Production method of pattern in magnetic pigment fragment-containing coating layer and production device thereof

Abstract

The invention relates to a device for producing a pattern in a magnetic pigment fragment-containing coating layer, which comprises two magnetic field generators, two solidified light sources, a light barrier, a baffle plate and a base material transmitter, wherein the base material transmitter comprises two wheel shafts arranged at two ends, and a feed belt which takes the two wheel shafts as shaft drive, one magnetic field generator, one solidified light source, the other magnetic field generator and the other solidified light source are sequentially arranged along with the direction from one wheel shaft to the other wheel shaft, and the surface of the feed belt is provided with a base material which is coated or printed with the magnetic pigment fragment-containing magnetic ink coating layer. The visually-changed safe pattern disclosed by the invention belongs to a first-line and second-line anti-counterfeiting synthesis technique, the true and false can be visually identified without any tools, and the magnetism of the pattern can be detected by magnetism detecting equipment as well; and the anti-counterfeiting ink which symmetrically changes by means of light and shade (color) along with the change of the visual angle is high in preparation difficulty, the effect is very hard to imitate, and the fidelity effect is extremely high.

Description

[0001] technical field [0002] The invention relates to a method and device for producing an anti-counterfeit pattern, in particular, the invention relates to a method and device for producing a pattern in a coating containing magnetic pigment fragments. Background technique [0003] All kinds of anti-counterfeiting products play an important role in every corner of the world; scientific research institutes and enterprises at home and abroad all require modern anti-counterfeiting technology to be "easy to identify and difficult to forge". Products with low manufacturing process are easy to be imitated. As time goes by, a large number of anti-counterfeiting technologies such as fluorescent anti-counterfeiting, temperature-changing anti-counterfeiting, and holographic patterns with relatively simple structures gradually lose their anti-counterfeiting effects and begin to withdraw from the anti-counterfeiting market. [0004] In 2006, Xibai Holdings Co., Ltd. disclosed the pat...

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Problems solved by technology

[0004] In 2006, Xibai Holdings Co., Ltd. disclosed the patent number (200480018382.5) of "Method and Device for Inducing Patterns in Coatings Containing Magnetic Particles by Magnetic Field Action". method, to a certain extent, has played a positive anti-counterfeiting role; but the defect of this method is that each area of ​​the pattern is controlled by the magnetic field generated by the same magnetic circuit plate, and is cured at one time, while the magnetic fragment pigment at the critical point of each area is subject to multiple Influenced by the magnetic lines of force in different directions, the arrangement angle of the magnetic fragments and pigments at the critical point is not easy to control, causing the critical point to be blurred and unclear, and it is impossible to form a high-precision anti-counterfeiting pattern.

This invention is only the prototype of the application of magnetic flake pigments. It only considers the magnetic detection and anti-counterfeiting of magnetic pigments, and does not consider that the pigments can be oriented in a magnetic field to form anti-counterfeiting patterns.

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