Simple classification of the hottest digital print

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Simple classification of digital printing press

technology of digital printing press

digital printing press can be divided into two types: version free digital printing press and version digital printing press

the common feature of plate free digital printing is to realize variable information printing. At present, the plateless printing press can be divided into three ways

plateless digital printer

1. electronic photography method

first fully charge the photoreceptor (OPC), then use laser to take light from the image, generate electrostatic latent image, then cover the toner on the electrostatic latent image, and finally change the toner image longitudinally. Test stroke: 0 ⑴ 00mm; Transfer to paper. There are two kinds of toner, powder and liquid. At present, powdered toner is mostly used

2. Electrocoagulation mode

this kind of printing machine is generally a printing color group. If multiple groups are connected according to the necessary color number, it forms a multi-color printing machine. If a turnover device is added in the middle, two-sided printing can be realized, so it can be suitable for printing for various purposes. Moreover, the image quality of printed matter is close to that of continuous tone image

3. inkjet mode

inkjet printer is a dot matrix structure composed of many nozzles. By receiving the layout information of the computer, the ink is emitted from the extremely fine nozzle, and the direction of inkjet flight is controlled by the electric field to generate images and graphics on the paper. In some inkjet printers, the ink jet and the formation of green particles are realized by charging and pressurization

the purpose of inkjet digital printing machine is very different in speed, resolution and color reproduction area

printed digital printer

a printed digital printer must be equipped with a pre-made printing plate on the printing plate cylinder, but this kind of printing plate is made directly on the printing machine. Compared with the traditional printing machine, although this kind of printing machine also needs printing plates, because it is a direct plate making method in the machine mode, only one printing machine can complete the production process from data to printed matter, which not only saves equipment, time, materials, but also reduces the production cost

1. The golden age of special printing machine has long passed. The main representative model of special printing machine is truepress. Its basic structure is on the four-color printing machine with double diameter cylinder structure, which is equipped with Mitsubishi silverdigiplate direct plate making 3, Brinell hardness (Bhn) = Rockwell hardness (HV) and development equipment to form a composite structure printing machine

because Mitsubishi silverdigiplate is used for direct plate making, the cost is low, and printing inks with various properties can be selected according to different needs, so this printing machine is closer to the printing conditions of traditional printing. Moreover, UV ink can be used for this plate, which solves a series of problems caused by the long drying time of ink in previous printing

2. Traditional printing press

the main representative model of traditional printing press is Heidelberg speedmasterdl74. This model is based on the traditional printing machine s dispensing industrial model peedmaster 74. Therefore, PS plate or direct plate making method can be used for plate making, with a resolution of 2400dpi. The plate material is pearlgold of Presstek company, and the same type of plate material

all the digital printers mentioned above receive layout information in digital form for printing. Therefore, how to correctly transmit the data of the network or database to the printer is a key problem. In the whole process of data transmission, we must first identify the bottleneck in order to improve production efficiency. In the future, it is necessary to carry out research in the following aspects:

1 Digitalization of the whole page of printed matter

2 Digitization of analog negatives

3 Electronic page distribution, electronic binding

4 High speed of calculation time

5 Data processing corresponding to the amount of data

6 Saving layout data

7 Application of database (end)

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