Anti-counterfeiting material and preparation method thereof

Abstract

The invention discloses anti-counterfeiting material and a preparation method thereof. The anti-counterfeiting material comprises anti-counterfeiting micro-nano modules which are mutually discrete in the unbound state. Each anti-counterfeiting micro-nano module comprises first and second micro-nano recognition layers. The first and second micro-nano recognition layers comprise base material layers used for processing anti-counterfeiting recognition feature layers and micro-nano structural layers. Anti-counterfeiting label patterns are arranged in the anti-counterfeiting. The first and second micro-nano recognition layers have different or same absorptivity, light transmittance and reflectivity. In terms of the structure, anti-counterfeiting information and features with complicated internal structures are made from the inside to the outside and processed layer by layer. The appearance of the anti-counterfeiting micro-nano modules are in integrally wrapping states. External anti-counterfeiting incident spectrums are refracted by the first and second micro-nano recognition layers and subjected to mutual comparisons, mapping and mixture between an emitted light source and the anti-counterfeiting label patterns such that a light source of the anti-counterfeiting micro-nano modules reflected to an anti-counterfeiting recognition system comprises optical spectrum coding anti-counterfeiting information with high cost in reverse cracking.

Description

technical field [0001] The invention relates to the field of anti-counterfeiting technology, in particular to an anti-counterfeiting material and a preparation method thereof. Background technique [0002] Among the existing anti-counterfeiting technologies, watermarks, colored fibers, fluorescent ink printing, shapes and random distribution of micro-dots or tiny marks are mostly used as anti-counterfeiting means: [0003] For example, the announcement number is CN101673341A, and the patent title is a patent for a micro-dot anti-counterfeiting method, which discloses an anti-counterfeiting material, discloses an anti-counterfeiting technology, and especially relates to a micro-dot anti-counterfeiting method. "The method includes the following steps: (1) ) to provide an anti-counterfeit point; to provide a kind of glue, to mix the anti-counterfeit point into the glue; (2) to point the glue mixed with micro-dots on the load; (3) to cure the glue; (4) to take pictures of the gl...

AI Technical Summary

Problems solved by technology

The technical solutions disclosed by the patents with the announcement number CN101673341A, CN102267287A and CN1350274A can solve most of the anti-counterfeiting needs, but they are made of a single material, and the anti-counterfeiting material is a monochrome structure without layering and three-dimensionality. The anti-counterfeiting material formed is easy to be imitated;

[0010] Although the technical solution disclosed in the patent with the notification number CN105374283A uses multi-material, three-dimensional anti-counterfeiting materials as anti-counterfeiting means, it only etches amorphous silicon and then inlays metal on the hollowed-out area of ​​amorphous silicon to etch amorphous silicon. In the hollowed out area, the anti-counterfeiting material is only composed of 2 materials, and it is also easy to be imitated

[0011] Although the technical solutions disclosed in the patents with the notification numbers CN105303393A and CN105469698A use rare earth oxide materials mixed with photocurable glue, different rare earth oxi

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