Development of Screen Printing in the 21st Century (II)

Fourth, the 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 and integration of technology and industry technology. Fast, modern, and refined products have become the goals pursued by modern people. Under the impact of this wave of science and technology, the prepress system in the printing field has undergone dramatic changes. The manuscript collection, image processing, and color separation and plate making in printing have all been replaced by a color desktop system. The speed is high and the precision is high. Modern features. The development of this technology will undoubtedly push the screen printing plate making technology to a higher level.
The bottomless version of computer direct thermal wax template imaging: In the late 1990s, with the continuous maturity of computerized digital processing technology, a major technological revolution was taking place in the field of screen printing plate making technology. This is the case of computer-free film-making CTP. , also known as digital direct plate making. Simply put, is to spray a paint directly on the computer, form an image on the template, and then develop the print. This is the direct scanning of plate-making images, the angle of their dots, and the thickness of the material being sprayed. The thinness, density, exposure, and other procedures are all designed in advance with a computer, and then they are directly scanned and plated and then developed. This new method of plate making has the following characteristics: it reduces the plate making process, and the purpose of rapid plate making is to save the film and prevent the pollution Z from improving the quality.
Now there is a method of direct imaging of plate stencils. Screen printing plates do not need to be coated with photo-resist, but instead they are coated with a chemical coating instead of hot wax. Instead, they use a computer directly on the stencil L of the already-sprayed chemical material. The original image is scanned by a computer on a stencil, and the image is then removed by flushing away the chemical material with water. This method of plate-making directly on the stencil is the direction of future development. There is also a direct imaging method of platemaking that uses a computer-scanning laser imaging on a specially fabricated metal gold plate. The screen and sensitized rubber can be omitted, and no complicated stretching process is required. The stencil produced by this plate making method is not deformed, has good alignment, and has high printing precision, and is the direction of future development.
Fifth, the development trend of China's screen printing equipment At present, China's screen printing equipment, middle and low manual small equipment basic support. Annual sales of 300 million yuan. The annual sales of imported equipment from India is about 200 million yuan.
In the 1990s, a representative screen printing machine was introduced abroad. Such as roller type single page screen printing machine up to speed 3600 per hour. US M&R company's format Zm*4m computer-controlled six-color automatic screen printing machine, printing large-scale outdoor advertising up to 50O 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, the modern screen printing equipment, technology and technology 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, screen printing ink development trend In general, China's silk screen printing ink production is relatively complete, and some quality is very good, it should be said that the rapid development. The annual output is about 120,000 tons and the output value is 3.6 billion yuan. The problem is that the proportion of solvent-based ink solvents accounts for 60%. When drying, the solvents must be evaporated in the air, so the pollution is serious.
At present, the domestic printing ink production automation level is poor. In developed countries, computers are widely used in the ink manufacturing process. This not only makes the ink production management more scientific, but also accelerates the research and development of ink technology and the speed of product replacement.
Now, China uses high-quality, high-precision inks and special-purpose inks. Four-color screening inks and UV inks are almost all imported. The annual import volume is about 600 million yuan. Therefore, there is a bright future for the application and development of printing inks. For this purpose, screen printing ink companies should develop inks with the required fineness, fluidity, viscosity and other characteristics for different printing materials and process requirements of different industries. This is to improve the quality of printed products and broaden the scope of printing in the same field. The important way. In particular, our country's water-based inks, from the perspective of environmental protection requirements and usage requirements, have a promising future and need to be vigorously developed.
In short, the century is based on knowledge and information. Networking and digitalization have become the main features of the new economy. It will bring unprecedented opportunities for 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 is also increasing. Therefore, screen printing companies should naturally focus on high-tech investment. As an entrepreneur, shifting the investment focus to a knowledge-based economy and turning to a high-tech industry is undoubtedly a strategic vision.
Screen printing is characterized by its unique charm and its own features such as universal, special printing, and wide application. It has a strong vitality, development potential and development space. 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 the post-press processing are all relatively backward, with no scale and modernization. Therefore, the same industry must enter the high-tech industry, actively absorb modern science and technology, and maximize the use of computing. This modern scientific tool has brought more high-tech ingredients to India's printing equipment, materials, and processes. It has closely followed its own characteristics and advantages to avoid weaknesses and to make rapid progress in the entire printing climate. Exhibition, continuous innovation, replacing advanced screen printing equipment, materials, and processes with advanced technology-rich equipment, materials, and process technologies, making screen printing technology more luster, creating greater economic value, and developing more extensive applications Fields to win more markets. For China's screen printing technology in the 21st century to create more brilliant achievements.