Expo-NV LED Screen Printing Exposure Unit
Expo-NV LED Screen Printing Exposure Unit
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- DESCRIPTION
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An Economical Exposure Unit for Burning Screens
The Lawson Expo-NV LED is a completely self-contained table-top screen exposure unit. It is ideal for small screen printers who are either new to screen printing, working out of their home, basement, or garage. This is a plug-and-play exposure unit that is an easy, low-cost way to improve screen printing exposure. The Lawson Expo-NV LED is simple to use, economical, and better than a DIY screen exposure unit. It is shipped fully assembled, ready to use, with the entire light source contained in the main housing.
It’s compact enough to be easily moved anywhere and uses standard 120-volt, plug-in wiring. The Lawson Expo-NV LED is an economical alternative to more expensive vacuum/exposure systems. The Expo-NV LED’s dynamically balanced, focused-beam system ensures good, clean stencil definition, screen after screen. The weighted cover creates good pressure needed to hold the film positive firmly against your screen printing frame mesh. This helps produce finer detail, halftones, crisp edges, and smaller point text.
To add versatility, the Expo-NV can also be used as a light table. Simply place a high-density translucent fiberglass sheet over the glass exposure surface, flip a switch, and you now have two machines in one! If you want to save money, this is a great exposure unit—backed by Lawson itself.
Technical FAQ: Choosing the Right Screen Printing Mesh Count
What mesh count is best for printing glitter and shimmer inks?
Use a low mesh count between 24 and 86 for glitter and shimmer inks. Larger glitter flakes require very open meshes such as 24/25, 38/40, or 60/61 to allow particles to pass through without clogging. For finer shimmer inks or foil adhesives, an 85/86 mesh provides better control while still allowing adequate ink flow.
Why is 110 mesh commonly used in garment screen printing?
A 110 mesh count is widely used because it delivers a heavy ink deposit, making it ideal for bold graphics, block text, and high-viscosity plastisol inks. It is especially effective for white underbases, allowing printers to achieve strong opacity in a single pass and improve production efficiency.
What mesh count should I use for thick white plastisol ink?
A 125 mesh count is a strong choice for thick white plastisol inks. It balances ink flow and detail, offering slightly finer resolution than 110 mesh while still maintaining enough openness to prevent clogging or poor ink release.
What is the best all-purpose mesh count for t-shirt printing?
A 156/160 mesh count is considered the best general-purpose option for screen printing on garments. It works well with both plastisol and water-based inks, providing good detail retention while maintaining consistent ink coverage across most designs.
How can I achieve a soft-hand feel when printing with plastisol ink?
To create a softer print with plastisol ink, use a higher mesh count such as 196/200. This reduces the amount of ink deposited on the garment, resulting in a lighter, smoother feel. Keep in mind that higher mesh counts may reduce opacity, making this approach best for lighter fabrics or fashion prints.
What mesh count is ideal for halftones and fine detail printing?
A 230 mesh count is ideal for halftones, fine lines, and detailed artwork. It allows for precise stencil definition and clean ink transfer. For very fine detail or thinner inks, a 280 mesh count can further improve sharpness and control.
When should I use a 305 mesh screen for screen printing?
A 305 mesh count is best for ultra-fine detail, including small halftone dots, CMYK process printing, and simulated process designs. The higher thread count ensures accurate dot reproduction and prevents distortion, resulting in sharper, more professional prints.