UV lamp for vitamin D synthesis

Wed, 24 Jun 2026 07:57:30 +0800

On a garment line running 80–120 m/min, the press doesn’t wait for anything. If the UV lamp doesn’t lock the ink down instantly—full cross-linking, no half measures—you’re looking at smeared print, a stack that builds up, and a line that stops. This isn’t a nice-to-have “second-level” cure. It’s a spec you can measure, and you have to hit it.

What matters under the hood

We start with a high-pressure mercury vapor lamp and tune it to the photoinitiator window. Hit 365 nm to drive penetration deep into the ink film, then add 385 nm to speed up surface cure without pushing you into overcuring. Peak irradiance hits 12 W/cm² at the substrate, measured at a 10 mm working distance. Power density stays even across the arc, so the dose at the edge tracks the center—no thin spots. For typical textile UV inks, we spec cure speed above 100 m/min, with delivered energy density in the 600–800 mJ/cm² range. A dichroic reflector keeps the output tight in the right spectral band and cuts down IR heat. Ozone-free running keeps the lamp head cooler, and output stays within ±3% over 2,000 hours.

D on UV Curing Spot

UV lamp for vitamin D synthesis

What matters under the hood