CTP and digitization

Driven by the pre-press digital revolution, the Chinese printing industry entered a period of rapid development since the late 1990s. This digital concept, which will subvert the traditional printing production method, has spread throughout the printing industry. In this storm, which has been hailed as “changing the fate of China's printing”, the prepress platemaking field has been pushed to the forefront of the digital revolution as a pioneer, and thus has become the best of all kinds of emerging technologies and production concepts and new types of equipment. Debut and competition stage. Among the many new prepress equipments, the most outstanding ones are computer-to-plate (CTP) equipments that combine “information digitization, production standardization, and management systemization”. With its "high-tech, high-quality, high-efficiency" advantages, the equipment has become a hot spot for many manufacturers to compete for investment, and has once become a symbol of first-class printing companies and synonymous with pre-press digitalization.

But does owning CTP mean that you really have digital?

With the development of CTP technology, people found this answer to be uncertain. Many unsuccessful purchase cases have repeatedly proved the same truth: simply introducing CTP equipment is of little significance for achieving simple and efficient digital production; only the performance of the equipment is integrated with the production advantages and characteristics of the enterprise. In order to maximize the effectiveness of CTP devices.
What is the difference between CTcP and CTP? What kind of prepress equipment best reflects the advantages of digital production? So far, prepress computer direct plate making equipment is divided into two categories: ordinary CTP and CTcP. Although both processes save the film-making process and all use digital information, the "pre-press production - data transmission - direct plate making" one-stop operation, but from the perspective of technical characteristics and actual process implementation, CTP and CTcP There are big differences. CTcP is an extension and development of CTP.

CTcP images digital information on a common PS plate, while CTP images digital information on a dedicated CTP plate coated with a special photosensitive layer.

As everyone knows, "things are rare." Since the wavelength of the CTP laser source is very demanding and the range of the photosensitive wavelength is very narrow, the imaging exposure of the CTP is extremely demanding on the photosensitive layer of the plate. The corresponding coating process and production cost of the CTP plate material are also cumbersome and expensive for the conventional PS plate which has been popularized earlier. The biggest headache for printing company purchasers is that CTP plates are not only expensive but rare, but only a few of the imported plate suppliers such as Agfa, Kodak Poly, and Fuji Star. Domestic brands are not only rare, but the specifications and performance of the plates are also far from the imported ones, which cannot meet the requirements of normal printing.

Printer operators familiar with production know that every piece of printing in production is half or more expensive than the original. If a PS version of 35 yuan, a CTP version of 70 yuan, a small-scale printing company with an annual edition of 20,000 square meters will lose 700,000 yuan a year. Although CTP can bring a lot of potential economic benefits to enterprises, in the face of such a clear cost gap, many advantages are also pale. [next]

Difference 2: CTcP and CTP exposure techniques are different.

Whether it is a CTcP device or a CTP device, exposure technology is the core content. It is not only related to the quality of exposure imaging, but also to the life of the device. The structure and motion of the exposure head directly affect the maintenance and maintenance of the equipment in daily use.

CTcP uses short-arc ultraviolet high-pressure mercury lamp as the exposure light source, and completes the whole platform exposure operation through digital dot imaging technology and magnetic levitation driving method.

Its exposure head consists of two parts: one is a high-precision optical component; the other is a modern electronic sensing device that controls and detects exposure imaging. The device can automatically adjust the height of the exposure head according to the unevenness of the surface of the printing plate, thereby ensuring the exposure quality. The CTcP exposure head is easier and easier to maintain than a CTP device that uses a laser as a light source; replacement of the light source can be done without the need for a professional. The magnetic levitation drive technology without mechanical wear not only minimizes the accuracy error of the whole equipment, but also greatly reduces the probability of equipment failure, and provides a solid guarantee for creating high-quality products. This advantage is not available in CTP equipment, because the machinery used every day, the long-lasting transmission will definitely lead to wear, which can not be avoided anyway.

Difference 3: The performance of CTcP, CTP and printing process fusion is different.

The ultimate goal of plate making is printing, and the advanced plate making method has practical value only if it is smoothly joined with the printing process.

Although both CTcP and CTP devices can be integrated into the printing process, the requirements and results are completely different.

