The particle transfer roller , often abbreviated to PTR , is a device for cleaning motion picture film . It consists of a cylindrical roller coated with urethane , over which the surface of the film passes.
6-483: PTR can refer to: Particle transfer roller , for cleaning motion picture film Peak-to-trough ratio , a parameter in pharmacokinetics Petir LRT station (LRT station abbreviation), Singapore PetroChina (NYSE: PTR) Photothermal Ratio , light/temperature ratio for a plant Physical transmission right in the electricity market Physikalisch-Technische Reichsanstalt , later Physikalisch-Technische Bundesanstalt,
12-534: A German research institute Pitrilysin , an enzyme Planar ternary ring in algebra Pool Test Reactor , Canada Proton-transfer-reaction mass spectrometry , used in chemical analysis PTR rifle , made by PTR Industries, Inc., US A type of DNS record in computer networking Pointer in computer programming (e.g. the PTR keyword in x86 assembly language) Palanivel Thiagarajan , an Indian politician Puerto Rico , ITU country code Public Test Realm,
18-567: A server in Overwatch where updates are tested by developers for player feedback Topics referred to by the same term [REDACTED] This disambiguation page lists articles associated with the title PTR . If an internal link led you here, you may wish to change the link to point directly to the intended article. Retrieved from " https://en.wikipedia.org/w/index.php?title=PTR&oldid=1159684242 " Category : Disambiguation pages Hidden categories: Short description
24-410: A solvent solution remains the standard, the PTR sold widely for use in projection booths and transfer houses. At least two PTRs are needed in the film path – one for the base side and one for the emulsion side – though four are frequently used. A set of PTRs is frequently placed in the film paths of projectors , telecine machines, scanners and printers in order to remove dust and contaminants from
30-453: Is different from Wikidata All article disambiguation pages All disambiguation pages Particle transfer roller The particle transfer roller was developed by Eastman Kodak and launched in 1989. It was intended to replace the organic solvents that were the main method of film cleaning before that point. Although their effectiveness is not usually considered sufficient for lab operations, where ultrasonic cleaning with
36-430: The surface of the film before projection, transfer or duplication. PTRs are also used in some dedicated film cleaning machines, or mounted between rewind heads and used for manual cleaning. The contaminants are lifted from the film and adhere to the roller as the film passes in contact with it. The rollers themselves are then cleaned, usually in soapy water, and dried before the next use. This film technology article
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