Laser engraving technology for security seals

Chop security should consider two aspects: First, the seal can not be forged; Second, the printed text of the differential can be. Forged needed to be resolved from the seal materials, production technology, production facilities, proceed (otherwise strengthen management on the topic) and the printed text should be able to identify problems Yiyou, image recognition, such as the archives of the establishment of a chop efforts. Laser technology, and computer technology is the forefront of modern science and technology. The birth of these two technologies, immediately aroused the printing industry revolution. Laser Phototypesetting replace several hundred years of print. Type layout almost extinct in China. Phototypesetting inspired by the laser, these two technologies will soon introduce seal manufacturing and security areas. Computer typesetting greatly improving the seal level and the production of speed, and laser engraving has been successfully replace the plate dies, cutting tools and manual methods of electro-optical tracking, and experts from relevant departments of the general concern. Monochrome laser, high brightness, directional good advantage, are widely used in materials processing, such as laser heat treatment, cutting, welding, marking, etc.. On such occasions, laser used as an intangible "tool" role in the material, the material melting, vaporization, a variety of process. Advanced industrial countries are included in the laser processing and advanced manufacturing technology to promote. Laser engraving is the principle: a laser beam through optical transmission and agencies focused on the material surface, the density of high-energy laser beam at the role of the rapid vaporization, a pit points. Xy use of computer-controlled laser driven console first mobile laser control and in accordance with the requirements of the switch, the software processed by the image information has been stored in computers in one way or another, when a sequential read information from the computer, the laser head on along From left to right trajectory to scan back and forth from top to bottom progressive scanning. When scanning to a "1" point, the open laser scanning to a "0" point, the laser shutdown. We know that the information is stored on the computer's binary, which coincided with two state laser switch line. Currently popular seal publishing software can be used for a little of the laser scanning workstations, computers and other components dedicated to laser engraving equipment. Due to the equipment YAG laser and CO2 are generally two. YAG for marking metal, it is not easy achieve the desired depth. This can not be used in the seal carving. The CO2 laser engraving for non-metallic materials. On the seal, rubber, horns, plexiglass, marble, jade, ink pad save, timber, etc. may Creation achieve better depth and accuracy. CO2 laser power option 1-20 watts. Creation of a Chapter 3-5 minutes, official seals 15-30 minutes. At present, the laser equipment condenser point less than 0.1 mm. Mechanical repetition resolution 0.025 mm positioning accuracy of 0.1 mm. Creation of the chop chop in full compliance with industry standards. Why can laser engraving security? First, the process method is not forged, very difficult hand to imitate; Second, it is easy to computer typesetting many security measures reflected laser engraving. This is different from other methods of the greatest advantages. For example, the Creation bar code, code, Anji not repeat the lattice, graphics, patterns, etc.; Third, it is easy to computer filing, the establishment of the archives of the seal, easily printed text and image recognition through computer archives in the sample comparison, the differential. China is a big country chops. Seal should take two steps: security: current management should be strengthened as much as possible some of the initial use of the existing security measures. At the same time, we must vigorously strengthen seals in the high-tech industry applications. Through in-depth investigations, investigations and technological breakthroughs, the seal on a set of practical standards, seal process, seal materials and seal equipment, the establishment of identification and management of network systems. Form a national unified professional systems.