Laser electrolytic aluminum film regeneration coating and preparation method thereof

Abstract

The invention relates to a holographic anti-counterfeiting printing industrial material, in particular to a laser electrolytic aluminum film regeneration coating and a preparation method thereof, and provides a method for overcoming product defects and improving the die pressing property of a half-finished die belt, a laser electrolytic aluminum film regeneration coating for reusing a half-finished product which is difficult for die pressing, and a preparation method thereof. A regeneration zone of which the temperature resistance range is 200-225 DEG C is coated between an imaging layer and an aluminum-plated layer; and the coating consists of the following components in parts by weight: 100 parts of acrylic resin, 0.1-1 part of nano silica, 0.3 parts of anti-foaming agent, 0.2 parts of flatting agent, 0.5 parts of pH value adjusting agent, and a solvent consisting of 37-118 parts of ethyl acetate and 37-118 parts of butyl acetate in the mixture ratio of 1:1. According to different components of a coating composition, the defects of poor temperature resistance and high rejection rate of a film coating are overcome, the problems of peeling and plate adhering are solved, the operation is easy, the production yield is increased, and the die pressing fie belt has high surface brightness and excellent representation.

Description

technical field [0001] The invention relates to a holographic anti-counterfeiting printing industry material, in particular to a laser anodized aluminum film regenerated coating and a preparation method thereof. Background technique [0002] In today's anti-counterfeiting packaging industry, in order to improve the anti-counterfeiting effect of products, the application of holographic laser anti-counterfeiting anodized aluminum is more and more widely used, and its consumption is also increasing year by year. However, in the production process of laser anodized aluminum film, most of them are made of polyester The film is the base film, and one or more layers of coatings with different chemical properties are evenly coated on it, and then the whole production process is completed by the hot molding process and the hot stamping process. In the production of hot molding, often encounter When it comes to the phenomenon of sticking and peeling, the industry generally believes th...

AI Technical Summary

Problems solved by technology

[0002] In today's anti-counterfeiting packaging industry, in order to improve the anti-counterfeiting effect of products, the application of holographic laser anti-counterfeiting anodized aluminum is more and more widely used, and its consumption is also increasing year by year. However, in the production process of laser anodized aluminum film, most of them are made of polyester The film is the base film, and one or more layers of coatings with different chemical properties are evenly coated on it, and then the whole production process is completed by the hot molding process and the hot stamping process. In the production of hot molding, often encounter When it comes to the phenomenon of sticking and peeling, the industry generally believes that the cause of this phenomenon is that the molding temperature is too high and the viscosity of the coating is too high. The commonly used solution is to reduce the molding temperature, which cannot meet the product requirements. The requirement of brightness on the molding temperature affects the appearance and quality of the product. If the molding temperature is too low, the brightness of the anodized aluminum film will not be enough; if the molding temperature is too high, it will easily cause the problem of mold peeling and sticking to the plate, resulting in the product being offline.

Therefore, every enterprise engaged in the production of anodized aluminum has a large number of coated off-line semi-finished products that are difficult to mold, resulting in a drop in yield and waste. In the past, it was only possible to discard such work-in-progress in the situation of being forced to go offline, which caused a lot of waste to the company. How to reuse the discarded materials that will soon become scrap materials has become an urgent problem for engineers and technicians. It is hoped that they can find a The method or material enables the off-line products to be reused. At the same time, in order to maintain the brightness of the coating, the molding temperature required to be guaranteed during molding must be solved; the phenomenon of peeling and sticking to the board that is prone to occur during the molding process must be overcome to facilitate control and Satisfying the process requirements, reducing the molding waste rate, and minimizing the loss are urgent problems for engineers and technicians to solve