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Topic: My image just won't burn.... help please!  (Read 2587 times)
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« on: December 02, 2008 02:55:44 PM »

So I am getting into screenprinting and already facing a few issues. I set my screen up, with the photo emulsion dried (yes, in a thin layer and yes, kept in complete darkness) I place the image on it, with glass over it, and set the bulb about 17 inches from the screen. The bulb is a 250w BBA No. 1 Photoflood bulb. My screen is speedball and the emulsion is Diazo. I let the image lay under the light for 20-30 minutes ( I have done it a few times already) and when I remove the transparency I see the image on the screen. I rinse off the photo emulsion and try to paint the image on paper, fabric, ANYTHING and NO PAINT GOES THROUGH! What am I doing wrong? Should I not add the glass (everything I read and watched says glass is better). Should I leave it on longer? Should it be closer? Please help!
« Reply #1 on: December 02, 2008 04:21:29 PM »

Are you spraying it out really well?  The screen where you spray out the emulsion should be white.  You need to use something high pressure like the shower or sink spayer or hose. 
« Reply #2 on: December 02, 2008 06:19:06 PM »

thanks! I am about to try to burn another image.... and I will make sure to spray it out really well. Here's to hoping!!! thanks for the reply Smiley
« Reply #3 on: December 02, 2008 07:54:39 PM »

SO, I tried the whole process again and still the SAME problem... I can't seem to get the image to burn. I left the light on it MUCH longer this time and then POWER WASHED the emulsion out. I got it as clear as I possibly could but still, the paint won't go through. I am about to try a different screen... any ideas what I need to do differently?
« Reply #4 on: December 03, 2008 10:42:28 PM »

I figured out my problem! I am posting it here for anyone else with similar issues. A) I think the emulsion was bad. It dried blue (even though it was in a completely dark room) The new emulsion dried green and then burned blue (which works!) B) the image wasn't dark enough. I printed it out on a transparency and it was black and when I put it up to the light I thought it was dark enough but it wasn't, I printed extra copies and layered them.... and .............. IT WORKS! yay!
« Reply #5 on: December 04, 2008 02:02:18 PM »

Good to know you figured it out.  I was at a loss.
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