Ink from Film Sticking to Emulsion

[Underbase37]

For us here. This problem = rushing/humidity. 

Murphy37

[Nation03]

I was getting this a lot. My solution - when you go to print your films, invert the image. Now when you go to expose the print side of the film isn't touching the emulsion. I wasn't sure if that would mess with the image quality, but so far so good.

[cbjamel]

Not going to hurt the image just choke it for better term with light undercutting. Less humidity little high dry temp of 90-100 will help. Try to around 20-25% humidity. Is what I have found.
Shane

[sben763]

Dehumidifer  and sticking the films in the dry box when I was using CCI HPV. OrChroma blue  I switched to Saati PHU and have never had it happen. 

[mk162]

I wouldn't recommend inverting.  for spot colors it will probably be fine unless they touch a lot and on a base it will be worse.  Halftones with this method will give you much more gain than you would normally get.

I would fix the problem with too much humidity and do films the correct way.

FYI this is an old school trick for trapping...it dates back a long time.

[Itsa Little CrOoked]

FYI this is an old school trick for trapping...it dates back a long time.

You're Kidding!!  I didn't know that.

Sure makes sense.

It's humidity though. I've satisfied myself of that long ago.  A rainy couple of days back to back can still do it for me. 

I've worn out 3 power supplies for my teensy weensy DEhumidifier that sits on the floor in my darkroom. When it quits, I get another one right away. It runs 24/7/365. No more sticking, unless lots of rain and I bring screens out of dry storage too long before shooting them.

Stan

[Frog]

As far as the trick of "inverting" to avoid the emullsion side of the film, you mean mirroring.
As you can easily see in your graphics program, "inverting" will reverse what is black and what is clear, while mirroring will flip the image, making it right-reading on the back side of the film.

[Parker 1]

Humidity problem for us as well.  Powder in a Crown Royal bag.  Dust every screen prior to taping the films, problem solved.   

[ol man]

dehumidifier in the screen closet

[ScreenFoo]

If you're using silly old-school tricks to keep it from sticking, just put another piece of poly in between the positive and emulsion.   
(Also works to trap the white on designs from sep impaired artists)

[Shanarchy]

If you're using silly old-school tricks to keep it from sticking, just put another piece of poly in between the positive and emulsion.   
(Also works to trap the white on designs from sep impaired artists)

I don't like the idea of flipping the film, but if you are going to do something like that, this sounds like a much better idea. I bet you could find a very think micron sheet to use which would help with the choking issue. And it wouldn't alter your art/film output process.

[screenxpress]

Baby Powder

[JBLUE]

Fix your humidity problem and dont waste time on gimmicky work arounds that are band aids for the underlying problem. 55% is too much. Our screen room sits around 25% if not lower. The moisture issue can also be in the film if your humidity is high where your films are stored. They are made to attract moisture.

[Racer Tees]

I put a dehumidifier up in my screen room.  Thinking about moving my film storage in there as well.

[Gilligan]

Fix your humidity problem and dont waste time on gimmicky work arounds that are band aids for the underlying problem. 55% is too much. Our screen room sits around 25% if not lower. The moisture issue can also be in the film if your humidity is high where your films are stored. They are made to attract moisture.

We hit 25% and still have sticking issues with chromablue.