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Author
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Topic: Rough edges, and ripped gloves
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Bruce McGee
Phenomenal Film Handler
Posts: 1776
From: Asheville, NC USA... Nowhere in Particular.
Registered: Aug 1999
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posted 05-26-2000 09:55 AM
As you know, I am inspecting a load of prints that I aquired recently. Also, I am inpecting by hand with a pair of rewinds. The one on the right is a power winder.
I have noticed that sometimes the edges of the film are very smooth, and sometimes they're not. Could this be caused by dull blades when the film is slit? Or is it something else?
I was working on a reel last night that constantly ripped holes in the fingers of my editing glove. The edges look smooth, but who knows... I try to hold the film as lightly as possible. I still feel everything going by my gloves, and sometimes I think I felt something, so I back up, stop, and check an area where I can find nothing wrong! Back in my days with 16mm, I would sometimes get a film that would rip my gloves to shreads, and others that were glassy smooth. How fast is the film going past the slitters, on average?
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John Walsh
Film God
Posts: 2490
From: Connecticut, USA, Earth, Milky Way
Registered: Oct 1999
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posted 05-26-2000 10:25 AM
I'm guessing of course, but if the roughness is at regular intervals, I'd suspect the film was wound onto a damaged reel. It could also be a bad roller on a make-up table or platter. The way film could be damaged during make-up, use and break-down is endless.I did see once where a roller on a make-up table was frozen, but the operator used it anyway. The friction heated the film edge up and made the edge look distorted, but not actually sharp. I'd doubt very much that the film was slit poorly when new, especially with several different reels. If the splicer was adjusted wrong, you could see that easily. I find that when a person does not remove the tape ends from the splicer, (we use a Nuemade) the build-up of tape pushes the blade into the film. That leaves a little square "bite" at a splice.
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Bruce McGee
Phenomenal Film Handler
Posts: 1776
From: Asheville, NC USA... Nowhere in Particular.
Registered: Aug 1999
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posted 05-26-2000 05:26 PM
I am using a Marble splicer, and I always have to trim the edges of the splice with small scissors that I keep for this purpose beside the splicer.Thanks to both of you for your input. When I notice this happening, I find that the entire reel will be doing it. The next reel often doesent do anything. I thought it was one manufacturer at first (a company that begins with F..) But then I noticed it happening to Eastman, Agfa-Geavert, and 3M, too. Believe me, I know how reel edge damage looks. I trim that, too. But, how fast does film get slit? Is it anything similar to X-ray film, because if it is, I have seen the local Agfa plant. It is amazing to watch the film making equipment in action.
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