CTcP technology is a kind of technology that inherits the advantages of CTP and can continue to use traditional offset printing materials. It is the realization of computer direct printing on the traditional PS plate material, so that the plate material problem is no longer a digital barrier, so that printing enterprises can easily enter a "digital world". The emergence of CTcP technology, especially in the 2003 China International Full Print Exhibition, CTcP as a new computer direct platemaking technology officially debuted in China, its rapid development has attracted the attention of platemaking and printing industry, especially small and medium-sized enterprises. It has become another highly competitive direct plate making technology after thermal CTP and purple laser CTP.

 

1. Low cost

The first is the low price of plate material. Although the price of CTP plate has fallen somewhat, it is still relatively different from the use cost of ordinary PS plate, CTP plate is about 2 times that of CTcP plate, and the price of its processing kit is 3-10 times that of CTcP plate. Suppose: a medium-sized printing plant plate material consumption is: 3000 square meters/month, ordinary PS plate and CTP plate material difference is: 20 yuan/square meter, then the CTcP process and CTP process plate material cost difference is: 3000 square meters/month ×20 yuan/square meter=60,000 yuan/month, the printing plant only plate material expenses can save 720,000 yuan per year.

 

Secondly, the equipment is simple. The current fifth generation of CTcP has made some major changes on the basis of absorbing the design essence of the fourth generation of products, using LED laser head, higher light energy, significantly improved exposure speed, and life is no longer limited. The most common fifth-generation CTcP machine also produces more than 23 plates per hour, and the resolution is increased from 1500dpi to 2400dpi.

 

2. Good compatibility with traditional processes

 

3. Excellent imaging quality

CTcP technology adopts square pixel imaging, the dot edge is clear and sharp, can reproduce the frequency modulation dot with a diameter of 17μm and the image level and level of 200 lines/inch, and can also complete the image reproduction of 250 lines/inch. The German FORGRA Association has tested the dot reducibility of different types of CTP technologies, and the results show that CTcP systems and thermal CTP systems have the best dot reducibility. And with the development of DMD technology, the resolution of CTcP platemaking machine can be further improved, and the imaging quality will be better.

 

4. Reduce printing debugging time and material loss

 

5. Easy to operate

 

6. You do not need to change the current hardware configuration

CTcP can use 1-bitTiff format data, and can use RIP data, can use conventional developer and processing chemicals, without the use of special network interface and process flow.

 

7. Wide supply of consumables

 

 

At present, some large plate manufacturers such as Lucai second glue, Agfa is committed to the development of new high sensitivity PS plate and has achieved great results; China Institute of Printing Science and Technology of the latest development of a new type of plate P-4G high sensitivity positive image PS plate, the photosensitive speed than the current production of PS plate doubled, thereby shortening the exposure time, improve the efficiency of plate making, extend the service life of the plate printing machine. Huaguang UV-N plate material has been successfully applied to the newspaper printing of Wenxin Group; Huaguang UV-P plate material has been widely used in Changsha, Shenzhen, Dongguan, Kunming and other commercial printing plants. The sensitivity of the two plates is not only in the country, but also the highest in the world, and the level meets the customer's requirements for CTcP plate making time. All these are ready for CTcP platemaking machine to open up the market in China.

 

The application in the field of packaging and printing is gratifying. At present, many large and medium-sized packaging and printing enterprises in China have introduced CTcP technology to complete the design and plate making of multi-color and spot color packaging products. Among them, the most representative are Yonghong Printing Group, Junsi Printing Group, Shanghai Baoyin Color Coated Metal Co., LTD., and Ningbo Sanhe Printing of comprehensive printed matter, which mainly print folding cartons, all kinds of clothing tags and signs. In addition, CTcP technology is also favored by some professional prepress platemaking companies, such as the largest graphic output in Dongguan City, Guangdong Province, platemaking company Galaxy Printing Art Co., LTD.

 

 

At present, the traditional plate direct plate making technology is suitable for China's national conditions, it takes into account the improvement of technological progress and efficiency, and has a certain living space in our country. Moreover, our country is a big country in the production and use of PS version, so this technology has special significance for our country. For printing enterprises that expect to enter digital computer prepress processing and plate making, especially some small and medium-sized enterprises, CTcP is one of the ways that can be considered.