Q
why doesn’t regular toner ink work for exposing screen print
I'm a seasoned industrial engineer with a keen interest in machine learning. Here to share insights on latest industry trends.
Regular toner ink from printers does not work for exposing screen prints due to its formulation and the way it interacts with light. Screen printing screens are coated with a photosensitive emulsion that hardens when exposed to a specific wavelength of light. The design for the print is created by blocking light in certain areas to prevent the emulsion from hardening there, allowing ink to pass through those areas onto the printing surface. Regular toner ink is not designed to block light efficiently; it is formulated for adhering to paper, not acting as a stencil for light exposure. Specifically, the opacity of regular toner ink is insufficient to create the necessary contrast and block light effectively during the exposure process. For screen printing, special opaque inks or films are used to ensure the design areas block light completely, ensuring a sharp and precise stencil is created on the screen for ink to be pushed through during printing.
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