Six, seal anti-counterfeiting technology

Since the State Council has provisions on the shape, size, and printed characters and designs of our official seals, some anti-counterfeit measures for our country's seals are basically based on some microcosmic changes that do not change the above provisions.

1. Image security on the stamp

(1) Microscopically changing certain features of standard fonts or reorganizing handwritten seal fonts to create a special laser engraving font for seals.

(2) Under the premise of not changing the existing regulations of seals and texts, re-design parameters such as literals, edges, etc., and change the details such as character height, pitch, inclination, aspect ratio, and pen width.

(3) Adjust the edges of the five-pointed star to change or strictly specify its position, shape, and relative position between the texts. Create a random anti-counterfeit curve, characteristic pattern, shadow or fingerprint on the pentagram.

(4) Adding random points and moire, setting gaps, shadows, and codes on the ring at random or by the position of the dial on the hour hand.

(5) Adding an integrated or separate invisible code, bar code, shadow, and even fingerprint and graphic password. Invisible images need to be visualized and interpreted under ultraviolet light. The above-mentioned engraving features should have a precision of 1 wire. After programming, it can be managed by computer and automatically recognized.

2. Comprehensive serial security seal

The seal issued by the Yinchuan New Seal Factory basically does not change the prescribed official seal pattern, but in the less than 2mm wide chapter circle, the chapter's address, telephone number, registration with the Bureau of Industry and Commerce, and even Zhangren’s Codes and other information, and make it appear with the seal of the invisible visual text, for the recipient to verify the authenticity of the phone or Web query system. Since the information on the chapter circle can be checked face to face, this chapter is not afraid of copying, imitation after the system did not dare to use, such as the use of self-throwing network. Once the problem has occurred, the person responsible can also be traced.

3. Printing ink and ink pad anti-counterfeiting technology

The main application is fluorescence anti-counterfeiting ink and ink pad (see ink anti-counterfeiting). Among them, there are color and colorless, the former may have three colors of red, blue and black depending on the colorant added. The latter does not contain coloring material, so the color is not visible to the naked eye or slightly milky, so it is only used for invisible signs. Both need to be observed under ultraviolet light.

4. Seal of the card and computer management

After the seal is made, it is equipped with a card. The card contains all the graphic information of the seal, such as the name of the official seal, the examination and approval unit, the name of the legal person, the address of the unit, telephone, fax, seal and password for automatic comparison. When using a stamped securities, you must use the card that matches the official seal (the “identity card” of the official seal) and enter the password so that the financial department can check it with a computer before conducting business activities. It is also possible to store the seals in the computer seal database of the relevant business department without the use of a card, and they can be networked in a local area or across the country. Sealed computer automatic identification system and corresponding software have been developed and marketed by a number of companies. Yunnan Seal Company launched the seal anti-counterfeiting network management system, from the approval of the seal to production, identification, and inquiry all managed by the computer. If the network is built, local or local telephone voice inquiry and report loss can be accepted.

Seven, biological anti-counterfeiting technology

A practical technique for anti-counterfeiting is the use of the characteristics of anatomy, physiology, biochemistry, and even pathology inherent in living things. It is mainly used for individual identification of organisms (mainly humans) and can also be used to identify the authenticity of items. The former has been used to identify individuals in departments such as customs, safe passage, and finance; it is also used for door opening, unlocking, and booting. Because the biological features extracted by the biological anti-counterfeiting technology are unique to the organism and cannot be counterfeited for a long period of time, it is favored.
Commonly used biological anti-counterfeiting technologies include: human fingerprints, palm prints, hand shapes, fingers, retinal blood vessel maps, eye iris maps, hand vein maps, facial features, voiceprints, and biological odors, biological DNA (deoxyribonucleic acid) ), anti-counterfeiting technology of immunology and signature detection methods, etc. Among them, human fingerprints and palm prints can also be used for anti-counterfeiting such as badges, logos and seals. Biological DNA can be used for ink, ink, ink, beverage anti-counterfeiting, and can also be used for a variety of anti-counterfeiting labels. It is reported that the Sydney 2000 Olympic Games Organizing Committee in Australia decided to extract the DNA samples from the oral mucosal epithelial cells of famous athletes, cut out a specific piece of them, copy a large number of its genetic code, protect it with protein, and mix it with dyes. Dye-dyed fabrics were used to make anti-counterfeiting of commercial logos and labels for the 2000 Olympic Games. During the inspection, a special scanner is used to read the DNA code to distinguish the authenticity from the authenticity.

Eight, structural anti-counterfeiting technology

In the design and manufacture of products using a special concept design, so that the product reaches fidelity. Among them are mechanical anti-counterfeiting technologies and packaging anti-counterfeiting technologies.

1. Outer packaging anti-counterfeiting technology uses exquisite special paper or plastic materials, and is processed into special-shaped packaging boxes through special processes, making it difficult for others to copy. Common paper materials on the market today include gold foil paper, embossed paper, embossed paper, and matte paper.

One-time anti-counterfeit seal identification (such as hologram, micro-printing, fluorescent characters, password, etc.), pull wire, lacquer, lead seal, and anti-counterfeiting sealing tape can be used for sealing.

2. Inner packaging Anti-counterfeiting technology The inner packaging can be made of unique materials, shapes, colors and hidden marks. The sealing technology is basically the same as the outer packaging. Wine and Beverage Containers In order to prevent genuine bottled fakes, there have been various disposable anti-counterfeiting bottle caps and anti-irrigation bottle caps that cannot only enter.

3. Plastic sealing anti-counterfeiting technology adds fluorescent, thermal and other anti-counterfeiting materials to plastic films, or prints laser holograms on them; it is also possible to print various anti-counterfeiting designs after applying adhesives. Plastic film. It is commonly used to seal documents, passports, credit cards and documents, etc. It can prevent alteration or forgery. This plastic can not be opened at room temperature, such as forced open, the film is torn, the plastic object also destroyed. Plastic can also be used to seal the bottle mouth.

4. Inkjet anti-counterfeiting technology uses a printer to spray a code or a production date on the seal of an inner, outer package, logo, sign, or container. There are two kinds of bright and dark codes, which are clearly visible to the naked eye; the codes can only appear under ultraviolet light.

to sum up

The fifth (1999 version) of RMB vouchers issued nationwide on October 1, 1999 in China adopted ten anti-counterfeiting technologies, some of which are the most advanced in the world today, such as: OVI printing features, Magnetic micro-printing security thread, Latent image for the face value, Red and blue color fibers, Offset micro-printing, and Horizontal and vertical dual-number and previously used See-through feature Fixed portrait watermark, Hand-engraved portrait, Engraving intaglio Printing (Intaglio printing), etc.