Screen printing is called universal printing. It can print on various printing materials, such as screen printing on various plastics, textiles, metals, glass, ceramics and other materials. It is widely used in commercial, advertising, decoration, art, construction, and publishing industries. , printing and dyeing industry, electronics industry; and for any shaped object, regardless of shape, size, thickness, regardless of soft, hard, regardless of surface, plane can be screen printing. Therefore, screen printing has been developed globally since the 1970s. Since the 1920s, China has accelerated the research and development of screen printing materials, equipment, and processes, making screen printing an advantage in competition with flexographic, offset, and gravure printing. The speed of % increases. It is expected that China will gradually become the largest screen printing market in the world. Without doubt, screen printing will play a huge role. First, there will be a greater market in commercial advertising. Chinese consumers’ brand awareness will gradually increase. Some large companies, especially electrical companies, tobacco and alcohol companies, attach great importance to the role of advertising in the promotion of their own images. Quality to a certain extent determines the company’s share of the market. Therefore, various kinds of electrical appliances, packaging advertisements, outdoor advertisements, fixed advertisements, and mobile advertisements provide a vast space for screen printing. In the commercial competition, large-scale outdoor advertising attracts much attention because the large-scale outdoor advertising has a wide field of vision and is effective. China's large-scale color outdoor advertising screen printing with the development of commercial advertising, increasingly shows its large-volume, cheap, colorful, long shelf life, fast delivery and other advantages, has been More and more cities planning department, advertising management The department knew it and attracted many advertisers. Walking in the streets of Beijing, Guangzhou, Shanghai, Shenyang, Wuhan, Chengdu, Kunming, and other cities, such as Beijing's subway station, screen printing large-format color advertising colorful, everywhere. In recent years, large-format color screen printing machines and related equipment have begun to supply in China. The potential market for online advertising commercials in China is enormous. Screen printing commercial advertising will continue to develop at a high speed in the next 10 years. Second, in the packaging market is full of vitality In recent years, screen printing in the packaging industry occupied a certain market. Many offset printing plants use the advantages of thick screen printing ink, strong coverage, and wide range of printing materials, adding screen printing equipment on the basis of the original equipment, taking advantage of two advantages of offset printing and screen printing, large packaging and printing, and also promoting packaging. Industry development. According to statistics, the Asian packaging market has developed rapidly, and among the many Asian countries, the growth rate of packaging industry in China has been the most rapid. The annual growth rate since 1990 is 20% to 30%. China's packaging production in 2000 reached 27 billion to 28 billion US dollars. There is no doubt that the continuous development and application of screen printing technology will better serve the packaging and decoration industry, contribute to the prosperity of the packaging and decorating industry, and bring about a broader development space for the screen printing industry. Such as screen printing high-grade packaging boxes, packaging bottles, cigarette packs, wine bags, especially super-large packaging and product appearance decoration, will also appear in front of customers as goods flow into the market. If we decorate the outer shell of large-scale electrical products with beautiful designs, these products will attract more customers wherever they are and serve as an irreplaceable promotional effect for packaging advertisements. In this regard, silk screen printing has enormous advantages and potentials, but people have not yet discovered its development value. With four-color screen printing, it is very easy to print interesting large-scale packaging and product casings. The development of large-scale color screen printing has created conditions for oversized carton packaging and color image decoration of large-scale electrical product casings, and this project has been developed brilliantly. prospect. Third, the screen printing of electronic products still occupies an absolute advantage In the electronics industry, the screen printing technology has a 90% share. For example, the production of a TV set requires a lot of screen printing technologies, such as switches, operation panels, display screens, and printed circuit boards. It can be said that there is no television without screen printing, and there is no electrical product; it can also be said that if there is no screen printing technology, navigation and aviation industry will not develop. The ultra-large and ultra-thin wall-mounted TVs that represent future trends will also be screen printed. The screen printing integrated circuit, abbreviated as IC, is a very small and light-weight circuit. The so-called integration degree refers to how many transistors can be made on a certain size chip. Now that 16Mbit and 64Mbit have been solved, 100Mbit will soon have to be commercialized. In recent years, the United States, Japan, Britain and other countries are developing sixth-generation computers (neural computers), which will have the same functions as human brains for thinking, analysis, judgment, and fuzzy information processing. The ultra-thin IC used in this kind of computer is manufactured by applying screen printing thick film technology. The conductors, electrodes, dielectrics, resistors, and resistive protection layers are all screen printed. We can say that screen printing technology is not only a high-tech technology, but also directly serves high technology. Fourth, screen printing plate technology tends to high-tech With the rapid development of modern science and technology, computer and electronic scanning technology has penetrated into various fields, forming a cross between technology and industry technology. Fast, modern, and refined products have become the goals pursued by modern people. Under the impact