24 ENWW
Corrugated plastic
Also known as: corrugated or fluted polypropylene
Brand name examples: Corflute
®
, Coroplast
®
, Correx
®
Preparation
• The quality of corrugated polypropylene can vary greatly. A corona treatment is generally
applied when manufactured to increase the surface tension for better ink adhesion. This
corona treatment will diminish over time. Material that has be shipped long distances or
stored for an extended period of time will have more problems with ink adhesion.
• This material tends to hold static charge; avoid sliding the media from the stack or
carrying across carpeted surfaces.
• Review and follow the steps in the Static Electricity chapter of this guide.
• Ensure that media tables are attached and secured to the printer to provide a grounding
path for static loaded material.
• Media is often supplied un-square, so trimming it to square may be necessary for some
applications, such as edge-to-edge printing. Make sure all edges are cut clean and are
free of burrs and/or excess material.
• Wipe the printing surface with an anti-static tack cloth to remove static charge and any
dust or debris.
• If an anti-static tack cloth is not available, 90%-or-higher IPA on a lint-free cloth can
be used to remove dust or debris. Allow the sheet to sit out on the input table about 5
minutes to allow the IPA to evaporate and the static to dissipate.
Recommended print modes
• Depending on application, ink coverage and image content, all print modes may print
acceptably.
• Faster print speeds can be obtained without noticeable banding by feeding the media with
the flutes in parallel with the printhead carriage motion.
Printing
• Select Corrugated Plastic when configuring and loading these media.
• Non-white media may not be able to be detected by the onboard camera. If so, created a
copy of the Corrugated Plastic media using the Media Wizard and change the Detectable
by Printer option to No.
• Use the lowest possible UV lamp power setting to cure the ink.
• Media is heat-sensitive. It may require a higher vacuum setting, faster print modes, higher-
than-standard head height, and printing delays in some combination to achieve best
output.
• Use a Corrugated Plastic media profile from the RIP software.
Output handling
• Ink adhesion improves over 24 hours. Sometimes it is beneficial to wait 24 hours before
cutting full-bleed prints.
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