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Unlocking anti-counterfeiting method

An unlocking and locking technology, which is applied in the field of anti-counterfeiting, can solve the problem of realizing one layer of outlets, and achieve the effect of good information hiding, clear printing and wide application

Active Publication Date: 2013-12-18
THE PEOPLES PRINTING PLANT OF GUANGZHOU CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to disclose the unlocking type anti-counterfeiting method, which solves the problem that only one weight can be realized by adopting network points

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The unlocking type anti-counterfeiting method shown in Embodiment 1:

[0040] Step 1, generating bitmap A with vector direction and including several dots in the drawing software for printing;

[0041] Step 2, formulate the first pattern obtained for the first re-unlocking, superimpose the bitmap A and the first pattern together, and place the dots in the bitmap A within the outline of the first pattern along the direction of the vector Make the first displacement in the direction of the angle m, and then delete the first pattern;

[0042] Step 3, formulating the second pattern obtained for the second re-unlocking, and superimposing the second pattern with the dot pattern A after rotating the angle p relative to the first pattern; Make a second displacement along the direction of the angle n with the vector direction, and then delete the graphic C;

[0043] Step 4, printing the bitmap A after the above processing on the ticket sample;

[0044] Step five, superimpose ...

Embodiment 2

[0047] The unlocking type anti-counterfeiting method described in the second embodiment is as follows.

[0048] Step 1, generating a bitmap A comprising several dots in the drawing software for printing, the bitmap A is provided with a first vector direction X-axis and a second vector direction Y-axis perpendicular to the first vector direction X-axis; The X-axis is consistent with the horizontal arrangement direction of the dots in the dot pattern A, and the Y-axis is consistent with the vertical arrangement direction of the dots in the dot pattern A.

[0049] Step 2, formulate the first pattern obtained for the first re-unlocking, superimpose the first pattern and bitmap A, and then make the dots in the bitmap A within the outline of the first pattern along the X axis Shift once, then delete the first pattern:

[0050] If the first pattern includes graphic B, the dots in the bitmap A that are within the outline of graphic B are displaced b for the first time along the X axi...

Embodiment 3

[0064] The unlocking type anti-counterfeiting method shown in embodiment three includes

[0065] Step 1, generating a bitmap A with a polar coordinate system and including several dots in the drawing software for printing;

[0066] Step 2, formulate the first pattern obtained for the first re-unlocking, superimpose the bitmap A and graphic B, and align the dots in the bitmap A within the outline of the graphic B along with the poles in the polar coordinate system Make the first displacement of the distance s in the direction of the axis at an angle m, and then delete the pattern B, m can be 45°.

[0067] Step 3, formulating the graphic C obtained for the second re-unlocking, the graphic C is superimposed on the bitmap A after rotating the angle p relative to the first pattern, and the angle p satisfies p=90°; the bitmap A is in the graphic The dots in the contour of C are displaced for the second time along the direction of the angle n with the polar axis, and then the graphi...

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PUM

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Abstract

The invention discloses an unlocking anti-counterfeiting method which is a dual-branch unlocking anti-counterfeiting method using an unlocking diagram to unlock different anti-counterfeiting information. The method is good in information hiding performance, clear in printing, wide in application range and difficult to imitate and improves hiding performance and anti-counterfeiting performance of an unlocking anti-counterfeiting technology.

Description

technical field [0001] The invention relates to the technical field of anti-counterfeiting, in particular to an unlocking type anti-counterfeiting method. Background technique [0002] Unlocking anti-counterfeiting technology uses the interference principle of light to hide embedded anti-counterfeiting elements (such as text, images, etc.) An anti-counterfeiting technology in which information appears. The unlocking film is a film made and output according to the parameters of the anti-counterfeiting elements (such as the size and distance of the line or net), and it is cut into an appropriate size and easy to carry film block in practice. When in use, the unlocking diaphragm is superimposed on the pattern part with hidden information. During normal visual observation, these embedded anti-counterfeiting elements cannot be seen at all, and can only be seen after passing through the unlocking diaphragm. But present anti-counterfeit technology of unblanking generally just can...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B41M3/14G09F3/02
Inventor 贺政国史志雄黄昭
Owner THE PEOPLES PRINTING PLANT OF GUANGZHOU CO LTD