International's family of flock tapes are engineered
products. They are constructed of raw materials which
deliver as much process latitude as is possible to the
end user. Unfortunately, many of the same qualities that
allow them to meet these process requirements also make
them susceptible to environmental changes: namely, prolonged
exposure to extreme temperatures.
response to some recent tape breaking problems, we
have published these guidelines:
guide (shoe) clearances — Tape guides
should be designed to take slit width tolerance
into consideration. I.e. 13mm tape should dictate
a 13mm tape guide ±0.127mm (Dorrie's stated
slit width tolerance).
of FlockTape™ — Warming
of Dorrie FlockTape™ (via heat-gun, hot shoe,
etc) prior to presentation to either guides or
the die face will help to alleviate breaking problems.
The heat will soften any camber or wrinkles in
the tape, thereby presenting a flat, straight surface
to the die.
- FlockTape™ Tension — The
unwind process should be designed to isolate the
unwind from the die and place minimal tension on
the system. This will minimize tape breaks, especially
in the proximity of splices.
Face Protection — Some processes
incorporate a small piece of Teflon® (or similar)
to protect the backside of the FlockTape™ as
it enters the die. Hot steel touching the backside
of the tape prior to profile application will cause
help or advice in implementing any of these process
suggestions, contact your Dorrie representative by
calling (203) 846-2087.