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发明授权
CN107867717B 基于空心结构紫色TiO2的米氏共振防伪产品及其防伪方法 有权

基于空心结构紫色TiO2的米氏共振防伪产品及其防伪方法
摘要：
本发明公开了一种基于空心结构紫色TiO2的米氏共振防伪产品及其防伪方法，应用于商品防伪鉴定。所述防伪产品以空心结构TiO2材料作为防伪材料，所述防伪材料中，TiO2空心球的壳层厚度为25‑15 nm，内部直径为170‑190 nm；其步骤为：空心结构紫色TiO2材料制备；防伪图案制作；材料的喷涂；介质转变颜色变化；介质复原颜色恢复。本发明提供的米氏共振防伪产品和防伪方法具有颜色变化独特，响应速度快，人眼易分辨的优点，不易被仿制，防伪水平高。
摘要（英）：

The invention discloses a Mie resonance anti-counterfeiting product based on hollow structure purple TiO2 and an anti-counterfeiting method of the Mie resonance anti-counterfeiting product and is applied to commodity anti-counterfeiting authentication. The anti-counterfeiting product takes a hollow structure TiO2 material as an anti-counterfeiting material, and TiO2 hollow spheres in the anti-counterfeiting material have the shell thickness of 15-25 nm and inner diameter of 170-190 nm. The hollow structure purple TiO2 material is prepared in the following steps: anti-counterfeiting pattern production; material spraying, medium conversion color change and medium restoration color recovery. The Mie resonance anti-counterfeiting product and the anti-counterfeiting method have the advantages that Mie resonance anti-counterfeiting product has unique color change and high response speed, is easy to distinguish by human eyes, cannot be copied easily and has high anti-counterfeiting level.

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