A kind of double anti-counterfeit mark and the preparation method of double anti-counterfeit mark

An anti-counterfeit mark and double technology, applied in the field of anti-counterfeit marks, can solve problems such as anti-counterfeit products that are not suitable for products, and achieve the effect of increasing information storage, promoting application, and strong operability

Active Publication Date: 2018-09-21
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these anti-counterfeiting methods are not suitable for direct use in product anti-counterfeiting

Method used

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  • A kind of double anti-counterfeit mark and the preparation method of double anti-counterfeit mark
  • A kind of double anti-counterfeit mark and the preparation method of double anti-counterfeit mark
  • A kind of double anti-counterfeit mark and the preparation method of double anti-counterfeit mark

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Embodiment

[0040] A double anti-counterfeiting mark is characterized in that it includes a two-dimensional code and a quantum dot fluorescent color ring loaded on the two-dimensional code, and the quantum dot fluorescent color ring forms different ring colors, ring widths and A concentric multi-ring structure with ring spacing, the quantum dot fluorescent color ring forms a one-dimensional barcode in any radial direction.

[0041] Wherein, the quantum dot material is a quantum dot made of a semiconductor compound of group II-VI, group III-V, group IV-VI, or group IV of the periodic table of elements or its corresponding quantum dot with a core-shell structure; the core The quantum dot with shell structure is the semiconductor compound of group II-VI, group III-V, group IV-VI or group IV of the periodic table of elements as the core, and one of CdSe, CdS, ZnSe, ZnS, CdO, ZnO, SiO2 One or more core-shell quantum dots are shells.

[0042] A method for preparing a double anti-counterfeit ma...

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Abstract

The invention discloses a double anti-counterfeit mark and a preparation method for the double mark, belonging to the field of anti-counterfeit marks. The present invention takes the ordinary two-dimensional code containing the first layer of anti-counterfeiting information as the carrier, and introduces quantum dot fluorescent color rings with different ring colors, ring widths and ring spacings in the excited state to realize the second layer of anti-counterfeiting. The ring forms a one-dimensional code in the radial direction, and carries the terminal information of the one-dimensional code; the light parameters of the quantum dot fluorescent color ring are encoded and converted into specific identification information. The double anti-counterfeiting mark of the present invention has good photochemical stability, and the performance of the one-dimensional code and the two-dimensional code is superimposed. With the change of the quantum dot emission wavelength, the information content of the anti-counterfeiting mark is also continuously increasing. The anti-counterfeiting capability of the logo is improved, and the information storage capacity of the logo is improved.

Description

technical field [0001] The invention belongs to the field of anti-counterfeit marks, and in particular relates to a double anti-counterfeit mark and a preparation method of the double anti-counterfeit marks. Background technique [0002] In the information age, all kinds of information are ubiquitous, and information has become an indispensable part of life. With the development of the information age, the diversity of information reflects the diversity of the world, but at the same time it also requires people to be able to distinguish the authenticity of a variety of different information. The development of commodity economy promotes the increasing judgment of the authenticity of commodities. In order to get the information of the commodity well, people invented the barcode to store the information of the commodity, and people can get the basic information of the relevant commodity by scanning the barcode. But because the bar code is easy to be imitated, so the degree o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09F3/02G06K19/06
CPCG06K19/06018G06K19/06037G09F3/0297
Inventor 蒋向东赵秋妮李清曾诚
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA
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