UV pigments

Evaluating Characteristics of Organic UV Pigments for Security Printing Applications

This guide is tailored for chemical engineers specializing in ink formulation, providing insights into how industry experts measure and evaluate these characteristics. Understanding these parameters and the methodologies used will help you make informed decisions when comparing different products. 1. Lightfastness Definition: Lightfastness refers to the resistance of pigments to fading or degradation when exposed […]

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Inorganic UV Pigments vs Organic UV Pigments

Developing invisible UV pigments, both organic and inorganic, for security inks involves several challenges due to the specific requirements and properties needed for such applications. Here’s an overview of the different challenges involved in each type: A. Organic Invisible UV Pigments: Photostability: Organic compounds are generally more susceptible to photodegradation caused by UV radiation. Ensuring

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