Exposing a Screen for Screen Printing, Screen Exposure Problems PART 1

There are a few factors that can lead to screen exposure problems. This video covers film opacity and why it's important to have an opaque enough film. Hope this helps!

Category:

Education

Tags:

• Screen
• printing
• silk
• screening
• t-shirts
• ink
• exposure
• unit
• emulsion
• plastisol
• water
• based

[bingers19]

What's your suggestion on emulsion drying times? I've read anywhere from 2-24 hours.

[Ryonet]

@bingers19 it depends on how dry your room is, the screen needs to be DRY, the dryer your room is, the dryer it will get faster. You can tell if it is dry by touching your lips to the screen and if you do not detect moister it is dry.

[bingers19]

Will not letting emulsion dry all the way create somewhat of the same problem? i let the emulsion dry for 2 hours or so, burned the screen which worked fine. but during wash out it took a long time and some of the corners of the lettering on the image started to lift. What is proper drying time for the diazo emulsion?

[Ryonet]

@bingers19 * This is a very good observation, if your emulsion is not completely cured onto the screen then what will happen is when the emulsion gets wet during washout it will start to separate from the screen and your image will blow out. Your emulsion sould be BONE DRY before exposure. Dehimidifyer!

[Ryonet]

The best way that I have found is to use compressed air.

[wazupsam]

Thanks for the video. I have a question and really need help here. I kept my screen in a dark clean box after coating emulsion. I use sun to expose it and here it has been raining since the day I coated emulsion. I didn't take the screen out yet. Will there be a problem if I let the screen be there for few days? And this is my very first experience in screen printing. Please help

[Ryonet]

@wazupsam Screens will typically last for up to 4 weeks if kept in the dark room. So you should be fine.

[kamalclifton]

Thanks for the video. My main problem thus far was the transparency of the image. Thanks again, I will try it out.

[503damont]

U can also use white florescent light to burn ur image

[dgordo2004]

How do you dry your screens in a quick manner after you spray your image out?

[wazupsam]

@Ryonet

Thank you for the quick reply. You the Dude!!!!!