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Title:
ANTI-COUNTERFEITING ELEMENT AND MANUFACTURING METHOD THEREFOR, AND ANTI-COUNTERFEITING PRODUCT
Document Type and Number:
WIPO Patent Application WO/2022/170879
Kind Code:
A1
Abstract:
An anti-counterfeiting element and a manufacturing method therefor, and an anti-counterfeiting product. The anti-counterfeiting element comprises a substrate (6); the substrate (6) comprises a first surface and a second surface; the manufacturing method comprises: producing a diffuse reflection structure (2) on the first surface of the substrate (6); covering the surface of the diffuse reflection structure (2) with a reflective layer (3) in a same type; and forming a corresponding micro-hollow sub-region (4) according to a presentation angle of a dynamic feature presented with the change of an observation angle and angle distribution information of the diffuse reflection structure (2). An optically variable anti-counterfeiting element (1) presents a multi-color dynamic feature, and has a layout rule that cannot be directly identified, thereby enhancing the counterfeiting difficulty in multiple dimensions such as microstructure design and manufacturing processes, and improving the anti-counterfeiting resistance.

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Inventors:
SUN KAI (CN)
ZHANG WEIWEI (CN)
ZHU JUN (CN)
Application Number:
PCT/CN2021/143392
Publication Date:
August 18, 2022
Filing Date:
December 30, 2021
Export Citation:
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Assignee:
ZHONGCHAO SPECIAL SECURITY TECHNOLOGY CO LTD (CN)
CHINA BANKNOTE PRITING AND MINTING CORP (CN)
International Classes:
B42D25/30; B42D25/20; B42D25/40
Domestic Patent References:
WO2016029692A12016-03-03
Foreign References:
CN111746172A2020-10-09
CN112339471A2021-02-09
CN109291684A2019-02-01
CN111746171A2020-10-09
CN104647935A2015-05-27
CN102956147A2013-03-06
CN111836727A2020-10-27
CN207302479U2018-05-01
CN103035166A2013-04-10
CN109895526A2019-06-18
Attorney, Agent or Firm:
KANGXIN PARTNERS, P.C. (CN)
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