BOPP (Biaxially-oriented Polypropylene) thermal-sensitive film applicable to relief UV (Ultraviolet) printing

Abstract

The invention relates to a BOPP (Biaxially-oriented Polypropylene) thermal-sensitive film applicable to relief UV (Ultraviolet) printing. The BOPP thermal-sensitive film comprises a middle core layer(1), and a first heat insulation layer (2), a second heat insulation layer (3), a thermal-sensitive layer (4), a first enhancement layer (5), a first buffering layer (6), an upper surface layer (7), asecond enhancement layer (8), a second buffering layer (9) and a lower surface layer (10), wherein the first heat insulation layer (2) and the second heat insulation layer (3) are fixedly arranged onthe middle core layer (1) at the same time; the BOPP thermal-sensitive film is characterized in that the first enhancement layer (5) and the first buffering layer (6), and the thermal-sensitive layer(4) and the first enhancement layer (5) are in saw-tooth shape contact; a first label (11) is formed between the upper surface of the first enhancement layer (5) and the lower surface of the first buffering layer (6); a second label (12) is formed between the lower surface of the first enhancement layer (5) and the upper surface of the thermal-sensitive layer (4); meanwhile, the BOPP thermal-sensitive film is provided with an RFID (Radio Frequency Identification) label and a two-dimensional code label, so that the BOPP thermal-sensitive film is conveniently distinguished by external staff; the labels are arranged at a position, close to the surface, in the film and abrasion is not caused by external squeezing and deformation, and information is easy to store for a long time.

Description

Technical field [0001] The invention relates to a heat-sensitive film, in particular to a BOPP heat-sensitive film suitable for relief UV printing. Background technique [0002] The so-called BOPP heat-sensitive film means that when the ambient temperature of the film changes, the shape, ductility, permeability, separation and other properties of the film will undergo mutations. At the same time, due to its colorless, odorless, non-toxic, transparent, With good stretchability, it is widely used in technical fields such as separation and purification, artificial organs, drug control, and bionic science. However, the BOPP thermal film in the prior art has a single function and often only has one of the RFID tag and the QR code tag. When the corresponding device is missing, the relevant information cannot be successfully identified, and the tags are mostly set on the surface of the film by printing. , It is very easy to cause abrasion after external extrusion and deformation, which...

AI Technical Summary

Problems solved by technology

However, the BOPP heat-sensitive film in the prior art has a single function and often only has one of the RFID label and the two-dimensional code label. When there is no corresponding device, the relevant information cannot be successfully identified, and most of the labels are set on the surface of the film by printing. , it is easy to wear out after being squeezed and deformed by the outside world, which is not convenient for information preservation

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