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Anticounterfeit seal, and its manufacturing method and complete detecting film

A manufacturing method and technology for seals, applied in the field of anti-counterfeiting seals and inspection films, can solve the problems of few seal features, high technical requirements, uneven images, etc., and achieve the effect of simple implementation, low technical requirements, and anti-counterfeiting effects.

Inactive Publication Date: 2006-08-09
陈锦昌
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, due to the aging of the seal, the clogging of the ink, the replacement of the mimeograph, the poor physical properties of the liner and the paper, and the uneven force of the stamper, the inspectors must conduct experiments to explain the differences, and the forged seals use Modern scanners, cameras and other high-precision equipment record impressions, and computer compression and encryption technologies are also used. At the same time, some professionals have also participated in forgery of official seals, etc., making the forgery of seals more and more standard and more sophisticated. The formed seal is more difficult to distinguish from the real stamp seal
In the traditional inspection, the external features such as uneven lines, uneven images, and different symbols with the same meaning are becoming less and less obvious
The simple printing process of existing seals leads to fewer and fewer features of each seal, too few anti-counterfeiting functions, and technically unreliable identification, which brings difficulties to inspection and brings opportunities for counterfeiters. machine
[0003] A Chinese patent discloses a machine-readable anti-counterfeiting method for invisible encryption of a holographic self-carrying mobile database. The patent application number of the holographic self-carrying mobile database invisible encryption and machine-readable anti-counterfeiting method is 200410014384.9, and the application date was March 22, 2004. The invention patent application discloses an anti-counterfeiting method: it combines the original anti-counterfeiting technology with modern high-tech anti-counterfeiting technology to form a self-portable Encrypted database-type machine-readable anti-counterfeiting method, and computer system is used to realize electrified and networked comprehensive management, but the disadvantage of this anti-counterfeiting method is that the implementation plan is complicated and the technical requirements are high

Method used

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  • Anticounterfeit seal, and its manufacturing method and complete detecting film
  • Anticounterfeit seal, and its manufacturing method and complete detecting film
  • Anticounterfeit seal, and its manufacturing method and complete detecting film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] The manufacture method of anti-counterfeit seal of the present invention comprises the steps:

[0052] step one

[0053] Generate a dot matrix image according to the preset anti-counterfeiting image;

[0054] A) The background image is generated by extracting fixed points or drawing grid lines to generate a bitmap of the background image;

[0055] B) generate the anti-counterfeit image bitmap in the same way as step A;

[0056] C) the anti-counterfeit image bitmap generated in step B is dislocated relative to the background image bitmap generated in step A and covered on the background image bitmap generated in step A to form a bitmap, anti-counterfeit image bitmap The dislocation with the bitmap of the background image is generated by moving the bitmap of the anti-counterfeiting image relative to the bitmap of the background image by a certain distance, and the moving distance is smaller than the center distance between two points in the bitmap of the background image....

Embodiment 2

[0062] Combine below Figure 1 to Figure 18 , further illustrate the manufacture method of anti-counterfeit seal of the present invention.

[0063] Step 1: Generate bitmap

[0064] The following two anti-counterfeit images are taken as examples to illustrate the generation principle and display principle of the bitmap:

[0065] The bitmap is composed of the background bitmap, the first anti-counterfeiting image bitmap and the second anti-counterfeiting image bitmap. Its specific generation steps are as follows:

[0066] A) Generate background image bitmap:

[0067] The background image uses a solid color pattern, black in this example, such as figure 1 As shown, the background image bitmap is obtained by extracting fixed points from the upper left or drawing white grid lines, as shown in figure 2 As shown, if a fixed point is extracted, the point width of the extracted fixed point is 0.05mm. Of course, a larger or smaller point can also be used. In this embodiment, the p...

Embodiment 3

[0082] The difference between the present embodiment and the second embodiment is that the step of generating the bitmap in step 1 is as follows:

[0083] A) generate a background image bitmap;

[0084] B) generating the first anti-counterfeit image bitmap;

[0085] C) generate the second anti-counterfeit image bitmap;

[0086] D) Move the first bitmap of the anti-counterfeiting image to the left or right for a certain distance relative to the bitmap of the background image and cover it on the bitmap of the background image; The bitmap is moved to the left or right by a certain distance and overlaid on the background image bitmap to generate a bitmap.

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PUM

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Abstract

The disclosed stamper of guiding against false includes handle and surface of stamper. There is pattern of containing information of enterprise or individual on surface of stamper. There is dot chart on stamper, and the dot chart contains information of guiding against false. The invention also discloses an inspection film. Characters are that besides the said information, which is identical to information on stamper, distributed on the film, lines in use for distinguishing true / false of stamper are also distributed on the film. Being matched to the dot chart, the said lines are in use for distinguishing whether a stamper is true or false by sheathing the inspection film on die plate. The invention also discloses method for manufacturing stamper of guiding against false. Features are: simple scheme, low technique nonreproducibility of die plate, impossible to present invisible image under normal condition, except special dedicated inspection film.

Description

【Technical field】 [0001] The invention relates to a seal, in particular to an anti-counterfeit seal. The invention also relates to the manufacturing method of the anti-counterfeit seal and the inspection film matched with it. 【Background technique】 [0002] At present, due to the aging of the seal, the clogging of the ink, the replacement of the mimeograph, the poor physical properties of the liner and the paper, and the uneven force of the stamper, the inspectors must conduct experiments to explain the differences, and the forged seals use Modern scanners, cameras and other high-precision equipment record impressions, and computer compression and encryption technologies are also used. At the same time, some professionals have also participated in forgery of official seals, etc., making the forgery of seals more and more standard and more sophisticated. The formed seal is more indistinguishable from the real stamp seal. In the traditional inspection, the external features ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06K19/06G06K5/04G06K1/12G09F3/02
Inventor 陈锦昌
Owner 陈锦昌
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