Manufacturing method of metal surface multiple latent image and antifalse product made by said method

A production method and latent image technology, which can be applied to patterns characterized by light projection effects, printing of special varieties of printed matter, printing plates, etc. problem, to achieve the effect of enhanced anti-counterfeiting function and more information
CN1830681AActive Publication Date: 2006-09-13CHINA BANKNOTE PRINTING & MINTING
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA BANKNOTE PRINTING & MINTING
Publication Date
2006-09-13

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Abstract

A method for preparing multiple latent images on the metal surface for anti-forge purpose includes such steps as designing pattern while decomposing the pattern with multiple latent images into many fine pattern dots with a certain angle between adjacent dots, making the dots for one latent pattern position in the conical basic dot in same direction, carving plate by carving the pattern dots on the conic surface or bottom surface of basic dot, making metallic die, and punching it on the object.
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Description

Technical field

[0001] The invention relates to a metal surface layer anti-counterfeiting technology, in particular to a method for making multiple latent images on the metal surface layer for anti-counterfeiting. Background technique

[0002] At present, anti-counterfeiting technologies are emerging one after another, mainly used in anti-counterfeiting such as money printing, bills, securities, etc., which include various technologies such as gravure, watermark, white watermark, and latent image. In addition, the technology of multiple latent images is used on some banknotes or bills, that is, according to the light and shadow blocking effect in different directions, multiple latent image patterns hidden in interference patterns or basic patterns can be observed. On metallic materials Various anti-counterfeiting technologies have also appeared, including gravure printing on metal surfaces, forming optically variable images or single-layer latent images on the metal surface, etc....

Claims

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