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Diagraph's Blog


Diagraphs Blog covers the latest in coding and labeling products

Where's My Code?

Tiny laser code on package      


Where’s My Code?

By Chris Pangallo, Product Manager – Continuous Inkjet (CIJ) and Laser

All types of manufacturers - alcohol, tobacco, pharmaceutical, software, and music, to name a few, need to be mindful of potential loss through counterfeit trade or product diversion. Packaging is often the last line of defense in protecting ones product and, ultimately, ones brand.

An unobtrusive and effective way to track products from production to market is with the addition of secure coding. To that end Linx Continuous Ink Jet Printers (CIJ) offer inks for discrete coding. These inks are nearly invisible under normal light but fluorescent blue or red under UV light. Manufacturers use them to add internal codes onto the product packaging or directly onto the product itself.

These fast drying, solvent based inks are water resistant once dry.  They’re formulated for use in Linx CIJ printers; some of the industry’s most reliable printers due to their superior sealed, no-adjustment printhead design and point of print viscosity control.

At Diagraph, we are dedicated in solving your coding and labeling challenges. Diagraph has been assisting customers for over 120 years improving production line efficiencies with simple, reliable, cost-effective coding and labeling solutions. Contact us to learn more about the Linx product line. Visit us at www.diagraph.com or contact us at 800.722.1125.


Linx Clear UV Readable Ink 1121

Linx Clear Security Ink 3160

Fast Dry MEK Based (1-2 Sec. dry time)

Non MEK Acetone/Ethanol (1-3 Sec. dry time)

Fluoresces Blue

Fluoresces Red

Can be removed with alkali solution

Unique dye makes replication difficult












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