CN100410082C

CN100410082C - Antifalse seal and its manufacturing method

Info

Publication number: CN100410082C
Application number: CNB2006100207587A
Authority: CN
Inventors: 张勇
Original assignee: China Banknote Printing and Minting Corp
Current assignee: China Banknote Printing and Minting Group Co Ltd
Priority date: 2006-04-21
Filing date: 2006-04-21
Publication date: 2008-08-13
Anticipated expiration: 2026-04-21
Also published as: CN1830678A

Abstract

The present invention discloses an anti-counterfeiting seal and a manufacturing method thereof. A seal comprises a seal support and a seal face, wherein the seal face is provided with convex words, a pattern and a frame. The seal is characterized in that the convex part on the seal face is provided with an anti-counterfeiting pattern composed of engraving lines with the thickness of 0.03mm to 0.15mm. The manufacturing method of the anti-counterfeiting seal comprises the steps that a seal draft is processed in a vectorization mode; a flower ball and a shading are made by professional paper money and ticket anti-counterfeiting software; the pattern and the words of the seal are positioned, and a prepared anti-counterfeiting pattern is laminated to the surface of the seal pattern; the seal draft successfully prepared is output into a film by a laser typesetter, and the precision is larger than or equal to 4000 dpi; a film original edition is made into the metal seal by plate burning corrosion technology; the anti-counterfeiting pattern laminated at the surface of the seal is converted into black lines again to make a positioning frame, and a transparent film is output by the typesetter to make a signature card. The seal made by the method of the present invention has scanning and copying prevention effects.

Description

The preparation method of security stamp

Technical field

The present invention relates to a kind of preparation method of seal, particularly have anti-scanning, the anti-implicit decorative pattern that duplicates, the seal that can discern the false from the genuine by special-purpose signature card and preparation method thereof on the traditional seal surface.

Background technology

Existing seal generally all is to adopt engraving technology to make, and more easily by imitated, therefore the harm that brings is great.In order to prevent falsification of seal, various anti-counterfeiting technologies are used on the seal, and wherein, with respect to additive methods such as employing anti-forgery inks, shading is false proof to be that cost is minimum, a kind of preferably anti-counterfeiting technology of antifalse effect.Utilize the security stamp of shading anti-counterfeiting technology more and more now, for example, on April 17th, 2002, notification number was the Chinese utility model patent specification " security stamp " of " CN 2486328Y ", its security stamp is made up of Yin Tuo and seal face, be carved with the literal of projection and the outer rim frame line of projection on the seal face, between the literal of the outer rim frame line of seal face projection and projection, be carved with all false proof crest lines of projection.Its false proof crest line is to be cut out by seal carving machine under computer carves a seal the control of program, so the concrete lines shape of this false proof crest line is at random, the lines shape of the false proof crest line of the seal that different time cuts out can not be identical, imitated person is difficult to carve and the identical seal of seal of putting on record and using, foundation is provided for discriminating person, has reached effective false proof purpose.But, can duplicate various patterns by scanning and machining now, promptly can and duplicate imitated this kind seal by scanning.Along with the progress of science and technology, existing security stamp can not satisfy false proof requirement.

Summary of the invention

The objective of the invention is to: the preparation method that a kind of anti-scanning, the anti-security stamp that duplicates are provided.

The security stamp that the inventive method is made, include Yin Tuo and seal face, literal, pattern and the frame of projection are arranged on the seal face, it is characterized in that, the bossing on the seal face (literal and/or the pattern that comprise projection) is provided with the security pattern of thickness in the characters cut in intaglio lines formation of 0.03-0.15mm.

After adding the characters cut in intaglio line, literal on the seal and/or pattern are opened by the characters cut in intaglio line splitting and are a plurality of zonules.

The method of making security stamp of the present invention is as follows:

1, the seal picture proof is carried out vectorized process, make whole seal content can carry out graphics edition;

2, adopt the false proof software development bouquet of professional money, shading;

3, with the pattern and character of seal location, the false proof decorative pattern that then will the make seal designs surface that is added to becomes it the white lines of 0.03-0.15mm again, and it can be printed off, and reaches the effect of anti-scanning again simultaneously;

4, will make successful seal picture proof and be output into film by laser photocomposing machine, precision is more than or equal to 4000dpi;

5, with the film master by the printing down etching process, be made into the seal of metal quality (copper, steel, gold, silver).

The preparation method of signature card: the false proof decorative pattern of above-mentioned seal surface stack is converted to black lines again, arranges, posting is carried out according to the mode of signature card; add as the identification literal, make file again, be output into transparent film by film setter; the film plastic packaging is protected, and is exactly signature card.

