Comparison of inkjet and screen printing methods

Inkjet printing (ink-jetprinting) is a non-contact, non-pressure, non-plate printing and replication technology. It has the common characteristics of non-version digital printing and can realize variable information printing. Screen printing (screenprinting) printing plate is mesh-shaped, the ink on the printing plate under the squeezing of the squeegee under the squeezing of the plate through the hole part of the printing to the substrate, and then complete the printing method of printing.

1. Introduction of two printing methods

1. Inkjet printing

There are many inkjet printing methods, and the basic principle is to input the graphic information stored in the electronic computer to the flatbed printer first, and then through a special device, under the control of the electronic computer, the nozzle sprays the mist on the surface of the substrate The ink droplets are directly imaged on the surface of the substrate according to the charge effect and become the final printed matter.

The basic principle of inkjet printing is to first generate small ink droplets and then guide them to the set position. According to the difference of inkjet system, it can be divided into continuous type and on-demand type.

Continuous inkjet printing (CIJ), whether printed or non-printed, continuously generates ink droplets in a flowing manner, and then forms an image by electric field deflection transfer, and finally recovers or disperses the non-printed ink droplets . On-demand inkjet printing (DOD), ink droplets are generated only in the printed part. Dedicated to printing excellent quality images, suitable for packaging color images, textiles and large format billboards, it is an ideal choice for full-color, high-precision printing, and printing quality is its most important consideration.

According to its printing color, inkjet printing can be divided into black and white inkjet printing and color inkjet printing. Black and white inkjet printing uses a single ink, the machine structure and ink system are relatively simple, and color inkjet printing is relatively more complicated.

2. Screen printing

Modern screen printing technology is to use a photosensitive material to make a screen printing plate through photo-engraving (making the screen holes on the screen portion of the screen printing plate through holes, but not the screen holes on the non-graphic portion) ). When printing, the ink is transferred to the substrate through the mesh of the graphic part through the squeeze of the scraper, forming the same graphic as the original.

Screen printing is composed of five major elements, namely screen printing plate, squeegee, ink, printing station and substrate. The equipment of screen printing is simple, the operation is convenient, the printing and plate making are simple, the cost is low, and the adaptability is strong. Screen printing has a wide range of applications. There are also many common printed products, such as color oil paintings, posters, business cards, binding covers, commodity signs, and printing and dyeing textiles.

Second, the comparative analysis of the two printing methods

Inkjet printing is another new universal printing technology after screen printing. Like screen printing, it has a wide range of printing materials and can be printed on different shapes and surfaces of different materials. It has strong adaptability. At present, the technology is developing very rapidly and the market The ever-expanding new printing methods show great development prospects. However, as an old-fashioned printing method, screen printing also shows its strengths in the development process, especially the unique advantages of screen printing in circuit board printing. In addition, as more and more new technologies are used in screen printing The application of screen printing makes the screen printing look old and new, still occupying the vast market.

1. The competition between the two printing methods

First, there is competition in the application field and product market. Based on the advantages of the two printing methods, it is not difficult to find that they are increasingly competitive in the printing market. First of all, some large-format printing fields compiled by screen printing are being impacted by inkjet printing. Today, the largest format of the inkjet machine used in the field of large-format inkjet printing can reach 3 to 5m. Products, outdoor advertising has become increasingly prominent. Secondly, because inkjet printing has relatively small restrictions on substrates, it can be printed on a variety of substrate materials. This is a killer skill of screen printing compared to other printing methods. Inkjet printing has this advantage and will undoubtedly The field of application of screen printing has an impact. Thirdly, inkjet printing is a fully digital printing, completely detached from the tedious procedures of the traditional printing process, which can minimize the time to market of products. This printing method will be the best for products with high time requirements. select.

In addition, competition for printers. Inkjet printing has its unique market, such as lottery printing, personalized printing, etc., which is unmatched by screen printing. While inkjet printing is in these fields, it has extended its application to the territory of screen printing. Gradually favored by the majority of printers. As mentioned above, in the aspect of large-format printing, with the prosperity of the market economy and the expansion of commodity circulation, the inkjet printing of outdoor advertising will show a significant upward trend. The advantages of fully digital inkjet printing, personalized printing and off-site printing will inevitably attract more printers to adopt it. Therefore, it can be said that while competing for the product market, their competition is also inseparable from the competition for printers.

2. Complementary advantages between the two printing methods

With two methods, it can save production time and improve efficiency. Although the inkjet printer has the advantages of full digitization, short job preparation time, and quick response to the market, it is not perfect after all. A big disadvantage of inkjet printing is that it is not suitable for large-scale printing, but only for less than 1000. Zhang's printing, therefore, the technical advantages of screen printing in mass printing are revealed to the fullest. This method can be used when determining the personalized printing of product packaging, that is, using inkjet printing for small batch printing, investing in the market and conducting research, and selecting popular designs based on the results of the research and then mass production. Printing, which not only saves costs, but also reduces waste and time to market. The collocation described above is only an option, and of course there are other better ways to use it together.

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