Film Waxing Machine
It is well known that gelatine is used as a base in making the sensitized emulsion which is coated on motion picture film. This emulsion contains a small percentage of moisture and will, when subjected to friction and heat, become quite tacky, so that when film is passed through the projection machine, firmly held in focus at the apperture, it is subjected to both heat and friction.
- Print ISSN
- 0096-6460
- Published
- 1922-10
- Content type
- Original Research
- DOI
- 10.5594/J11658
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