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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 enhanced anti-counterfeiting function and more information

Active Publication Date: 2006-09-13
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

Examples

Experimental program
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Effect test

Embodiment 1

[0040] Example 1: A method for making multiple latent images on the metal surface, including designing patterns and engraving. The metal is a hard metal with a certain hardness. When designing the pattern, the metal surface is designed like figure 1 As shown in the densely distributed base point 1, the base point 1 is a circular altar shape with a large upper and a small lower concave. The design latent image multiplicity is five, and then the latent image pattern is decomposed into small pattern points, such as figure 2 , Figure 4 , Figure 6 , Figure 8 , Picture 10 As shown, the base point 1 is larger than the pattern point, and the pattern points of each double latent image pattern are designed in the same direction on the cone surface of the base point 1, as image 3 As shown, the pattern point 2 of the first double latent image is located on the bottom surface of the base point, such as Figure 5 As shown, the pattern point 3 of the second double latent image is located ...

Embodiment 2

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

Embodiment 3

[0044] Example 3: Manufacturing steps and methods are as in Example 1. The base point 1 is designed and engraved into a hemisphere when designing the pattern and engraving. Only the upper and lower parts of the cone of base point 1 are designed and engraved The pattern points of the double latent image form a double latent image on the metal surface, and a double latent image can be observed from two directions.

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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 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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Application Information

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Patent Type & Authority Applications(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
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