Classification of special anti-counterfeiting technologies

Special technologies include new physical and chemical materials and new technologies.

Nuclear technology

Such as China's nuclear track anti-counterfeiting technology, heavy ion micropore anti-counterfeiting, Russia's nuclear film, etc., they are unique new anti-counterfeiting technology, have a very high security performance, and its identification method is simple, suitable for first-line, second-line anti-counterfeiting, They have several common disadvantages:

1, security signs can be reused.

2. Although heavy ion accelerators or nuclear reactors are strictly controlled by the state, counterfeit groups may also obtain nuclear radiation materials.

3. The nuclear pore membrane material is relatively abundant, and some techniques can also obtain a nuclear pore membrane with a specific distribution pattern.

4. The nuclear pore membrane is actually a kind of microporous membrane, and similar micropores may be obtained by using certain chemical methods. In addition, the nuclear track anti-counterfeiting technology performs image matching when it is identified, that is, it needs to find thousands in a large map. When one sub-size sub-picture is in the speed problem, although someone has proposed a better search algorithm, the matching speed still needs to be improved.