UV offset printing ink refers to the ink that is instantly cured by UV light irradiation. The main components of UV offset printing ink include pigments, oligomers, monomers (reactive diluents), photoinitiators and various auxiliaries. Among them, resins and reactive diluents play the role of fixing pigments and providing film-forming properties; pigments give ink moderate color and covering power to the substrate; photoinitiators are required to absorb photons to initiate polymerization under the interference of pigments.

Now, more and more factories use UV flexo ink, mainly because UV flexo ink has good printing suitability, high printing quality, bright and bright ink color, suitable for fine product printing.

UV offset printing ink is a high viscosity slurry fluid. The resins used in the production of offset printing ink binders mainly include rosin-modified phenolic resins, alkyd resins, and petroleum resins.

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