Molecular sieves for film preservation

摘要

This paper reviews the current status of the zeolite molecular sieve technology for film preservation since its introduction in 1993. We have successfully developed products and procedures for motion-pricture, microfilm, and aerial film segments and disseminated the information to the preservation community (1-5). The molecular sieves scavenged the acides, moisture, oxidants, and solvents generated by the films under confined storage, thus suppressing the acid-catalyzed hydrolytic degradation of the cellulose triacetate (CTA) support and the resulting loss in dye stability of color motion-picture films.