of the wave of science and technology, prepress technology in the printing field has undergone a leap of change. Manuscript collection, image processing, and color separation in printing have all been replaced by color desktop systems. The speed and accuracy are high. Modern special feature. The development of this technology will undoubtedly push the screen printing plate making technology to a higher level. Direct film-jet computer wax-jet stencil technology At the end of the 20th century, with the continuous maturation of digital processing technology, a major technological revolution was taking place in the field of screen-printing platemaking technology. This is a computer-free direct-printing CTS system, also known as digital direct. Plate making method. Simply put, it is to spray a paint directly on a computer, form an image on a stencil, and then develop the screen by lithography. The plate dot angles, thickness, density, and exposure time of the sprayed materials are all set by the computer, followed by direct scanning and platemaking, and then the plates are developed. This new method of plate making has the following characteristics: it reduces the plate making process and achieves the purpose of rapid plate making; it saves the photosensitive film and prevents pollution; it improves quality. Direct-imaging plate-making method Screen printing plates do not need to be coated with photo-resist, but are coated with a chemical coating. They are directly scanned on the original image by computer on a Template that has been sprayed with chemical materials. Afterwards, unreacted chemicals are washed away with water. That is made into the printing plate. This method of plate-making directly on the stencil is the future direction of development. There is also a method of direct image plate making. The laser scanning etch imaging is performed directly on a special metal alloy film by using a computer, and the screen and photosensitive resist can be omitted, and a complicated stretching process is not required. This method of plate making The produced stencils are not deformed, are accurate, and have high printing precision, and are suitable for the printing of fine products. Fifth, the development trend of screen printing equipment At present, China's screen printing equipment, middle and low manual small equipment basic support. Annual sales of 300 million yuan, annual sales of screen printing equipment imports about 200 million yuan. Typical screen printing machines introduced abroad in the 1990s, such as drum-type single-page screen printers, have a maximum speed of 3,600 impressions per hour. The MR company's production of 2m × 4m, six-color computer-controlled automatic screen printing machine, printing large-format outdoor advertising up to 500 per hour. In contrast, China is still relatively backward. By studying the development process and status quo of foreign screen printing technologies, we can draw such conclusions: With the development and popularization of digital printing, in the 21st century, modern screen printing equipment, technologies and processes will play a huge role, and Will continue to be innovative, will gradually replace the backward screen printing equipment, to win a broader market. Sixth, the development trend of screen printing ink In general, China's silk screen printing ink production is relatively complete, some varieties have reached a high level of quality, with an annual output of about 12,000 tons, the output value of 360 million yuan. The problem is that the proportion of solvent-based ink solvents accounts for 60%. When the solvent is dry, it will evaporate in the air, so the pollution is serious. At present, the domestic automation of screen printing ink production is poor. Developed countries generally use computers in the ink manufacturing process, which not only makes the ink production management scientific, but also accelerates the research and development of ink technology and the speed of product replacement. Now, China's high-quality, high-precision inks and special-purpose inks, four-color screening inks and UV inks are almost all imported, with annual sales of about 600 million yuan. Therefore, there are infinitely bright prospects for the application and development of screen printing inks. To this end, screen printing ink companies should develop inks with corresponding fineness, flowability, viscosity, and other characteristics in response to different printing materials and process requirements in different industries. This is also an important step in improving the quality of screen printing products and broadening the field of screen printing. way. In particular, our country's water-based inks have a promising future in terms of environmental protection requirements and usage requirements and need to be vigorously developed. In short, the 21st century will bring unprecedented opportunities for the development of the screen printing industry. With the development of knowledge, information, and digitization, and the improvement of people's living standards, the demand for screen printing products will also increase. Therefore, it is of course strategic for the entrepreneur to shift investment focus to the knowledge economy and to the high-tech industry. Screen printing has strong vitality, development potential and development space with its unique charm and its own characteristics. However, as far as the current situation in China is concerned, from the equipment to the materials, from the plate-making process to the printing and post-press processing are all relatively backward, and no scale or modernization has been formed. Therefore, the screen printing industry must advance to high technology, actively absorb modern science and technology, and make maximum use of computers as a modern scientific tool, so that screen printing equipment, materials, and crafts contain more high-tech components; The characteristics and advantages of the company, avoiding shortcomings, developing rapidly in the entire printing climate, innovating continuously, replacing advanced screen printing equipment, materials, and processes with advanced equipment, materials, and process technologies, making screen printing technology more glorious and creating more Great economic value, the development of a wider range of applications, for China's screen printing technology in the 21st century to create more brilliant achievements.
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