UNISUB TIPS AND GUIDELINES
Pre-Heating Transfers
Varying storage conditions may have an effect
on the moisture content of transfer paper. To eliminate moisture
from transfers, place the printed transfer 2"-3" below the platen
for 20-40 seconds.
Prepare the Substrate
Remember to peel the transparent protective film
off of the surface of the substrate (if applicable) and check
to see that you are working with a clean, lint-free surface.
Temperature and Dwell Times
A temperature of 200 degrees centigrade is recommended
for all Unisub products. Use moderate to heavy pressure - it
should require some effort to close your heat press. Time and
temperature may vary depending on your heat press and the thickness
of the blank material. Dwell times can be increased or reduced
in 5-15 second incremements until you find the duration which
results in the clearest image. All times shown are for "face-up
sublimation" - transfer on top of the substrate. Please refer
to the documentation from your ink supplier for more information
on temperature and dwell times.
Storing Finished Products
Special care must be taken when storing or packaging
finished sublimated products. If sublimated pieces are placed
in direct contact with other sublimatable materials or with
any type of synthetic material, the inks will migrate from the
sublimated piece to the synthetic material over time. Do not
stack finished pieces face-to-face, either when hot or cool.
Do not wrap finished pieces in shrink wrap or place them in
plastic bags for shipping. We recommend that you use a paper
sheet between stacked items, or wrap piecs in paper for shipping.
Troubleshooting
A blowout refers to an image whose colors have
been "blown out" of its borders and appear smudged. The primary
causes of blowouts are uneven heating, overheating and excessive
pressure. Heat press accessories, such as a rubber pad or a
Teflon sheet covering a transfer held in place with heat-resistant
tape will prevent a blowout of your image by lessening the variance
in temperature across the surface. If everything is set correctly
and you still have trouble, your transfer many be shifting.
Sometimes a "double image" results when the transfer
moves across the sublimatable surface while it is still hot,
usually when the press is lifted or while removing the transfer
from the sublimation surface. To prevent this, it is recommended
to always use a transfer sheet that is larger than the surface
you are sublimating onto. Ideally, the paper should have enough
overhang to secure it to the backside of your sublimatable blank
with heat resistant tape.
Do not tape to the foiled edge of a plaque or
paperweight as it may pull the foil off when removed.
If possible, allow the piece to cool slightly
before removing the transfer and tape.