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Laser Engraving Tips
The key to laser engraving 2-ply or 3-ply laser plastic is to use a material that allows
the engraver to pass as quickly and with as little power as possible across the surface
color and still produce a clean, bright marking. IPI laser plastics are composed of
materials which are "laser friendly", thereby providing the ability to engrave with
virtually no smoke residue, no yellowing of core, and no melting of graphics in most instances.
Below are trouble-shooting tips to help prepare you as to what to expect from our laser
engraving experience with IPI materials.
At the bottom of this page is a chart with suggested settings for laser engraving and
vector cutting. Each laser machine (even within one brand) has its own "identity". This
identity consists of actual wattage output (i.e. a 25-watt laser may actually output 30,
35 or more watts), optics focus and cleanliness (a strict cleaning schedule must be kept
to), and the type of exhaust system for pulling away smoke residue. Because of these
variables, the suggested settings are merely starting points and need to be fine-tuned
based on your machine's identity and some other factors, below.
IPI materials are engineered for clear, bright laser marking in one pass, when fine-tuned
with the proper settings However, the type of graphics and choice of color will also affect
the settings, and adjustments may have to be made.
A fine-line logo or graphic will use different settings than a bold, large one. The larger
and bolder the graphic, the more important are proper focus, clean optics and the use of a
standard resolution lens (to provide a wider beam to properly clean out the color surface).
It may be necessary to increase the DPI (dots per inch) and/or PPI (pulses per inch), and or
even do a second pass at a lower power setting (around 2O%)-- all depending on the size and
boldness of your graphics. Sometimes laser engraving might not be the best way to accomplish
your goal; rotary engraving may be more suitable.
Color can also affect your settings. Some colors (i.e., red, blue) are packed more heavily
with pigment and may be, depending on the size and boldness of your graphics, harder to
clean out. The suggestions above should be helpful.
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