Effects of Acetic Acid Syndrome on Film Images

doi:10.7517/issn.1674-0475.181003

Abstract

Abstract: Acetic acid syndrome is a special disease phenomenon of cellulose acetate film,and is the main factor threatening the safety of cellulose acetate film. Acetic acid syndrome caused the change of size, brittleness of the film base, severe damage of the image. In this paper, the Keyence VK-X250K shape measurement laser microscope was used to study the surface roughness of the base of syndrome acetate film, and the X-Rite Model VS450 spectrophotometer was applied to study the reflectivity of the film surface to the visible light. The experimental results show that the surface roughness and reflection to visible light increase when the acetic acid syndrome occurs. Thus, it can be explained that when the acetic acid syndrome occurs, the rough interface is formed due to precipitation of the plasticizer, which leads to the enhancement of the reflection to visible light. The attenuation of transmission light is the main factor leading to the damage of the recording image.

Key words: film, acetic acid syndrome, surface roughness, film images, clear rate

QI Yunpeng, ZHAO Xili, ZHOU Yajun, LI Yuhu, XING Huiping, WANG Yong, WU Nan. Effects of Acetic Acid Syndrome on Film Images[J]. Imaging Science and Photochemistry, 2019, 37(1): 57-64.

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