หลอดยูวีแกลเลียม 420 นาโนเมตร

Tue, 02 Jun 2026 01:33:30 +0800

Out on the floor, mismatched UV spectra are the quiet money-drains—rework, speed limits, and lamps that burn out too soon. The 420nm gallium UV lamp gives you a tight, targeted output band that lines up with the photoinitiators in plenty of formulations, and it cuts the ozone headache at the source. We use ozone-free quartz glass, so the 185nm line is suppressed. The result is cleaner air by the press and less demand on ventilation. What matters, technically This lamp is built around a gallium-doped mercury vapor fill, delivering a stable peak at 420nm with a narrow FWHM. That spectral purity makes cross-linking efficient in pigmented inks and thick overlays, where longer wavelengths penetrate deeper. Output is engineered for high peak irradiance at the arc length you’re running, paired with a dichroic-coated reflector that shapes the beam and keeps energy density consistent across the substrate. We call out lamp life in hours, and we measure output against a spectral radiometer—no marketing math. In offset, you need a surface cure without oxygen inhibition; 420nm gives you a fast, controlled top-down cure that keeps powder and set-off down. In flexo, the narrow band keeps heat off the thin web, which protects anilox rolls and holds dot integrity. In screen, thicker deposits cure through to the base; 420nm provides depth with less scattering, so cure stays uniform even on dark or dense substrates. The ozone-free quartz keeps operators safer, and the stable spectral output cuts variance from shift to shift. Here are the practical details. Match the lamp to your reflector geometry and the airflow in the cure module. The 420nm output is sensitive to arc gap and power density, so run the lamp at its rated input and verify with a radiometer. Expect a warm-up curve before irradiance settles, and keep the reflector and lamp window on a cleaning schedule to hold peak performance. Compatibility depends on the cure station design—confirm arc length, base, and connector before you swap.

420 นาโนเมตร on UV Curing Pro

หลอดยูวีแกลเลียม 420 นาโนเมตร