The composition of UV ink is very different from that of traditional ink. The film-forming of UV ink is a chemical action. The monomer and polymer polymerize under the action of initiator, while the film-forming of traditional ink is a physical action. The resin is already a polymer. The solvent dissolves the solid polymer into a liquid polymer, which is printed on the substrate, and then the solvent is volatilized or absorbed to make the liquid polymerization.The substance reverts to its original solid state.

The structure of UV ink includes resin, monomers instead of solvents, additives and photoinitiators. The resin in UV ink is very different from that in solvent volatile ink. It has reactivity. It can react with a certain product in other chemical reaction process. In UV ink, it can react with monomers.

Monopolymer is a kind of low molecular weight chemical substance, which can replace solvent to some extent and reduce viscosity, so it is suitable for printing.

But in addition to acting as a solvent or diluent, it has a very important role in chemical reactions. Each component of UV ink can react chemically, because it is 100% cured, and all components will become solid through chemical reaction.

Compared with solvent ink, UV ink has a great improvement in printability and printing quality. Because UV ink is 100% solid, there is no volatile solvent, so the viscosity of the ink will not change along with the environmental conditions.

The viscosity of UV ink is stable,same as the quality of printing product . In terms of cleaning, UV ink will be put into the curing equipment for curing immediately after printing, so there are not many impurities in the printed matter, which can keep the product clean.

When making luminescent signboard, it often needs to be printed thick, and it needs to be printed many times to meet the thickness requirements. At this time, traditional ink is used to print once in the drying channel after each printing, which requires a lot of time and energy.

For UV ink ,when put into printing, drying is not required in the drying channel, it can be cured immediately after printing, which greatly saves time and energy.