Application of Laser Hot Stamping Technology in Tobacco Packaging

Laser holographic non-positioning hot stamping technology:

The holograms are transferred onto a cigarette pack by continuously bronzing or a special edition of a laser holographic aluminum bronzing process. The special version of laser holographic aluminum is used to make customized corporate information in the hologram, which can play a good anti-counterfeiting effect. The hologram on the hot stamping material does not need to be aligned with the hot stamping contact head, and is relatively easy to implement. The process is relatively simple and the cost is low.

Laser holographic positioning hot stamping technology:

In a fully automatic highly-positioned hot stamping device, the hologram of a specific portion of the holographic anti-counterfeit hot stamping film is accurately stamped on the designated position of the cigarette mark by photoelectric recognition.

Positioning hot stamping is more difficult: 1. Need special stamping equipment; 2. The hot stamping film production requirements are high, we must strictly control the molding process, the accuracy of the strip and winding tightness, positioning accuracy can not be less than positive Negative 0.2mm; 3. The recording medium is required to record a hologram with a high resolution, usually to be able to reach 300 lines/mm or more; 4. In the hot stamping process, the imaging layer of the hologram hot stamping film is required to be able to maintain this high-resolution laser The hologram's information is not lost (ie it maintains the sharpness of the high-density fine stripes).

Transparent holographic hot stamping technology:

Traditional holographic products generally use aluminum plating to increase the holographic diffraction effect and are opaque. The transparent holographic product is continuously vapor-depositing a high-refractive-index transparent medium material on one side of the plastic film molded hologram, and the hologram reproduction angle is exactly equal to the total reflection angle formed by the two mediums. Since the plastic film and the dielectric film are all transparent, this is a truly "transparent" laser holographic film. In addition, the reproduction of the hologram skillfully uses the total reflection generated when the light enters the photoclear medium from the optically dense medium, and thus the reproduced hologram is still brilliant and bright. Application: There are more transparent holographic transfer (such as the Red Great Hall of the People, Hongwu Niu, etc.) and transparent hot stamping technology (such as the Changbai Mountain brand cigarettes).

Hot post-printing technology:

The general bronzing is performed after the printing is finished, and the hot post-printing technique is to print before printing, and then print on the hologram of the hot stamping to realize the combination of holography and printing to achieve the visual effect brought by 2D/3D. .

Holographic cold film technology:

Cold foiling is relative to hot foil stamping. It is a method of transferring hot foil foil to printing materials using glue. No hot template or hot roll is used during the entire transfer process, which has the advantages of high speed and high efficiency. In the past 5-10 years, only a few companies have applied this technology to business. In recent years, this technology has been used on a small number of cigarette packets in China, such as Nanjing cigarettes.