Embossment light variation anti-counterfeiting element

Abstract

The invention firstly provides an embossment light variation anti-counterfeiting element, which is at least provided a magnetic light variation pigment layer and a dark background layer; a magnetic light variation pigment can be distributed in a three-dimensional hierarchical mode under the interaction of a magnetic positioning device and a variable electromagnetic field; the three-dimensional hierarchical distribution of the light variation pigment is achieved through different magnetic fields in order to achieve the embossment effect; rolling light variation characteristics of different shapes are achieved through a magnetic stabilization device; a final printed product has the embossment effect and the dynamic characteristic of rolling light variation, and the vision is easy to recognize; and furthermore, the dark background layer can be combined with two-line machine-readable anti-counterfeiting characteristics such as infrared, magnetism, fluorescence, hidden information and the like, and the embossment light variation anti-counterfeiting element which can meet the requirement of the public for easy recognition and can be compounded with multi-stage anti-counterfeiting elements difficult to forge is formed.

Description

technical field [0001] The invention relates to an anti-counterfeit technology, in particular to an anti-counterfeit element with an embossed optically variable pattern and a manufacturing method thereof. Background technique [0002] Although Guangcai optical variable anti-counterfeiting technology is currently the most advanced public anti-counterfeiting technology in the world, it is widely used in circulation banknotes, commemorative banknotes, passports, and cigarette packs in many countries, but the current optical variable fixed magnetism method is realized by one-time fixed magnetism method Brilliant optical change effect; "Research and Development and Application of a Light Change Sensitive Printing Technology" published by Ou Liguo of Changde Jinpeng Printing Co., Ltd. and Zhu Yougen of Beijing Qiliang Haide Printing Co., Ltd. has mentioned the method of shading distribution and fixed magnetism but It also only acts on different parts of the same overall pattern, a...

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Problems solved by technology

[0002] Although Guangcai optical variable anti-counterfeiting technology is currently the most advanced public anti-counterfeiting technology in the world, it is widely used in circulation banknotes, commemorative banknotes, passports, and cigarette packs in many countries, but the current optical variable fixed magnetism method is realized by one-time fixed magnetism method Brilliant optical change effect; "Research and Development and Application of a Light Change Sensitive Printing Technology" published by Ou Liguo of Changde Jinpeng Printing Co., Ltd. and Zhu Yougen of Beijing Qiliang Haide Printing Co., Ltd. has mentioned the method of shading distribution and fixed magnetism but It also only acts on different parts of the same overall pattern, and the fixed magnet modules are all on the same side of the print, basically making the optical variable pigments more distributed on the bottom layer, without forming a three-dimensional distribution feature

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