EVALUATION OF COATED LASER PRINTED INFILLS FOR USE IN MANUAL RESTORATION OF LOSSES IN SILVER GELATIN PRINTS | ||||
| International Journal of Multidisciplinary Studies in Architecture and Cultural Heritage | ||||
| Volume 3, Issue 1, June 2019, Page 155-189 PDF (1.2 MB) | ||||
| Document Type: Original Article | ||||
| DOI: 10.21608/ijmsac.2019.224595 | ||||
 View on SCiNiTO | ||||
| Authors | ||||
| Toka ABD EL-HAY; Mustafa MOMEN; Hend YASSER; Amira IBRAHIM; Mohamed EMAD; Maha ALI | ||||
| Conservation Department, Faculty of Archaeology, Cairo University, Giza, Egypt | ||||
| Abstract | ||||
| The significance of photographic collections to our shared cultural heritage has become apparent; and therefore, the focus on their preservation has intensified. Photographs made during the last one hundred years belong to a class known as silver gelatin prints. A silver gelatin print is mainly composed of the primary support (i.e. paper), the baryta layer (i.e. fine particles of barium sulfate in gelatin layer) and the gelatin binder layer carrying the final image material (i.e. metallic silver particles). One major issue in photograph conservation field repairing losses in silver gelatin prints since the reflective index and texture of silver gelatin prints are difficult to simulate. In 2017, a combined manual and digital restoration technique was proposed by Yosri for the restoration of losses in silver gelatin prints. Results proved the stability of long-term stability of laser printing compared to inkjet printing. However, analytical assessment techniques showed changes in the appearance of the samples post artificial ageing. The main aim of this paper is to assess the efficiency of selected coating materials (i.e. methyl cellulose, Klucel G, gelatin and Funori) in improving the stability of laser printed infills to be used in damaged silver gelatin prints. Long-term stability of the coated printed samples will be evaluated after exposure to humid heat artificial ageing at a temperature of 80°C and 65% RH for 5 days using several techniques including visual inspection, microscopic inspection, pH value measurements, colorimetric measurements, and Fourier transform infrared spectroscopy (FT-IR). The second part of the study involves the treatment of selected vintage silver gelatin prints suffering from various damage forms, mainly losses and surface dirt. | ||||
| Keywords | ||||
| The significance of photographic collections to our shared cultural heritage has become apparent; and therefore, the focus on their preservation has intensified. Photographs made during the last one hundred years belong to a class known as silver gelatin prints. A silver gelatin print is mainly composed of the primary support (i.e. paper), the ba | ||||
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