Metallic coin stamped with holographic anti-counterfeiting pattern and manufacturing method thereof

Abstract

The invention relates to a laser holographic anti-counterfeiting stamping technology and particularly relates to a metallic coin stamped with a holographic anti-counterfeiting pattern and a manufacturing method thereof and provides the metallic coin which has a laser holographic anti-counterfeiting function and exquisite pattern and is stamped with the holographic anti-counterfeiting pattern and the manufacturing method of the metallic coin. The manufacturing method comprises the following steps of: duplicating a laser holographic image on a metallic nickel plate to form a metal nickel plate for die pressing; coating a release layer, an imaging layer, a die pressing layer, an aluminum plating layer and a dual-layer adhesive layer on a film belt of a base film; positioning, transferring and stamping a laser electrochemical aluminum stamping foil on the metallic coin; heating a stamping head to 80-90DEG C; meanwhile, preheating and improving the temperature of the original metallic coin to 90-100DEG C; and removing the film belt of the base film by the release layer to form the metallic coin with laser holographic pattern. The metallic coin generates a new visual color in the overlapped laser effect and is a novel metal coin anti-counterfeiting type; and in addition, the metallic coin has the advantages of accuracy in positioning, strong three-dimensional sense, abundant layers, simple and quick process, one-time transfer stamping, favorable reproducibility and no pollution.

Description

technical field [0001] The invention relates to laser holographic anti-counterfeiting hot stamping technology, in particular to a method for manufacturing a metal coin with a holographic anti-counterfeiting pattern hot stamped and the metal coin. Background technique [0002] At present, laser holographic anti-counterfeiting marks are widely used in various industries and fields as the crystallization of high-tech, especially laser holographic anti-counterfeiting marks with its profound holographic imaging principle, high-tech plate making technology, complex and It is considered to be the most advanced and economical anti-counterfeiting technical means. At present, laser anti-counterfeiting anodized aluminum is mostly used in the anti-counterfeiting industry in the form of bronzing on paper and cloth. Not only the substrate is soft, but also the thickness is relatively thick. It is small and easy to carry out bronzing operations. Although the laser holographic mark on the m...

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Problems solved by technology

[0002] At present, laser holographic anti-counterfeiting marks are widely used in various industries and fields as the crystallization of high-tech, especially laser holographic anti-counterfeiting marks with its profound holographic imaging principle, high-tech plate making technology, complex and It is considered to be the most advanced and economical anti-counterfeiting technical means. At present, laser anti-counterfeiting anodized aluminum is mostly used in the anti-counterfeiting industry in the form of bronzing on paper and cloth. Not only the substrate is soft, but also the thickness is relatively thick. It is small and easy to carry out bronzing operations. Although the laser holographic mark on the metal coin makes the surface of the metal coin present a multi-level light effect and has a magic effect, the application of laser holographic technology in the casting of metal coins is still in its infancy. Metal coins Due to its high hardness and large thickness, it is very different from ordinary substrates in the industry. Therefore, the laser holographic positioning hot stamping technology that is widely used in cigarette packs, medicine and other packaging has not yet been applied to the field of gold and silver coin manufacturing technology. There are still many problems to be solved urgently to produce a perfect laser holographic positioning hot stamping pattern on the metal coin, for example: 1. The pattern on the metal coin is not clear enough and the brightness is not enough; 2. The adhesion of the surface film layer is poor; 3. In the Ordinary paper or cloth adopts thermal transfer printing, that is, hot stamping. It only needs to heat the hot head of the hot stamping machine to transfer the laser holographic pattern from the film tape to the paper or cloth, while hot stamping on metal coins needs to be based on According to the characteristics of metal coins, it is necessary to adjust the necessary process methods and modify the formula of anodized aluminum to realize the hot stamping of metal coins. How to perfectly transfer the hologram to the metal object, so that the metal coin not only shows a very high decorative effect, but also It has a very high anti-counterfeiting ability, so that the metal coin has a unique effect, and the operation requirements are simple, environmentally friendly and stable implementation is an urgent problem to be solved by the present invention

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