Invisible positioning security packaging film

A concealed positioning anti-counterfeiting packaging film is provided with an invisible anti-counterfeit fluorescent coating on or under the base material layer, and an invisible anti-counterfeiting mark and pattern are scattered on the base material layer, and bottom and top sides of the base material layer are provided with bottoms. Coatings and topcoats. The basecoat is an adhesive layer that firmly bonds the layers. For a packaging film that is to be self-heat sealed, a plastic film having a heat-sealable property may be used as a base material layer, and an invisible anti-fake fluorescent coating may be coated thereon or under it. The anti-counterfeiting packaging film can show the anti-counterfeiting logo fluorescent pattern under the specific instrument or natural sunlight. The utility model has a good anti-counterfeit effect, is not easy to imitate, and is convenient in recognition. Applicable to the packaging of various products, such as cigarettes, medicines, foods and other packaging.