UV lamp spectral peak 365nm

Sun, 07 Jun 2026 06:22:45 +0800

Out on the press, a gorgeous print only happens when the UV energy hits the mark—precisely. We build our lamps around a 365nm spectral peak because that’s the wavelength that consistently lights off the photoinitiators in offset, flexo, and screen inks. The cross-linking happens without hedging your bets. What actually matters under the hood A 365nm peak isn’t a marketing tag—it’s a real output, shaped by the lamp’s arc design, dopants, and reflector geometry. We aim for high peak irradiance at the substrate—typically 800–1200 mW/cm² depending on lamp length and reflector setup—so you cure in one pass. Power density is tuned to match line speed, and output stability stays within ±2% over the life of the lamp. That keeps density and adhesion consistent, job after job. The reflector uses a dichroic coating to pass 365nm and bounce back excess IR, cutting heat load on thin films and heat-sensitive substrates. Why this approach holds up on the floor Flashy work is only as good as the cure energy behind it. With a true 365nm peak, you get faster throughput without overcuring: pigments stay true, surface cure is even, and adhesion holds on coated papers, foils, and plastics. A stable irradiance profile across the web helps you avoid mottle, pinholes, and tack issues that creep in when energy drifts. Energy use stays predictable, and lamp replacement intervals stretch out—less downtime, fewer maintenance hours. The practical details you can’t skip Match lamp length, arc gap, and end-of-life behavior to your curing module and airflow. Check reflector focal distance and the cure window your ink needs—over-focusing can spike substrate temperature, and under-focusing can leave the surface tacky. Make sure electrical compatibility is nailed at the socket: ignition voltage and operating current have to line up with the power supply. Treat UV output like any consumable. Schedule periodic radiometer checks so you catch output decay before it shows up as defects on press.

Spectral distribution gallium lamp

Fri, 05 Jun 2026 06:49:02 +0800

Garment printers know the drill—prints that look fine come off the line, then crack after the first wash. It’s not just the ink or the substrate. Most of the time, the root cause is UV energy that never really got delivered, so the ink layer stays under-cured. Photoinitiators need the right wavelengths to drive full cross-linking. If the lamp’s spectral output doesn’t line up with what the ink absorbs, the surface can feel dry while the polymer network underneath is still weak. What actually matters under the hood Gallium lamps are built around spectral precision. They shift the peak energy away from the standard mercury bands at 254nm and 365nm, putting the punch at 385nm and 405nm. That profile is a direct match for the photoinitiators in flexible textile inks, pushing photopolymerization deeper. The lamp holds a stable peak irradiance above 1,800 mW/cm² across the active band, so you get the energy density needed to cure through the full ink film. And yes, that’s measured at the substrate plane, not out by the lamp anode. Why this fits garment work On the garment floor, the target is a deep, even cure without scorching the substrate. The gallium output profile drives cross-linking through the entire ink layer, not just the top few microns. That builds molecular integrity, and that’s what turns into wash resistance. You end up with a cure profile that can take mechanical agitation and water exposure in stride. In practice, that means fewer rejects from post-wash adhesion failure. The details that make it run Integration comes down to the reflector assembly and lamp positioning. The reflector’s dichroic coating has to be matched to the gallium spectrum so you’re not wasting energy. Check the power supply too—verify arc-start voltage and operating current against the lamp’s spec. And lock down the cure window distance; a 10mm change can knock irradiance down by more than 15%. Plan for solid thermal management at the lamp ends so spectral stability holds across the full service life.

Spectral on UV Light Lab

UV lamp spectral peak 365nm

Spectral distribution gallium lamp