The first purpose of a humidifier is to prevent electrostatic interference and avoid ink misting (fly ink).
In dry conditions, such as during autumn and winter, the printing materials and printer components can easily generate static electricity. This static electricity affects the ink droplets ejected from the printhead, causing ink misting. Installing a humidifier increases air humidity, which reduces static electricity buildup, allowing the ink droplets to land precisely at the designated positions on the material and ensuring clear patterns.
The second purpose is to protect the printhead and reduce the risk of clogging.
The printhead is the core component of the printer. In a dry environment, the ink droplets on the surface of the printhead cure faster, which can lead to clogging. The function of the humidifier is to slow down the curing rate of UV ink on the printhead surface, reducing the risk of clogging and extending the service life of the printhead.
The third purpose is to prevent deformation of printing materials and improve adhesion.
In dry climates, some materials, such as acrylic and KT board, become brittle and prone to warping or curling. The humidifier helps maintain a moderate humidity level, allowing the materials to absorb some moisture and become flatter.
While the humidity level in a UV printer workshop is certainly important, it should not be too high. We recommend maintaining workshop humidity between 15% and 60%. Excessive humidity can cause a series of adverse effects on electronic components and ink curing.