User login

Trying to get exposure time right

Posted on Mon, 5 Jul 2004 at 19:39



We are using a 500 watt halogen light, about 20 inches above. We are using Diazo emulsion on our screens. We are printing on velum using a canon i9100 inkjet printer.

We have tried 10 and 20 minute exposure times, and at 20 are still seeing some problems with the exposed emulsion washing out in some spots.

Is there any formula to this, or should we just continue the trial and error?

Location of Opportunity or Item

Comments

Anonymous says: Hi Me i using 1000 watt halogen light at 20 inches above, i using diozo emulsion to, but my time to burn is 17 min. Before my light is onder my screen and i see i have a lot of probleme because the window ...

Hi

Me i using 1000 watt halogen light at 20 inches above, i using diozo emulsion to, but my time to burn is 17 min.

Before my light is onder my screen and i see i have a lot of probleme because the window comme to hot, so i put my light up to the screen and all my probleme gun.

Your film you have it is verry black ?? if you see the light pass on the logo at your film
that no good, that make lot of plobleme to.

I using a printer Epson 3000 whit fast rip, you can look to find this printer at the U.S.
sreen printing, or look on the site of Screenweb.

I hope this help you.

Mitchel

posted on: Tue, 07/13/2004 - 2:50pm
Anonymous says: If you can, look up a company called "Chromaline". They have Exposure calculators you can use to perfect your exposure times. It's just a film you place on the screen and expose. It'll have instructions ...

If you can, look up a company called "Chromaline". They have Exposure calculators you can use to perfect your exposure times. It's just a film you place on the screen and expose. It'll have instructions as to how to establish the correct exposure time for you unit.

posted on: Fri, 10/22/2004 - 2:20pm
Anonymous says: If you can, look up a company called "Chromaline". They have Exposure calculators you can use to perfect your exposure times. It's just a film you place on the screen and expose. It'll have instructions ...

If you can, look up a company called "Chromaline". They have Exposure calculators you can use to perfect your exposure times. It's just a film you place on the screen and expose. It'll have instructions as to how to establish the correct exposure time for you unit.

posted on: Fri, 10/22/2004 - 2:21pm

Did you enjoy this article? Click here to subscribe to the magazine.