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Print Encyclopedia: Ctp Platesetter Working Principle by big tree
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Print Encyclopedia: Ctp Platesetter Working Principle |
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Business,Business News,Business Opportunities
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CTP To plate Machine by the precise and complex optical systems, electrical systems and mechanical systems constitute the three most.
Generated by a single laser beam source laser, optical fiber by multiple or complex high-speed rotating beam splitting optical system to split into multiple beams (usually 200-500 bundle) very fine laser beam respectively, each beam of light by sound modulators of information by computer image characteristics such as light and dark, the laser beam to be modulated changes in light and dark, into a controlled beam. The focus then after a few hundred micro-laser beam directly reach all parts of the surface plate engraved version of the work, scanning through the stereotype, the image formed in the printed version of the latent image. After imaging, the computer screen image information to restore the altar in the plate Offset Direct Print . Each beam micro-laser beam diameter and shape of the beam intensity distribution, decided to form images in the printed version of the latent image clarity and resolution. Smaller micro-beam spot, beam intensity distribution more nearly rectangular (ideal situation), then the higher potential as the definition. Scanning depends on the accuracy of the mechanical system and Electronic Control section. While the number of laser micro-beam scanning the length of the decision. The more the number of micro-beam, the etching time for a shorter printed version. At present, the beam diameter has grown to 4.6 microns, equivalent to etching a 600lpi printing accuracy. The number of beams up to 500. The loss of a printed version of the time off can be completed in 3 minutes. On the other hand, version of the output beam power and energy density (per unit area produced by laser energy, in units of J / sq cm) higher, while the faster etching rate. But also have a high power laser to shorten the working life and reduce the distribution of the beam quality of a negative impact.
Platesetter Sources include: gas lasers (argon ion laser 488nm, power: 20mw or so); solid-state laser (FDYAG532nm, 100mw and above); semiconductor laser (LD, semiconductor lasers in the infrared diode laser with low-power, long life advantages.)
-To-plate system is a comprehensive multi-disciplinary technology industry, which includes the precision machinery and optical technology, electronic technology, color digital image technology, computer and software technology, new plates and material technology, automation technology and Network Technology in one automated production system, the printing industry is another major contemporary technological revolution.
CTP Systems Requirements
Using the CTP system, first of all, pay attention to the interface with the front-end systems technology, namely: color prepress processing system for data exchange between the technology and back-end equipment, data and techniques of the perfect. Large-capacity files, the data exchange speed and data transfer speed is essential; Second, the required enterprises to establish a new set of electronic documents Management System, improving data storage and retrieval technology; then, on the RIP color management techniques and technology requirements are also important. Documentation requirements for large capacity RIP has a strong capacity, we can achieve high productivity. Consistency for proofing and output problems, need to Intervention in color management technology. I am China Manufacturers writer, reports some information about round beveled mirror , trumeau mirror.
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