When green printing has become a trend, time-saving and trouble-free CTP has entered people's vision with high profile, what exactly makes CTP raging in the economic crisis, and when various industries gather business to varying degrees, it still stands strong in the industry. heel? Through interviews and surveys, based on the feedback information obtained from the business department, process department, and printing workshop, we found that CTP brings double optimization of time and technology to the actual production process.
Due to the characteristics of CTP itself, the steps of film production are saved, and the production cycle is largely saved. Originally, in the company's traditional film process, the plate-making process relied on outsourcing, and it took at least one day from the document to the film process. If the CTP process is used, one day is enough for the customer â€™s documents to be transferred to the printed paper, and for the printing press, it needs to be produced by time. After the time of the prepress process is greatly shortened, the output value of the printing press increases.
The feedback speed of the CTP process is fast. If there are some problems with the traditional film products on the printing press, it is impossible to re-modify and change the version in a short time, and in the end, it will only cause production delays and other consequences. But now that CTP is used for publication, it can be revised in a short period of time so that the progress of production is not affected. Of course, for the quality control of the CTP process, it is necessary to avoid similar situations as far as possible, which may cause delays in the production cycle. Control to a minimum.
The actual print resistance of ordinary PS plates is about 20,000 to 30,000 sheets. At present, the test durability of Kodak t98 plates can reach 400,000 sheets, which means that for the operation of a large number of printed sheets, the use of CTP plates is to a certain extent. Save a lot of costs.
CTP technology is more conducive to the restoration of files, the level of the dots is clearer, the performance is more accurate, and it provides the possibility of doing a good FM network. From the feedback of the printing workshop, the printing workers are deeply touched by the reduction of CTP. They reflect that the level of the dots is well maintained, which is conducive to their color control during printing.
The controllability of the CTP process is very high, because it has high reducibility, and there are corresponding instruments to measure and monitor the plate material, and the data is strong, so that the entire printing color management can be completely realized, from the printing of digital manuscripts to ps The output of the plate material, and then the control of the color of the printed sheet, each step can use the corresponding data to speak, which is more convincing and scientific.
From the analysis of the current job output through CTP, there are mainly the following characteristics:
1. For products with large volume, high requirements and strict control, take the company with the most CTP publications as an example. A color box construction order requires 450,000 finished products and the number of printed sheets reaches 125,700. If the calculation is based on the print resistance of 20,000 to 30,000 traditional ps plates, 5 to 6 sets of plates are required. In the end, in the case of CTP publishing, a total of 3 sets were published. Since the printing workshop is currently in the adaptation stage for CTP plates, the print durability is only a conservative estimate. Take the Kodak t98 edition material used now as an example, its test durability can reach 400,000 sheets. In addition, the CTP output method itself can't restore the files, which is unmatched by traditional printing, so for such lists, the CTP process is imperative. Some of the company's other products require finished products above 10,000 and printed sheets exceeding 5,000.
Second, it has advantages for products with tight delivery time, or in the case of tight production cycle arrangements. Because in the company's traditional film printing process, the pre-release film is outgoing and requires a certain amount of time. Since the trial of the CTP process, it has great advantages in the accuracy and speed of feedback information. For example, a magic box construction slip was originally produced by a traditional film process. In the production of the printing workshop, the customer was not satisfied with the effect and requested to re-release the film. The reason is that the trapping and overprinting were not handled properly during the production of the traditional film, so some text leakage occurred. Since the customer took the sample to see the sample, it would take some time to re-exit the film. Therefore, it was transferred to CTP for publication and after the corresponding trapping work and timely adjustment were made to the missing text part, the final customer completed the signing and expressed satisfaction with the final effect. .
Third, for products with strict printing requirements, CTP has more advantages in printing reduction and accuracy than traditional film processes. For example, the printing size of an aircraft box of an electronics company is very large, and the process department reflects the outgoing. The large size of the film is difficult to guarantee. Usually, the film needs to be redone 2 to 3 times, which affects the production cycle and reduces the work efficiency Therefore, it is converted to CTP process, which has achieved the effect of customer satisfaction in the case of cooperating with customers to sign on the machine in the recent mass production.
Fourth, for comprehensive customers, customers who have high requirements on product technology and product quality management have advantages. The use of CTP process control is the basis, and can provide the corresponding information that customers need in a timely manner through process software and color management software, which better guarantees the quality of printing services.
Although the characteristics of the current CTP output operation all reflect some advantages, but the operation status of domestic printing companies is not yet perfect, and the CTP process is strictly required for pre-press control, so for domestic printing companies, it is undoubtedly a huge Challenges, it is particularly important to strengthen training.
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