The difference between drying principle of common ink and UV-curable ink

We all know that when we analyze two things, we will find out the differences and similarities between them. Today we have to analyze the relationship between drying and curing of common inks and UV inks. Then we must understand that there are What is the difference, what is the principle of drying and curing? For details, please see below.

Common inks and UV inks are different. First, ordinary inks and UV inks have different systems, and the physical and chemical processes that take place during the drying and curing process are also different. It is more obvious that drying and curing equipment are also different. We use the concept of drying for common inks, and we use the concept of curing for UV inks. The printing presses now have both drying and curing equipment, so we must understand more about their drying and curing principles.

Drying principle of ink: Polarized polymerization reaction takes place in the air with dry vegetable oil as a binder, changing the molecular form of vegetable oil. So that the fixation on the substrate surface and dry. This process of using oxidative polymerization to convert oil from a low molecular weight liquid to a solid macromolecular network is called ink drying. Similar to the UV curing effect, the surface gloss of the ink after drying is high, the ink film is firm and scratch resistant.

UV light UV curing principle: UV ink curing by UV irradiation, UV ink curing requires adding a small amount of photoinitiator, polymerization reaction occurs under the joint action of photoinitiator and UV light. This changes the molecular morphology to cure the ink. This reaction can be accomplished in seconds or even seconds.