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Screen Printing in the packaging industry, dynamic
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| Published：2009.10.07 News Sources：HC Network Views： |
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Screen printing is an ancient printing methods, belongs to a kind of hole printing. Printed version of the part of the screen mesh can be through the ink to the printing materials were missing, in the graphic substrate to form part of it; printed edition of the rest of the mesh blocked, not through the ink, the substrate to form blank.
Screen Printing is the beginning of the 20th century, 80 years later, with the continuous development of reform and opening-depth and developed a practical technology. Its printing materials include metals, plastics, ceramics, glass, paper, fabric, etc., and regardless of plane, surface, thickness can be screen printing, known as the "universal printing" technology. In recent years, screen printing in the packaging industry occupied a certain market. A lot of offset printing mill, flexo printing ink factory use of web-thick, covering strong, coarse particles can be of special inks and printing features, on the basis of the original device adds network printing equipment, play offset, flexo, screen printing their respective strengths to develop packaging and printing, but also promoted the development of the packaging industry.
Packaging and printing product categories
Printing is to meet the packaging requirements for the purpose of printing, its products of various packaging. At present, the packaging and printing products can be divided into five main categories:
1. Monomer products applying the "single package", such as trademark, labeling, etc.; 2. Packaging within packaging, such as cartons, lining cells, etc.;
3. Packaged goods outside packaging, such as the color of thin corrugated boxes, etc.;
4. Color product advertising, product samples, product notes, etc.;
5. Some novel packaging of various commodities.
Screen Printing Features
Screen printing has its many features is what has been widely applied to an important reason for packaging and printing products, screen printing characteristics can be summarized as follows.
1. Ink thickness, coverage and strong. Offset and letterpress ink layer thickness of only a few microns to 12 μ m or so gravure and flexible printing ink layer thickness of 10 μ m, while the screen printing ink layer thickness far exceeds the thickness of the ink, up to 30 ~ 100 μ m. Foam ink printing Braille ideas, after the ink foam thickness of up to 300 μ m; specialized printed circuit board thickness of screen printing, ink thickness of up to 1 000 μ m. Therefore, ink cover is particularly high in all black to pure white piece of paper or metal printing plate. In addition, the ink thickness can also be used, such as the characteristics of the circuit board like a variety of industrial printing.
2. Applicable to all types of ink. Screen printing can be used with any kind of paint to printing characteristics, such as oil, water-based variety of ink can be used. Screen printing inks, is actually a variety of coatings. Other printing ink pigment particle size required to be fine, but as long as screen printing ink through the screen mesh and coating can be used. Screen printing ink used in the wide, has gone beyond the usual definition of ink, screen printing ink sometimes referred to as "printed material."
3. Are not substrates materials restrictions. "Where the ability of printer objects, can be screen printing." This statement covered by screen printing of the printing range is unprecedented, and to any kind of traditional printing can not match. Network soft and flexible printing plate, printing pressure is small, therefore, not only on paper, textiles and other soft materials for printing, but also can be easily damaged glass, metal, rigid plastic substrates such as high hardness directly on for printing. Therefore, screen printing known as the "universal printing."
4. Is not the size and shape of the substrate limitations. General printing can only be carried out in the plane, but screen printing can not only printed in the plane, but also in exceptional shape and the concave-convex surface forming material on the printing, but also can print a variety of super-large posters, Vertical Blind, curtains, etc. . Meanwhile, the network can also be printed in the ultra-small, ultra-high-precision printing on items, and can also be printed in the surface or a spherical surface, this printing has a great deal of flexibility and broad applicability.
5. Lightfastness properties of strong product. As the screen printing ink can be printed thick, you can use a variety of bonding agents and a variety of pigment, even if the coarse pigment particles can also be used, so it can be easy ways to light-fastness pigments, fluorescent pigments into the ink so that printed graphics maintain the luster from the permanent effects of temperature and sunlight, and even glows at night.
6. Printing flexible. Screen Printing, like with other types of printing can be carried out large-scale industrial production, at the same time, it also has a plate-making convenient, inexpensive printing diverse, flexible and easy to grasp the characteristics of technology, it has developed rapidly in recent years. It is not a small-business restrictions, can be mechanized large-scale industrial production, township and village enterprises, individual craft can also be produced.
Screen Printing Status
According to statistics, China's current one million have been screen printing business, which begun to take shape about three thousand companies, employing more than 250,000. 80 years from the 20th century onwards, because of screen printing materials, equipment, technology has accelerated the research and development, the rise of the advertising industry, computers, electronic communications industry increased, as well as interior decoration and trendy clothing and many other emerging market demand for screen printing products increases, and further promoted the development of China Screen Printing Industry to become a "sunrise industry." According to China's Screen Printing & Graphic Imaging Association, the industry in 2000 sample survey, the size of the domestic screen printing business is relatively larger, the relative concentration of capital, 70% of the companies annual output value of 100 million yuan and more than 51% of the enterprises annual growth rate of 15% ~ 29%, 20% of the companies growth rate of over 30%. While 10 years ago, the annual output value of 20 million or less, tens of thousands, or even a few thousand dollars for a considerable proportion of the workshops.
1. Screen Printing Equipment
Screen Printing machinery and equipment manufacturing and supply companies are more and more able to provide multi-functional, large-format, semi-automatic, three-quarters of automatic, fully automatic, single color, multicolor, flat and surface printing.
2. Wire Mesh
At present, the domestic production of plate used in the low-level screen has basically meet the market demand, some high-end products still has to import screen.
