The invention discloses a preparation method of an
oxygen-insulation heat-sealed aluminized film, and belongs to the technical field of packaging films. According to the preparation method of the
oxygen-insulation heat-sealed aluminized film, Chinese galls and sticklac are heated and melted in a
mixed mode,
grinding is conducted at the normal temperature, thus a
solid oxygen-absorption binder is prepared, and the
solid oxygen-absorption binder serving as an intermediate binding layer of an aluminized film heat-seal layer and a core layer can achieve great oxygen resisting and
water vapor insulating effects; a biaxially-oriented
polypropylene (BOPP) thin film serve as the heat-seal layer, double bonds in the BOPP thin film can be attacked by oxygen atoms to be subjected to a free radical
chain reaction, oxides or superoxides are generated on the surface, making contact with air, of the heat-seal layer to prevent oxygen in the air from invading into a packaging material, and thus the
oxygen content in the heat-sealed aluminized film is decreased; and in addition, after the core layer surface of an aluminized
film base material is subjected to
corona treatment, the surface is porous and is carbonized, pre-oxidized wires are attached to the core layer surface, thus the porous wire-
coated surface is formed, the
toughness of the aluminized film is improved, the temperature of the heat-seal layer is decreased, and wide application prospects are achieved.