A kind of composite film and preparation method thereof

Abstract

The invention provides a composite film which comprises a substrate layer. The upper surface of the substrate layer is provided with a micro lens gate layer and a laser holographic layer. A metal reflecting layer, a composite glue layer and a paper base layer are orderly stacked at the lower surface of the substrate layer, wherein the a micro graphic layer is arranged between the lower surface of the substrate layer and a metal reflecting layer and is corresponding the position of the micro lens gate layer. The composite film is made by using the micro lens grating technology, the laser holographic technology, the precise positioning, the miniature text printing and other processes, a stereoscopic dynamic effect is presented by a finished product package film local micro lens gate graph, and the stereoscopic dynamic effect comprises the graph floating, sinking, translation, vertical, orthogonal, shear and other changes, and other parts present a laser holographic anti-counterfeiting effect. A positioning anti-counterfeiting packaging composite film is divided into flat sheet composite paper products with certain sizes for subsequent enterprise and customer positioning overprinting. Multiple anti-counterfeiting techniques are employed by the invention comprehensively, the effect is novel and unique, and the composite film can be widely used to the markets of packaging and printing, label, anti-counterfeiting and the like.

Description

technical field [0001] The invention belongs to the technical field of materials, and in particular relates to a composite membrane and a preparation method thereof. Background technique [0002] The laser holographic transfer film or laser holographic composite film widely used in the market has been used as an anti-counterfeiting method in the field of packaging and printing for more than ten years, and its unit price has dropped from the original 10 yuan / square meter to about 1 yuan / square meter. The market is flooded. Moreover, its rainbow changes, visual impact, and decorative performance are likely to cause visual fatigue to ordinary consumers. This makes it impossible for ordinary consumers to clearly identify the different laser anti-counterfeiting effects of related products at a glance, resulting in disadvantages such as excessive packaging of laser film and weak anti-counterfeiting. With the promotion of various anti-counterfeiting technologies and the decline o...

AI Technical Summary

Problems solved by technology

Moreover, its rainbow changes, visual impact, and decorative performance are likely to cause visual fatigue to ordinary consumers.

This makes it difficult for ordinary consumers to clearly identify the different laser anti-counterfeiting effects of related products at a glance, resulting in disadvantages such as excessive packaging of laser film and weak anti-counterfeiting strength

With the promotion of various anti-counterfeiting technologies and the decline of technical thresholds, many unscrupulous manufacturers have used relevant means to imitate some high-end products to make a lot of profits, intensify unfair competition, and cause market chaos.

Images