Method for controlling packaging water stain marks of plastic package iron box

The invention belongs to the technical field of packaging processes, and provides a method for controlling packaging water stains of a plastic package iron box. Comprising the following steps: selecting frosted surface tinplate as an iron box material; the method comprises the following steps: printing the surface of a material by adopting malleable ink, coating matte finish oil, and then manufacturing an iron box; and after the product is put into the iron box, carrying out plastic packaging by using a BOPP (Biaxially-Oriented Polypropylene) film to obtain the product. The smooth surface of the iron box is adjusted to be the frosted matte surface by adjusting the material of the iron box and the material of the surface oil, so that the adsorption between the plastic packaging film and the surface of the iron box is reduced. Through evaluation, the adsorption effect between the plastic packaging film of the iron box and the surface of the iron box can be effectively avoided, and water stains are prevented fro