Aging Acetate Microfilm

Across my desk comes a reminder of a growing problem. Aging acetate microfilm.
Prior to the early 1980’s, most microfilm used for preserving newspapers, documents and even movie film, was made with cellulose triacetate. “Acetate” as it is commonly known became the standard from the 1930’s to the late 1970’s when production ended. No one really [...]