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The Process And Application Of Screen Printing In Printing Factory

Screen printing is a kind of hole printing. It is known as the four major printing methods together with flat printing, embossing and gravure printing. And is a common printing method in major printing factories. Hole-plate printing includes transcribed plate, perforated plate, ink-jet printing and screen printing. The principle of hole-plate printing is that when printing a printing plate (a hole that can pass through ink is made on the base of a paper film plate or other plate), the ink is transferred to the substrate (paper, ceramics, etc.) through the hole of the hole-plate through a certain pressure to form an image or text.

During printing, the ink is transferred to the substrate through the mesh of the image and text part through the extrusion of the scraper to form the same image and text as the original. Screen printing equipment is simple, easy to operate, printing and plate making are simple, low cost and strong adaptability. It has a wide range of applications. Common prints include: posters printing, color oil paintings, business cards, binding covers, commodity signs, and printed and dyed textiles.

Transcription printing, the simplest form of hole printing, began in the late 19th century. This kind of printing is to make a stencil plate on a specially made stencil paper through a typewriter or an iron pen, and print on the stencil plate with an ink roller. The ideal printing effect can be obtained on the substrate. In hole printing, screen printing is the most widely used.

Screen printing is used to stretch the silk fabric, synthetic fiber fabric or metal wire mesh on the screen frame, and make the plate by manually carving paint film or photochemical plate making. Modern screen printing technology is to use photosensitive materials to make the plates (making the screen holes in the image and text part of the plate as through holes, but not the screen holes in the image and text part blocked) oil paintings, prints, posters, business cards, binding covers, commodity packaging, commodity signs, printing and dyeing textiles, glass and metal and other plane carriers.

In the electronic industry, the share of screen printing technology is as high as 90%. For example, to produce a TV set, many screen printing technologies are needed, such as switches, operation panels, display screens, image corrosion protection, printed circuit boards, etc. It can be said that without screen printing, there would be no television and no electrical products. It can also be said that without screen printing technology, aviation, navigation and aerospace industries would not develop. The LCD screen of super-large and ultra-thin wall-mounted televisions, which represent the future development trend, must also be screen printed. It can be seen that the importance of it is extraordinary.

Screen printed integrated circuit (IC) is a circuit with very small volume and very light weight. The so-called integration degree refers to how many transistors can be made on a chip of a certain size. Now the 16-megabit and 64-bit transistors have been solved, and the IOO-megabit transistors will soon be commercialized. In recent years, the United States, Japan, the United Kingdom and other countries are developing the sixth generation of computers. Through computer, it will have the functions of thinking, analysis, judgment, and fuzzy information processing like the human brain. The thick and thin IC used in this kind of computer is made by using screen printing thick film technology. Its conductor, electrode, dielectric, resistor and resistance protective layer are all made by screen printing process. We can say that screen printing technology is not only high-tech technology, but also the products made by screen printing directly serve high-tech.

Glass screen printing is one of the important fields in the screen printing industry

Glass screen printing refers to the use of screen printing plate and glass glaze to carry out decorative printing on glass products. Glass glaze, also known as glass ink and glass printing material, is a paste printing material mixed and stirred by colorant and binder. The colorant is composed of inorganic pigment and low melting point flux; Binder is commonly known as plywood in the glass screen printing industry. The printed glass products should be fired in the furnace at 520~600 ℃, and the glaze printed on the glass surface can be consolidated on the glass to form colorful decorative patterns. If silk screen and other processing methods are used together, better results will be obtained. For example, using polishing, carving, etching and other methods to process the glass surface before or after printing can double the printing effect.

The application and market prospects of screen printing flat glass are widely used in every corner of people’s life: you can easily find them in the display window, building space partition, building appearance beautification, car windshield and mosaic glass and other places. At the same time, they are also widely used in furniture decoration and game tools, as well as countless decoration and artistic creation. Screen printing has also become a part of the creative design of glass manufacturing. People can print color images directly onto the glass surface through screen printing. In addition, it can also be used to temporarily cover the non-graphic part of the glass surface, or print preservatives and other additives in some areas of the glass surface, so that it is not affected by the etching or sanding process. On the other hand, it can also directly screen special ink to produce etching or sanding effect. Sometimes. People will also use the strong covering ability of screen printing, such as printing a thin layer of conductive material on the glass, to make anti-ice devices for windows.

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