Three. Screen Printing Ink
In addition to silk screen, the screen printing ink in the consumption of materials, ranked second. Mainland of China Screen Printing Ink Market development can be said to be a scratch, from small to multi-process. In general, the Mainland of China Screen Printing Ink Production relatively complete, both substrates for a variety of solvent-based inks, there are the latest water-based ink and UV curing inks. However, high-quality, high-precision printing products screen printing inks and special purpose screen printing ink (eg, PCB electronic circuit boards for industrial use ink, etc.) still need to import large quantities of imported products, with annual sales of about 3 billion yuan.
4. Screen Printing Technology has improved continuously
After the reform and opening up, foreign various advanced network printing technology, equipment and materials into the Chinese market, in order to screen printing technology to the public and raising the foundation. Appeared in a number of advanced technical level of the screen printing business and Screen Printing equipment manufacturers. In 1999, Hangzhou, Kay & co printed the "Silk drama Facebook" has become the first time China Screen Printing & Graphic Imaging Association (SGIA) Awards and competitions in the award-winning products; after the Shenzhen High-Star Corporation Ceramic Decal porcelain, also in 2002 and 2004, twice won the Gold Award for SGIA; in September 2003, at the Asia-Pacific Screen Printing & Graphic Imaging Association (ASGA) boutique appraisal organized by screen printing, our country there are six product won a gold medal, 10 received Silver and 14 Bronze Award, of which 6 are line screens of 120 lines / inch and above the fine print. This shows that our screen printing skills did improve very quickly.
Screen Printing in the packaging industry, showing vitality
1. The rapid growth of packaging industry, will promote the expansion of screen printing market. According to statistics, China's 90 years since the last century, the packaging industry with an annual 20% to 30% per year, to 2000, China's packaging has already reached 29 billion U.S. dollars GDP. As the packaging industry, screen printing technology in the packaging and printing of the application of the proportion is also growing. In recent years, printing technology, along with the continuous development of screen printing in order to occupy its own unique strengths of a large number of packaging and printing market, and showed steady growth. Screen Printing Technology is increasingly applied to the plastic flexible packaging, paper packaging, metal packaging, glass packaging, leather package, label, tag, label, light box advertising, vehicle advertising, banners and other processed produce.
2. The emergence and development of related industries expanded screen printing applications. Electronics and the rapid development of the financial industry will drive the card printing industry. In recent years, China developed a number of high-tech industrial policy, Golden Card Project, one of them. With the commencement of the project, manufacturing card industry will have sprung up everywhere, which will be another new screen printing applications.
Disc Printing Screen Printing area protruding into the new army. With the advent of the digital age, CD-ROM has become an indispensable civic life of the items, the community's growing demand for it. China is the world's most populous country, consumer power, CD, VCD, DVD production is also highest in the world. In the printed text and images on CD-ROM, but also for screen printing business opportunities.
Screen Printing will also show off their capabilities in the field of security printing. With the increased competition in the market economy, the consumer market in recent years, a gradual increase in counterfeit and shoddy goods, tobacco, beverage, pharmaceutical, food, counterfeit packaging often makes very hard to detect directly endanger people's health and lives. This makes people of insight at home and abroad have developed security products, security printing quietly born. Anti-counterfeit ink coarse particles generally require soft reduction, the most appropriate use of screen printing. The safety of commonly used anti-counterfeiting printing ink are: UV fluorescent ink, magnetic inks, photochromic inks, phosphorescent inks.
3. Screen Printing and traditional printing methods, the combination of digital printing to make up for deficiencies in other printing methods to enhance print decoration and artistic effect of attracting customers, increasing the screen printing needs.
At present, the screen printing and flexographic printing, or the main lithographic printing combination. In the combination of printing, screen printing can be printed lottery, lottery scratch card covered with ink, can make packets, cosmetic packaging appear embossed, frosted, refraction, Ice, gold, silver and other effects, screen printing ink can be used to enhance the class card's security features, but also can be used in batteries, paint, labels used in relatively harsh environment products. Digital Printing Screen Printing also brought about revolutionary change, contributed to the rise of digital printing screen printing capabilities, so that it can get better press, printing accessories and ink, which makes screen printing products have a higher quality. Computer pre-press processing system, Color desktop publishing systems, digital computer plate-making, electronic imaging technologies, has been cited network printing industry.
4. Screen Printing equipment, high precision, high-quality materials, screen printing screen printing technology to provide a guarantee of quality. Screen Printing Equipment to the development of high precision. The current screen printing presses have entered the field of precision are to high-precision, automated direction. The next few years, Screen Printing Equipment will continue to be high, medium and low-grade co-existence of a situation, but their market share will gradually change, low-end products will be gradually reduced, high-end fully automated production line will be gradually increased. Screen Printing in China before the high-end market is Europe and the United States occupied Japan's products, but in recent years, domestic equipment, high-tech content in Europe and the United States are catching up. For example, the Shanghai Yang, Shanghai, three Indian production of roller automatic presses, close to Europe and the United States in function of the printer on, the price is only one-third of the latter.
Screen printing materials to high-quality direction. Water-based ink, the number of high mesh screen, high-resolution light-sensitive glue is the future direction of development. The majority of solvent-based inks are pollution, water-based ink non-toxic, tasteless non-polluting, in compliance with international environmental requirements. Previous light-sensitive adhesive in high-end market occupied by foreign products, and now some domestic manufacturers also began producing high-resolution, high rates of resistance to Indian-based photosensitive resin glue. Made in the low-end screen can basically meet the current needs of the domestic market, but still has to import high-grade wire, R & D of high mesh screen will be the future direction of development.
Conclusion
In short, as China's packaging industry continues to grow, consumers increasingly demand for packaging, for packaging and decoration printing quality requirements have become more sophisticated, which will undoubtedly result in an expanded market for screen printing needs. Screen printing technology will be more widely used in packaging printing, I believe that screen printing will be in the packaging industry has good prospects for development.
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