Nitrogen and fluorine co-doped carbon dot holographic anti-counterfeiting film and preparation method thereof

The invention particularly relates to a nitrogen and fluorine co-doped carbon dot holographic anti-counterfeiting film and a preparation method thereof. The anti-counterfeiting film comprises a base film layer, and the base film layer is sequentially provided with a carbon dot fluorescent coating, a holographic imprinting coating, a holographic information layer and an aluminum plating layer from inside to outside; the preparation method comprises the following steps: 1) preparing the carbon dot fluorescent coating; (2) coating a carbon dot fluorescent coating; (3) coating of the holographic imprint coating; 4) imprinting a holographic information layer; and 5) aluminizing. The anti-counterfeiting film has the advantages that the fluorine atom doped carbon dot fluorescent anti-counterfeiting technology and the holographic anti-counterfeiting technology are combined on the anti-counterfeiting film, the anti-counterfeiting means are enriched, and the anti-counterfeiting performance is improved; 2) the fluoresce