Technological innovation of flexographic printing

2022-06-20
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Technological innovation of flexographic printing

the market share of flexographic printing in European and American countries is expanding, and XPS is 650 yuan per cubic meter, which will undoubtedly take the lead in all printing methods in the future. In Japan, the expansion of flexographic printing was delayed because users were too cool about quality

steadily expanding flexographic printing market

recently, it is said that the market share of flexographic printing in various countries has expanded a lot. In recent years, the output value of flexographic printing in the United States has increased at an annual rate of 7%. At present, 70% of the packaging printing market adopts flexographic printing (see GATF world ~ 6). The market share of flexographic printing in Europe has also increased. Its overall market share in printed matter is 27%. Only in the field of packaging materials, it also has a market share of about 50%

in the future, it is expected that the market share of flexographic printing will further expand in European and American countries. For example, in the whole printing market including general printing in the United States, the market share of flexographic printing is expected to increase from 18% in 2000 to 20% in 2010 (see taga2001 news letter no, 137). In the past ten years, it has increased from 18% to 20%. It seems that there is not much change. However, in the same forecast, digital printing will increase from 8 per cent in 2000 to 20 per cent in 2010. On the other hand, the market share has increased significantly. Lithographic printing has decreased from 46% to 37%, gravure printing has decreased from 18% to 15%, and relief printing has decreased from 7% to 5%

contrary to the expansion of flexographic printing market share in Europe and the United States, the Japanese market has almost stagnated in the past 20 years due to users' demand for quality, and even shrunk. However, in recent years, due to technological innovation, attention has been paid to the field from prepress to printing

at the 7th world printing conference held in Beijing in may not long ago, Robert Reich, vice president of Cyrel, also talked about the great development of flexographic printing in the future. Because its quality is no less than lithography and gravure, and the production speed has been improved, the biggest advantage is that digital proofing improves the production environment

not inferior to the quality of lithography and gravure

compared with lithography and gravure printing, flexographic printing has always been dominant in terms of labor price, equipment price and scrap rate. Recently, people are concerned about environmental protection. In this regard, the practicability of water-based ink and UV ink is recognized as superior to gravure printing

for flexographic printing, the biggest problem is its quality. In the past, the quality of flexographic printing was indeed inferior to that of lithographic printing and gravure printing. However, since the development and introduction of the digital plate based on photosensitive resin in 1995, the quality distance with other formats has been narrowed. In the past, flexographic printing has not reached the high-profile reproduction and tone reproduction required by the level. Now it can be printed by digital printing plates to a certain quality. Moreover, sometimes it can be printed with a quality higher than that of lithography or intaglio printing. The food department awarded by IOPP (in stituteof packaging professionals) annually (Ameri Star Packaging Award). Flexographic printing products often receive the best award. Of course, digital plates are used for printing this kind of printed products

the focus of competition is the production speed

the quality of flexographic printing has finally been improved to the level of equal strength with lithography and gravure printing. Therefore, the next task in front of flexographic printing is to improve the production speed. Various technical improvements have been made in this regard

in printing engineering, for example, by automatically installing rollers and sleeves, and cutting from round steel, square steel and 6 angle steel, the replacement time of the operation is accelerated. When this technology is combined with the automatic cleaning device, everyone in the printing machine can undertake various operations at the same time, and the overall operation efficiency is greatly improved. In addition, when using a 10 or 12 unit printer, the remaining 5 to 6 units can be set during the printing period of 5 to 6 units. The improvement of registration control using video technology also contributes to the improvement of printing speed

in the field of layout design and prepress engineering, we are turning to digital workflow 3, and then turning the hand wheel to seek to greatly improve the speed

in terms of hardware and software, standard work platforms are also widely used. The price of work terminals is also declining, and the processing speed is getting faster and faster. Application software has also become very powerful. Compared with the very expensive special system a few years ago, it has produced high-quality products with complete functions. Due to the comprehensive digitization of prepress engineering, the previous manual operation of skilled workers required hours of overprinting and continuous drying, which took only a few minutes to complete

relying on the improvement of advanced digital proofing

one of the strengths of flexographic printing in the past was the use of a large number of spot colors. However, until today, the only way to correctly grasp the color proofing is the analog proofing like cromalin. This method requires negative pictures, and proofing requires skilled labor. It is a labor-intensive operation, which is quite time-consuming. Moreover, in the process of printing, the dot increase is very serious, so it is necessary to make two negatives that are different from the negatives for proofing and printing plate. It is uneconomical in terms of time and cost, and at the same time, it becomes a factor causing redundant engineering variables

until recently, it began to replace analog proofing with digital cromalin inkjet continuous proofing system. Firstly, it is characterized by good reproducibility and stability of color and tone. In addition, the color reproduction field is wide, and it can accurately display the spot color tone, which is also a great advantage

various manufacturers provide color matching functions with very high accuracy at a very low price. Moreover, due to the variety of printing specifications and the low price of equipment, the proofing machine for Remote Proofing is also suitable

mature and practical ctp

in the field of flexographic printing, CTP has been developed and introduced. CTP can contribute to providing the quality required for flexographic printing, and also achieve great results in shortening the production period of prepress engineering

although the first generation CTP has experienced three years of actual operation performance, its equipment cost is really too high because it is a new technology. Therefore, its market demand is only limited to professional plate making units that can maintain and obtain high priced equipment costs and work volume. However, recently introduced and published small flexible CTPs of Barco and Creo Scitex are cheaper, which undoubtedly attracts more printing enterprises to introduce CTPs. It is estimated that the plate making companies specialized in digital imaging will also gradually introduce CTP

for example, new technologies have been selected in the workflow from designers to plate making professionals, as well as in the production engineering of printing companies, so as to improve productivity. In the future, we will explore the market by strengthening the communication network among enterprises including users, with the goal of further shortening the production period. In fact, this trend has begun. (printing art)

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