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Manufacturing method of antifalse seal

A production method and seal technology, applied in the direction of photographic plate-making process, printing, and checking the correctness of marks on the patterned surface, can solve the problems that anti-counterfeiting seals cannot meet anti-counterfeiting requirements, and achieve the effect of ensuring authenticity and preventing duplication

Active Publication Date: 2008-08-13
CHINA BANKNOTE PRINTING & MINTING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

With the advancement of science and technology, the existing anti-counterfeiting seals can no longer meet the anti-counterfeiting requirements

Method used

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  • Manufacturing method of antifalse seal
  • Manufacturing method of antifalse seal
  • Manufacturing method of antifalse seal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Embodiment 1, an anti-counterfeit seal, is made according to the following steps:

[0021] 1. Vectorize the stamp artwork so that the entire stamp content can be edited graphically;

[0022] 2. Use professional banknote anti-counterfeiting software to make flower balls and shading;

[0023] 3. Position the pattern and text of the seal, then superimpose the prepared anti-counterfeiting pattern on the surface of the stamp pattern, and then turn it into a white line of 0.03-0.15mm, so that it can be printed out, and at the same time achieve the effect of anti-scanning;

[0024] 4. Output the successfully produced seal artwork into film through a laser phototypesetter, with a precision greater than or equal to 4000dpi;

[0025] 5. The original film is made into metal (copper, steel, gold, silver) stamps through the printing and corrosion process;

[0026] 6. Reconvert the anti-counterfeiting pattern superimposed on the surface of the seal into black lines, arrange it acco...

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PUM

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Abstract

An anti-forge seal is composed of a main body and a seal surface with the convex words, pattern and peripheral frame, and the anti-forge pattern formed by the concave lines. Its preparing process includes such steps as designing the draft, vector quantizing, using professional anti-forge software for paper money to prepare the background pattern, locating pattern and words of seal, overlapping, laser typesetting to output film, printing-down corrosion to obtain metallic seal, converting the antiforge pattern to black lines, making locating frame, using laser typesetter to output transparent film and preparing seal card.

Description

technical field [0001] The invention relates to a method for making a seal, in particular to a traditional seal with anti-scanning and anti-duplication hidden patterns on the surface, which can be used to identify authenticity through a special seal card and a method for making the same. Background technique [0002] Existing seals are generally made by engraving techniques, which are easier to be imitated, so the harm caused is extremely great. In order to prevent counterfeiting of seals, various anti-counterfeiting technologies are applied to seals, among which, compared with other methods such as using anti-counterfeiting ink, shading anti-counterfeiting is an anti-counterfeiting technology with the lowest cost and better anti-counterfeiting effect. There are more and more anti-counterfeit seals utilizing shading anti-counterfeiting technology now. For example, the Chinese utility model patent specification "anti-counterfeit seal" whose announcement number was "CN 2486328...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B41K1/38G06K5/00G03F7/00
Inventor 张勇
Owner CHINA BANKNOTE PRINTING & MINTING