Manufacturing process of laser anti-counterfeiting BOPP (Biaxially oriented Polypropylene) film

Abstract

The invention discloses a manufacturing process of a laser anti-counterfeiting BOPP (Biaxially oriented Polypropylene) film. The manufacturing process comprises the following steps: preparing a BOPP film by a three-layer co-extrusion biaxial stretching technique and a production process of high-voltage corona treatment before coating; performing mould pressing of a nickel plate marked with laser anti-counterfeiting pattern information and the BOPP film through a full-automatic mould press according to a hot mould pressing principle to manufacture a reusable roll-type BOPP film template with the pattern information; and laminating the roll-type BOPP film template with the pattern information and printing paper coated with UV medium gloss oil through a casting machine, then performing curing through illumination of an ultraviolet light source, and performing stripping and rolling to obtain the laser anti-counterfeiting BOPP film. Through the manufacturing process, the anti-counterfeiting proper of the film is greatly improved while high tensile strength and waterproofness of the film are realized.

Description

technical field [0001] The invention relates to the technical field of plastic film processing, in particular to a manufacturing process of a laser anti-counterfeiting BOPP biaxially stretched film. Background technique [0002] At present, the measurement standards of printing and packaging are: practicability, environmental protection, anti-counterfeiting, economy, aesthetics, etc., which are also the subjects that the printing and packaging industry is committed to research. From the perspective of my country's printing and packaging market, usually in packaging products, in order to improve the packaging effect and grade, laser transfer film, laser anodized aluminum and other materials are used to decorate the packaging box, so that the appearance of the packaging box can achieve the laser transparent mirror effect. . However, the method of using laser transfer film, laser anodized aluminum and other materials to decorate the packaging box has the following three disadva...

AI Technical Summary

Problems solved by technology

However, the method of using laser transfer film, laser anodized aluminum and other materials to decorate the packaging box has the following three disadvantages: First, the laser transfer film and laser anodized aluminum need to use a large amount of metal aluminum, BOPP film and stripping in the production process. Glue and colloids not only cause a waste of resources, but also cause great harm to human health and the ecological environment; second, the production costs of laser transfer film and anodized aluminum are relatively high, especially when using such chemicals in wine packaging Products, the price is higher, which leads to lower and lower profits of packaging and printing products; Third, the traditional laser transfer film, laser anodized aluminum and other processed wine boxes, gift boxes, etc., the post-press processing technology is very cumbersome, and the transfer accuracy is not high. , The content is not rich enough, the production efficiency is low, and the laser and anti-counterfeiting effects have great limitations