Packaging common information security printing

Because the corner block combination in the hologram is randomly encoded, even if the same device is difficult to produce exactly the same holographic master, rainbow hologram images have been widely used in the production of anti-counterfeiting labels. Holograms can also be directly transferred to paper products and are now widely used in tickets, trademarks and credit cards.
Laser embossed holographic anti-counterfeiting labels have a single rainbow, a variety of rainbow colors, true colors, and black and white (achromatic) colors. The images are two-dimensional, three-dimensional, multiplex, and dynamic imaging.
According to different laser holographic anti-counterfeiting identification hologram imaging technology, it can be divided into classical, pulsed three-dimensional laser molded holographic anti-counterfeit labels and composite molding, multiple image laser molding, dynamic molding, dynamic grating molding, invisible holographic molding, anti-counterfeiting ink encryption laser Molded and other holographic anti-counterfeiting labels.
Rainbow holographic paper after a certain process, the plastic film (BOPP, PET) on the embossed hologram completely transferred to the paper base on the formation of a rainbow holographic paper. Rainbow holographic paper is very suitable for high-grade packaging boxes for cigarettes, wine, and medicines.
The computer laser hologram pattern divides the laser with good correlation emitted from the laser into two beams with the same wavelength. One beam is reflected on the object to be rescued and is called the object light; the other beam is reflected by the plane mirror and becomes the reference light. The point of view shoots towards the film, where it meets with the object light and interferes.
The light and dark interference fringes recorded on the film can give a hologram that records the intensity and phase of the lightwaves of the object. The hologram is then irradiated with the original reference beam, and the original object beam can be restored due to the diffraction effect of light; therefore, a realistic stereoscopic image of the object can be seen through the hologram, and the interference and hologram of the light can be described by a mathematical model. The formation of the hologram can be calculated by computer sampling.
The use of such a computer hologram to design printed graphics is very difficult due to the fineness of up to 1000 lines per millimeter and randomness.