Thin film having laser-carving matrix coding structure and making method of thin film

Abstract

The invention provides a thin film having a laser-carving matrix coding structure and a making method of the thin film, wherein the thin film having the laser-carving matrix coding structure comprisesa thin film body; the at least one laser-carving matrix coding structure is arranged on the thin film body; the laser-carving matrix coding structure is a matrix structure which is formed through permutation and combination of a convex pattern area and a concave pattern area on the thin film body; the convex pattern area is defined by laser-carving micro convex points which are closely distributed; and the concave pattern area is a flat area, except for the convex pattern area, of the laser-carving matrix coding structure. According to the thin film having the laser-carving matrix coding structure provided by the invention, the laser-carving matrix coding structure on the thin film cannot be torn up or destroyed, and the laser-carving matrix coding structure can be kept on the thin film for a long time, so that stronger durability is guaranteed; meanwhile, the thin film, which is free from the dissolution and the volatilization of ink, is applicable to food packaging and the thin filmhas safety; and meanwhile, the laser-carving matrix coding structure, which cannot get fuzzy or worn out, is high in differentiation degree.

Description

Technical field [0001] The invention relates to the technical field of film coding, in particular to a film with a laser engraving matrix coding structure and a manufacturing method thereof. Background technique [0002] The two-dimensional code carrying various product information, the existing technology is attached to PET (polyethylene terephthalate) film, polyester aluminized film (VMPET) and CPP aluminized by labeling or ink printing Film (VMCPP) aluminized film surface or outer surface. The QR code pasted on the film is easily torn and damaged; while the ink of the QR code printed on the film is easily dissolved and volatilized. If the QR code ink is printed in the film, it is also safe for the food in the bottle There are potential adverse effects, and the ink QR code is also susceptible to moisture and wear, which affects the recognition. Therefore, how to make the patterns on the two-dimensional code or other films more durable has become a technical problem that needs...

AI Technical Summary

Problems solved by technology

The two-dimensional code pasted on the film is easy to be torn and damaged; while the ink of the two-dimensional code printed on the film is easy to dissolve and volatilize. If the two-dimensional code ink is printed on the film, it is also safe for the food in the bottle There are potential adverse effects, and the ink QR code is also susceptible to moisture and wear, which affects the recognition

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