What Is a Screen Printing Exposure Unit?
A Screen Printing Exposure Unit is a device used in the screen printing process to expose photosensitive emulsion on a screen, creating a mesh-like pattern of open areas. It is a crucial step in preparing screens for screen printing.
This device utilizes various light sources, such as ultraviolet (UV) exposure units or laser exposure units, each with its unique characteristics. UV exposure units are known for their cost-effectiveness and quick exposure times, while laser exposure units provide high precision and quality in screen prints.
The process involves mounting the screen with applied photosensitive emulsion on the exposure unit. The selected light source, whether UV or laser, is directed onto the screen. The photosensitive emulsion on the screen blocks the light, resulting in the creation of the desired mesh-like open areas, which are essential for the screen printing process.
Screen Printing Exposure Units play a critical role in achieving precise and high-quality screen prints by controlling exposure time and patterns of the photosensitive emulsion. They are indispensable tools in the screen printing industry.