Holographic anti-counterfeiting mark film with stealth effect and manufacturing method thereof

Abstract

The invention provides a holographic anti-counterfeiting mark film with an invisible effect and a manufacturing method thereof. The film comprises a bottom layer, an information layer and a protective layer, the bottom layer is made of a polyethylene glycol terephthalate material; the anti-fake information layer comprises an invisible code attached to the bottom layer, the invisible code is an invisible set image formed by discrete dot matrixes, and the set image is reflected by laser to form an interpretable optical signal; and the protective layer covers the anti-counterfeiting information layer and is used for preventing the anti-counterfeiting information layer from being damaged. The manufacturing method comprises the steps that a diaphragm with the laser holographic effect on at least one face is manufactured, the diaphragm comprises a bottom layer and a bearing layer, and the bottom layer is made of polyethylene glycol terephthalate materials; through a graphic process, through holes of discrete dot matrixes are formed in the bearing layer according to the invisible codes, and the discrete dot matrixes form a set image; the through hole is filled with an invisible material, and the bearing layer becomes an anti-fake information layer with an invisible set image after flattening treatment; and forming a protective layer on the surface of the anti-counterfeiting information layer through a deposition process.

Description

technical field [0001] The invention relates to the technical field of anti-counterfeiting information and marking, in particular to a holographic anti-counterfeiting marking film with an invisible effect and a manufacturing method thereof. Background technique [0002] Holographic technology uses the principle of light wave interference to record information with light waves, and forms a diffuse object beam under laser irradiation; then irradiates the reference beam to the holographic film, and the reference beam interferes with the object beam to convert the phase and amplitude into space Varying intensity, holographic technology can use various forms of fluctuations, such as microwaves, X-rays, sound waves and electronic waves, as long as the fluctuations have sufficient coherence when forming interference. Optical holography is widely used in various aspects such as television, stereoscopic film, exhibition, microscopy, interferometry, lithography, military and detection...

AI Technical Summary

Problems solved by technology

[0003] The existing holographic anti-counterfeiting label film cannot be hidden and is easy to identify, so there is still a greater risk of counterfeiting, resulting in an unsatisfactory anti-counterfeiting effect

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