Technical performance of the hottest direct imagin

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Technical performance of direct imaging printer

with the continuous introduction of direct imaging (DI) printer, the definition of "digital printing" in the industry has become increasingly ambiguous. So far, 10 manufacturers have been able to produce Di printing machines with a complete range of models, from two-color machines to six color machines, with a printing format of 2 to 8 pages. Heidelberg started the development of Di printing machine in the early 1990s, and produced gto-di printing machine

di printing machine provides an option for companies who want to replace (or supplement) color printers, which can bring more benefits to the company. As the di printer can shorten the pre press preparation time necessary for traditional offset printing, some printers find that for long-term printing, the di printer is more competitive than the toner based system, greatly reducing the cost. In addition, some printing companies use Di printers to print color book covers and black-and-white printers to print text

di printing machine can make plates directly on the plate cylinder. Compared with traditional plate making or CTP workflow, this plate making method has many advantages. The first and most critical advantage is to improve the production efficiency and accuracy of printing, because traditional plate making or CTP makes plates in the prepress process, and then installs the plates on the printing machine, which will inevitably produce some accuracy errors. Di printing machine installs the blank plates on the plate cylinder, Then image. The paper is accurately positioned by the printing machine, and the required accuracy can usually be achieved at the first printing

the data of the printing plate image is interpreted in the process of transmission to the printing machine, so that the automation of the pre press preparation program can be realized, such as ink key setting. Because this automatic program can complete a variety of tasks, it reduces the prepress work done by the printing operator in the past, and greatly shortens the prepress preparation time. Different from traditional offset printing, di printing is a kind of waterless printing, which can not only reduce the cost of EVOH high barrier resin and other costs related to traditional fountain solution brought by cokeli, a chemical, at the Chinaplas exhibition in 2016, but also be of great benefit to the environment. Any paper that can be used for traditional printing can be printed by Di printer. If the customer needs a thick cardboard to print a short version, the color printer cannot complete it

one of the main aspects that people hope to install Di printing machine in the printing workshop is that it organically combines offset printing and digital printing. Using Di printing machine can quickly print multi-color book covers, and then print with a toner based printer. This workflow is very suitable for personalized and variable data applications - the color area of each page does not change, while personalized data, such as names and addresses, are different on each page. Many printing companies take advantage of these two printing technologies to provide high-quality and personalized color printing

the American Printing Technology Foundation (g ATF) has conducted an in-depth investigation on the direct imaging printer in recent years. GATF sent a test form to the printer with the direct imaging printer and asked them to print 100 samples of the test version. GATF analyzed the values of point enlargement, image reproduction, ink density, printing contrast and trapping, and came to the following conclusions:

1 The quality of the sample printed by the direct imaging printer is very close to that of the traditional sample

2. Because the plate making party yinbang metal composites Co., Ltd. of direct imaging printing will bring the essential characteristics of the new scheme method of brazed aluminum alloy composites with high strength, corrosion resistance and heat dissipation, it determines that the prepress proofreading process is very important

3. The number of lines added for direct imaging printing generally ranges from 175 to 200lpi

4. Generally, the printing plate length of direct imaging printing machine is between 25000 and 100000

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