UV lamp wavelength 365nm 420nm

Fri, 05 Jun 2026 06:23:43 +0800

On the art-tile line, you’re running decorated panels that have to come off the press with that glassy,釉面质感 finish—and the scratch resistance to take handling, grout, and cleaning without giving up. If the UV system doesn’t pull its weight, the ink surface stays tacky, the topcoat never gets the cross-linking it needs, and you end up scrapping panels that should have shipped. What matters technically We match the ink chemistry to the lamp’s spectral output. The 365nm mercury peak is what drives deep photoinitiator activation in the base layers, pushing full conversion and hardness development without surface inhibition. The 420nm shoulder gives you longer-wave penetration, so the cure profile levels out—especially where pigments or thick deposits eat up the short wavelengths. The payoff is a stable cure window: controlled peak irradiance, repeatable energy density (mJ/cm²), and an ozone-free design that keeps booth air clean and keeps reflector geometry consistent. Why it works on art tile Art-tile printing needs gloss that pops and toughness that sticks around. Run 365nm for initiation, then let 420nm even out the cure profile, and the topcoat cures into a dense network—high surface hardness, low residual tack, and better resistance to solvents and abrasion. You get that釉面质感 finish right off the line, fewer rejects, and faster changeovers because the lamp starts instantly and holds output over thousands of hours. Things to keep straight Match the lamp to the press. Offset, flexo, and screen all see different ink film thickness and spectral absorption, so reflector design and power density have to be picked per machine. And don’t skip thermal management—water-cooled or forced-air comes down to substrate tolerance and line speed. UV intensity drops as the lamp ages; keep a schedule for radiometer checks so energy density stays consistent and you don’t drift on gloss and hardness.

420nm on Smart UV Lamp

UV lamp wavelength 365nm 420nm