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Blocking
The sticking together or adhesion of successive windings in a tape pack or film reel.
Blocking can result from:
- deterioration of the binder
- storage of tape reels at high temperatures, and/or
- excessive tape pack stresses.
- storage of gelatin emulsion film at high relative humidity and tight wind tension
- adhesion from film decomposition products
The National Film and Sound Archive of Australia acknowledges Australia’s Aboriginal and Torres Strait Islander peoples as the Traditional Custodians of the land on which we work and live and gives respect to their Elders both past and present.