Optical anti-counterfeiting component and manufacturing method thereof

Abstract

The invention discloses an optical anti-counterfeiting component and a manufacturing method of the optical anti-counterfeiting component. The optical anti-counterfeiting component comprises an optically variable ink layer, a color matching ink layer, a metal-removing protective layer and a metal layer in sequence, wherein the optically variable ink layer and the color matching ink layer are partially overlapped, and the optically variable ink layer and the color matching ink layer reflect the same color at a certain angle, and reflect different colors at other angles; the metal-removing protective layer and the metal layer form a miniature pattern through a metal-removing technique; and the line size of the miniature pattern is 0.08mm-0.2mm. By the optical anti-counterfeiting component and the manufacturing method of the optical anti-counterfeiting component provided by the embodiment of the invention, on the basis of an optically variable matching anti-counterfeiting technique, and combined with a precise metal-removing technique, optically variable matching anti-counterfeiting and miniature pattern anti-counterfeiting are organically combined, and an anti-counterfeiting effect is effectively improved. In addition, through adjusting light transmissivity of the optically variable ink layer and the color matching ink layer, the problem of precise overprint control process is solved, and the yield is increased.

Description

Technical field [0001] The invention relates to an optical anti-counterfeiting element and a manufacturing method thereof. Background technique [0002] With the continuous development of anti-counterfeiting technology, the application of optical variable matching anti-counterfeiting and micro-pattern anti-counterfeiting in high-end anti-counterfeiting fields such as banknotes and securities has become increasingly common. Among them, the optical variable pairing anti-counterfeiting is an anti-counterfeiting technology realized by the optical variable ink layer and the color matching ink layer. The two are partially stacked, and they are the same color when viewed from a certain angle, and they appear different colors when viewed from other angles. This feature is beyond the reach of other inks and printing methods. Micropattern anti-counterfeiting is a kind of anti-counterfeiting technology with fine line structure made by printing or other technology, and the typical size of t...

AI Technical Summary

Problems solved by technology

Therefore, the optical variable ink and / or color matching ink in the optical variable pairing anti-counterfeiting technology cannot be used to produce a microscopic pattern that meets the requirements, and there is no anti-counterfeiting technology that organically combines the optical variable feature and the microscopic pattern.

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