Cellulose Acetate Decay

Athletic Archive Vinegar Syndrome Inspection and Quarantine Workflow for Historic Game Film

Athletic Archive Vinegar Syndrome Inspection and Quarantine Workflow for Historic Game Film

The championship game film sitting in your equipment room or storage closet may be deteriorating right now — and the warning sign is a smell, not a picture quality problem. Cellulose acetate film, the base material used for almost all educational and sports motion picture film produced from the 1950s through the mid-1990s, breaks down through a self-accelerating chemical process called vinegar syndrome. Once the process begins, it releases acetic acid, produces the characteristic sharp vinegar odor, and generates shrinkage, brittleness, and channel warping that make the film increasingly difficult — and eventually impossible — to digitize. An athletic archive vinegar syndrome inspection workflow is a documented, repeatable process for identifying affected reels, classifying deterioration severity, quarantining compromised film to prevent cross-contamination, recording condition accurately, and determining which reels need emergency digitization before the footage is permanently lost.

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