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Logo anti-counterfeiting method

A technology of marking and anti-counterfeiting marking, applied in the field of marking anti-counterfeiting, can solve the problem of not easy to imitate and so on

Inactive Publication Date: 2014-09-03
BEIJING WUZI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Moreover, there are great technical difficulties in making materials into nanoscale. The method theory and production equipment used are not understood and adopted by the general public, so it is very difficult to imitate and can well limit counterfeiting. The behavior of imitating anti-counterfeiting marks by cracking means

Method used

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Embodiment Construction

[0022] In order to further explain the technical means and functions adopted by the present invention to achieve the intended invention purpose, the structure, features and functions of the present invention will be described in detail below in conjunction with the accompanying drawings and preferred embodiments.

[0023] In this embodiment, an anti-counterfeiting method for marking, a color-developing layer is provided on the anti-counterfeiting mark, the color-developing layer is printed or coated on the surface of the substrate, and the color-developing layer uses the compound "1,2,3,4,5-pentaphenyl base-1,3-cyclopentadiene (PPCP)" and made into a nanoscale structure; the color-developing layer is excited by light of different wavelengths, and the color-developing layer can emit light of different colors; the surface of the color-developing layer is covered Has a transparent protective layer.

[0024] The macrostructure of the anti-counterfeiting mark described in the prese...

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PUM

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Abstract

The invention discloses a logo anti-counterfeiting method. A color developing layer is arranged on an anti-counterfeiting logo. The color developing layer is printed or coated on the surface of a substrate. The color developing layer is made of the compound 1,2,3,4,5-five phenyl-1,3-PPCP and is made into a nanoscale structure. Light with different wavelengths is used for exciting the color developing layer so that the color developing layer can emit light in different colors. The surface of the color developing layer is covered with a transparent protection layer. In the using process of the anti-counterfeiting logo, the emitted light corresponds to the excited light with the corresponding wavelength; due to the fact that the light emitting effect can only be achieved on a nanoscale material, the manufacturing method is difficult to grasp, the logo is difficult to copy technically, and then a high anti-counterfeiting effect can be achieved.

Description

technical field [0001] The invention relates to a mark anti-counterfeit method, in particular to a nanoscale organic luminescent material used in the anti-counterfeit method. Background technique [0002] Printed anti-counterfeiting marks are generally installed on existing commodities or coins, and the anti-counterfeiting marks have appeared for a long time. Although they have been improved and replaced several times, these anti-counterfeiting marks are still easy to be deciphered and imitated. With a high degree of simulation, it is difficult to distinguish between true and false by using professional identification tools, even by experts in this field. The extent to which technology cannot be broken through can still be imitated through cracking. [0003] In many technical fields, nanotechnology has been widely used, and some nanoscale organic materials can exhibit special optical properties, such as multicolor luminescence. Moreover, there are great technical difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B42D25/445C09K9/02
Inventor 邬跃刘红张涵
Owner BEIJING WUZI UNIVERSITY
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