Making A Positive

1
Making A Positive

• Create your design using a computer. Be sure the
  design is in black and white and that there are
  no gray or colored areas of your design.
• The best software to use for this is Adobes
  Photoshop 5.5
• You can use text or graphics for use in this
  process of Photographic Emulsion.
• Once you have your design and you think it is
  ready to make your positive, have your teacher
  check it before you print it out.
• Once it has been approved, print it out to the
  Laserjet 4050 laser printer onto a transparency.
  (Note get this transparency from your teacher)
  Be sure to place the transparency in tray 3 and
  ensure no other students are printing before you
  try to print to the transparency.

Continued...
2
Making A Positive - Continued

• If the image doesnt take up too much area on a
  page, place two images onto the page and then
  print as you will be taping two transparencies
  together to obtain the correct density for use on
  the Exposure Unit.
• If the image does take up too much of the print
  area, then you will have to print two copies of
  the image.
• Once printed, tape the two images on top of one
  another and be sure they are exactly lined up.
  Use the light table to do this and use scotch
  tape.
• Once the transparencies are taped together, you
  are ready to line them up on your coated screen
  for exposure on the exposure unit.

3
Coating Your Screen

• Degrease screen with cromobrade and dry it.
• Choose size of scoopcoaster for image.
• Attach ends onto scoopcoaster.
• Pour Chromatech into scoopcoaster.
• Coat inside of screen first, then outside, then
  inside. (stay 2-3 from the top of silk)
• Replace unused Chromatech and wash all tools with
  water.
• Place screen to dry in front of fan for 15 min in
  complete darkness.
• Place screen into garbage bag and bring bag
  downstairs for exposing.

4
Exposing Your Screen

• Attach the positive image (transparency) to the
  screen.
• Place your screen into the 5-way exposure unit
  (silk down) and center.
• Place cord inside frame, close cover.
• Turn on power, vacuum, allow to suck up to 10 lb.
  pressure.
• Press expose button (start) and allow exposure to
  take place for 155s.
• Once lights go off, release pressure with cork
  valve and turn on blower.
• Lift lid, remove positive.
• Wet screen on both sides (no pressure) and let
  sit for 2-3 min.
• Wash out screen without pressure until image
  appears and is clean and clear.
• Dry screen with blow dryer and print as normal.