he basic UV LED emits energy in these two ranges, but its intense emission at short wavelengths makes it particularly suitable for coatings and thin ink layers. Highly absorbent materials, such as adhesives and screen inks, are better formulated for long-wave light.

 

 

 

Long wave curing of trigger. The UV curing machine for curing these materials includes LED irradiator and host. This UV curing machine can emit different wavelengths of light according to the different LED chips. It can also cope with tables while curing UV materials.

 

 

 

Curing of the layer.

 

 

 

Many very special applications, such as curing a large number of materials containing titanium oxide as a pigment additive, or curing through plastics or glass, require long-wave curing, because these materials almost completely hinder short-wave curing.

 

 

 

Most UV curing involves two ranges of wavelengths working at the same time. Short wavelength works on the surface and long wavelength works on the deep layer of ink or coating. This theorem is due to the fact that the short wavelength is absorbed in the surface layer and cannot reach the deep layer. Short wave exposure

 

 

 

The surface will stick; the lack of long wave energy will lead to poor adhesion. Each formulation and film thickness benefits from an appropriate short and long wavelength energy rate.