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Color high-speed inkjet printers began to emerge in 2000, and by 2007, as more suppliers and more diverse devices entered the market, high-speed inkjet printing has grown rapidly. It is expected that by 2015, color high-speed inkjet printing will occupy 40% of the color digital printing market, becoming a fast-growing technology field in the printing industry. The quality and cost advantages brought about by technological advances are only part of the reason for the rapid growth of color high-speed inkjet printing. The degree of matching between printing applications and equipment performance will be the key factor for color high-speed inkjet printers to meet order demand and ensure corporate profit growth, and thus win the market. At Drupa 2012, a number of printing equipment suppliers have researched or cooperated to launch high-speed inkjet printers. The printing format is getting larger and larger, the quality is getting higher and higher, and the cost is getting lower and lower, making high-speed inkjet printing industry. Overall attention!
Inkjet printing can be divided into continuous inkjet and drop-on-demand inkjet according to the inkjet principle.
1. Continuous jet type CIJContinuouslnkJet
The principle of continuous jetting is to apply a high-frequency oscillating pressure to the ink to eject the ink from the nozzle to form a uniform continuous stream of droplets. An electric field that changes in synchronism with the pattern photoelectric conversion signal is provided at the nozzle. The ejected droplets are selectively charged in the charging electric field. When the droplet stream continues to pass through the deflecting electric field, the charged droplets are deflected by the electric field, and the uncharged droplets continue to maintain a straight flight state. Drops flying in a straight line cannot reach the substrate and are recovered by the liquid trap. The charged droplets are ejected onto the substrate to complete the printing.
2. On-demand jet DODDropOnDemand
The working principle of the on-demand jet printing system is that when printing is required, the system applies high-frequency mechanical force and electromagnetic thermal shock to the ink in the nozzle, so that tiny droplets are formed to be ejected from the nozzle, and the jet is controlled by the computer. Set the pattern. On-demand jet application is widely used in thermal inkjet technology, which relies on thermal pulsation to generate ink droplets. A heating resistor wire is controlled by a computer to a predetermined temperature, so that the ink is aerosolized and ejected from the nozzle.
Another DOD technology is a voltage injection system in which a potential is imposed on a conductive material by a computer to cause a conductive material to compress in the direction of the electric field and expand in a vertical direction to eject the ink. Inkjet printing requires not only high-precision nozzle technology, high-precision control technology, but also high-purity, high-concentration, high-fastness, high-stability ink (ink) to match it.
Forecast: Color high-speed inkjet printing will account for 40% of the market in 2015
According to InfoTrends, in 2006, there were only 20 color high-speed inkjet printers in use worldwide, and in 2010 more than 200. It is estimated that by the end of 2013, more than 500 color high-speed inkjet printers will be put into use. Color high-speed inkjet printers equipped with paper feeders have created new market opportunities due to their productivity, operating costs and print quality.