Treatment and conservation of broken glass photographic negatives

Document Type : Original Article

Authors

1 Prof. of Conservation of Organic Materials - Faculty of Archaeology - Fayoum University

2 Prof. of Conservation of Inorganic Materials - Faculty of Archaeology - Fayoum University

3 Director of the Institute of Archaeological Crafts PhD Researcher - Faculty of Archaeology, Fayoum University

Abstract

Archaeology has received the attention of many scientists; Civilization is the fabric of human thought. Photography is the new element of this cultural fabric. Photographs consist of negative images and positive images; it is one of the most important archival materials that abound in Egypt and the world, in which there are thousands or hundreds of thousands of negatives about Egyptian antiquities from the 19th and 20th centuries, which became a record of important records and documents.
The work consists of manufacturing and preparing trial samples of photographic negatives on a glass support, accelerated industrial obsolescence operations were also performed on laboratory-manufactured samples to simulate historical negatives; a set of suggested adhesives was selected for gluing broken negatives and applied to samples of previously manufactured negatives. Two slides of experimental photographic glass negatives were collected; It has been subjected to the conditions of accelerated obsolescence to apply the chosen adhesives, Four materials were selected (Araldite 1092 – Cyanoacrylate - Epoxy Epobond Transparent – Clear Silicon Transparent C 901). The transparent epoxy epobond was proven by comparison in terms of technical specifications and color change as well as resistance to mono-tensioning. The process was applied to a historic B0901 negative from the collection of the Bella Photography Studio.

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