The coating material of the CTP plate material is very different from the coating material of the ordinary PS plate, and the printability which is exhibited in the printing process is also greatly different from the printing suitability of the ordinary PS plate. The ink balance of the media, the pressure of the press, the pH of the liquid, and the environment around the press are all re-adjusted and tested in actual printing. Practice has proved that this is a relatively long and complicated change process for both the operator of the press and the manager. The replacement of various printing parameters has increased the difficulty of the rapid integration of CTP and printing process, resulting in an increase in the time for enterprises to recover investment costs and generate economic benefits.

CTcP has an outstanding advantage in the integration with the printing process. The consistency of the plates guarantees the normal operation of the printability. Printing companies do not have to worry about the problems caused by changes in printability, and do not have to spend a lot of time and effort to complete the matching of plates and printing presses. The relatively stable printing parameters enable the plate making process and the printing process to be integrated in a very short time and produce economic benefits. [next]

CTcP: taking into account technological progress and efficiency

Real digital production should not only have high-tech content, but also create real economic benefits for enterprises; truly effective digital equipment should perfectly integrate technological progress and efficiency improvement. It is not difficult to see from the above analysis that CTcP is such a digital plate-making equipment that takes into account technological progress and improved efficiency. Its difference from CTP devices is why it is better than CTP devices.

In addition, CTcP has all the advantages of digital plate making equipment.

Advantage 1: Excellent image quality

The CTcP technology uses square pixel imaging, and the edges of the dots are sharp and sharp. It can reproduce the tone and level of the FM network with a diameter of 17μm and the image with a screen line of 200 lines/inch. It can also complete 250 lines/inch screening well. The image is copied.

The FOGRA organization of the German neutral printing research institute has tested the dot reductive properties of CTcP, thermal CTP, photopolymer CTP and silver salt CTP. The results show that these technologies are significantly different in plate making quality. CTcP once again proves that traditional offset printing plates have superior exposure performance and print quality.

The test report also proves that the CTcP system has high copying accuracy, and the positioning error between each exposure unit is kept within ±2 μm.

Advantage 2: Perfect workflow

In the configuration of the workflow, the CTcP system has developed three solutions to meet the needs of various users in line with the goal of providing assistance to as many users as possible.

(1) Post-RIP solution: This process integrates the mainstream technology of prepress process “RIP post-version” and “RIP one-time proofing”, which is an open and reliable digital prepress solution.
(2) Nexus solution: It is a compatible high-quality workflow, suitable for users who are mostly packaging and labeling.
(3) Odystar Solution: It is a particularly reliable and open workflow for all prepress and publishing prints. It can be easily integrated with third-party products in the workflow; it is especially suitable for commercial printing. [next]

Advantage 3: Easy to be compatible with other prepress systems

All UV-Setter series CTcP platesetters are equipped with an open 1-bit Tiff interface. Regardless of the equipment and workflow, as long as the output file is in 1-bitTiff format, it can be perfectly integrated with the CTcP platesetter. This creates good conditions for the smooth transition from the traditional film plate making process to the digital direct plate making process. Since the plate is unchanged, and the 1-bit Tiff file format is used for the photo output, in the initial stage of production, the user can simultaneously implement the traditional plate making and digital direct plate-making two-line operation to ensure a smooth transition of the new technology. For the printing company, this means that the operator can quickly and easily implement the digital plate making process without making additional investment. In addition, simple equipment and open workflow will have more advantages for future maintenance and upgrades.

Advantage 4: Platform-type exposure structure, flexible format

For the printing house, the variable exposure format is a good solution to the problems of single applicability and inconvenient use due to the inconsistent model of the printing press. The platform-like structure has advantages over the other versions of the exposure structure. For the missing layout, it doesn't have to be like other CTPs. It needs to passively wait for all the pages to be in order to be exposed. Instead, it can empty the missing pages to expose other existing pages. Finally, when the missing files arrive, they can be exposed. Save time and effort.

Advantage 5: Bright room operation

Since the conventional PS plate does not sensitize visible light under normal conditions, the user can confidently complete the plate making work in a bright room environment.

UV-Setter series CTcP platesetters produced by Besin have manual, semi-automatic and 5-series (four-open format), 7-series (open-format), 11-series (full-open format) and N-series (reportable). Fully automatic and other models for users to choose. The highest publishing speed of the 7 series of open formats is up to 20 sheets per hour; the N series of newspapers can achieve a maximum publishing speed of up to 120 sheets per hour.

Whether technical, technical or economical, CTcP is unique among many CTP products and is highly competitive and competitive. What are you hesitating about choosing CTcP?

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