High-speed gold stamping alumite and preparation method thereof

Abstract

The invention discloses alumite capable of achieving high-speed gold stamping and a preparation method of the alumite. The alumite comprises a base film layer, a release layer, an image layer, a coating layer and an adhesive layer. Wherein the image layer comprises a first color layer, a toughening layer and a second color layer which are stacked in sequence; the sides, close to the coating layer, of the first color layer, the toughening layer and the second color layer are provided with microstructures capable of displaying holographic patterns under the action of the coating layer; the first color layer, the toughening layer and the second color layer form an image layer with a sandwich structure, and the toughening layer arranged between the first color layer and the second color layer is used for improving the flexibility of the image layer and providing buffer thermal stress for the first color layer and the second color layer in the hot and pressed process of the alumite; according to the invention, the product defect caused by insufficient performance of the glue layer is made up by regulating and controlling the structure of the image layer, the phenomenon of hard spots or missing spots existing in high-speed hot stamping is solved, and the standard of high-speed hot stamping can be reached under the condition that glue with relatively low performance is used.

Description

technical field [0001] The present application relates to the field of anti-counterfeiting technology, and more specifically, to a high-speed bronzing anodized aluminum and a preparation method thereof. Background technique [0002] Anodized aluminum, also known as bronzing film, is a hot stamping material made of coating and vacuum evaporation on a film base and adding a layer of metal foil. figure 1 It is a schematic diagram of the conventional structure of anodized aluminum foil. The anodized aluminum foil is coated with a release layer and a color layer on the base film, and then coated with an adhesive layer after vacuum evaporation of metal. The production process is generally: coating a release resin on the base film PET and drying to form a release layer, so that it is easy to separate after bronzing; coating a layer of resin (such as acrylic resin) mixed with a dye after being diluted with a solvent After drying, a color layer is formed, which can be molded to form...

AI Technical Summary

Problems solved by technology

[0005] Aiming at at least one defect or improvement requirement of the prior art, the present invention provides a high-speed bronzing anodized aluminum and a preparation method thereof, the purpose of which is to solve the problem that conventional anodized aluminum is prone to pitting or leakage in the color layer after high-speed bronzing is stressed and heated. point of question

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