Method and device for producing volume-holographic anti-counterfeiting marks in batch

Abstract

The invention provides a device for producing volume-holographic anti-counterfeiting marks in batch. The device comprises a surface holographic mother set, a film retraction and release winding roller, a copying roller and an exposure system; the surface holographic mother set is provided with an embossment grating structure, and a periodic oblique angle is formed in the surface of the embossmentgrating structure; the film retraction and release winding roller comprises a film retraction winding roller body and a film release winding roller body and is used for retracting and releasing a filmsystem, and the film system comprises base film coated with a release layer and a bonding layer and photosensitive recording medium film arranged on the release layer; the copying roller is used forbearing the surface holographic mother set and cooperating with the film retraction winding roller body and the film release winding roller body in rotation, so that the side, provided with the embossment grating structure, of the surface holographic mother set is bonded to the bonding layer of the base film; the exposure system comprises a pre-exposure light source, a laser interference system and an ultraviolet curing light source and is used for pre-exposing the photosensitive recording medium film, conducting coherent interference for information recording, and conducting curing fixation.The invention further provides a method for producing the volume-holographic anti-counterfeiting marks in batch. According to the device and method, the anti-counterfeiting performance and productionefficiency of the volume-holographic anti-counterfeiting marks can be improved.

Description

technical field [0001] The invention relates to the field of anti-counterfeiting technology, in particular to a method and device for mass-producing volume holographic anti-counterfeiting marks. Background technique [0002] Anti-counterfeiting label refers to the mark that can be transferred to the packaging or accessories of the product by pasting, printing, thermal transfer, etc., and plays an anti-counterfeiting role. At present, the existing anti-counterfeiting marks include laser holographic marks, printed anti-counterfeiting marks, two-dimensional codes, system traceability, etc. Among them, laser holographic marking includes surface holographic marking and volume holographic marking. Surface holographic marking is easy to identify, can be recognized under natural light environment, has strong ornamental value, and can be widely used in industrial production. However, because its surface structure is bare Yes, it is easy to be copied by counterfeiters. The volume ho...

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However, due to technical and cost issues, it has been limited

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