The invention belongs to the technical field of packaging materials and particularly relates to a multiple
metal color anti-counterfeiting
aluminum foil sealing
gasket and a preparation method thereof. The multiple
metal color anti-counterfeiting
aluminum foil sealing
gasket is formed by sequentially connecting a mold imaging layer, a
color printing layer, a holographic
information layer, an aluminizing layer, a medium layer, an induction layer, an EVA
adhesive layer and a sealing layer from outside to inside. The preparation method comprises the steps of mold imaging layer
coating, designing, gravure mold pressing, aluminizing, composite transferring and sealing layer
compositing, so that the sealing
gasket is obtained. A gravure and mold pressing integrated method is adopted so that a multiple
metal color holographic graphic anti-counterfeiting technology is realized on a same layer, and the visual
impact and the anti-counterfeiting intensity are enhanced; a
consumer can check and distinguish the sealing gasket easily, all anti-counterfeiting characteristics can be implemented and checked,
a site inspection function can be realized, and simultaneously the unfulfillable non-transferability of an anti-counterfeiting mark is realized; an environment-friendly material is composited for manufacturing the anti-counterfeiting
aluminum foil sealing gasket, so that the environment protection function is improved.