čas: 23.4.2021 02:02:12
Obnovit | RAW
Department of Chemical Technology of Monument Conservation
List of available PhD theses
Cellulose acetate base motion picture films
Cinematographic films based on a cellulose triacetate base form a considerable part of collections in film archives. Films made in the period from the 1950s to the 1980s include a soundtrack in the form of a magnetic strip. The cellulose triacetate base is prone to degradation manifesting shrinkage, twist, and embrittlement. These dimensional changes can lead to errors in playing a magnetic soundtrack and difficult digitization. This work will focus on the study of cellulose triacetate film degradation processes and their influence on the magnetic soundtrack. One of the goals will be to develop methods for temporarily suppressing the symptoms of the degradation of the base and to determine the effect on the soundtrack. Furthermore, the possible catalytic effect of the magnetic soundtrack on the degradation of the base will be investigated.