[China Packaging Network] Screen printing has been rapidly developed in the 1980s. Screen printing has been closely linked with people's lives after so many years. Manual screen printing has now almost been associated with a large number of industrial products. Why is the status so important? This is a feature of it. Let's learn about it together.
1. Wide range of printing
Manual screen printing has great flexibility and wide applicability. With screen printing, it is possible to print on plain, specially shaped substrates or even irregular surfaces. In addition, the screen printing printing format is relatively broad, it can be a large area of ​​printing, printing format up to 3m × 4m or more, you can also print on ultra-small, ultra-high precision objects. Because the screen printing plate is soft and flexible, and the printing pressure is relatively small, screen printing can be selected when it is required to print on flexible substrates such as textiles and various glass and ceramic vessels that are easily damaged by pressurization.
2. Adjustable range of ink layer
Prints printed using letterpress and offset printing have a thickness of only a few microns, and gravure printing is 12 to 15 μm. Compared with them, the ink layer thickness of manual screen printing is relatively wide: Under normal conditions, the ink layer thickness is about 10 ~ 20um; the thinnest is up to 5um; and for special thick film printing, the ink layer will exceed 1000um. The thicker screen printing ink layer makes it more suitable for printed circuit boards, oil paintings, and textile printing. In addition, since the hiding power of the ink is particularly strong, pure white printing can be performed on a completely black paper.
3. Applicable to various types of ink
The wide range of inks that can be used for manual screen printing has gone beyond the usual definition of ink, including pastes, pastes, paints, adhesives, and solid powders. Therefore, screen printing inks are sometimes referred to as "printing materials." In addition, compared with other printing methods, the screen printing does not require very high precision for the pigment particles in the ink, so long as the ink and the coating that can pass through the mesh fineness can be used.
4. Good outdoor performance
Since the screen printing is applicable to a wide range of inks, it can use inks incorporating light-fast pigments or fluorescent pigments, so that the graphic images of prints can be kept from being affected by temperature and sunlight, and can even emit light at night. This feature determines that screen-printed products can be used outdoors for advertising and signage.
5. Not subject to business restrictions
Manual screen printing, like lithography, letterpress printing, and gravure printing, can be carried out on an industrial scale. At the same time, it has other three printing methods unmatched plate making convenient, cheap, flexible and diverse printing methods, technology is easy to grasp the characteristics, so you can not be limited by the size of the company, even if individual operations are feasible.
The above is the introduction of the features of manual screen printing. I hope everyone can understand it. For more information, you are welcome to continue to pay attention to China Packaging Network!