Water-based varnish is a kind of milky white printing coating which is made of water as carrier and acrylic acid resin as raw material and other functional additives. It is used to improve the surface treatment of various kinds of printed materials such as paper packaging boxes, color boxes and books. It is used to protect the ink from discoloration, improve wear resistance, moisture resistance, sensory and hand comfort, and compressive strength of the package. The printing process reduces dusting and reduces the impact of dusting on the subsequent processing and printing environment.UV varnish is a translucent printing coating made of chemical monomer or organic solvent as the carrier, epoxy resin, polyurethane as raw material and other functional additives. It is used to protect the ink from decolorization and improve the printed matter. Scratch resistance, abrasion resistance, water resistance and sensory, hand comfort and compressive strength of packaging.