|
This topic comprises 2 pages: 1 2
|
Author
|
Topic: Australian Film-Techers...You losing SRD tracks?
|
|
|
|
|
|
|
|
|
|
John Pytlak
Film God
Posts: 9987
From: Rochester, NY 14650-1922
Registered: Jan 2000
|
posted 07-19-2004 01:40 PM
Whenever emulsion-side projector abrasion occurs, the first thing that comes to mind is moisture content of the film. Damp gelatin emulsion is softer, so it will abrade more easily, especially in the projector gate. And when it abrades onto the hot projector gate, it hardens into a very abrasive hard deposit.
Although process drying conditions can be a factor, film that is shipped or stored in very damp, humid, or tropical conditions may pick up excess moisture, especially along the edges.
Post-process lubrication or proprietary film treatments have consistently been shown to reduce projector abrasion, with Kodak first developing edgewax procedures in the 1920's, with the paper "Film Waxing Machine" by J.G.Jones in the Transactions of the SMPE, Number 15, in 1922. See the technical paper "Lubrication of 35-mm Release Prints for Extended Projection Print Life" by Edward Mino and Rodney Perry, published in the October 1983 SMPTE Journal, or "Lubrication of Motion-Picture Film" by Dr. Fred Kolb and Ed Weigel in the April 1965 SMPTE Journal, for a discussion of the history of print film lubrication.
| IP: Logged
|
|
|
|
|
|
|
|
All times are Central (GMT -6:00)
|
This topic comprises 2 pages: 1 2
|
Powered by Infopop Corporation
UBB.classicTM
6.3.1.2
The Film-Tech Forums are designed for various members related to the cinema industry to express their opinions, viewpoints and testimonials on various products, services and events based upon speculation, personal knowledge and factual information through use, therefore all views represented here allow no liability upon the publishers of this web site and the owners of said views assume no liability for any ill will resulting from these postings. The posts made here are for educational as well as entertainment purposes and as such anyone viewing this portion of the website must accept these views as statements of the author of that opinion
and agrees to release the authors from any and all liability.
|