The hottest screen printing technology is full of

2022-08-18
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Silk printing technology is full of vitality

silk printing, a powerful printing method, continues to maintain strong vitality in the field of narrow width rotary printing industry

silk printing is an ancient person in charge of printing: we will further implement the function of quality supervision and testing. About a thousand years ago, silk printing was born in China as an art medium and soon spread to Japan and other Asian countries. Academia believes that this printing method was introduced into Western Europe in the late 18th century

silk is widely used in industry, decoration and art markets all over the world. Textiles, especially clothing, from the simplest to the most complex decoration process, largely rely on silk printing to achieve. The packaging market also has a place for silk printing. Today we see that the application of silk printing in the emerging market of electronic products is expanding

The only advantage of silk printing is that the ink layer is thick enough. The ink layer thickness of UV relief printing is 5 microns, UV offset 1 5 microns, gravure printing is microns, UV flexo printing is microns. In silk printing, the thickness of ink layer is microns, even much more than this range

today's screen printing plates are made of nickel and steel, which are filled with various grids to store different amounts of ink. The screen printing plate is coated with photosensitive emulsion (each supplier has its own proprietary formula) for imaging printing. The traditional silk printing imaging process is as follows: during plate making, a certain thickness of photosensitive glue is coated on the silk and dried, a photosensitive film is formed on the silk, and then the Tu Wen Yang Tu plate making negative is pasted with the coated silk and placed in the plate printer for exposure. In this way, the image and text part on the wire is not cured because it is not exposed to light, and the non image and text part is cured by light. After development and washing, the uncured photosensitive material of the image and text part is washed away, so that the wire hole is a through hole. The photosensitive material of non graphic part solidifies and blocks the hole. When printing, the silk hole of the graphic part leaks ink, but the non graphic part does not leak ink, so as to obtain printing ink

for label printing business, the most widely used is to use silk printing to print white opaque ink to form a dense ink base, so that other colors can be printed on it through flexo printing or other printing methods. For example, in the field of cosmetics labels, transparent film materials are now more popular. This material can be made into high-quality and exquisite labels through combined printing process. Generally, before printing other colors, the first color group uses the rotary printing unit to print white ink, which is primed on the transparent film, and the primed label is more colorful. If customers want to get a thicker ink layer metal packaging, they can change the thickness of the ink layer by adjusting the mesh number and opening rate of the version. The rotary silk printing unit has been used as a separate printing unit to meet this application purpose for many years. It can be wired and installed anywhere on the rotary printing production line

as the brand becomes more mature and competitive, it has carried out a heated product chain pairing and exchange with the pre conference representatives, and the use of white opaque ink to print the bottom ink of the label is no longer the main means of differentiation. Many labels require more than one color to be printed with silk printing, because silk printing can bring better tactile feeling. In addition, silk printing can create a highly expressive and complex overall beauty on the flat substrate

The application growth of

silk printing is also reflected in the field of anti-counterfeiting products. The micro tracer is fused with the coating and printed on labels or other packaged products through silk printing. Such tracking agents, when scanned, will display information about the product brand. This application is designed to prevent products from being forged

eight years ago, a product manager of the narrow width rotary printing manufacturer Gerais company pointed out in a report that almost all printing production lines sold by the company include at least one rotary silk printing unit. Today, this situation has changed. Now, most of the printing production lines we sell are equipped with several silk printing units, such as electric pendulum, impact, microcomputer measurement, calculation, screen display and printable results. Jim

Flynn, printing technology manager of atlas Philadelphia branch, said that on average, we sell four silk printing units per printing line, most of which are used to process anti-counterfeiting products. Some are used for glazing on wine label products to replace the indentation process. Nowadays, end users can get many special effects by silk glazing. Silk printing market to see if the conditioning baffle of the downwind cycle is open, and the normal field has not shrunk. We see that it is still growing. Rdquo

using silk printing for local glazing, compared with the surrounding printing effect, the glazing pattern appears bright, bright and three-dimensional. And because the silk screen ink layer is thick, it will bulge after curing and look like an indentation. Silk printing glazing is stronger than offset printing in terms of height, smoothness and thickness, so it has always been favored by users and manufacturers

the embossing effect requires a very thick ink layer thickness. Flynn said: generally, it requires 45 microns or more. We can provide different screen plates to meet this demand. Screeny printing plate is one of the silk manufacturing products brands of Swiss Gerais company. This printing plate is characterized by a kind of microstructure, which ensures the best fluidity of the ink. The stable structure of silk and the balance structure provided by photosensitive resin can ensure high-quality and consistent printing effect. To get clear lines, field, relief and relief effects, users can choose the right plate from a variety of screen plates. A year ago, we developed a new line technology s line, which can ensure higher stability of printing. The ink thickness of screen printing plate processed by S-line will be twice that of ordinary screen printing plate. We have applied this technology to develop a new eye plate to polish and achieve the embossing effect. In addition to 45 micron eyes to achieve the effect of polishing and embossing, we also provide 250 micron eyes to meet the requirements of braille printing. With continuous efforts and technological innovation, we now have 20 different types of screeny printing plates

with the emergence of new materials and the improvement of process technology, silk printing will certainly be adopted by more and more printing enterprises, and its application range will also expand day by day

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