Printing anti-counterfeit inks mainly include invisible fluorescent ink anti-counterfeiting, visible fluorescent ink anti-counterfeiting, temperature change ink anti-counterfeiting, spot color anti-counterfeiting and other four kinds.
1, invisible fluorescent ink anti-counterfeiting
The material used is invisible fluorescent ink. The printing process is simple. The ink is printed with invisible patterns or texts. Under the irradiation of ultraviolet light, the pattern is bright and clean. The detection is convenient and the scope of application is wide. The disadvantage is that it is invisible or colorless. Its registration is difficult.
2, tangible fluorescent ink anti-counterfeiting
The material used is a tangible fluorescent ink, the printing process is simple, the registration is accurate, and the printing effect is the same as the ordinary ink printing effect. However, under the irradiation of ultraviolet light, the printed product exhibits abnormal light, which can be distinguished from ordinary ink.
3, temperature change ink anti-counterfeiting
The materials used are temperature change inks, which are colored inks that are colorless and colorless inks are colored. The temperature range varies from high to low, with reversible and irreversible points. The method has simple printing process and convenient detection.
4, spot color anti-counterfeiting
Security soft spot color is an integral part of an important anti-counterfeiting technology anti-counterfeiting packaging technologies. Because the spot color is a special color formulated by an ink manufacturer or a packaging company with a special formula, it is difficult to imitate, and the hue is also difficult to be imitated. Generally, it cannot be formulated by other inks, and the price is similar to ordinary ink, and Anti-counterfeiting effect is good.
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