These pics are of an older two colour job for a band called 'So So Modern', designed by Autistk. The poster was printed as an edition of 50 A1's. Hopefully it helps you all understand the screenpritning process a little better.
the seperations. These are the designs, turned into their respective
colours/layers, as each colour is printed one at a time. Black on the
right, red on the left.
seps are then stuck to the screen. The key is UV sensitive emulsion
(the orange stuff), which is coated onto the screen earlier and needs to
be kept out of the light until exposure. I keep my large screens in the
attic: smaller screens in a light-safe box I made.
screen then goes into my UV lightbox for exposure...I use 6 UV bulbs at
around 20mins, which burns the design from the seps into the emulsion.
The foam on the right pushes the screen flush to the glass when the lid
is closed, making a crisp image. You can do this with a halogen lamp, or even the sun.
exposure, the screens are washed down. The black areas in the design
block the light, but the clear areas are burned into the screen. The
result is that the blocked areas (the yellowish sections) washes away,
making the stencil for printing.
so my screen is dry and I'm taping it up so I can print. The orange
areas are blocked, so no ink can pass through. It's the other
(yellowish) areas where the inks passes through in the printing process.
I use clear packing tape on the gutters, which helps cleaning up the excess ink and stops leakage at the sides.
is locked into my vacuum table using hinges, and the stock is ready to
register. I use business cards as a 3 point rego system....I also use
that kick arm which holds up the screen and helps for feeding in stock.
The screen is lowered, and I then add the ink. I use waterbased inks so I don't have to deal with chemicals.
the first layer, red. Generally lighter colours go first. This is the
repetitive part. So for a 50 poster job I'd do this action 50 times,
plus another 50 for the second colour.
ta da! I work from right to left, and usually get up a bit of pace,
which is nice. Loud punk (Minor Threat usually) or national radio is a
necessity for this process.
Here's the first colour done.
The screens then get cleaned in my washout area out back. Tape, ink, blood, etc.
for the second colour. I line up the second colour with the
transparency, then do the same with the screen to make sure registration
is ok. This is probably the hardest thing because things can move
during the whole process!
Tape it up, line it up, and get ready to brake my back again. Music on.