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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 more information and enhanced anti-counterfeiting function

Active Publication Date: 2008-10-22
CHINA BANKNOTE PRINTING & MINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, multiple latent image technology 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. Various anti-counterfeiting technologies have also appeared, including technologies such as gravure printing on metal surfaces, forming optically variable images or single latent images on metal surfaces, but the anti-counterfeiting latent image patterns on these metal texture materials are all single-weight, and the anti-counterfeiting information The amount is relatively small, and the anti-counterfeiting function is relatively weak
Moreover, metal coins, metal badges, bank cards and other hard materials do not have multiple latent image patterns with a strong three-dimensional effect for anti-counterfeiting. At present, there are only ink latent image patterns printed by gravure printing, and multiple latent image patterns cannot be formed on the substrate itself. shadow pattern

Method used

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

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Embodiment 1

[0040] Embodiment 1: the making method of multiple latent image of metal surface layer, comprises design pattern, engraving plate, described metal is the hard metal with certain hardness, when designing pattern, design in metal surface layer as follows figure 1 The base point 1 shown in the dense distribution, the base point 1 is in the shape of a concave circular altar with a large top and a small bottom, and the design latent image multiplicity is five, and then decompose the latent image pattern into small pattern points, such as figure 2 , Figure 4 , Figure 6 , Figure 8 , Figure 10 As shown, the base point 1 is larger than the pattern point, and the pattern points of each latent image pattern are designed in the same direction on the cone surface of the base point 1, such as image 3 As shown, the pattern point 2 of the first latent image is located on the bottom surface of the base point; as Figure 5 As shown, the pattern point 3 of the second latent image is lo...

Embodiment 2

[0043] Embodiment 2: The manufacturing steps and methods are as in Embodiment 1, the base point 1 is designed and engraved into a conical shape when designing the pattern and the engraving plate, and only the upper, lower, left and right four parts of the cone surface of the base point 1 are designed The pattern point of the quadruple latent image is formed, and a quadruple latent image is formed on the metal surface, and one latent image can be observed from four directions respectively.

Embodiment 3

[0044] Embodiment 3: The manufacturing steps and methods are as in Embodiment 1, the base point 1 is designed and engraved into a hemispherical shape when designing the pattern and the engraving plate, and only the upper and lower parts of the cone surface of the base point 1 are designed and engraved. The pattern point of the double latent image forms a double latent image on the metal surface, and one latent image can be observed from two directions respectively.

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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.

Description

technical field [0001] The invention relates to a metal surface anti-counterfeiting technology, in particular to a method for making multiple latent images on the metal surface for anti-counterfeiting. Background technique [0002] At present, anti-counterfeiting technologies emerge in endlessly, mainly used in anti-counterfeiting such as banknotes, bills, securities, etc., including gravure printing, watermarking, white watermarking, latent image and other technologies. In addition, multiple latent image technology 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. Various anti-counterfeiting technologies have also appeared, including technologies such as gravure printing on metal surfaces, forming optically variable images or single latent images on metal surfaces, but the anti-counterfeiting latent image pat...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41N1/24B41N1/04B44F1/00B41C1/00B41K3/36B41M3/14
Inventor 李军骆富文季文祥李挺王安云
Owner CHINA BANKNOTE PRINTING & MINTING