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Breakthrough of domestic gravure printing equipment (I)

in the past 20 years, China's food, beverage, tobacco, medicine, health products and cosmetics industries have developed rapidly, and the demand for gravure printing is also increasing. As of 2000, gravure printing accounted for about 10% of the printing industry; In packaging and printing, gravure printing accounts for 19%, mainly focusing on flexible packaging material printing and paper container packaging printing. Plastic film printing is almost all gravure printing. Almost all provinces and cities in China have flexible packaging printing plants, mostly in the eastern coastal provinces and cities, with advanced equipment and generally strong technical and economic strength. The number of small and medium-sized enterprises is dominant, but there are already a number of large-scale enterprises. At present, at least nearly 20 manufacturers have 3-8 imported gravure printing production lines. Zhejiang Longgang Town, one of the three major packaging and printing bases in the country, has 576 packaging and printing enterprises, of which a considerable proportion are gravure printing manufacturers

although there are not a few gravure printing manufacturers in China, imported gravure printing equipment accounted for almost half of the domestic market at the beginning when this technology can produce attractive packaging products. From 2001 to 2002, the import of gravure printing machines in China reached a relative peak. The import volume increased significantly compared with the previous two years, and the grade of imported equipment improved. According to incomplete statistics, from 2001 to 2002, China imported more than 20 gravure printing production lines from Europe alone

so far, more than 420 gravure printing production lines have been introduced nationwide, including printing, laminating, slitting, bag making and other supporting equipment. Among them, the printing speed of medium and high-grade multi-color gravure printing machines is generally more than 250 meters/minute. Foreign manufacturers mainly include boster in Switzerland, chambang in France, Stevenson in the United States, ceroody in Italy and all India in Australia

since Wuxi Guotai Color Printing Co., Ltd. introduced the first sirudi flexible packaging gravure printing machine in 1982, China has introduced more than 300 flexible packaging gravure printing machines in total. According to incomplete statistics, from 2001 to 2002, among the European gravure printing machines imported by China, the proportion of flexible packaging equipment reached an unprecedented level (more than 30%). Ceroody, boster, ShangBang, CMR, Fuji and other Japanese and Korean companies all have good performance in China, which is significantly better than the previous two years

domestic manufacturers strive to catch up with and surpass

the development of gravure printing technology in China started late. In the 1980s, facing the backward situation of packaging and printing in China, the relevant departments increased the development of packaging technology, which made the packaging and printing technology develop rapidly, thus providing good conditions for the progress of gravure printing technology. After nearly 20 years of efforts, China's gravure printing process is relatively mature, the equipment is relatively advanced, and has a certain scale. Its importance is second only to lithography as the second largest printing method, which occupies an important position in China's printing industry

according to incomplete statistics, at present, there are more than 50 gravure printing machine manufacturers of various scales in China. The total annual production of gravure printing machines of various specifications in China exceeds 5. China Railway Corporation will no longer invite tenders for the use of 00 polyurea materials. The product series and specifications are basically matched, and the product application has expanded from packaging to other fields. The maximum speed has been increased from 50-60 M/min to 120-150 M/min, and then to 200 m/min. at present, it has reached 130-300 M/min. There are a considerable number of gravure machine auxiliary equipment and components (tension control system, registration control system, ESA, rubber roller, etc.) manufacturers, and the number is increasing. The functions of gravure printing machines are continuously complete, the degree of automation is continuously improved, and some products are close to the level of Japan

with the increase of the number of imported equipment, the production and sales of major gravure printing machine manufacturers in China have increased significantly in successive years. Various landmark events in China's gravure machine manufacturing industry: first, Japan Fuji gravure machine introduced and assembled from 1994 to 1995 marked that China has entered the era of producing automatic or semi-automatic medium and high speed gravure machines (greater than 120 m/min). Second, the birth of the domestic 300 meter/minute gravure printing machine in 2003 marked that China has entered a new stage of manufacturing high-speed gravure printing machines

as a leading enterprise in the production of gravure printing machines in China, azj series unit type plastic gravure printing machines produced by Shaanxi beiren occupy 80% of the domestic high-speed and high-end machine market

shaftless technology is one of the most remarkable developments of gravure printing machine in the past 30 years. Compared with the traditional mechanical transmission gravure printing machine, shaftless transmission gravure printing machine has the following advantages: high energy consumption efficiency, low noise, high accuracy, great production flexibility, short product replacement time, low commissioning waste

the shackles of the development of gravure printing machines in China

although domestic manufacturers have been striving to catch up with leading foreign companies in terms of technology, the development of domestic enterprises is difficult due to the extensive growth business model. From the overall situation of domestic gravure printing machine manufacturers, the shackles of development mainly focus on the following problems:

there are many manufacturers, many domestic gravure printing machine manufacturers, fast development speed, low level of specialization, low overall technical level, and few powerful enterprises. At present, China has more than 50 gravure printing machine manufacturers, which is more than all gravure printing machine manufacturers participating in the 2000 drupa exhibition. According to the distribution of provinces and cities, Shaanxi has developed 11 (21%) agricultural machinery clutch piston materials, wet clutch friction materials, cotton picking fingers and special materials for cotton removal discs, 10 (19%) in Guangdong, 20 (38%) in Zhejiang and 8 (15%) in Jiangsu. In addition, there are at least one in Beijing, Shandong, Hubei and Hebei, and the actual number may be more. Most gravure press factories are located in the area where the flexible packaging printing factories are concentrated, and some are actually developed synchronously with the flexible packaging factories in this area, which are more intuitive in the construction, creation and operation

there is a big gap. The technology gap between China and Japan is about 10-15 years. Some components and structures have reached the level of Japan in the early 1990s. The equipment gap with South Korea is relatively smaller. Compared with European products, the gap between domestic gravure printing machines is larger. The reason is that European equipment has achieved higher speed and stronger functions, and has a more important position in the world market. Compared with manufacturers with international leading level, the overall technical level of domestic gravure printing machines is at least 20 years different, and the market internationalization level is at least 30 years different

low speed and poor stability. Generally, the printing speed of domestic machines is less than 150 m/min, while the advanced equipment in Asia is between 150-250 M/min. Some domestic gravure printing machines can compete with most imported gravure printing machines in terms of speed, control system, price and after-sales service, but their stability is significantly different. A considerable number of newly developed domestic machines fail to pass the acceptance after installation and commissioning, and the quality and efficiency are not satisfactory during operation. The proportion of domestic equipment is small. At present, it can produce up to 10 color groups. There is no online processing (such as compounding and slitting) unit, and there is no "series" configuration

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