Local aluminum washing holographic positioning film production process

The invention relates to a local aluminum washing holographic positioning film production process, which comprises: (1) sequentially coating a base film with a release layer and an information layer; (2) molding a holographic pattern layer directly on the information layer; (3) coating the information layer with a first protective layer to fully cover the information layer; (4) plating an aluminum plating layer on the first protection layer to fully cover the first protection layer; (5) coating a second protective layer on the aluminum-plated layer outside the area where the holographic pattern layer is located; (6) carrying out alkali washing on the aluminized layer in a region which is not covered by the second protective layer to form an aluminized region; (7) plating zinc sulfide dielectric layers on the upper surface of the first protective layer and the upper surface of the second protective layer in the aluminum removal region; and (8) coating a back adhesive layer on the upper surface of the zinc sulf