The most interesting thing about the drupa show that just ended is the sudden emergence of inkjet printing. The number of equipment and technological innovations exhibited by inkjet printing have greatly surpassed other types of printing equipment. In other words, inkjet technology occupies a dominant position in this drupa. There is no doubt that inkjet printing is one of the most attractive themes of Drupa this year. The new inkjet printing system shows great potential for wide application in printing production. Advantages Quality and speed At least 8 new web inkjet printers will be exhibited at the drupa. From this point of view, inkjet printing has been recognized as a color printing production technology by the printing industry. As the most competitive digital printing technology, electrophotography has the advantage of being suitable for a wide range of applications. However, digital printing is limited by speed, and it just happens that inkjet printing has its significant advantages in speed. At the exhibition, Fujifilm and Japan Screen Co., Ltd. both exhibited a new sheet-fed inkjet printer with a size of 50 cm x 70 cm, and the printing quality reached the level of offset printing. Kodak introduced the Stream to Roll Stream 4 color inkjet concept machine, which has the same printing quality as 70-line dot offset printing. Hewlett-Packard also exhibited the HP web inkjet machine, with a paper roll width of 76.2cm, a printing speed of 122 meters / minute, and a production efficiency of 2440A4 pages per minute. Hewlett-Packard's drupa newspaper printed on a web inkjet machine caused a sensation at the show. Although all the above inkjet printing systems will be available at least two years later, it is worth introducing the performance of these inkjet printers. 1. HP: Web Inkjet System The system can print 4 colors on both sides, with a resolution of 600 × 600dpi and a paper tape width of 72.6 cm. The printing speed reaches 122 meters per minute, and the monthly output can reach 70 million pages. It can print transaction bills, direct mail advertisements, newspapers and books. The system uses HP color inks and adhesives that are used each time ink is ejected. Therefore, the best quality and wear resistance of the image can be achieved on the porous paper, and the color gloss can be improved and the through printing of the thin paper can be reduced. The on-demand thermal print head prints on both sides of the entire tape width at one time. To show how the print heads are arranged, HP exhibited a web inkjet machine with a width of 91.4 cm at Drupa. It is reported that from the autumn of 2009, inkjet systems with a width of 76.2 cm can be supplied at a price of about 2.5 million US dollars. According to Hewlett-Packard, a color page costs 1 cent, and a black and white page costs only 0.15 cent. 2. Fujifilm: JETPRESS 720 inkjet machine Fujifilm introduced a prototype of single-sheet paper inkjet printing. The size of the machine is 72 cm x 52 cm. It prints 2700 sheets per hour, 180A4 pages per minute, or 10800A4 pages per hour. This machine is used for front printing, so it is necessary to use a stacking table when it is used for reverse printing. The 72 cm wide printhead is manufactured by the Dimatix subsidiary and uses piezoelectric nozzles to print water-based color ink on paper. Through the 1200dpi physical resolution of the nozzle and three different sizes of ink droplets, the best picture quality can be achieved. Unlike offset printing, the printed images and text are different. Therefore, the JetPress 720 can be used as a supplement for offset printing plants. The use of variable data printing plants can expand the scope of its production business and can print short-form jobs of less than 2000 sheets. It is reported that the aircraft will go on sale from next summer, with a price of about 1 million US dollars. 3. Screen company: TRUEPRESSJET SX inkjet machine The machine is a 53-cm x 74-cm 4-color sheet-fed inkjet system. The Epson print head with a width of 52 cm is used to print on the front side in a vertical feed. The resolution of the nozzle is 1440 × 720dpi, using water-based pigment ink to print 1600 sheets per hour, equivalent to 6400A4 pages or 106A4 pages per minute. Allegedly, the printed sheet is dried immediately after printing on the front side, and can be printed on the reverse side. In the two passes, the first printed sheet has reached the correct ink color, so there will be no waste paper for printing. The aircraft will be available in the summer of 2009, the price has not yet been determined. [next] Application Mixed printing and bill printing The traditional view is that inkjet printing is not very suitable. Even now many printing companies believe that inkjet printing only occupies the market in two application areas: large format printing and low resolution address printing. However, there are two other newly developed application areas that have attracted considerable attention from printing houses. Hybrid printing brings flexibility to newspapers The first application is the combination of inkjet and offset printing, which can be called hybrid printing. For this purpose, the inkjet print head can be installed on an offset or flexo printing machine. Therefore, printing plants can print variable content on traditional