November 5, 2009

Research Studies Techniques For Conservation And Restoration Of Color Photographs

The conservation and restoration of photographs is a topic that, in general, has not been very much researched. For example, in the case of colored or illuminated photographs, there does not currently exist an appropriate methodology, given that it there is not sufficient information about their material characteristics and structure. All this makes it difficult to research techniques of conservation and restoration.

Researcher at the University of the Basque Country (UPV/EHU), Ms Enara Artetxe Sánchez has made a study of colored or illuminated photographs for her PhD thesis. Her work is entitled, Argazki koloreztatuak zaharberritzeko paperean erabiltzen diren zenbait kontserbazio-zaharberritze tratamenduren egokitasunaren azterketa (Research on the suitability of certain of the on-paper conservation and restoration treatment processes employed in the restoration of color photographs).

To date, for the conservation and restoration of paper photographs the treatment employed in the paper has been employed without taking into account the effects that this treatment might cause on the photographed image. In this vein, the UPV/EHU research work has two main objectives: on the one hand, the study of color or illuminated photographs and, on the other, the search for and subsequent application of suitable techniques of conservation and restoration that do not damage the photographed image.

To this end, in the first place it is necessary to know the historic context of these photos. Likewise, as regards the conservation and restoration of any work of art, it is essential to know the material structure of the work before intervening and, in order to respect the suitability of any treatment or technique thereof. This is why Ms Artetxe studied the properties and material structure of the color photographs. Also observed was the deterioration suffered by these photos. Finally, the author focused on the suitability of certain treatment processes.

To carry out the research work, in the first place Ms Artetxe undertook a review of the literature. Simultaneously she located the color photographs. Then, based on these data, she carried out the historical and material study of the pictures. After gathering this information, she initiated the experimental part. In this vein and before beginning the study of treatment suitability, Ms Artetxe analyzed the effects caused by these treatment processes on the color photographs, both on silver "” color photographs can have a silver-photographed image "” as in pictorial layers. Moreover, on many occasions, especially when the photograph is highly colored or illuminated, identifying the photographed image is no easy task. In order to measure the intervention produced the researcher measured the changes of color and density caused by the treatment processes. According to Ms Artetxe, the results obtained will guarantee efficacious treatment processes and avoid the use of inappropriate ones.


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