Digital Printing and Screen Printing (2)

1. Digital Printing and Screen Printing Advertising

In recent years, the name of digital printing has become more and more familiar, and the application of digital printing has become more and more widespread. From colorful and colorful light box advertisements to colorful body advertisements, there is no shortage of digital printing technology.

(1) Although digital printing technology has entered the market for only a few years, it has been developing rapidly. Can be divided into: color inkjet printers, large computer inkjet printers. Electrostatic printers (also called computer photo systems).

Color ink-jet printers are characterized by cheaper prices and higher precision, but most of them use water-soluble inks. Because inks and consumables have poor weatherability, they are suitable for indoor use. Compared with other printing technologies, this type of printer has a slower speed and there are certain difficulties in mass production.

The main feature of the large-scale computer inkjet printer is that it has a large print size, generally up to 5 meters in width, and most of these machines use a gun structure and use four-color spray guns to spray ink directly onto the substrate. However, the clarity of this kind of machine is relatively low, generally between 9-18 (dpi) on average, the screen made is suitable for long-distance viewing, poor viewing at close quarters.

Electrostatic printers, also known as computer photo systems, are painting systems that use electrostatic principles. The main features of this type of printing press are its high accuracy, up to 400 dpi, fast speed, color saturation and layering, and it can be used indoors and outdoors.

(2) Screen printing advertisements are different from those of film, television, radio and periodical advertisements. Its forms are various and varied, such as outdoor poster advertisements, light box advertisements, car body advertisements, banner advertisements, inflatable advertisements, banner advertisements, storefront advertisements, etc. . The above advertisements have their common features.

Screen printing advertisements are often large-format, generally full-page size, and the largest layout in practical use is 3.8m × 8m. Screen printing advertisements are mostly used for outdoor postings and are placed in the eye-catching places of people's activity space, deliberately catering to the flow of people. Visual effects; the materials used for screen printing advertisements are heavy, and some are even made in three dimensions. Many advertisements are printed on stickers, light boxes, plastic sheets, glass, or other plates, and some are made into three-dimensional advertisements.

From the types and characteristics of screen printing ads mentioned above, it can be seen that other advertising media can hardly replace its position. When the development of online media is in full swing today, screen printing advertisements that are active in the direct space environment of people's daily lives have strong vitality.

2. Digital printing and screen printing

(1) Fabric jet printing is a new technology that has been developing rapidly for the past 10 years and is the most challenging traditional printing technology. Its basic principle is to pass a pigmented ink under pressure or piezoelectricity in accordance with a predetermined array. The nozzle is continuously sprayed onto the printed fabric, and the process of forming the pattern by the computer color separation system is also called non-contact non-contact printing or digital printing. Compared with the traditional printing method, it has the following advantages: abolishing the complex screen-making process; saving a large number of screen printing plate materials and equipment; wide spectrum, no restrictions on the number of sets; the entire production process is in line with the century's "green" theme. However, the current problems in digital printing are low speed, expensive ink, and high cost.

(2) The European Association of Screen Printing Associations (FESPA) held a digital printing research conference in Barcelona, ​​Spain in 1999. Most people no longer see digital printing as a threat to fabric printing, but as an opportunity. Think that "the success of digital inkjet printing system will be a revolution in the printing industry."

The emergence of digital printing has a special significance for the printing of different textiles, especially for wide-format digital image printing, which makes up for the lack of screen printing.

(3) Over the years, screen printing has adopted advanced technologies such as computer color separation, laser plate making, and wax-jet plate making. It has greatly improved in adapting to high-quality, small-batch, multi-species, and fast delivery. The current large number of screen printing has the advantage of digital printing.

With the continuous improvement of people’s living standards, the popular cycle of fabric patterns and clothing styles is getting shorter and shorter. With the individualization and fashion of clothing, the variety of clothing and fashion colors and the small amount of printing have become the development trend. To this end, textiles, clothing, printing and dyeing, dyes, auxiliaries and other production, design, and research institutions should pay attention to all kinds of digital printing information, make timely decisions, and develop domestic digital printing machines and supporting inks, dyes, and dyes as early as possible. Agent.

In short, digital printing and screen printing have both a competitive side and a complementary side. Screen printers should seize the opportunity to use digital technology to develop screen printing and meet the challenges.

Source: "Printed Materials in China"