analog printers. Inkjet technology brings the required speed and resolution, so that when a traditional printing machine prints variable content, it is not necessary to reduce the speed of the machine. This method is most suitable for direct mail, forms and lottery printing. At this drupa exhibition, the combination of inkjet and offset printing technology was demonstrated. The content of inkjet printing changed 100%, and its quality was no different from that of offset printing. To this end, the application of mixed printing enters a whole new space. It is reported that Kodak recently cooperated with Manroland to integrate Kodak's inkjet head on the offset newspaper rotary. This innovation has brought new possibilities to the newspaper media, and has made many contemporary people feel that old and inflexible newspapers have gained new vitality. The flexibility of adding variable data to newspapers provides opportunities for newspapers and media owners. Printing plants can protect existing equipment investment through hybrid printing, which can extend their press life and application range. Trade bill printing shows brand characteristics The second important trend is of great interest to computing centers and transaction bill printing service providers: inkjet technology replaces the method of reprinting on previously pre-printed color prints, thus providing an economic possibility, that is, all The content can be printed on unprinted paper in real time in one process. Therefore, pre-printed paper inventory is eliminated. In addition, there is no longer the risk of scrapping preprints due to outdated content. According to foreign investigations, 30% of the paper pre-printed with offset printing and stored in the warehouse must be disposed of for this reason. The Transpromo market provides a good example of inkjet printing systems. Targeted advertising information is integrated in the transaction bill file, so companies can improve their customers ’communications. Transpromo was a widely discussed topic at the Drupa exhibition, and the field showed a trend of expanding color printing growth. Brand-name product managers are keen on color, and inkjet printing can replicate unique spot colors. [next] Technical articles Continuous inkjet and drop-on-demand In the field of printing production today, continuous inkjet and drop-on-demand are the two dominant inkjet printing methods. Each method has its advantages, but do n’t get caught up in the discussion of technology. For business owners who are ready to invest, it is important to choose their applications correctly. It is best to make a decision based on the specific requirements of each application. In addition to hybrid printing solutions for offset and flexo printing, Kodak ’s printing equipment includes digital presses and continuous inkjet and drop-on-demand systems. Kodak demonstrated the Kodak Stream inkjet technology, Stream concept machine and Stream inkjet head for the first time at this drupa. The Stream concept inkjet head with a width of 105 mm, installed on a Miller-Martiny web offset press, prints variable data on offset prints with its "laser quality" of 600dpi resolution. This inkjet technology integrated on a web offset press provides a perfect example of high-quality hybrid printing. When the tape speed exceeds 300 meters per minute, the variable data is printed on the direct mail print. From a technical level, the Stream concept machine represents a significant advancement in inkjet printing. In particular, the components of the microelectromechanical system (MEMS) in the inkjet head use short thermal pulses to control ink injection. This allows the printing system to print fine ink droplets at precise locations while operating at high speed. The nozzles of the inkjet head are arranged individually, so although the technicality is not complicated, high speeds can be achieved. It is reported that the original Stream inkjet concept technology originated from Kodak's film coating technology and is now developed into inkjet printing. Kodak announced that the first officially produced inkjet machine will be launched in 2010. According to reports, Stream inkjet technology controls the formation of ink droplets based on the principle of continuous inkjet and thermal short pulses, and determines which ink droplets are sprayed onto the substrate and which ink droplets are introduced into the ink return system. In the previous inkjet system, uniform energy droplets were formed from the inkjet by introducing acoustic energy. Stream inkjet technology uses the best control method and higher switching frequency. Therefore, it can achieve the inkjet printing of offset printing quality grade. The combination of Stream inkjet technology with ink and paper will enable printing plants to process a wider variety of substrates, including coated paper. Inkjet printing caused a sensation in Drupa and showed a new perspective for the development of the printing business. Every printer who masters this technology will use this opportunity to become his own advantage. Telescopic Tape Measure,Mini Tape Measure,Automatic Telescopic Ruler,Square Cartoon Minimalist Ruler Huayao Master (Puyang) Automation Equipment Co., Ltd. , https://www.huayaomaster.com
See the sudden rise of inkjet printing on drupa 2008