Anti-counterfeiting technology for printed materials. Anti-counterfeiting technology using printed materials and new processes plays a very important role in the printing process. The various fluorescent inks we have contacted with have been widely used in the country since the early 1990s, and production companies are also competing to apply them. They have indeed achieved a certain anti-counterfeiting effect, and then some new fluorescent materials have been used in currency. It has also promoted the development of anti-counterfeiting printing materials, and the application of many new materials such as ultraviolet light, infrared light, and photo-induced materials, so that anti-counterfeiting inks and other materials continue to play the anti-counterfeiting function.
With the extensive development of printing consumables, the technological progress of UV technology and many chemical materials, including the development of nano-scale materials, anti-counterfeiting materials used in inks and other consumables will also have relatively large development space in the future, but the main link is still There are two guarantees, namely the flexibility of application and the convenience of testing.
Shading anti-counterfeiting
Application of anti-counterfeiting technology in printing plate design. Shading anti-counterfeiting is a kind of anti-counterfeiting printing technology with the lowest cost and good anti-counterfeiting effect.
Main features of shading anti-counterfeiting
The use of lines for anti-counterfeiting can produce rich changes. The anti-counterfeiting design is completed in the plate-making process and realized in printing. You can also use shading anti-counterfeiting production software to realize various anti-counterfeiting applications such as refractive index and latent image based on the principles of various technologies such as optics, spectral technology, and printing technology. Shading or other anti-counterfeiting elements will not affect the overall design style of the printed matter, because anti-counterfeiting elements such as danhua, latent images, and microtext are generally applied locally and do not affect the overall style of the design. Usually the color of shading is relatively light, which will not affect the aesthetic effect. The depth of the color can be set considering the difference in color resolution between the human eye and the scanner's application optics, so that the scanner cannot scan, and the human eye can distinguish.
Effects such as embossing, refracting light, and lace have been added to the designer—a new design element, combined with traditional design can provide better design ideas, play a beautiful, eye-catching, easy to understand, and highlight anti-counterfeiting effect. The commonly used anti-counterfeiting shading elements in printing include: ball flower, curve relief, image relief, lace, latent image, microtext, shading, variable line width, curve simulation image, refraction, and graphic filtering. Security shading anti-counterfeiting can be understood as two aspects:
â‘ Prevent counterfeiting
On the one hand, it is very difficult for copycats to produce similar effects with the common software for the printed copies. On the other hand, it is difficult to copy even if the same software is used.
For example, the lines used by the Peking University Founder Super Line Safety Shading Design System are sinusoidal lines, and it is difficult to draw the sinusoidal lines with general software. The provided tufts, curve reliefs, laces, image reliefs, lines and curves with varying thickness Simulated images, etc. are very random in production, and even if they are copied using the same software, it is difficult to make them exactly.
The functions of image relief and curve simulation image, on the finished product: express the image effect described by the line, if there is no original dot matrix image, it is impossible to make the same effect, and it is impossible to scan it.
â‘¡Anti-scan
Even modern ultra-high-precision (optical resolution above 5000dpi) scanners or photo plates can not reproduce the lines of the plate patterns to prevent scanning. The factory-designed safety shading design itself has anti-scanning function. The reason is very simple. The scan must generate images with dots, and the safety shading is composed of lines, so it cannot be scanned.
The application of anti-counterfeiting shading design is an effective way to increase the added value of products, and for printing companies, it can also expand some special printing businesses. In the printing industry, high-profit special printing uses security shading technology extensively and applies it to each product (check, tax receipt, passbook, passport, certificate, etc.).
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