Paper is printed material base of the various securities, some with special manufacture process is basically the paper.cake anti-fake characteristics, in the traditional Chinese paper.cake anti-fake technology mainly include:
1. ShuiYinZhi
ShuiYinZhi in manufacturing process, the available technology will need identification, such as design of the paper, do these design common situation hard to see to the strong light, only to see, is world security experts recognized as an effective anti-counterfeiting technology, most of the state money, important international document, facility drawings and various ticket also used ShuiYinZhi printing. Watermark was on currency paper except by outside, in other tickets paper also has been widely used. The position in the paper a watermark fixed, not fixed and half fixed several. It together in manufacturing process design and carving mode, making nets, the complex process, so often makes fraud ZuoWeiZhe stranded. YanKan watermark is also identify the most effective means of true or false.
2. Safety
Safety means in papermaking process devastates a gold line or plastic line on paper the middle. The earliest use safety is special gold thread, now USES is plastic line and has developed into a varied, such as tiny letters, fluorescence line etc. Yellow line The shape of the safety line, wavy, serrated, etc.
3. Red blue QianWeiSi or color points
In papermaking process devastates red blue fibers or color small pieces (point) adding pulp, or in the former and finalize the design in paper not in paper surface, uv rays have fluorescence reflection. Blue and red QianWeiSi and coloured points in a fixed position in paper and not fixed position two kinds.
4. The copy paper
This paper copy, will emerge "copy" and "ineffective".frequently, which can effectively prevent color copies and important documents. Another kind of total absorption type prevent copy paper its appearance is blue or reddish brown, paper only through light to be able to see pictures, its photocopy inky blackness.
5. No fluorescence paper.cake
In the ultraviolet irradiation general paper under a significant fluorescent. So ChaoZhi and print some securities or bills without fluorescence is adopted the paper.cake anti-counterfeiting. As countries notes, passport and some negotiable instruments were not paper-based fluorescence, so also easier to show AnJi fluorescence graphic additional.
Second, an album of printing technology
For example polychromatic string printed, polychromatic string printed also called string of color printing or rainbow printing, generally use more printer printing, it is toppan according to print request, in ink slot, then placed clapboard in different in every version of the ink respectively in hue. In string string of ink roll, with adjacent under the action of ink mixing part to the plate on then. Use this printing process, can a printed on a variety of colour, and intermediate intermediate downy. Because it's hard to see from printing ink tank, so the placement of clapboard distance to also can have certain security role. If in large base used on this process, printing the anti-counterfeiting role will be more prominent.
Three, anti-counterfeiting ink
1. Fluorescent uv ink
In under uv light, can send a visible specialty ink.
2. Sunlight inspire discoloration anti-counterfeiting ink
In the sun, can send a visible security printing ink.
Discoloration effect, can from colorless variable violet, blue, yellow wait for color, also can design for changes from nonferrous to colorless.
3. Thermal anti-counterfeiting ink (also called thermochromism anti-counterfeiting ink)
In heating function, can happen. The ink color effect According to the different color temperature, required can be divided into hands warm color ink and high temperature of anti-counterfeiting discolouration anti-counterfeiting ink. According to the differences between them, and color can be divided into the single color reversible, more and more discolouration irreversible discolouration irreversible thermal anti-counterfeiting ink.
4. Reaction discoloration ink
All the chemicals in ink add, with a certain conditions, it can produce all sorts of chemical reaction, thus make ink change color, achieve the purpose of anti-counterfeiting. Thermal anti-counterfeiting ink partially, pressure-sensitive color ink, wet sensitive discoloration belong to color printing ink.
5. Magnetic inks
Is the ferric oxide powder with mixed with magnetic made of special ink printing ink, currently used for printing bank certificates of magnetic coding words and symbols, have the effect of record and store information. With magnetic coding ticket will read the magnetic yards into recognizable authenticity.
6. In addition to alter ink
If in the corresponding parts alter, can appear a password. The ink is mainly used for printing checks, drafts and documents, if someone in such securities on draft amount altered or eliminate digital original digital, would immediately appear "void," the words.
Four, bar code anti-counterfeiting technology
Commodity code is a code of commodity, is human to computer commodities such as the effective management and design. If we can reasonably use the commodity technologies, including the carrier of reasonable selection of barcode printing, a reasonable choice of methods and the reasonable selection of printing machines, printing position etc, then they may make commodity bar code technology has the anti-counterfeiting role.
Two dimensional barcode because more information through computer and inkjet printer, the processing, strong graphs. And manasseh, through the application of calibration, a formula computing in successive number with a specific number of behind, also can have security role.
Five, the code and telephone anti-counterfeit marking identification system
Code and telephone recognition system anti-counterfeit marking, in every product is through setting on a random password, all products are all record purpose in net anti-fake data ZhongXinKu, let consumer use telephones, computers, check the password correctness of tools to identify products authenticity. The anti-counterfeiting technology implementation in the same physical, realize high anti-counterfeiting purpose.
Six, edition grain design anti-counterfeiting
Version grain design, also called cherry design, twist cable adorn design, the background background design.
This is the most ancient, lasted for one of the oldest anti-counterfeiting technology. In what we are familiar with money, passport, check all visible to the background graphic.
The current safety graphic design system, combining with the computer technology, can according to user own style design, designed with distinctive personalized feature complete design background and related words, such as cherry, micrographics, prevent, miniaturized, prevent copying pictures and scanning graphic, high-relief etc. These graphic adopts line design, special color printing, which can effectively prevent electric points, photographic such traditional means of color printing and after reproduction of color photocopy and rise obvious security role. This is driven by the profits of criminals do not like, so the security graphic design is still widely used in cash, cheques, national important documents, securities in making.
