Sponsored Links

 

YUDU PREPARE
1. PREPARE SCREEN:
Make sure the screen is clean and free of dust, lint, and oil.
All screen preparation MUST be done on the back.
TIP: The back of your screen is completely flush with the metal edge. The front is slight lower than the edge.
Spray the screen with water. It should be completely wet, but not dripping.
TIP: You can use a spray bottle to wet screen.
TIP: Run squeege up and down back and front of screen to remove excess water.
2. APPLY EMULSION TO SCREEN:

Remove the emulsion sheet from the black plastic bag in a dimly lit area.
Apply the dull/sticky side to the back of the wet screen.
TIP: There are two sides to the sheet, one shiny and one dull. If you can’t tell which is which, wet your fingers and touch the corner. The sticky side is the dull side.
TIP: Center the emulsion on the screen. Do not allow mesh to touch anything while applying emulsion.
Run squeegee over the shiny surface of the emulsion.
TIP: Inspect front of the screen for any bubbles or dry areas. Dry areas will have a spiderweb pattern. Use spray bottle with water to lightly mist any dry areas. Squeegee both sides of screen to eliminate excess water prior to drying. Dry edges of screen with a paper towel or cloth.
Place screen in drying rack of Yudu machine. Press fan button to begin a 20 minute drying cycle. The fan will stop and the machine will beep at the close of the cycle. In drier climates the screen may dry after as little as one cycle. In more humid climates the drying process may require several cycles. For humid climates you may blot moisture from the underside of the screen with a dry cloth towel and/or squeegee excess moisture from the screen to speed the drying process. Test for dryness before moving on to the next steps. After emulsion has dried, remove plastic film.
TIP: A hair-dryer can be used to accelerate the drying process.
TIP: Leaving door open while drying will speed up the process. Repeat the drying process if necessary.
3. SINGLE COLORED DESIGNS:
Adhere transparency, printed side up, to the glass on the Yudu machine using clear tape.
For single color designs, go to "Exposing Screen"
4. MULTICOLORED DESIGNS:
Press light table button.
Place first registration panel on registration posts.
Mount first design layer to registration panel with clear tape.
Tape second design layer to second registration panel, stacking the images, and ensuring it is registered with first layer. Repeat for each design layer.
When design layers are secured to registration panels, remove all but the first panel.
5. EXPOSING SCREEN:
After emulsion has completely dried, remove protective plastic sheet from unexposed, emulsified screen.
TIP: If plastic sheet does not remove easily, the emulsion is not dry.
Place screen front side up/emulsion side down on registration posts. Place platen on platen posts, foam side down, on top of screen.

Add extra weight to top of platen to ensure proper exposure (approximately 5 lbs). Using up and down buttons on timer, set exposure time (approximately 8 minutes).
Press exposure button.


WARNING: Turn off machine for 1 minute between exposures to allow unit to cool down.
When machine beeps and exposure light turns off, remove weight, platen, and screen from machine. Exposed emulsion will turn from green to blue after exposure. Design will remain green.
6. WASH AND DRY SCREEN:
Wet both sides of screen with COOL water and allow to sit for a minute. Spray screen with cool water to remove green emulsion from design area. It may be necessary to gently rub both sides of screen by hand or use a soft sponge to remove emulsion in detailed design areas.
Blot screen with lint-free towel. Place screen in drying rack.
Press fan button.


It will take one drying cycle or more for screen to dry. Touch screen with fingers to make sure it is dry. A hair dryer or fan may be used for additional drying. For multicolored designs, use new screen and repeat exposure, wash, and drying steps for each artwork layer.
Back to Yudu Blog PREVIOUS NEXT