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Multi-Level Features - Overt • Covert • Forensic

Multi-level features combine the authentication properties of two or more feature types— overt, covert, and forensic— creating unique, highly secure authentication devices.

Holographic Features

Line Width Modulation (LWM)

Various image and text eﬀects can be created by mathematically manipulating line width, length, and height.

Printed Features

Alexagram®

Utilizing ITW Security Division’s proprietary technology, Alexagram® consists of an overt holographic image superimposed in perfect registration over a covert Imaprotek® feature simulating a full color photograph. When printed with solvent reactive inks, Alexagram® delivers three levels of security in a single feature

Solvent Sensitive Printing

Solvent reactive inks can be employed with a variety of security features (visible printing, Gradient UV, Imaprotek®) to expose attempted chemical alterations.