.
patent: 5268548 (1993-12-01), Kumar
patent: 5368900 (1994-11-01), Jelley et al.
patent: 5560781 (1996-10-01), Banks et al.
patent: 5637245 (1997-06-01), Shelton et al.
patent: 5656096 (1997-08-01), Van Alstyne
patent: 5729646 (1998-03-01), Miyagi et al.
Applied Optics, vol. 34, #21, Jul. 20, 1995, by Katherine Liu and Elsa Garmire, pp. 4409-4415.
Optics & Photonics News of May, 1995, entitled: "Lasers for Art's Sake|" by Costas Fotakis pp. 30-35.
NASA Tech Briefs of Apr., 1996 entitled: "Atomic Oxygen Removes Varnish and Lacquer from Old Paintings".
Optics & Laser Technology, vol. 27, #1, 1995 by M.I. Cooper, D.C. pp. 69-73 Emmony, & J. Larson entitled: Characterization of Laser Cleaning of Limestone.
Electronic Engineering Times of Monday, Aug. 14, 1995, Issue 861.
Palladio, Quanta System, "Pulsed Nd:YAG Laser for Fine Art Conservation".
deCruz Adele
Wolbarsht Myron L.
Chaudhry Saeed
deCruz Adele
Hobby III William M.
Warden Jill
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