Ricoh Ri 1000 - [Pre- Treatment Application Procedure]

RICOH Ri 1000
User Manual
68
[Pre- treatment Application Procedure]
• A well-ventilated room. Good ventilation is essential for worker comfort and health. Application
of Pre- treatment Liquid outdoors is not recommended on windy days as it can cause uneven
application. It is recommended that a room away from the printer be dedicated to the
application of pre-treatment so that the spray will not affect your printer.
• Our recommended process for applying the Pre-treatment Liquid is to use a High-Volume Low
Pressure (HVLP) spray gun. These spray guns are commonly used for applying paints and are
available from paint supply stores or home improvement stores. The Wagner Control Spray Gun,
available for US customers ONLY and Campbell Hausfeld Paint Sprayer, found in local hardware
stores are both good choices.
• Fill the sprayer reservoir with the mixture.
• Lay the substrate on a flat spray table. Make the substrate even and flat.
• Apply the pre-treatment mix with the sprayer adequately and an even amount, achieving an even
wet sheen. Remember you only need to apply the pre-treatment to the areas that will be printed
on.
• Squeegee the pretreatment in one direction to help spread the pre-treatment evenly after
spraying. This also flattens any fabric fibers that may have risen due to the application of the
wet pre-treatment.
• Dry the substrate. You can achieve an excellent result by letting the substrates air dry or you
can use a heat press in the hover position (This means the heat press is not closed but has a
½-inch to 1-inch gap to allow the steam to escape) or a heat tunnel. Do not dry your
substrates in a tumble dryer. These dryers are full of lint and since the pre-treatment is wet
and somewhat sticky you will end up with lint stuck to the pre-treatment.
• Once the substrate is dry to the touch, its able to be printed on. If you plan on storing the
substrates for later use, be sure that they are completely dry beforehand to prevent mildew.
• When first attempting the pre-treatment process test with a few shirts to determine how much to
spray. Too much pre-treatment can leave dark areas on the substrates. Too little pre-treatment can