Rainbow Laser Anti-Counterfeit Labels

These labels rely on the principles of optical diffraction. Microstructures are created on the paper's surface layer to form rainbow laser patterns, which exhibit dynamic, color-shifting effects under light. Simultaneously, digital printing technology is used to apply unique serial numbers or encrypted information in designated areas (such as the back or under a specific coating). Some label designs feature a "void" or "destructible" structure—when the top layer is peeled away, pre-printed information remains on the substrate, and the label cannot be restored, thus achieving physical anti-transfer protection. Other formats provide security through the direct combination of laser effects and digital elements.

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