4News -> Company dynamics
1、 Basic principle
UV curing equipment relies on * * UV light energy * * to activate the photoinitiator in UV glue, ink, three-proofing paint and light oil, trigger the photopolymerization cross-linking reaction, and the liquid material quickly turns into solid state in milliseconds and seconds; It belongs to cold light curing, without high temperature baking, low VOC emission, and far faster than hot air baking.
2、 Comparison of two main flow light sources
1. Traditional high-pressure mercury lamp (phased out)
-Wide spectrum of 200-450nm, applicable to most photoinitiators, thick coatings and deep curing of dark inks
-Short plate: 3 ‑ 10min preheating, service life only 1000~2000h, extremely high heating, ozone generation, large energy consumption, mercury pollution; Domestic policies have restricted the addition of mercury lamp curing equipment
