What should be paid attention to when screen printing
1 The screen is selected according to the type of web printing substrate at the price of ribbon printing and printing. When selected, it is selected according to fiber fabric, paper product, glass, ceramics, metal, plastic, wood products, electronic products and so on.
2 According to the nature of the printed ink paste, different inks of different screens have different adaptability characteristics. Therefore, when selecting the screen printing mesh, it is necessary to consider the drying time of the ink and the vividness of the color, and the ink absorbing ability of the substrate.
3 According to the printed material and performance of the screen, the material and physical properties of the screen itself should be considered when selecting the screen. The corresponding screen is selected according to different suitability as the material used for printing.
4 According to the printing webbing, the screen should be selected. When selecting the printing speed, the printing pressure, the printing durability of the printing plate and the absorption capacity of the printing material should be taken into consideration.
Several ways of choosing a mesh have been introduced earlier. However, the selection of ribbon printing and printing of the screen is not a simple problem. In addition to considering the screen, it is also necessary to consider the various constraints associated with the cost of the ink, the substrate, and the like. Choose the method and pay attention to the relevant problems, choose the appropriate screen to be handy. When choosing a wire mesh, you should pay attention to the following aspects.
1 First consider the ease of ink passing through the screen. Generally consider this aspect when choosing. The intermediate color ink uses a high transparency ink, the tremor material is relatively fine, the ratio of the tremor material carrier is large, and the ink passability is good. The ink can also pass well when using a high mesh screen. Generally, the plastic ink has good passability, special-purpose ink, and ink with high diastolic concentration, although the fineness is relatively poor in passability.
2 If the ribbon printing, the ribbon printing pattern, and the surface of the printed substrate are rough, a lower mesh screen is generally used. Such as leather, canvas, foam sheet, wood and other materials printed. Since the surface of the substrate is rough and the ink absorption is strong, a mesh having a lower mesh size is used to ensure a sufficient amount of ink passes.
3 Select the screen according to the fineness of the original text. Contrary to the above, in general, fine lines are required to select a high mesh screen.
4 Select the screen to consider the cost. Under the premise of meeting the printing requirements, try to use the lower price screen.
Previous:How to choose a wire mesh?