Micro-nano holographic anti-counterfeiting film for paper certificates, and production process and application thereof

Abstract

The invention discloses a micro-nano holographic anti-counterfeiting film for paper certificates, and a production process and application thereof. The micro-nano holographic anti-counterfeiting film for the paper certificates comprises a micro-nano holographic base film; the front of the micro-nano holographic base film is sequentially overlapped with an information layer, a vacuum aluminum layer, a positioning aluminum washing protective layer, a transparent dielectric layer, a main adhesive layer and anti-sticking backing paper; the back of the micro-nano holographic base film is sequentially overlapped with a bonding adhesive layer and a protective film. The anti-counterfeiting film is adhered to a paper certificate through a point knife line of the anti-sticking backing paper, and has the advantages of convenience in use, reliable anti-counterfeiting and the like.

Description

technical field [0001] The invention relates to a micro-nano holographic anti-counterfeiting film for paper certificates, its production process and application, and belongs to the technical field of laser anti-counterfeiting. Background technique [0002] With the rapid development of my country's economy, the comprehensive national strength is constantly increasing, and the international status is increasing day by day. Higher requirements are also put forward for the anti-counterfeiting technology of national public security such as paper document anti-counterfeiting. The anti-counterfeiting characteristics of paper documents are: large amount of information, high frequency of use, and strong personalization. These characteristics and requirements limit the application of some high-tech anti-counterfeiting technologies to a certain extent. As far as the anti-counterfeiting technologies and means currently used on cards in our country are concerned, there are roughly the ...

AI Technical Summary

Problems solved by technology

Its disadvantages are: because the holographic anodized aluminum is opaque, the pattern used can only be used in a small area, the amount of visual information is small, it is relatively independent from the printed pattern and it is easy to be cut and faked, and the anodized aluminum hot stamping is a heat-sensitive adhesive transfer process, and Relatively simple, low cost of imitation, small investment in counterfeiting

[0005] The third is digital anti-counterfeiting such as electronic information and chips. With the development of the modern IT industry, a series of digital anti-counterfeiting: such as magnetic stripes, codes, chips, etc., have the characteristics of large amount of information, strong personalization, and can be detected and upgraded. This technology is not intuitive, the detection must rely on the instrument, and it cannot be identified without the instrument. Even if the decrypted carrier is fake, it will be regarded as "genuine" by the instrument. For example, the current bank cards are often counterfeited or stolen. Digital carrier - the card itself needs anti-counterfeiting

Its disadvantages are: the pattern is non-fixed-point positioning, resulting in poor consistency of the card surface; moreover, it is relatively difficult to popularize plastic sealing technology today; and the plastic sealing adopts the edge sealing form of anti-counterfeiting film, which is not integrated with the card. This form cannot withstand bending and folding, the peeling force is low, and it is more common for the edge seal to come off. Therefore, my country began to reissue in 2005, and the second-generation resident ID cards issued no longer use laser holographic transparent anti-counterfeiting film plastic sealing technology.

The first type cannot be used for reference because its carrier is a PVC or PETG plastic hard sheet, which is different from the paper certificate carrier.

The second is because the terminal used for the entire anti-counterfeiting film needs to be equipped with a special color positioning printer and a professional holographic layer transfer device. The initial investment is too large, and because the holographic layer carries personal information and is transferred together, relatively speaking, holographic There are more or less problems in the abrasion resistance and aging resistance of the transfer layer, as well as the bonding firmness between the holographic layer and the paper, because it hinders the popularization and application of this anti-counterfeiting technology

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