The security stamp of making according to this method is imprinted on pattern on the paper by it, utilizes decorative pattern special-purpose on the signature card, checks the white line that lies in the literal, just can be easy to discern the false from the genuine.

The invention has the beneficial effects as follows: general machine engraving seal carving chapter in the society, be covered with on the seal surface under the situation of meticulous white line, because cutter thickness, angle restriction can not accurately be made this security stamp, prevent the purpose of duplicating thereby reach; And the false proof characters cut in intaglio lines on seal surface adopt false proof software development, can play the effect of anti-scanning, and therefore security stamp of the present invention can't have been guaranteed the authenticity of seal by imitated.

Description of drawings

Fig. 1 is the seal face schematic diagram of security stamp of the present invention.

Fig. 2 is the signature card schematic diagram of security stamp of the present invention.

Fig. 3 is the seal face partial enlarged drawing of security stamp of the present invention shown in Figure 1.

Wherein, Reference numeral: 1 is frame, and 2 is character pattern, and 3 are the characters cut in intaglio line, and 4 is posting.

The specific embodiment

The present invention is further described below in conjunction with drawings and Examples.

Embodiment one, and a kind of security stamp is made according to following steps:

5, with the film master by the printing down etching process, be made into the seal of metal quality (copper, steel, gold, silver);

6, the false proof decorative pattern with the stack of seal surface is converted to black lines again, arranges according to the mode of signature card, and posting is carried out; add as the identification literal, make file again, be output into transparent film by film setter; the film plastic packaging is protected, and is exactly signature card.

The seal seal face of making as shown in figures 1 and 3, has literal, pattern 2 and the frame 1 of projection on the seal face, it is characterized in that, the bossing on the seal face is provided with the security pattern of thickness in characters cut in intaglio lines 3 formations of 0.03-0.15mm.Figure 2 shows that the shape of signature card, middle five-pointed star is the posting 4 of present embodiment.

The processing technology of this seal requires:

1, seal literal, pattern must be vector quantizations, and file can be ai, eps, cdrt isovector form;

2, signature card figure line must adopt the false proof software of money to design and produce, otherwise can't reach false proof purpose.

The technology of a kind of printing down caustic solution of this seal, can adopt publication number is technology described in the Chinese invention patent ublic specification of application method of cemented carbide punching mold " make " of " CN1556249A ".Utilize the metallic hard seal carving chapter figure line of this technology indeformable, sturdy and durable, this printing down corroding metal version technology simultaneously, the seal lines of making can carefully arrive 0.03mm, can make very fine seal figure line, the lines that this kind technology is produced can't be imitated by the lines that mechanical engraving produced.

The principle of the decorative pattern of the false proof software development that the present invention adopts, the anti-scanning of shading is as follows:

Figure just becomes the image of dot matrix after scanner scanning, rather than the figure of vector.And false proof decorative pattern, shading change, arrange the high hachure of precision and form by having trickle thickness.False proof decorative pattern, shading are after overscanning, the faint thickness of its lines changes will loss, necessary color separation when adding output again, just become the site figure after the color separation, register trouble also has very big loss, just differs greatly with former finished product by the output of the thickness of lines after scanning back like this, with the naked eye just can discern easily, so can prevent to duplicate, thereby reach false proof purpose.Cooperate the syntagmatic between the lines, can also make false proof decorative pattern, shading more easy to identify on visual effect.For example make the circular lines gradual change net of one group of anti-scanning, thereby mainly reach visual third dimension, and the image that scans does not reach this effect, embodies its anti-counterfeiting performance by the spacing of concentric circles lines gradual change, the variation of thickness.

By the cooperation of printing down corroding metal version technology and the false proof decorative pattern of money, the present invention can reach and promote the anti-counterfeit of seals means, reaches the purpose that is beneficial to identification simultaneously.

Claims

1. the preparation method of a security stamp is characterized in that, this preparation method comprises the steps:

A, the seal picture proof is carried out vectorized process, make whole seal content can carry out graphics edition;

B, the false proof software development bouquet of the professional money of employing, shading;

C, with the pattern and character of seal location, the false proof decorative pattern that then will the make seal designs surface that is added to becomes it the white lines of 0.03-0.15mm again;

D, will make successful seal picture proof and be output into film by laser photocomposing machine, precision is more than or equal to 4000dpi;

E, with the film master by the printing down etching process, be made into the seal of metal quality.