If you are using a heat tunnel to fix the ink, you must use a
heat press before printing to remove creases from the T-shirt and
to fix the pre-treatment solution. Always place a heat-resistant
release sheet, such as parchment (silicone) paper, between the
T-shirt and the heat press.
Note: Do not wet
the T-shirt or leave it in a humid location for a long time after
fixing the pre-treatment solution, or White ink may absorb into the
wet sections and cause poor print quality. If the T-shirt is
left for an extended period of time in a humid location, press it
for 5 to 10 seconds with parchment (silicone) paper just before
printing.
The fixing conditions vary depending on the amount of
pre-treatment solution used. The following guidelines are
approximate.
Note: If the
pre-treatment solution is not completely dry after the suggested
amount of time, extend the duration while carefully checking if the
pre-treatment solution is dry. Make sure the T-shirt is completely
dry before loading it for printing; otherwise, the print quality
may decline.
Fixing conditions for cotton
pre-treatment solution
|
Application area size
|
Temperature
|
Time
|
Pressure
|
| Letter/A4 and smaller |
338 °F (170 °C) |
45 seconds |
6.1 Psi (4.2 N/cm2) |
| Larger than letter/A4 |
45–90 seconds |
Fixing conditions for polyester
pre-treatment solution
| Application area size
|
Temperature
|
Time
|
Pressure
|
| Letter/A4 and smaller |
266 °F (130 °C) |
60 seconds |
4.4 Psi (3.0 N/cm2) |
| Larger than letter/A4 |
60 seconds |
Note: Optimum
conditions may vary depending on the type of heat press used; make
sure to test in advance to determine the correct conditions for
your heat press. If traces of the pre-treatment solution are
visible, try washing the T-shirt in water. However, the effects
depend on the T-shirt material.