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Packaging, printing and printing methods

e-books, e-newspapers, etc. may replace the current paper books and newspapers in the future. Electronic packaging and virtual packaging are unlikely to appear. The development of various new technologies will not affect the development of packaging and printing, but also greatly promote the development of packaging and printing. For example, the development of computer direct plate making (CTP) can better improve the speed and quality of packaging printing plate making, and better meet the requirements of high quality and short cycle. With the emergence of new technologies and products, the packaging market will be further expanded. In this sense, packaging and printing is a printing industry that will never decline

offset printing

offset printing is mainly used for printing paper-based materials. Printing on plastic film has many limitations. The printing format of sheet fed offset press can be changed, which is more flexible. At present, the printing format of most web offset presses is fixed. Its application is limited. With the development of technology, web offset press is also constantly improving. Now we have developed a web offset press that can change the printing format. At the same time, we have successfully developed a web offset press with seamless drum. The printing cylinder of this web offset press is seamless, which is the same as that of the web gravure press in this regard. The offset press is also constantly improving its printing function. After improvement and addition, in 2050, the total weight of global marine plastics will exceed the total weight of fish, and corrugated cardboard can be printed after loading some parts. After improvement and installation of UV drying device, UV printing can be printed. The above improvements continue to expand the scope of use of offset printing machines in the field of packaging and printing. Offset printing water-based inks will soon enter practical application. Here offset printing is another step

gravure printing

gravure printing has full ink color and three-dimensional feeling. Among various printing methods, the printing quality is the best. And the printing quality is stable. Long printing plate life. Suitable for mass printing. Gravure printing can print extremely thin materials, such as plastic film. However, the concave impact testing machine will be more affected. 1. The printing plate is complex and expensive, and its benzene containing ink pollutes the environment. These two problems have affected the development of gravure printing. In particular, with the reduction of a large number of prints and the increase of prints requiring low prices for short editions, gravure printing continues to lose its market

flexo printing

the main advantages of flexo printing are:

1. The equipment structure is simple and easy to form a production line. Among the three major printing equipment, offset printing, concave printing and flexo printing, flexo printing machine is the simplest in structure. Therefore, the price of flexographic press is relatively low, and the equipment investment of printing enterprises is small. At the same time, because the equipment is simple, easy to use and operate, easy to maintain. At present, most flexo printing machines are connected with processing processes such as Tangjin, glazing, cutting, slitting, die cutting, indentation, punching, windowing and so on to form production lines. Greatly improve labor productivity

2. Wide range of applications and substrates. Flexographic printing can print almost all printed matter and use all substrates. Corrugated paper printing is unique in packaging and printing

3. Water based inks are widely used. Among the three printing methods of offset printing, gravure printing and flexo printing, only flexo printing is widely used at present. What opportunities and challenges will non-toxic and pollution-free meet in the next 10 years? Dyeing is beneficial to environmental protection, especially suitable for packaging and printing

4. Low cost. The low cost of flexographic printing has formed a broad consensus abroad

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