Why the CTP of the violet laser source can attract so many users

Since May 2000, Ziguang's laser pointer source has officially been introduced to the market. It has always been considered that the most advanced thermal light source in CTP equipment is subjected to severe challenges. Many users have found that this new light source has many advantages from a practical point of view. With the adoption of this new technology, in the end, why is the violet laser winning the favor of so many users? The following are some technical analysis.
The so-called violet light source is a kind of laser that adopts 400nm spectrum, and the shorter the physical characteristic light spectrum, the greater its energy, so the purple light source is relatively common to other CTP light sources such as green (532nm), red (830 or 1064nm), etc. can have a higher imaging speed, the principle of which is that the laser can stay on the plate for a shorter time and can provide enough energy to stimulate the reaction of the plate film. Using this feature, equipment manufacturers can increase the scanning speed. For example, the current infrared laser scanning speed is 20,000 lines/minute, the green laser scanning speed is 37,000 lines/minute, and the violet laser scanning speed can Up to 55,000 lines per minute, which is equivalent to a 1,024×800 mm scan of the split plate at 24,000 dpi within 1 minute and 46 seconds (other operating hours are not included).
The higher accuracy is also due to the physical characteristics. The shorter the spectrum is, the smaller the laser spot is, so it is allowed to scan more fine dots on the plate. The previous light source can only be used on the photosensitive plate. The performance of 200 lpi (1-99%) dots, and the use of violet laser can increase the accuracy to 250lpi.
More convenient operating environment Since the digital plate used with the violet laser is not effective for both red and green light, the violet laser CTP device can use a yellow safety light (red light + green light = yellow light). To provide the operator with a brighter darkroom environment, making the operation more convenient.
Longer Life and Cheaper Costs Although the laser manufacturer's warranty period for the violet laser is the same as that of the conventional green laser, it is also 3,000 hours. However, since the operation of the violet laser is laser, it only needs to be actually imaged. When it is started, the rest of the time will not lose the life of the laser. As for other lasers, the operating mode is that the laser is started at the same time after the machine is turned on, causing unnecessary loss to the laser. Therefore, the actual life of the violet laser is longer than that of other CTP laser sources. At the same time, since similar lasers are also widely used in other industries (such as commonly used DVD players), the amount of users can be mass-produced to reduce costs. This makes the price of this light source lower than other CTP laser sources.
With the above features introduced, it is not difficult to understand why violet laser technology can shake thermal technology. In fact, CTP technology is still developing rapidly. It is believed that new technologies will continue to be introduced in the market. However, in the long term, Manufacturers have realized that the ultimate development of the thermal technology is near-free flushing technology, which can further reduce one process to make the production effect more stable, and more importantly, it can avoid the manufacture of syrup waste to meet the environmental protection needs. However, in the short to medium term, except for Agile's Galileo Talant thermal platesetter, which has a flush-free thermal function on the market, other manufacturers' so-called thermal products still require a flushing process, failing to achieve thermal sensitivity. best effect. If there is a slight victory (but it is only the difference between 禺250 lpi and 300 lpi), other aspects do not necessarily have any advantage. On the contrary, the above-mentioned no-clean thermal technology is 40% higher than the photosensitive product in terms of equipment and materials. At present, most users are not willing to invest in the most advanced technology in one step. Therefore, from the point of view of the current shirt, if the production requirements of India's print rate is within 250,000 prints, the accuracy is lower than 250lpi, users will believe that the laser is an ideal choice.