Laser anti-counterfeiting is also known as laser anti-counterfeiting. Laser anti-counterfeiting technology includes laser holographic image anti-counterfeiting marks, encrypted laser holographic image anti-counterfeiting marks and laser

lithography anti-counterfeiting technology.

Holographic anti-counterfeiting technology includes conventional holographic anti-counterfeiting technology, multi-channel holographic anti-counterfeiting technology, invisible encryption technology, 360° computer dot matrix holographic technology, double-layer holographic technology, fluorescent encryption holographic technology, dynamic coding anti-counterfeiting technology, telephone Electronic code anti-counterfeiting technology, nuclear micropore anti-counterfeiting technology and genetic anti-counterfeiting technology, and have the characteristics of clear images, brilliant colors, strong three-dimensional effect and one-time use. When the multi-channel holographic anti-counterfeiting logo is rotated, you will see different patterns appearing at the same position of the logo. Invisible encryption technology creates an encryption pattern at any position of the logo, and the encryption pattern can be seen under the laser reproducer. The 360° computer dot matrix holography technology will produce a combination and transformation of radial, ring-shaped, spiral-shaped light points within the 360° observation range of the image, which is extremely dynamic. The double-layer holographic technology can reveal the holographic logo, and you can also see the second anti-counterfeiting layer printed with patterns and text, which has a double insurance anti-counterfeiting effect. The principle of fluorescence encryption holographic technology is the same as that of RMB fluorescence encryption. Dynamic coding anti-counterfeiting is to place the trademark in front of your eyes, and slowly rotate the trademark to produce a pattern of continuous movements. The telephone code anti-counterfeiting mark is made by combining laser anti-counterfeiting technology and telephone code anti-counterfeiting technology. The authenticity can be verified by querying the unified central database. The nuclear micropore anti-counterfeiting mark is composed of laser anti-counterfeiting technology and nuclear micropore anti-counterfeiting technology. Authenticity can be distinguished with just a pen. Genetic anti-counterfeiting is to add genetic factors to the label backing glue and detect it through special instruments.

The most commonly used anti-counterfeiting technology is laser rainbow molded holographic graphics and text, which is a kind of visual graphic information produced on products by applying laser rainbow hologram plate making technology and molding replication technology. Rainbow holographic images are rainbow holographic photos that use universal holographic images as the shooting object and are processed through a series of procedures. For example, a photosensitive film of photoresist is used to replace the hologram taken by ordinary photos. After exposure processing, a relief phase hologram is obtained, which is the master for making a rainbow hologram. The surface of the master plate is filled with uneven interference fringes, the fineness of which can reach more than a thousand per millimeter. These relief-like stripes record the light wave intensity and phase information of the photographed object, achieving holographic recording. Then use vacuum coating or chemical plating method to plate a very thin metal film on the surface of the master, and then electroplating nickel or other metals of appropriate thickness to make a molded metal plate with good mechanical properties. Mount this board on an imprinting machine, hot-press the polyester plastic film, imprint the relief hologram on the film, and finally vacuum evaporate a layer of aluminum film on the film to increase the reflectivity of the film. After the aluminum film is plated or coated with a protective layer, a holographic image is made, that is, an opaque laser-molded holographic anti-counterfeiting image. This kind of hologram can be observed by sunlight. Each wavelength of light in the sunlight will be diffracted by the interference fringes on the picture. Because of the different diffraction angles, the reproduced image will have different colors when viewed at different angles. Laser anti-counterfeiting technology makes baccarat chips unique, safer and immune to counterfeiting.