Application of ink control system in newspaper printing
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Newspaper printing has developed extremely rapidly in recent years, along with digital workflows, CTP The application of technology has gradually realized the pre-press digitization, which has brought another technological revolution in the printing field. On the other hand, the amount of newspaper information is expanding, the color layout is increasing, and the information transmission time is shortening. In order to improve the market competitiveness of newspapers, some new technologies and products are highly concerned by the newspaper printing industry, which can be used to improve timeliness. The printing color control technology of printing paper printing effectiveness and stability - printing ink control technology is a successful application.
·The main problem of current newspaper printing
When the newspaper is printed, the operator of the printing machine often cannot see the original, and can only adjust the ink volume of the printing machine by the experience of the leading machine, which often causes the printing ink color to be inaccurate; on the other hand, due to the difference in personnel quality, the printing machine Factors such as hardware differences between the two cause the cost of printing adjustments and the quality of printing is unstable. Enterprises that use digital proofing will have better conditions. The experienced leader can pre-regulate the ink key of the printing press according to the color characteristics of the proofing sample, but it still can not significantly improve the printing production efficiency. Moreover, the adjustment of the ink key is time-consuming and laborious, and usually requires several times of debugging to meet the requirements, and the speed of the rotary printing press is quite high, and a large amount of waste report is generated in the process of adjusting the ink color, which wastes precious time. Some printers also used the method of plate scanning in the early stage to transfer the color separation information generated by the printing plate to the printing machine console to complete the preset work of the ink key. However, this method is complicated to operate, wastes time, and has a large investment, so it is not suitable for a high-efficiency production enterprise such as newspaper printing.
The ink control technology introduced by Gaoshu is an effective solution for the newspaper industry to face problems such as shortening the printing cycle, improving printing quality and reducing production waste.
·Ink control technology introduction
The main body of ink control technology is a CIP3 ink control software that can preset the ink keys of the printing press. It directly reads RIP. After the graphic data, the machine control information is obtained according to the size of the printing plate and the number of ink keys, and is in PPF. The files are recorded or printed on paper and then used for the ink key presets of the press, which ensures higher accuracy and greatly improves the rationality and accuracy of the ink distribution of the press. With this efficient information transfer mode, it is possible to standardize the operation of the staff, save printing preparation time, reduce waste of consumables, and improve the quality of newspaper printing. It has changed the traditional way of pre-adjusting the color of newspapers based on work experience by the printing machine. Ink control technology provides a guarantee for companies to adopt digital production and management processes. Whether the press has CIP3 The information interface can be used to enjoy the results of ink control technology.
·Ink control technology implementation application process
First, the software receives the 1-bit TIFF file after digital imposition. According to whether the printer has CIP3/CIP4 information interface, it has the following two functions.
(1) Printed ink amount information The ink amount information is printed out by the windows printer. Due to the direct use of CIP3 The ink quantity data needs to have a corresponding environment, especially the printing equipment needs to be configured with CIP3/CIP4 information interface. For the printing machine without such interface, it is impossible to enjoy CIP3 before. The benefits of digitization. With ink control technology, the leader can adjust the ink key according to the standard information printed, which is faster than manual analysis or plate scanner to obtain information, thus shortening the pre-press adjustment time, so that there is no CIP3/CIP4 information interface. The press can also enjoy the time-saving and efficient digital advantages.
(2) For generating PPF file CIP3 / CIP4 ink printer interface information, system layout can be converted into color information of a standard RIP PPF The data is transferred to the corresponding press control system for digitally automatic adjustment of the amount of ink.
·success case
Some newspaper printing companies, such as Hangzhou Daily Newspaper Group and Changsha Evening News Newspaper Group, adopted the ink control technology introduced by Gaoshu.Has achieved significant results.
(1) Production efficiency is significantly improved, and printing preparation time is shortened by 5 to 8 Minutes, because there is accurate ink area analysis data input in advance, the color of the first newspaper printed after booting can basically meet the requirements, and then a little adjustment can be officially high-speed printing.
(2) Improved print quality, especially for color printing. Since the control data of each machine is unified and the color is stable, the printing quality is no longer fluctuating, and the amount of newsprint is also reduced.
(3) Established a digital and standardized printing production process for the newspaper printing factory, which enabled the new employees' technical training to be based on evidence, and made the printing control change from experience to digital control, and to the comprehensive printing digital process. further.