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Printing on Security Labels: VOID & Destructible Vinyl
“Warranty Void If Removed.” We see this label on electronics, pharmaceuticals, and asset tags. These are Security Labels (Tamper-Evident).
There are two main types:
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VOID Polyester: When peeled, it leaves the word “VOID” on the surface.
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Destructible Vinyl: When peeled, it shatters into tiny fragments like an eggshell.
The Printing Challenge: These materials are often top-coated with special varnishes to make them tamper-proof.
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The Problem: Standard wax ribbons often do not stick to these slick top-coats. The ink can be scratched off with a fingernail without triggering the tamper evidence!
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The Risk: A fraudster can simply wipe off the serial number and print a new one.
The Solution: Scratch-Proof Resin
To make a truly secure label, the ink must be as permanent as the label itself. You need Only Imaging Durable Resin (SP-500).
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Bonds to Top-Coats: It contains aggressive solvents that bite into the slick polyester/vinyl surface.
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Smudge Resistance: Once printed, it cannot be wiped off with alcohol or acetone.
Printer Settings for Security Labels
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Darkness: Usually needs to be higher (25-30) to force the resin into the material.
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Speed: Slow down! Security materials are thick. Print at 2-4 IPS for best adhesion.
Conclusion: Secure the Ink, Not Just the Label
A security label with removable ink is useless. Test your ribbon scratch resistance immediately after printing. If it fails, switch to Only Imaging SP-500.
ONLY IMAGING is a leading supplier of labels, printing equipment and associate consumables, including TTR products in various widths and lengths. Please take the opportunity to learn more about our range of high-quality thermal transfer ribbons and explore our other products for any further questions you may have click Here.
