Screen printing features

Screen printing has many characteristics. The most fundamental point is the strong adaptability of printing. Therefore, it is said that printing can be performed on all substrates with different materials and surface shapes, except that air and water cannot be printed. The size of the printing area is limited. Compared with other printing methods, screen printing has the following features.

1, low cost and quick results. Screen printing can be either mechanized or manual, and its investment can vary from thousands of dollars to individual manual production, and to thousands of yuan for the construction of a modern screen printing plant. Since the cost of equipment and materials required for this printing method is lower than that of other printing methods, the plate making method and printing method are also relatively simple. Therefore, the interests of the people of Xiagang are particularly caused and the opportunity for re-employment is created for them. Simple printing that can't be completed by plain printing, embossing, and gravure printing can be done by silk screen printing. Screen printing can be divided into industrial screen printing and art screen printing. Fine art screen printing can be used to print exquisite prints and copy valuable oil paintings. Its products are bright in color and thick in ink. The strong sense of the picture is beyond the reach of other printing methods.

2, to adapt to the printing of irregular substrates surface. The screen version is flexible and can be printed on curved surfaces, spherical surfaces, or uneven surfaces, such as various glassware, plastics, bottles, lacquer, woodware, etc., in addition to printing on flat surfaces. It cannot be printed on plain printing, embossing or gravure printing methods.

3, strong adhesion, good ink. Due to the characteristics of the screen plate, the ink passes through the screen hole and directly adheres to the surface of the substrate. According to the requirements of the material of the printing material, it can be printed by ink, or can be printed by various paints or color pastes, glues, and the like. Other printing methods are limited due to the fine requirements of the pigment particle size in the ink.

4, thick ink layer, strong sense of three-dimensional. In the four major printing methods, the ink layer of the screen printing is thicker, and the graphic texture is rich in texture and strong in three-dimensional sense. The offset printing ink layer is 1.6 microns, the embossing is about 5 microns, the gravure ink layer is about 12.8 microns, the flexographic printing ink layer thickness is 10 microns, and the screen printed ink layer thickness can reach 60 microns. Thick film screen printing ink layer thickness can reach about 1 mm. Screen printing is used to print Braille. The thickness of the ink layer can reach 300 microns. The method is through braille machine, according to the original made directly on the screen plate positive figure, and screen printing foam ink printing, immediately heated and dried, that can form a braille.

5, strong light resistance, good color. If the comparison is made using the black ink's maximum density measured after one impression on the coated paper, the offset printing is 1.4 embossing, the 1.6 embossing is 1.8, and the screen printing maximum density value can reach 2.0. Web prints are extremely light fast and their color performance is much better than offset printing. In the offset printing, if you want to use the proofing mechanism to take the opaque surface covered by white, you have to rake it in the same place 3-4 times, and screen printing only prints once. In terms of the color quality of printed products, the texture and color of screen printing far exceeds that of offset printing, even for the same color printing product with a rather light color.

The ink thickness of the screen printing may be thicker or thinner. For example, in the four-color screen printing screen printing, each color ink layer is not thick, but thin ink layer. The method of thinning the ink layer is to make the screen printed ink layer thinner or even thinner by changing variable factors such as printing speed, ink viscosity, screen thickness, squeegee shape, printing pressure, and ink deposition angle.

6, wide range of substrates. Can be paper, cardboard, wood, metal, textiles, plastics, cork, leather, fur, ceramics, glass, decals, transfer paper, and a combination of various materials, so the screen printing besides the printing industry Ben Zhi Zhou Everything is widely used in the printing, dyeing, clothing, signage, radio, electronics, ceramics, and packaging and decorating industries.

7, printing format large. Now that flat printing 'embossing, gravure printing and flexo printing are all limited by the size of the printing format, screen printing can be large format printing. In particular, with the rapid development of the advertising market, the proportion of screen-printed large-scale outdoor advertising prints in the advertising market is increasing day by day. Now the largest format of screen printing outdoor advertising can reach 2.2x3.8 meters and 2.2x4 meters.

Source: China Metal Products Network