Dual-erasable anti-counterfeiting technology with multistable state and continuously controllable reflection color and application thereof in field of optical information coding

Abstract

The invention discloses a novel dual-erasable anti-counterfeiting method with multistable state and continuously controllable reflection color and an application in the field of optical information coding. The method and the application have the characteristics of high thermal stability and high fatigue resistance, and realize a material system consisting of the diarylethene compound based on theendogenous chiral steric hindrance type alkene bridge and liquid crystal. The diarylethene based on the endogenous chiral steric hindrance type alkene bridge has the following structural characteristics: the material system is composed of the diarylethene compound based on the endogenous chiral steric hindrance type alkene bridge and liquid crystal, has the advantages of simple processing, low rawmaterial cost, wide spectral color adjustment range and excellent thermal stability and fatigue resistance, and is expected to be further widely applied to the field of dual erasable anti-counterfeiting and optical information coding with good thermal stability and strong fatigue resistance.

Description

technical field [0001] The invention belongs to the fields of anti-counterfeiting technology and optical information coding, and specifically relates to the application of multi-stable double erasable anti-counterfeiting materials and technology with high thermal stability and strong fatigue resistance and the field of optical information coding. Background technique [0002] With the development of science and technology, anti-counterfeiting technology is more and more easy to be forged, making it difficult for consumers to distinguish the authenticity of products. To achieve multiple anti-counterfeiting protections, but the process is difficult, the cost is high, and the detection and identification are cumbersome. Therefore, there is an urgent need for a new anti-counterfeiting technology that is difficult to imitate, has low preparation cost, and is easy to identify. The traditional holographic anti-counterfeiting technology has a fatal shortcoming, it is easy to be eng...

AI Technical Summary

Problems solved by technology

As materials in the field of anti-counterfeiting and optical information coding, azo compounds (CN201210303520.0) and spiropyran compounds (CN97120274.5) are traditionally used, but their thermal sta

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