- The origin of screen printing:
Like stencil printing, stencil printing is recognized by the world as one of the ancient inventions in my country. Screen printing is gradually developed from the perforated version. It originated from the Qin and Han dynasty printing process and has a history of more than two thousand years. According to archaeologists, a considerable level of wax batik products were available in the Eastern Han Dynasty. From this process to the great cause of the Sui Dynasty, there was a great leap forward, which was to stretch the net at the bottom of the printing. From then on, the valet printing process developed into silk screen printing. By the Tang Dynasty, the dresses and dresses used in the court had been able to be printed with silk screen printing on the beautiful and delicate bee and butterfly patterns.
Second, the characteristics of screen printing:
The most widely used Open Type Rotary Screen Printing Machine in my country are the electronics industry, ceramic applique industry, and textile printing and dyeing industries. In recent years, silk screen printing has also been widely adopted for packaging decoration, advertisements, posters and signs.
Open rotary screen printing machine has the following characteristics:
- Not limited by the size and shape of the substrate. General printing can only be carried out on a flat surface, and silk screen printing can not only print on a flat surface, but also on molded products of special shapes and uneven surfaces, and can also print various large-scale advertising pictures, vertical curtains, and curtains. It can also be printed on ultra-small, ultra-high-precision items, and can also be printed on curved or spherical surfaces. This printing method has great flexibility and wide applicability. All shapes can be printed with silk screen. Screen printing is also available for those special shaped surfaces.
- The layout is soft and the pressure is small. The silk-screen printing plate is soft and flexible, and the printing pressure is small, so it can not only print on soft substrates such as paper and textiles, but also print on glass and various glass and ceramic vessels that are easily damaged by pressing.
- Strong coverage of thick ink layer. The thickness of the ink on letterpress and lithographic prints is only a few microns, and the intaglio printing is only 12-15 microns, and the thickness of screen printing oil black can reach 30-100 microns. Therefore, the hiding power of the ink is particularly strong, which can be in the black Pure white printing on paper. In addition, features such as thick ink layers can be used for printing such as circuit boards and oil paintings. Braille braille printed with foaming ink, the thickness of the ink layer after foaming can reach 300 microns. The screen printing ink layer is thick, and the printed graphics have a strong three-dimensional sense, which is unmatched by other printing methods.
- Suitable for various types of inks. Screen printing has the characteristics that any kind of paint can be used for printing, such as oily, water-based, synthetic resin type, powder and other inks can be used.
- Strong light resistance. Because screen printing can print thick ink layers, various binders and various colorants can be used, even pigments with coarse particles can be used, so it can put light-resistant pigments and fluorescent pigments in a simple way Into the ink, so that the graphics of the printed matter can maintain the gloss permanently without the influence of temperature and sunlight, and can even shine at night. Due to the strong light resistance of silk screen products, it can be used for advertising and signage outdoors.
- Flexible printing methods. Screen printing, like flat, concave and convex printing, can be used for industrial mass production. At the same time, it has the characteristics of convenient plate making, cheap price, diverse and flexible printing methods, and easy to master technology, which are unmatched by flat, concave and convex printing. Therefore, it has developed rapidly in recent years. It is not limited by the size of the enterprise. Large-scale industrial mechanization of Flat Screen Printer Factorycan be produced, as can township enterprises and individual handicrafts.
