Production method of low-haze vacuum evaporation coating

The invention discloses a production method of a low-haze vacuum evaporation coating. The production method comprises the following steps of 1, a resin conveying and mixing process, 2, a melt extrusion process, 3, a longitudinal stretching process, 4, an on-line coating process, 5, a transverse stretching process, 6, a winding slitting process and 7, a vacuum coating process. In the step 4, the surface layer of a film sheet is coated with a coating in a roller coating mode through an anilox roller, the coating comprises 80-120 parts of polyester polyol, 2-10 parts of a curing agent, 0.5-3 parts of a catalyst, 1-3 parts of an aziridine crosslinking agent, 100-150 parts of deionized water and 5-10 parts of isopropanol, a wet coating sheet is obtained, and the thickness of the wet coating is1-5 g/m . According to the production method, through the optimization of the formula of film additives and the film coating, the haze of the vacuum evaporation coating produced under the same production process is reduced, a