To prevent
colored T-shirt fibers on the roller from sticking to other
T-shirts, use a different roller for each color.
Fill the
tray with diluted pre-treatment solution and dip the roller in
it.
Spread
out the T-shirt on a flat surface.
Squeeze
the pre-treatment solution out of the roller by pressing it against
the edge of the tray.
Apply
the solution evenly in both directions as shown to an area larger
than the target print area. It's important to finish in the
shoulder-to-shoulder direction; this aligns the fabric fibers to
the direction of the print head movement.
Fix the
pre-treatment solution with a heat press, if necessary.
Note: The T-shirt
fibers must be pressed flat to produce even whiteness. Even if you
use a heat tunnel to fix the ink, use a heat press to fix the
pre-treatment solution before printing.