Sheetfed offset ink preset technology

Digital printing technology has been introduced to China for some years, but the formation of popular trends is a matter of recent years. The domestic printer manufacturers introduced advanced technology and successfully launched their own digital printing equipment system and achieved success in their use. Beiren BR624 sheet offset ink preset system is one example.

Ink volume preset through the CIP3/CIP4 data interface, directly from the prepress system to obtain the layout of the ink information statistical distribution data, and send the ink volume information to the ink remote control system, automatic ink volume control, without the need to scan the plate intermediary mode, Greatly improve the production efficiency.

The ink quantity control data of Beiren BR624 sheet offset ink preset system can be CIP3PPFv3.0/CMYK4-SeparationTIFF monochrome or 256-color standard format file. This kind of file is imported into the CPC control system via a local area network or a mobile storage device (printing control see sample station).

The process of ink preset includes two processes: "pre-set" and "set". The so-called "previous" means that the printer's ink key is set (planned) based on the information on the layout (image density). This requires collecting data before printing, performing ink calculations, etc. to make more preparations before starting up. This is a very critical step in the ink presetting process and can provide information for the press in advance. "Set" refers to the manual or automatic adjustment of the ink key according to the information from the budget, that is, the preset information of the ink amount is introduced into the ink adjustment station. This also requires the printer to have a data interface. This is an automated setup process.

Before using the offset ink preset system, the printer should always check the quality of the final print. The amount of ink required by the printer at the time of printing will change with the environment. The amount of ink has a large relationship with the factors such as raw materials, temperature and humidity, and adjustment of the printing press; these must be directly viewed manually. Human subjective observations are highly accurate but slow. The human eye is most sensitive, but it is most prone to fatigue. At the same time, it takes care of the ink keys on the four color plates. With 20 ink keys per unit, 80 ink keys need to be adjusted, although not every ink key. Need to adjust, but the workload is also quite large, and each press captain's judgment and experience are not the same, often causing quality instability.

After using the offset ink preset system, since the ink preset is calculated using a mathematical standard algorithm for a simulated device with self-learning, after a period of use, the worker only needs to perform a small amount on the CPC console. Manual intervention is sufficient.

Beiren BR624 sheetfed offset ink preset system requires very little manual ink adjustment. Turn on the ink key to adjust the opening, just look at the sample table, select the appropriate program, 20 ink blade opening automatically adjusted (preset). During the printing process, a small amount of adjustment can be made to the individual ink keys. After the adjustment, the ink amount information printed in this way can be recorded in the self-learning system. After repeated learning, the control system will automatically retain an average value. Accurately give the ink value.

Offset printing ink preset system can shorten the start-up time and improve the efficiency of the printing press. A four-color printing machine can complete single-sided four-color registration and color correction of printing plates in a relatively short period of time, shortening the traditional printing and coloring time, and adapting to the time requirements of short-lived printing.

Offset printing ink preset system can reduce the use of paper and ink and greatly reduce production costs. The ink preset accuracy is high, no need for multiple test printing, reducing the paper and ink used in the test printing.

Offset printing ink preset system can improve the printing quality. The ink preset system optimizes the amount of ink data, improving the accuracy of ink presetting and the accuracy of ink control. Since the introduction of data process flow replaces the manual color correction link, it can ensure that the printed sample is consistent with the printed product, and can be repeatedly repeated and consistent, and can adapt to the current customer's high quality requirements for color.

Therefore, with the mature technology of the offset ink preset system, it will surely occupy more markets.

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