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Printing
is used for making a mark or impression on a substrate for decorative or
informational purposes.
Pad
printing is a simple, low pressure process for printing on a flat or
irregular shaped surfaces. In the pad transfer
process,
a metal plate or "cliche" containing an etched pattern is
covered with ink. A "doctor blade" then removes
the
ink from all but etched pattern. A soft silicone rubber pad contacts,
presses on and picks up the ink from the
etched
recesses in the plate. This pad, carrying the inked pattern in reverse,
is pressed against the part to be printed
and
transfers the pattern to its surface.
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