Several key factors about select screen printing mesh (3)
Selecting a screen printing mesh suitable for a print job requires analysis of the type of ink, viscosity, and desired opacity (ink thickness). The thickness of the ink is affected by the thickness of the screen and the area of the opening. A quick way to estimate the thickness of the ink is: the ratio of the screen thickness X open area in microns. Other factors to consider include the subtle levels of the original image and the accuracy of the final product and durability requirements.
Screen printing materials and equipment twill structures are generally used for meshes that are too thick to be 1:1 woven. The diameter and mesh size of such a mesh requires that the braided structure be 2:1 or 2:2 for textile and industrial applications. These applications require long-lived durability and require a thick adhesive or glue layer, but do not require subtle levels. Therefore, twill weaves are used for jobs that require extremely opaque and require a large amount of coating. Due to the impeded ink flow, screen interference is greater, and the substrate is more in contact, and twill weave is the worst choice for printing fine levels. The net manufacturer will set a standard for each of their screens, specifying the tolerance of the mesh, the thickness of the screen, the size of the opening and the percentage of the area of the opening.
The particle size or viscosity of the ink or other material should be considered when selecting the screen to ensure proper ink transfer. Understand the required ink thickness and select the appropriate screen according to the specifications provided by the manufacturer. Remember to use the quick estimate of the ink layer thickness mentioned above to calculate the minimum dot size and divide by 4 to get the mesh opening area and select the wire mesh according to the specifications provided by the factory. Need to go through the entire production process, so choosing a suitable screen from a wide variety of options on the market may not be easy. However, if you can cooperate and communicate with the wire mesh manufacturer, you can solve many complicated problems when selecting the wire mesh.
The wire diameter/mesh of the industrial wire mesh is the central element of screen printing to provide guidance for the selection of screens for industrial use. The factors discussed in this article hope to help you when choosing a wire mesh.
The screen is the center of screen printing. These comprehensive factors determine the size of the screen opening and the ratio of the opening area, and have a huge impact on the final printing effect.