2020 Volume 83 Issue 1 Pages 50-55
This paper described a diagnosis system that evaluated deterioration states of photographic films of which the base material was composed of triacetyl cellulose (TAC). The concept of this diagnosis system is based on that of a thorough medical checkup. This diagnosis system provides knowledge on not only the amount of acetic acid gas generated from TAC-based films, but also the structure and physical properties of TAC-based films. From the results obtained from multiple analytical apparatuses, quantitative and comprehensive deterioration diagnosis of TAC-based films was achieved. In addition, by applying this diagnostic system, even for TAC-based films in which no indications of deterioration were observed by visual and olfactory inspection, the deterioration state of TAC base could be distinguished.
